bump up stargz-snapshotter

The git repo of github.com/containerd/stargz-snapshotter now has two go.mod modules:
- github.com/containerd/stargz-snapshotter
- github.com/containerd/stargz-snapshotter/estargz

So we need to have the following `replace` directive in `go.mod`:
```
github.com/containerd/stargz-snapshotter/estargz => github.com/containerd/stargz-snapshotter/estargz <VERSION>
```

Otherwise `go mod tidy` fails with the following error:
```
go: github.com/containerd/stargz-snapshotter@v0.2.1-0.20201217071531-2b97b583765b requires
        github.com/containerd/stargz-snapshotter/estargz@v0.0.0-00010101000000-000000000000: invalid version: unknown revision 000000000000
```

ref: https://github.com/containerd/stargz-snapshotter/pull/195

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
v0.9
Akihiro Suda 2020-12-18 14:59:10 +09:00
parent b75c05157d
commit 59880bef10
No known key found for this signature in database
GPG Key ID: 49524C6F9F638F1A
362 changed files with 27772 additions and 6853 deletions

View File

@ -12,7 +12,8 @@ ARG ROOTLESSKIT_VERSION=v0.11.1
ARG CNI_VERSION=v0.8.7
ARG SHADOW_VERSION=4.8.1
ARG FUSEOVERLAYFS_VERSION=v1.3.0
ARG STARGZ_SNAPSHOTTER_VERSION=v0.2.0
# master (Dec 17, 2020)
ARG STARGZ_SNAPSHOTTER_VERSION=2b97b583765b26f7284fe13f39f4ef925ecf87c3
ARG ALPINE_VERSION=3.12

20
go.mod
View File

@ -9,11 +9,11 @@ require (
github.com/Microsoft/hcsshim v0.8.10
github.com/codahale/hdrhistogram v0.0.0-20160425231609-f8ad88b59a58 // indirect
github.com/containerd/console v1.0.1
github.com/containerd/containerd v1.4.1-0.20201117152358-0edc412565dc
github.com/containerd/continuity v0.0.0-20200710164510-efbc4488d8fe
github.com/containerd/containerd v1.4.1-0.20201215193253-e922d5553d12
github.com/containerd/continuity v0.0.0-20201208142359-180525291bb7
github.com/containerd/go-cni v1.0.1
github.com/containerd/go-runc v0.0.0-20201020171139-16b287bc67d0
github.com/containerd/stargz-snapshotter v0.2.0
github.com/containerd/stargz-snapshotter v0.2.1-0.20201217071531-2b97b583765b
github.com/containerd/typeurl v1.0.1
github.com/coreos/go-systemd/v22 v22.1.0
github.com/docker/cli v20.10.0-beta1.0.20201029214301-1d20b15adc38+incompatible
@ -22,11 +22,11 @@ require (
github.com/docker/go-connections v0.4.0
github.com/docker/libnetwork v0.8.0-dev.2.0.20200917202933-d0951081b35f
github.com/gofrs/flock v0.7.3
github.com/gogo/googleapis v1.3.2
github.com/gogo/googleapis v1.4.0
github.com/gogo/protobuf v1.3.1
// protobuf: the actual version is replaced in replace()
github.com/golang/protobuf v1.4.2
github.com/google/go-cmp v0.4.1
github.com/golang/protobuf v1.4.3
github.com/google/go-cmp v0.5.1
github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
github.com/gorilla/mux v1.8.0 // indirect
github.com/grpc-ecosystem/go-grpc-middleware v1.2.0
@ -61,15 +61,17 @@ require (
go.etcd.io/bbolt v1.3.5
golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9
golang.org/x/net v0.0.0-20200707034311-ab3426394381
golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208
golang.org/x/sys v0.0.0-20201013081832-0aaa2718063a
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
golang.org/x/sys v0.0.0-20201202213521-69691e467435
golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1
// genproto: the actual version is replaced in replace()
google.golang.org/genproto v0.0.0-20200527145253-8367513e4ece
google.golang.org/grpc v1.29.1
google.golang.org/grpc v1.30.0
)
replace (
// estargz: needs this replace because stargz-snapshotter git repo has two go.mod modules.
github.com/containerd/stargz-snapshotter/estargz => github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201217071531-2b97b583765b
// protobuf: corresponds to containerd
github.com/golang/protobuf => github.com/golang/protobuf v1.3.5
github.com/hashicorp/go-immutable-radix => github.com/tonistiigi/go-immutable-radix v0.0.0-20170803185627-826af9ccf0fe

118
go.sum
View File

@ -96,12 +96,13 @@ github.com/Microsoft/go-winio v0.4.15-0.20200908182639-5b44b70ab3ab/go.mod h1:tT
github.com/Microsoft/go-winio v0.4.15 h1:qkLXKzb1QoVatRyd/YlXZ/Kg0m5K3SPuoD82jjSOaBc=
github.com/Microsoft/go-winio v0.4.15/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
github.com/Microsoft/hcsshim v0.8.6/go.mod h1:Op3hHsoHPAvb6lceZHDtd9OkTew38wNoXnJs8iY7rUg=
github.com/Microsoft/hcsshim v0.8.7-0.20190325164909-8abdbb8205e4/go.mod h1:Op3hHsoHPAvb6lceZHDtd9OkTew38wNoXnJs8iY7rUg=
github.com/Microsoft/hcsshim v0.8.7/go.mod h1:OHd7sQqRFrYd3RmSgbgji+ctCwkbq2wbEYNSzOYtcBQ=
github.com/Microsoft/hcsshim v0.8.9/go.mod h1:5692vkUqntj1idxauYlpoINNKeqCiG6Sg38RRsjT5y8=
github.com/Microsoft/hcsshim v0.8.10 h1:k5wTrpnVU2/xv8ZuzGkbXVd3js5zJ8RnumPo5RxiIxU=
github.com/Microsoft/hcsshim v0.8.10/go.mod h1:g5uw8EV2mAlzqe94tfNBNdr89fnbD/n3HV0OhsddkmM=
github.com/Microsoft/hcsshim/test v0.0.0-20200826032352-301c83a30e7c h1:c8XLHKgdaCIhlht1ns4ya1ypf408bYWac2XMVijauYw=
github.com/Microsoft/hcsshim/test v0.0.0-20200826032352-301c83a30e7c/go.mod h1:30A5igQ91GEmhYJF8TaRP79pMBOYynRsyOByfVV0dU4=
github.com/Microsoft/hcsshim/test v0.0.0-20201119174602-966bebae11b4 h1:1Q14MTWJKwTKSXQqAumktvGuUZ5dZflHNm/sMgGa7/4=
github.com/Microsoft/hcsshim/test v0.0.0-20201119174602-966bebae11b4/go.mod h1:IrOsC3sbIiki4idDR4z1Plxm8vAUM5dKN/HEVkRU0GI=
github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
@ -115,6 +116,7 @@ github.com/alecthomas/kingpin v2.2.6+incompatible/go.mod h1:59OFYbFVLKQKq+mqrL6R
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
github.com/alexflint/go-filemutex v0.0.0-20171022225611-72bdc8eae2ae/go.mod h1:CgnQgUtFrFz9mxFNtED3jI5tLDjKlOM+oUF/sTk6ps0=
github.com/apex/log v1.1.4/go.mod h1:AlpoD9aScyQfJDVHmLMEcx4oU6LqzkWp4Mg9GdAcEvQ=
@ -139,6 +141,7 @@ github.com/aybabtme/rgbterm v0.0.0-20170906152045-cc83f3b3ce59/go.mod h1:q/89r3U
github.com/beorn7/perks v0.0.0-20160804104726-4c0e84591b9a/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
github.com/bitly/go-simplejson v0.5.0/go.mod h1:cXHtHw4XUPsvGaxgjIAn8PhEWG9NfngEKAMDJEczWVA=
github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
@ -161,6 +164,7 @@ github.com/cavaliercoder/go-cpio v0.0.0-20180626203310-925f9528c45e/go.mod h1:oD
github.com/census-instrumentation/opencensus-proto v0.2.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/checkpoint-restore/go-criu/v4 v4.1.0/go.mod h1:xUQBLp4RLc5zJtWY++yjOoMoB5lihDt7fai+75m+rGw=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
@ -173,45 +177,73 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
github.com/codahale/hdrhistogram v0.0.0-20160425231609-f8ad88b59a58 h1:hHWif/4GirK3P5uvCyyj941XSVIQDzuJhbEguCICdPE=
github.com/codahale/hdrhistogram v0.0.0-20160425231609-f8ad88b59a58/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
github.com/containerd/aufs v0.0.0-20200908144142-dab0cbea06f4/go.mod h1:nukgQABAEopAHvB6j7cnP5zJ+/3aVcE7hCYqvIwAHyE=
github.com/containerd/btrfs v0.0.0-20201111183144-404b9149801e/go.mod h1:jg2QkJcsabfHugurUvvPhS3E08Oxiuh5W/g1ybB4e0E=
github.com/containerd/cgroups v0.0.0-20190717030353-c4b9ac5c7601/go.mod h1:X9rLEHIqSf/wfK8NsPqxJmeZgW4pcfzdXITDrUSJ6uI=
github.com/containerd/cgroups v0.0.0-20190919134610-bf292b21730f/go.mod h1:OApqhQ4XNSNC13gXIwDjhOQxjWa/NxkwZXJ1EvqT0ko=
github.com/containerd/cgroups v0.0.0-20200531161412-0dbf7f05ba59/go.mod h1:pA0z1pT8KYB3TCXK/ocprsh7MAkoW8bZVzPdih9snmM=
github.com/containerd/cgroups v0.0.0-20200710171044-318312a37340 h1:9atoWyI9RtXFwf7UDbme/6M8Ud0rFrx+Q3ZWgSnsxtw=
github.com/containerd/cgroups v0.0.0-20200710171044-318312a37340/go.mod h1:s5q4SojHctfxANBDvMeIaIovkq29IP48TKAxnhYRxvo=
github.com/containerd/cgroups v0.0.0-20200824123100-0b889c03f102 h1:Qf4HiqfvmB7zS6scsmNgTLmByHbq8n9RTF39v+TzP7A=
github.com/containerd/cgroups v0.0.0-20200824123100-0b889c03f102/go.mod h1:s5q4SojHctfxANBDvMeIaIovkq29IP48TKAxnhYRxvo=
github.com/containerd/console v0.0.0-20180822173158-c12b1e7919c1/go.mod h1:Tj/on1eG8kiEhd0+fhSDzsPAFESxzBBvdyEgyryXffw=
github.com/containerd/console v0.0.0-20181022165439-0650fd9eeb50/go.mod h1:Tj/on1eG8kiEhd0+fhSDzsPAFESxzBBvdyEgyryXffw=
github.com/containerd/console v0.0.0-20191206165004-02ecf6a7291e/go.mod h1:8Pf4gM6VEbTNRIT26AyyU7hxdQU3MvAvxVI0sc00XBE=
github.com/containerd/console v1.0.0/go.mod h1:8Pf4gM6VEbTNRIT26AyyU7hxdQU3MvAvxVI0sc00XBE=
github.com/containerd/console v1.0.1 h1:u7SFAJyRqWcG6ogaMAx3KjSTy1e3hT9QxqX7Jco7dRc=
github.com/containerd/console v1.0.1/go.mod h1:XUsP6YE/mKtz6bxc+I8UiKKTP04qjQL4qcS3XoQ5xkw=
github.com/containerd/containerd v1.2.10/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.3.0-beta.2.0.20190828155532-0293cbd26c69/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.3.0/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.3.1-0.20191213020239-082f7e3aed57/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.3.2/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.0-beta.2.0.20200729163537-40b22ef07410/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.0/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.1-0.20201110220052-687fcd73ec53/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.1-0.20201117152358-0edc412565dc h1:XbZ/DDsFDigeOQ9M3YXhvE6d1AEHdxKAzIgkswip7dI=
github.com/containerd/containerd v1.4.1-0.20201117152358-0edc412565dc/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.1-0.20201215193253-e922d5553d12 h1:60sWUyFasoFzf3VHzRG+M/pJnUFvACl59dN8r3/goEE=
github.com/containerd/containerd v1.4.1-0.20201215193253-e922d5553d12/go.mod h1:uwcJSj9XHg1EcCoHTaUiP/sozdOzuU7hi3VInP+9lww=
github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
github.com/containerd/continuity v0.0.0-20190815185530-f2a389ac0a02/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
github.com/containerd/continuity v0.0.0-20191127005431-f65d91d395eb/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
github.com/containerd/continuity v0.0.0-20200710164510-efbc4488d8fe h1:PEmIrUvwG9Yyv+0WKZqjXfSFDeZjs/q15g0m08BYS9k=
github.com/containerd/continuity v0.0.0-20200710164510-efbc4488d8fe/go.mod h1:cECdGN1O8G9bgKTlLhuPJimka6Xb/Gg7vYzCTNVxhvo=
github.com/containerd/continuity v0.0.0-20201208142359-180525291bb7 h1:6ejg6Lkk8dskcM7wQ28gONkukbQkM4qpj4RnYbpFzrI=
github.com/containerd/continuity v0.0.0-20201208142359-180525291bb7/go.mod h1:kR3BEg7bDFaEddKm54WSmrol1fKWDU1nKYkgrcgZT7Y=
github.com/containerd/fifo v0.0.0-20180307165137-3d5202aec260/go.mod h1:ODA38xgv3Kuk8dQz2ZQXpnv/UZZUHUCL7pnLehbXgQI=
github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448/go.mod h1:ODA38xgv3Kuk8dQz2ZQXpnv/UZZUHUCL7pnLehbXgQI=
github.com/containerd/fifo v0.0.0-20200410184934-f15a3290365b/go.mod h1:jPQ2IAeZRCYxpS/Cm1495vGFww6ecHmMk1YJH2Q5ln0=
github.com/containerd/fifo v0.0.0-20201026212402-0724c46b320c h1:1c6xmkNiu6Jnr6AKGM91GGNsfU+nPNFvw9BZFSo0E+c=
github.com/containerd/fifo v0.0.0-20201026212402-0724c46b320c/go.mod h1:jPQ2IAeZRCYxpS/Cm1495vGFww6ecHmMk1YJH2Q5ln0=
github.com/containerd/go-cni v1.0.1 h1:VXr2EkOPD0v1gu7CKfof6XzEIDzsE/dI9yj/W7PSWLs=
github.com/containerd/go-cni v1.0.1/go.mod h1:+vUpYxKvAF72G9i1WoDOiPGRtQpqsNW/ZHtSlv++smU=
github.com/containerd/go-runc v0.0.0-20180907222934-5a6d9f37cfa3/go.mod h1:IV7qH3hrUgRmyYrtgEeGWJfWbgcHL9CSRruz2Vqcph0=
github.com/containerd/go-runc v0.0.0-20190911050354-e029b79d8cda/go.mod h1:IV7qH3hrUgRmyYrtgEeGWJfWbgcHL9CSRruz2Vqcph0=
github.com/containerd/go-runc v0.0.0-20200220073739-7016d3ce2328/go.mod h1:PpyHrqVs8FTi9vpyHwPwiNEGaACDxT/N/pLcvMSRA9g=
github.com/containerd/go-runc v0.0.0-20201020171139-16b287bc67d0 h1:e+50zk22gvHLJKe8+d+xSMyA88PPQk/XfWuUw1BdnPA=
github.com/containerd/go-runc v0.0.0-20201020171139-16b287bc67d0/go.mod h1:cNU0ZbCgCQVZK4lgG3P+9tn9/PaJNmoDXPpoJhDR+Ok=
github.com/containerd/stargz-snapshotter v0.2.0 h1:wqeRR/VLMA7+X0y9seCyZwYApnjjwVPbGE50hANGu8M=
github.com/containerd/stargz-snapshotter v0.2.0/go.mod h1:ZVuFc3geBZie3ckDF7FBBa0c6McGFt35m0CwTHcala8=
github.com/containerd/imgcrypt v1.0.1/go.mod h1:mdd8cEPW7TPgNG4FpuP3sGBiQ7Yi/zak9TYCG3juvb0=
github.com/containerd/nri v0.0.0-20201007170849-eb1350a75164/go.mod h1:+2wGSDGFYfE5+So4M5syatU0N0f0LbWpuqyMi4/BE8c=
github.com/containerd/stargz-snapshotter v0.2.1-0.20201217071531-2b97b583765b h1:mcOHCuHEZLGFTCdS6LYjsbm4iePr2j7towTjtb8as0I=
github.com/containerd/stargz-snapshotter v0.2.1-0.20201217071531-2b97b583765b/go.mod h1:sOeBRUp2i02FfLARbAMF7AUS8FrzLHL8txn4R94JeEI=
github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201217071531-2b97b583765b h1:tnP4txDzNKsBOISNYG/f48Mt477CBeh9sS5rlu8MvSY=
github.com/containerd/stargz-snapshotter/estargz v0.0.0-20201217071531-2b97b583765b/go.mod h1:E9uVkkBKf0EaC39j2JVW9EzdNhYvpz6eQIjILHebruk=
github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
github.com/containerd/ttrpc v0.0.0-20190828172938-92c8520ef9f8/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
github.com/containerd/ttrpc v0.0.0-20191028202541-4f1b8fe65a5c/go.mod h1:LPm1u0xBw8r8NOKoOdNMeVHSawSsltak+Ihv+etqsE8=
github.com/containerd/ttrpc v1.0.1 h1:IfVOxKbjyBn9maoye2JN95pgGYOmPkQVqxtOu7rtNIc=
github.com/containerd/ttrpc v1.0.1/go.mod h1:UAxOpgT9ziI0gJrmKvgcZivgxOp8iFPSk8httJEt98Y=
github.com/containerd/ttrpc v1.0.2 h1:2/O3oTZN36q2xRolk0a2WWGgh7/Vf/liElg5hFYLX9U=
github.com/containerd/ttrpc v1.0.2/go.mod h1:UAxOpgT9ziI0gJrmKvgcZivgxOp8iFPSk8httJEt98Y=
github.com/containerd/typeurl v0.0.0-20180627222232-a93fcdb778cd/go.mod h1:Cm3kwCdlkCfMSHURc+r6fwoGH6/F1hH3S4sg0rLFWPc=
github.com/containerd/typeurl v0.0.0-20190911142611-5eb25027c9fd/go.mod h1:GeKYzf2pQcqv7tJ0AoCuuhtnqhva5LNU3U+OyKxxJpk=
github.com/containerd/typeurl v1.0.1 h1:PvuK4E3D5S5q6IqsPDCy928FhP0LUIGcmZ/Yhgp5Djw=
github.com/containerd/typeurl v1.0.1/go.mod h1:TB1hUtrpaiO88KEK56ijojHS1+NeF0izUACaJW2mdXg=
github.com/containerd/zfs v0.0.0-20200918131355-0a33824f23a2/go.mod h1:8IgZOBdv8fAgXddBT4dBXJPtxyRsejFIpXoklgxgEjw=
github.com/containernetworking/cni v0.7.1/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
github.com/containernetworking/cni v0.8.0 h1:BT9lpgGoH4jw3lFC7Odz2prU5ruiYKcgAjMCbgybcKI=
github.com/containernetworking/cni v0.8.0/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
github.com/containernetworking/plugins v0.8.6/go.mod h1:qnw5mN19D8fIwkqW7oHHYDHVlzhJpcY6TQxn/fUyDDM=
github.com/containernetworking/plugins v0.8.7/go.mod h1:R7lXeZaBzpfqapcAbHRW8/CYwm0dHzbz0XEjofx0uB0=
github.com/containers/ocicrypt v1.0.1/go.mod h1:MeJDzk1RJHv89LjsH0Sp5KTY3ZYkjXO/C+bKAeWFIrc=
github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
@ -220,6 +252,7 @@ github.com/coreos/go-iptables v0.4.5/go.mod h1:/mVI274lEDI2ns62jHCDnCyBF9Iwsmeka
github.com/coreos/go-oidc v2.1.0+incompatible/go.mod h1:CgnwVTmzoESiwO9qyAFEMiHoZ1nMCKZlZ9V6mm3/LKc=
github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/coreos/go-systemd v0.0.0-20161114122254-48702e0da86b/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e h1:Wf6HqHfScWJN9/ZjdUKyjop4mf3Qdd+1TvvltAvM3m8=
github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
@ -257,6 +290,7 @@ github.com/docker/cli v0.0.0-20191017083524-a8ff7f821017/go.mod h1:JLrzqnKDaYBop
github.com/docker/cli v20.10.0-beta1.0.20201029214301-1d20b15adc38+incompatible h1:r99CiNpN5pxrSuSH36suYxrbLxFOhBvQ0sEH6624MHs=
github.com/docker/cli v20.10.0-beta1.0.20201029214301-1d20b15adc38+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
github.com/docker/distribution v0.0.0-20190905152932-14b96e55d84c/go.mod h1:0+TTO4EOBfRPhZXAeF1Vu+W3hHZ8eLp8PgKVZlcvtFY=
github.com/docker/distribution v2.7.1-0.20190205005809-0d3efadf0154+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
github.com/docker/distribution v2.7.1+incompatible h1:a5mlkVzth6W5A4fOsS3D2EO5BUmsJpcB+cRlLU7cSug=
github.com/docker/distribution v2.7.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
github.com/docker/docker v0.0.0-20200511152416-a93e9eb0e95c/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
@ -269,9 +303,11 @@ github.com/docker/docker-credential-helpers v0.6.3 h1:zI2p9+1NQYdnG6sMU26EX4aVGl
github.com/docker/docker-credential-helpers v0.6.3/go.mod h1:WRaJzqw3CTB9bk10avuGsjVBZsD05qeibJ1/TYlvc0Y=
github.com/docker/go-connections v0.4.0 h1:El9xVISelRB7BuFusrZozjnkIM5YnzCViNKohAFqRJQ=
github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5XhDvyHbTtUxmeec=
github.com/docker/go-events v0.0.0-20170721190031-9461782956ad/go.mod h1:Uw6UezgYA44ePAFQYUehOuCzmy5zmg/+nl2ZfMWGkpA=
github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c h1:+pKlWGMw7gf6bQ+oDZB4KHQFypsfjYlq/C4rfL7D3g8=
github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c/go.mod h1:Uw6UezgYA44ePAFQYUehOuCzmy5zmg/+nl2ZfMWGkpA=
github.com/docker/go-metrics v0.0.0-20180209012529-399ea8c73916/go.mod h1:/u0gXw0Gay3ceNrsHubL3BtdOL2fHf93USgMTe0W5dI=
github.com/docker/go-metrics v0.0.1/go.mod h1:cG1hvH2utMXtqgqqYE9plW6lDxS3/5ayHzueweSI3Vw=
github.com/docker/go-units v0.4.0 h1:3uh0PgVws3nIA0Q+MwDC8yjEPf9zjRfZZWXZYDct3Tw=
github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
github.com/docker/libnetwork v0.8.0-dev.2.0.20200917202933-d0951081b35f h1:jC/ZXgYdzCUuKFkKGNiekhnIkGfUrdelEqvg4Miv440=
@ -298,6 +334,7 @@ github.com/fortytw2/leaktest v1.3.0/go.mod h1:jDsjWgpAGjm2CA7WthBh/CdZYEPF31XHqu
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
github.com/fullsailor/pkcs7 v0.0.0-20190404230743-d7302db945fa/go.mod h1:KnogPXtdwXqoenmZCw6S+25EAm2MkxbG0deNDu4cbSA=
github.com/garyburd/redigo v0.0.0-20150301180006-535138d7bcd7/go.mod h1:NR3MbYisc3/PwhQ00EMzDiPmrwpPxAn5GI05/YaO1SY=
github.com/ghodss/yaml v0.0.0-20150909031657-73d445a93680/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
@ -346,6 +383,7 @@ github.com/go-toolsmith/typep v1.0.0/go.mod h1:JSQCQMUPdRlMZFswiq3TGpNp1GMktqkR2
github.com/go-toolsmith/typep v1.0.2/go.mod h1:JSQCQMUPdRlMZFswiq3TGpNp1GMktqkR2Ns5AIQkATU=
github.com/go-xmlfmt/xmlfmt v0.0.0-20191208150333-d5b6f63a941b/go.mod h1:aUCEOzzezBEjDBbFBoSiya/gduyIiWYRP6CnSFIV8AM=
github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
github.com/godbus/dbus v0.0.0-20151105175453-c7fdd8b5cd55/go.mod h1:/YcGZj5zSblfDWMMoOzV4fas9FZnQYTkDnsGvmh2Grw=
github.com/godbus/dbus v0.0.0-20180201030542-885f9cc04c9c/go.mod h1:/YcGZj5zSblfDWMMoOzV4fas9FZnQYTkDnsGvmh2Grw=
github.com/godbus/dbus v0.0.0-20190422162347-ade71ed3457e h1:BWhy2j3IXJhjCbC68FptL43tDKIq8FladmaTs3Xs7Z8=
github.com/godbus/dbus v0.0.0-20190422162347-ade71ed3457e/go.mod h1:bBOAhwG1umN6/6ZUMtDFBMQR8jRg9O75tm9K00oMsK4=
@ -355,11 +393,12 @@ github.com/gofrs/flock v0.0.0-20190320160742-5135e617513b/go.mod h1:F1TvTiK9OcQq
github.com/gofrs/flock v0.7.3 h1:I0EKY9l8HZCXTMYC4F80vwT6KNypV9uYKP3Alm/hjmQ=
github.com/gofrs/flock v0.7.3/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
github.com/gogo/googleapis v1.2.0/go.mod h1:Njal3psf3qN6dwBtQfUmBZh2ybovJ0tlu3o/AC7HYjU=
github.com/gogo/googleapis v1.3.2 h1:kX1es4djPJrsDhY7aZKJy7aZasdcB5oSOEphMjSB53c=
github.com/gogo/googleapis v1.3.2/go.mod h1:5YRNX2z1oM5gXdAkurHa942MDgEJyk02w4OecKY87+c=
github.com/gogo/googleapis v1.4.0 h1:zgVt4UpGxcqVOw97aRGxT4svlcmdK35fynLNctY32zI=
github.com/gogo/googleapis v1.4.0/go.mod h1:5YRNX2z1oM5gXdAkurHa942MDgEJyk02w4OecKY87+c=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
github.com/gogo/protobuf v1.2.2-0.20190723190241-65acae22fc9d/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
github.com/gogo/protobuf v1.3.0/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
github.com/gogo/protobuf v1.3.1 h1:DqDEcV5aeaTmdFBePNpYsp3FlcVH/2ISVVM9Qf8PSls=
github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
@ -404,6 +443,8 @@ github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.4.1 h1:/exdXoGamhu5ONeUJH0deniYLWYvQwW66yvlfiiKTu0=
github.com/google/go-cmp v0.4.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.1 h1:JFrFEBb2xKufg6XkJsJr+WbKb4FQlURi5RUcBveYu9k=
github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-containerregistry v0.1.2/go.mod h1:GPivBPgdAyd2SU+vf6EpsgOtWDuPqjW0hJZt4rNdTZ4=
github.com/google/go-github/v28 v28.1.1/go.mod h1:bsqJWQX05omyWVmc00nEUql9mhQyv38lDZ8kPZcQVoM=
github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
@ -466,8 +507,8 @@ github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645 h1
github.com/grpc-ecosystem/grpc-opentracing v0.0.0-20180507213350-8e809c8a8645/go.mod h1:6iZfnjpejD4L/4DwD7NryNaJyCQdzwWwH2MWhCA90Kw=
github.com/hanwen/go-fuse v1.0.0 h1:GxS9Zrn6c35/BnfiVsZVWmsG803xwE7eVRDvcf/BEVc=
github.com/hanwen/go-fuse v1.0.0/go.mod h1:unqXarDXqzAk0rt98O2tVndEPIpUgLD9+rwFisZH3Ok=
github.com/hanwen/go-fuse/v2 v2.0.3 h1:kpV28BKeSyVgZREItBLnaVBvOEwv2PuhNdKetwnvNHo=
github.com/hanwen/go-fuse/v2 v2.0.3/go.mod h1:0EQM6aH2ctVpvZ6a+onrQ/vaykxh2GH7hy3e13vzTUY=
github.com/hanwen/go-fuse/v2 v2.0.4-0.20201208195215-4a458845028b h1:WEjjS1Vt8Oslac2LQ9nldgcm0Dx0VGMY21YVveK2ZUA=
github.com/hanwen/go-fuse/v2 v2.0.4-0.20201208195215-4a458845028b/go.mod h1:0EQM6aH2ctVpvZ6a+onrQ/vaykxh2GH7hy3e13vzTUY=
github.com/hashicorp/consul/api v1.1.0/go.mod h1:VmuI/Lkw1nC05EYQWNKwWGbkg+FbDBtguAZLlVdkD9Q=
github.com/hashicorp/consul/sdk v0.1.1/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
github.com/hashicorp/errwrap v0.0.0-20141028054710-7554cd9344ce/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
@ -479,6 +520,7 @@ github.com/hashicorp/go-msgpack v0.5.3/go.mod h1:ahLV/dePpqEmjfWmKiqvPkv/twdG7iP
github.com/hashicorp/go-multierror v0.0.0-20161216184304-ed905158d874/go.mod h1:JMRHfdO9jKNzS/+BTlxCjKNQHg/jZAft8U7LloJvN7I=
github.com/hashicorp/go-multierror v1.0.0 h1:iVjPR7a6H0tWELX5NxNe7bYopibicUzc7uPribsnS6o=
github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
github.com/hashicorp/go-multierror v1.1.0/go.mod h1:spPvp8C1qA32ftKqdAHm4hHTbPw+vmowP0z+KUhOZdA=
github.com/hashicorp/go-retryablehttp v0.6.4/go.mod h1:vAew36LZh98gCBJNLH42IQ1ER/9wtLZZ8meHqQvEYWY=
github.com/hashicorp/go-retryablehttp v0.6.6/go.mod h1:vAew36LZh98gCBJNLH42IQ1ER/9wtLZZ8meHqQvEYWY=
github.com/hashicorp/go-rootcerts v1.0.0/go.mod h1:K6zTfqpRlCUIjkwsN4Z+hiSfzSTQa6eBIzfwKfwNnHU=
@ -505,6 +547,8 @@ github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJ
github.com/imdario/mergo v0.3.8/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
github.com/imdario/mergo v0.3.9 h1:UauaLniWCFHWd+Jp9oCEkTBj8VO/9DKg3PV3VCNMDIg=
github.com/imdario/mergo v0.3.9/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
github.com/imdario/mergo v0.3.10 h1:6q5mVkdH/vYmqngx7kZQTjJ5HRsx+ImorDIEQ+beJgc=
github.com/imdario/mergo v0.3.10/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
github.com/ishidawataru/sctp v0.0.0-20191218070446-00ab2ac2db07 h1:rw3IAne6CDuVFlZbPOkA7bhxlqawFh7RJJ+CejfMaxE=
github.com/ishidawataru/sctp v0.0.0-20191218070446-00ab2ac2db07/go.mod h1:co9pwDoBCm1kGxawmb4sPq0cSIOOWNPT4KnHotMP1Zg=
@ -536,6 +580,8 @@ github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQL
github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/klauspost/compress v1.4.0/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
github.com/klauspost/compress v1.4.1/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A=
github.com/klauspost/compress v1.11.3 h1:dB4Bn0tN3wdCzQxnS8r06kV74qN/TAfaIS0bVE8h3jc=
github.com/klauspost/compress v1.11.3/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
github.com/klauspost/cpuid v0.0.0-20180405133222-e7e905edc00e/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
@ -586,9 +632,11 @@ github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOq
github.com/mattn/go-zglob v0.0.1/go.mod h1:9fxibJccNxU2cnpIKLRRFA7zX7qhkJIQWBb449FYHOo=
github.com/mattn/goveralls v0.0.2/go.mod h1:8d1ZMHsd7fW6IRPKQh46F2WRpyib5/X4FOpevwGNQEw=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
github.com/maxbrunsfeld/counterfeiter/v6 v6.2.2/go.mod h1:eD9eIE7cdwcMi9rYluz88Jz2VyhSmden33/aXg4oVIY=
github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
github.com/miekg/dns v1.0.14/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
github.com/mistifyio/go-zfs v2.1.2-0.20190413222219-f784269be439+incompatible/go.mod h1:8AuVvqP/mXw1px98n46wfvcGfQ4ci2FwoAjKYxuo3Z4=
github.com/mitchellh/cli v1.0.0/go.mod h1:hNIlj7HEI86fIcpObd7a0FcrxTWetlwJDGcceTlRvqc=
github.com/mitchellh/go-homedir v1.0.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
@ -612,6 +660,7 @@ github.com/moby/sys/mountinfo v0.1.3/go.mod h1:w2t2Avltqx8vE7gX5l+QiBKxODu2TX0+S
github.com/moby/sys/mountinfo v0.4.0 h1:1KInV3Huv18akCu58V7lzNlt+jFmqlu1EaErnEHE/VM=
github.com/moby/sys/mountinfo v0.4.0/go.mod h1:rEr8tzG/lsIZHBtN/JjGG+LMYx9eXgW2JI+6q0qou+A=
github.com/moby/sys/symlink v0.1.0/go.mod h1:GGDODQmbFOjFsXvfLVn3+ZRxkch54RkSiGqsZeMYowQ=
github.com/moby/term v0.0.0-20200312100748-672ec06f55cd/go.mod h1:DdlQx2hp0Ss5/fLikoLlEeIYiATotOjgB//nb973jeo=
github.com/moby/term v0.0.0-20200915141129-7f0af18e79f2 h1:SPoLlS9qUUnXcIY4pvA4CTwYjk0Is5f4UPEkeESr53k=
github.com/moby/term v0.0.0-20200915141129-7f0af18e79f2/go.mod h1:TjQg8pa4iejrUrjiz0MCtMV38jdMNW4doKSiBrEvCQQ=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@ -656,23 +705,30 @@ github.com/op/go-logging v0.0.0-20160315200505-970db520ece7/go.mod h1:HzydrMdWEr
github.com/opencontainers/go-digest v0.0.0-20170106003457-a6d0ee40d420/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
github.com/opencontainers/go-digest v0.0.0-20180430190053-c9281466c8b2/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
github.com/opencontainers/go-digest v1.0.0-rc1/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
github.com/opencontainers/go-digest v1.0.0-rc1.0.20180430190053-c9281466c8b2/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/opencontainers/image-spec v1.0.0/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zMzWCbyJoFRP3s7yZA0=
github.com/opencontainers/image-spec v1.0.1 h1:JMemWkRwHx4Zj+fVxWoMCFm/8sYGGrUVojFA6h/TRcI=
github.com/opencontainers/image-spec v1.0.1/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zMzWCbyJoFRP3s7yZA0=
github.com/opencontainers/runc v0.0.0-20190115041553-12f6a991201f/go.mod h1:qT5XzbpPznkRYVz/mWwUaVBUv2rmF59PVA73FjuZG0U=
github.com/opencontainers/runc v0.1.1/go.mod h1:qT5XzbpPznkRYVz/mWwUaVBUv2rmF59PVA73FjuZG0U=
github.com/opencontainers/runc v1.0.0-rc10/go.mod h1:qT5XzbpPznkRYVz/mWwUaVBUv2rmF59PVA73FjuZG0U=
github.com/opencontainers/runc v1.0.0-rc8.0.20190926000215-3e425f80a8c9/go.mod h1:qT5XzbpPznkRYVz/mWwUaVBUv2rmF59PVA73FjuZG0U=
github.com/opencontainers/runc v1.0.0-rc9/go.mod h1:qT5XzbpPznkRYVz/mWwUaVBUv2rmF59PVA73FjuZG0U=
github.com/opencontainers/runc v1.0.0-rc92 h1:+IczUKCRzDzFDnw99O/PAqrcBBCoRp9xN3cB1SYSNS4=
github.com/opencontainers/runc v1.0.0-rc92/go.mod h1:X1zlU4p7wOlX4+WRCz+hvlRv8phdL7UqbYD+vQwNMmE=
github.com/opencontainers/runtime-spec v0.1.2-0.20190507144316-5b71a03e2700/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
github.com/opencontainers/runtime-spec v1.0.1/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
github.com/opencontainers/runtime-spec v1.0.2-0.20190207185410-29686dbc5559/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
github.com/opencontainers/runtime-spec v1.0.2/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
github.com/opencontainers/runtime-spec v1.0.3-0.20200728170252-4d89ac9fbff6 h1:NhsM2gc769rVWDqJvapK37r+7+CBXI8xHhnfnt8uQsg=
github.com/opencontainers/runtime-spec v1.0.3-0.20200728170252-4d89ac9fbff6/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
github.com/opencontainers/runtime-tools v0.0.0-20181011054405-1d69bd0f9c39/go.mod h1:r3f7wjNzSs2extwzU3Y+6pKfobzPh+kKFJ3ofN+3nfs=
github.com/opencontainers/selinux v1.6.0 h1:+bIAS/Za3q5FTwWym4fTB0vObnfCf3G/NC7K6Jx62mY=
github.com/opencontainers/selinux v1.6.0/go.mod h1:VVGKuOLlE7v4PJyT6h7mNWvq1rzqiriPsEqVhc+svHE=
github.com/opencontainers/selinux v1.8.0 h1:+77ba4ar4jsCbL1GLbFL8fFM57w6suPfSS9PDLDY7KM=
github.com/opencontainers/selinux v1.8.0/go.mod h1:RScLhm78qiWa2gbVCcGkC7tCGdgk3ogry1nUQF8Evvo=
github.com/opentracing-contrib/go-stdlib v1.0.0 h1:TBS7YuVotp8myLon4Pv7BtCBzOTo1DeZCld0Z63mW2w=
github.com/opentracing-contrib/go-stdlib v1.0.0/go.mod h1:qtI1ogk+2JhVPIXVc6q+NHziSmy2W5GbdQZFUHADCBU=
github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
@ -700,21 +756,30 @@ github.com/prometheus/client_golang v0.0.0-20180209125602-c332b6f63c06/go.mod h1
github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5FsnadC4Ky3P0J6CfImo=
github.com/prometheus/client_golang v1.1.0/go.mod h1:I1FGZT9+L76gKKOs5djB6ezCbFQP1xR9D75/vuwEF3g=
github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
github.com/prometheus/client_model v0.0.0-20171117100541-99fa1f4be8e5/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/common v0.0.0-20180110214958-89604d197083/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/common v0.6.0/go.mod h1:eBmuwkDJBwy6iBfxCBob6t6dR6ENT/y+J+Zk0j9GMYc=
github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
github.com/prometheus/procfs v0.0.0-20180125133057-cb4147076ac7/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.0.0-20190522114515-bc1a522cf7b1/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.0.3/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
github.com/prometheus/procfs v0.0.5 h1:3+auTFlqw+ZaQYJARz6ArODtkaIwtvBTx3N2NehQlL8=
github.com/prometheus/procfs v0.0.5/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
github.com/prometheus/procfs v0.1.3 h1:F0+tqvhOksq22sc6iCHF5WGlWjdwj92p0udFh1VFBS8=
github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
github.com/quasilyte/go-consistent v0.0.0-20190521200055-c6f3937de18c/go.mod h1:5STLWrekHfjyYwxBRVRXNOSewLJ3PWfDJd1VyTS21fI=
github.com/quasilyte/go-ruleguard v0.1.2-0.20200318202121-b00d7a75d3d8/go.mod h1:CGFX09Ci3pq9QZdj86B+VGIdNj4VyCo2iPOGS9esB/k=
@ -803,6 +868,7 @@ github.com/subosito/gotenv v1.2.0/go.mod h1:N0PQaV/YGNqwC0u51sEeR/aUtSLEXKX9iv69
github.com/syndtr/gocapability v0.0.0-20170704070218-db04d3cc01c8/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
github.com/syndtr/gocapability v0.0.0-20180916011248-d98352740cb2 h1:b6uOv7YOFK0TYG7HtkIgExQo+2RdLuwRft63jn2HWj8=
github.com/syndtr/gocapability v0.0.0-20180916011248-d98352740cb2/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
github.com/tchap/go-patricia v2.2.6+incompatible/go.mod h1:bmLyhP68RS6kStMGxByiQ23RP/odRBOTVjwp2cDyi6I=
github.com/tdakkota/asciicheck v0.0.0-20200416190851-d7f85be797a2/go.mod h1:yHp0ai0Z9gUljN3o0xMhYJnH/IcvkdTBOX2fmJ93JEM=
github.com/tdakkota/asciicheck v0.0.0-20200416200610-e657995f937b/go.mod h1:yHp0ai0Z9gUljN3o0xMhYJnH/IcvkdTBOX2fmJ93JEM=
github.com/tetafro/godot v0.3.7/go.mod h1:/7NLHhv08H1+8DNj0MElpAACw1ajsCuf3TKNQxA5S+0=
@ -855,6 +921,8 @@ github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df/go.mod h1:JP3t17
github.com/vmware/govmomi v0.20.3/go.mod h1:URlwyTFZX72RmxtxuaFL2Uj3fD1JTvZdx59bHWk6aFU=
github.com/willf/bitset v1.1.11-0.20200630133818-d5bec3311243 h1:R43TdZy32XXSXjJn7M/HhALJ9imq6ztLnChfYJpVDnM=
github.com/willf/bitset v1.1.11-0.20200630133818-d5bec3311243/go.mod h1:RjeCKbqT1RxIR/KWY6phxZiaY1IyutSBfGjNPySAYV4=
github.com/willf/bitset v1.1.11 h1:N7Z7E9UvjW+sGsEl7k/SJrvY2reP1A07MrGuCjIOjRE=
github.com/willf/bitset v1.1.11/go.mod h1:83CECat5yLh5zVOf4P1ErAgKA5UDvKtgyUABdr3+MjI=
github.com/xanzy/go-gitlab v0.31.0/go.mod h1:sPLojNBn68fMUWSxIJtdVVIP8uSBYqesTfDUseX11Ug=
github.com/xanzy/go-gitlab v0.32.0/go.mod h1:sPLojNBn68fMUWSxIJtdVVIP8uSBYqesTfDUseX11Ug=
github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f/go.mod h1:N2zxlSyiKSe5eX1tZViRH5QA0qijqEDrYZiPEAiq3wU=
@ -874,6 +942,7 @@ go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
go.etcd.io/bbolt v1.3.5 h1:XAzx9gjCb0Rxj7EoqcClPD1d5ZBxZJk0jbuoPHenBt0=
go.etcd.io/bbolt v1.3.5/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
go.etcd.io/etcd v0.0.0-20191023171146-3cf2f69b5738/go.mod h1:dnLIgRNXwCJa5e+c6mIZCrds/GIG4ncV9HhK5PX7jPg=
go.etcd.io/etcd v0.5.0-alpha.5.0.20200819165624-17cef6e3e9d5/go.mod h1:skWido08r9w6Lq/w70DO5XYIKMu4QFu1+4VsqLQuJy8=
go.opencensus.io v0.15.0/go.mod h1:UffZAU+4sDEINUGP/B7UfBBkq4fqLu9zXAX7ke6CHW0=
go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
@ -897,6 +966,7 @@ golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734/go.mod h1:yigFU9vqHzYiE8U
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@ -992,6 +1062,8 @@ golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJ
golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208 h1:qwRHBd0NqMbJxfbotnDhm2ByMI1Shq4Y6oRJo21SGJA=
golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a h1:DcqTD9SDLc+1P/r1EmRBwnVsrOwW+kk2vWf9n+1sGhs=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20170830134202-bb24a47a89ea/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@ -1010,6 +1082,7 @@ golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190514135907-3a4b5fb9f71f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190522044717-8097e1b27ff5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190602015325-4c4f7f33c9ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190606203320-7fc4e5ec1444/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@ -1018,6 +1091,8 @@ golang.org/x/sys v0.0.0-20190620070143-6f217b454f45/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190812073006-9eafafc0a87e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@ -1031,6 +1106,7 @@ golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191210023423-ac6580df4449/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200113162924-86b910548bc1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200120151820-655fe14d7479/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@ -1045,6 +1121,7 @@ golang.org/x/sys v0.0.0-20200331124033-c3d80250170d/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20200501052902-10377860bb8e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200511232937-7e40ca221e25/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200622214017-ed371f2e16b4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200728102440-3e129f6d46b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200831180312-196b9ba8737a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@ -1052,8 +1129,9 @@ golang.org/x/sys v0.0.0-20200909081042-eff7692f9009/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20200916030750-2334cc1a136f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200917073148-efd3b9a0ff20/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200922070232-aee5d888a860/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201013081832-0aaa2718063a h1:bhXnJ7fn2SiL+C8iOWPfNBJKDTjUByftpPW7b9CX94U=
golang.org/x/sys v0.0.0-20201013081832-0aaa2718063a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201202213521-69691e467435 h1:25AvDqqB9PrNqj1FLf2/70I4W0L19qqoaFq3gjNwbKk=
golang.org/x/sys v0.0.0-20201202213521-69691e467435/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/term v0.0.0-20201117132131-f5c789dd3221 h1:/ZHdbVpdR/jk3g30/d4yUL0JU9kksj8+F/bnQUVLGDM=
golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
golang.org/x/text v0.0.0-20160726164857-2910a502d2bf/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@ -1176,6 +1254,7 @@ google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ij
google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.24.0/go.mod h1:XDChyiUovWa60DnaeDeZmSW86xtLtjtZbwvSiRnRtcA=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
@ -1183,6 +1262,8 @@ google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
google.golang.org/grpc v1.29.1 h1:EC2SB8S04d2r73uptxphDSUG+kTKVgjRPF+N3xpxRB4=
google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
google.golang.org/grpc v1.30.0 h1:M5a8xTlYTxwMn5ZFkwhRabsygDY5G8TYLyQDBxJNAxE=
google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
@ -1204,6 +1285,7 @@ gopkg.in/ini.v1 v1.56.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
gopkg.in/square/go-jose.v2 v2.2.2/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
gopkg.in/square/go-jose.v2 v2.3.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/warnings.v0 v0.1.1/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
@ -1228,16 +1310,19 @@ honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt
honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
honnef.co/go/tools v0.0.1-2020.1.5/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
k8s.io/api v0.17.4/go.mod h1:5qxx6vjmwUVG2nHQTKGlLts8Tbok8PzHl4vHtVFuZCA=
k8s.io/api v0.19.0/go.mod h1:I1K45XlvTrDjmj5LoM5LuP/KYrhWbjUKT/SoPG0qTjw=
k8s.io/api v0.19.4/go.mod h1:SbtJ2aHCItirzdJ36YslycFNzWADYH3tgOhvBEFtZAk=
k8s.io/apimachinery v0.17.4/go.mod h1:gxLnyZcGNdZTCLnq3fgzyg2A5BVCHTNDFrw8AmuJ+0g=
k8s.io/apimachinery v0.19.0/go.mod h1:DnPGDnARWFvYa3pMHgSxtbZb7gpzzAZ1pTfaUNDVlmA=
k8s.io/apimachinery v0.19.4/go.mod h1:DnPGDnARWFvYa3pMHgSxtbZb7gpzzAZ1pTfaUNDVlmA=
k8s.io/apiserver v0.17.4/go.mod h1:5ZDQ6Xr5MNBxyi3iUZXS84QOhZl+W7Oq2us/29c0j9I=
k8s.io/apiserver v0.19.4/go.mod h1:X8WRHCR1UGZDd7HpV0QDc1h/6VbbpAeAGyxSh8yzZXw=
k8s.io/client-go v0.17.4/go.mod h1:ouF6o5pz3is8qU0/qYL2RnoxOPqgfuidYLowytyLJmc=
k8s.io/client-go v0.19.0/go.mod h1:H9E/VT95blcFQnlyShFgnFT9ZnJOAceiUHM3MlRC+mU=
k8s.io/client-go v0.19.4/go.mod h1:ZrEy7+wj9PjH5VMBCuu/BDlvtUAku0oVFk4MmnW9mWA=
k8s.io/cloud-provider v0.17.4/go.mod h1:XEjKDzfD+b9MTLXQFlDGkk6Ho8SGMpaU8Uugx/KNK9U=
k8s.io/code-generator v0.17.2/go.mod h1:DVmfPQgxQENqDIzVR2ddLXMH34qeszkKSdH/N+s+38s=
k8s.io/component-base v0.17.4/go.mod h1:5BRqHMbbQPm2kKu35v3G+CpVq4K0RJKC7TRioF0I9lE=
k8s.io/component-base v0.19.4/go.mod h1:ZzuSLlsWhajIDEkKF73j64Gz/5o0AgON08FgRbEPI70=
k8s.io/cri-api v0.17.3/go.mod h1:X1sbHmuXhwaHs9xxYffLqJogVsnI+f6cPRcgPel7ywM=
k8s.io/cri-api v0.19.4/go.mod h1:UN/iU9Ua0iYdDREBXNE9vqCJ7MIh/FW3VIL0d8pw7Fw=
k8s.io/csi-translation-lib v0.17.4/go.mod h1:CsxmjwxEI0tTNMzffIAcgR9lX4wOh6AKHdxQrT7L0oo=
k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
k8s.io/gengo v0.0.0-20190822140433-26a664648505/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
@ -1266,6 +1351,7 @@ pack.ag/amqp v0.11.2/go.mod h1:4/cbmt4EJXSKlG6LCfWHoqmN0uFdy5i/+YFz+fTfhV4=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.9/go.mod h1:dzAXnQbTRyDlZPJX2SUPEqvnB+j7AJjtlox7PEwigU0=
sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
sigs.k8s.io/structured-merge-diff v1.0.1-0.20191108220359-b1b620dd3f06/go.mod h1:/ULNhyfzRopfcjskuui0cTITekDduZ7ycKN3oUT9R18=
sigs.k8s.io/structured-merge-diff/v4 v4.0.1/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=

View File

@ -0,0 +1,4 @@
// +build !windows
// This file only exists to allow go get on non-Windows platforms.
package backuptar

View File

@ -1,34 +1,16 @@
// +build windows
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package archive
package backuptar
import (
"archive/tar"
"fmt"
"strconv"
"strings"
"time"
"archive/tar"
)
// Forked from https://github.com/golang/go/blob/master/src/archive/tar/strconv.go
// as archive/tar doesn't support CreationTime, but does handle PAX time parsing,
// and there's no need to re-invent the wheel.
// Functions copied from https://github.com/golang/go/blob/master/src/archive/tar/strconv.go
// as we need to manage the LIBARCHIVE.creationtime PAXRecord manually.
// Idea taken from containerd which did the same thing.
// parsePAXTime takes a string of the form %d.%d as described in the PAX
// specification. Note that this implementation allows for negative timestamps,
@ -62,7 +44,25 @@ func parsePAXTime(s string) (time.Time, error) {
}
nsecs, _ := strconv.ParseInt(sn, 10, 64) // Must succeed
if len(ss) > 0 && ss[0] == '-' {
return time.Unix(secs, -nsecs), nil // Negative correction
return time.Unix(secs, -1*nsecs), nil // Negative correction
}
return time.Unix(secs, nsecs), nil
}
// formatPAXTime converts ts into a time of the form %d.%d as described in the
// PAX specification. This function is capable of negative timestamps.
func formatPAXTime(ts time.Time) (s string) {
secs, nsecs := ts.Unix(), ts.Nanosecond()
if nsecs == 0 {
return strconv.FormatInt(secs, 10)
}
// If seconds is negative, then perform correction.
sign := ""
if secs < 0 {
sign = "-" // Remember sign
secs = -(secs + 1) // Add a second to secs
nsecs = -(nsecs - 1e9) // Take that second away from nsecs
}
return strings.TrimRight(fmt.Sprintf("%s%d.%09d", sign, secs, nsecs), "0")
}

451
vendor/github.com/Microsoft/go-winio/backuptar/tar.go generated vendored Normal file
View File

@ -0,0 +1,451 @@
// +build windows
package backuptar
import (
"archive/tar"
"encoding/base64"
"errors"
"fmt"
"io"
"io/ioutil"
"path/filepath"
"strconv"
"strings"
"syscall"
"time"
"github.com/Microsoft/go-winio"
)
const (
c_ISUID = 04000 // Set uid
c_ISGID = 02000 // Set gid
c_ISVTX = 01000 // Save text (sticky bit)
c_ISDIR = 040000 // Directory
c_ISFIFO = 010000 // FIFO
c_ISREG = 0100000 // Regular file
c_ISLNK = 0120000 // Symbolic link
c_ISBLK = 060000 // Block special file
c_ISCHR = 020000 // Character special file
c_ISSOCK = 0140000 // Socket
)
const (
hdrFileAttributes = "MSWINDOWS.fileattr"
hdrSecurityDescriptor = "MSWINDOWS.sd"
hdrRawSecurityDescriptor = "MSWINDOWS.rawsd"
hdrMountPoint = "MSWINDOWS.mountpoint"
hdrEaPrefix = "MSWINDOWS.xattr."
hdrCreationTime = "LIBARCHIVE.creationtime"
)
func writeZeroes(w io.Writer, count int64) error {
buf := make([]byte, 8192)
c := len(buf)
for i := int64(0); i < count; i += int64(c) {
if int64(c) > count-i {
c = int(count - i)
}
_, err := w.Write(buf[:c])
if err != nil {
return err
}
}
return nil
}
func copySparse(t *tar.Writer, br *winio.BackupStreamReader) error {
curOffset := int64(0)
for {
bhdr, err := br.Next()
if err == io.EOF {
err = io.ErrUnexpectedEOF
}
if err != nil {
return err
}
if bhdr.Id != winio.BackupSparseBlock {
return fmt.Errorf("unexpected stream %d", bhdr.Id)
}
// archive/tar does not support writing sparse files
// so just write zeroes to catch up to the current offset.
err = writeZeroes(t, bhdr.Offset-curOffset)
if bhdr.Size == 0 {
break
}
n, err := io.Copy(t, br)
if err != nil {
return err
}
curOffset = bhdr.Offset + n
}
return nil
}
// BasicInfoHeader creates a tar header from basic file information.
func BasicInfoHeader(name string, size int64, fileInfo *winio.FileBasicInfo) *tar.Header {
hdr := &tar.Header{
Format: tar.FormatPAX,
Name: filepath.ToSlash(name),
Size: size,
Typeflag: tar.TypeReg,
ModTime: time.Unix(0, fileInfo.LastWriteTime.Nanoseconds()),
ChangeTime: time.Unix(0, fileInfo.ChangeTime.Nanoseconds()),
AccessTime: time.Unix(0, fileInfo.LastAccessTime.Nanoseconds()),
PAXRecords: make(map[string]string),
}
hdr.PAXRecords[hdrFileAttributes] = fmt.Sprintf("%d", fileInfo.FileAttributes)
hdr.PAXRecords[hdrCreationTime] = formatPAXTime(time.Unix(0, fileInfo.CreationTime.Nanoseconds()))
if (fileInfo.FileAttributes & syscall.FILE_ATTRIBUTE_DIRECTORY) != 0 {
hdr.Mode |= c_ISDIR
hdr.Size = 0
hdr.Typeflag = tar.TypeDir
}
return hdr
}
// WriteTarFileFromBackupStream writes a file to a tar writer using data from a Win32 backup stream.
//
// This encodes Win32 metadata as tar pax vendor extensions starting with MSWINDOWS.
//
// The additional Win32 metadata is:
//
// MSWINDOWS.fileattr: The Win32 file attributes, as a decimal value
//
// MSWINDOWS.rawsd: The Win32 security descriptor, in raw binary format
//
// MSWINDOWS.mountpoint: If present, this is a mount point and not a symlink, even though the type is '2' (symlink)
func WriteTarFileFromBackupStream(t *tar.Writer, r io.Reader, name string, size int64, fileInfo *winio.FileBasicInfo) error {
name = filepath.ToSlash(name)
hdr := BasicInfoHeader(name, size, fileInfo)
// If r can be seeked, then this function is two-pass: pass 1 collects the
// tar header data, and pass 2 copies the data stream. If r cannot be
// seeked, then some header data (in particular EAs) will be silently lost.
var (
restartPos int64
err error
)
sr, readTwice := r.(io.Seeker)
if readTwice {
if restartPos, err = sr.Seek(0, io.SeekCurrent); err != nil {
readTwice = false
}
}
br := winio.NewBackupStreamReader(r)
var dataHdr *winio.BackupHeader
for dataHdr == nil {
bhdr, err := br.Next()
if err == io.EOF {
break
}
if err != nil {
return err
}
switch bhdr.Id {
case winio.BackupData:
hdr.Mode |= c_ISREG
if !readTwice {
dataHdr = bhdr
}
case winio.BackupSecurity:
sd, err := ioutil.ReadAll(br)
if err != nil {
return err
}
hdr.PAXRecords[hdrRawSecurityDescriptor] = base64.StdEncoding.EncodeToString(sd)
case winio.BackupReparseData:
hdr.Mode |= c_ISLNK
hdr.Typeflag = tar.TypeSymlink
reparseBuffer, err := ioutil.ReadAll(br)
rp, err := winio.DecodeReparsePoint(reparseBuffer)
if err != nil {
return err
}
if rp.IsMountPoint {
hdr.PAXRecords[hdrMountPoint] = "1"
}
hdr.Linkname = rp.Target
case winio.BackupEaData:
eab, err := ioutil.ReadAll(br)
if err != nil {
return err
}
eas, err := winio.DecodeExtendedAttributes(eab)
if err != nil {
return err
}
for _, ea := range eas {
// Use base64 encoding for the binary value. Note that there
// is no way to encode the EA's flags, since their use doesn't
// make any sense for persisted EAs.
hdr.PAXRecords[hdrEaPrefix+ea.Name] = base64.StdEncoding.EncodeToString(ea.Value)
}
case winio.BackupAlternateData, winio.BackupLink, winio.BackupPropertyData, winio.BackupObjectId, winio.BackupTxfsData:
// ignore these streams
default:
return fmt.Errorf("%s: unknown stream ID %d", name, bhdr.Id)
}
}
err = t.WriteHeader(hdr)
if err != nil {
return err
}
if readTwice {
// Get back to the data stream.
if _, err = sr.Seek(restartPos, io.SeekStart); err != nil {
return err
}
for dataHdr == nil {
bhdr, err := br.Next()
if err == io.EOF {
break
}
if err != nil {
return err
}
if bhdr.Id == winio.BackupData {
dataHdr = bhdr
}
}
}
if dataHdr != nil {
// A data stream was found. Copy the data.
if (dataHdr.Attributes & winio.StreamSparseAttributes) == 0 {
if size != dataHdr.Size {
return fmt.Errorf("%s: mismatch between file size %d and header size %d", name, size, dataHdr.Size)
}
_, err = io.Copy(t, br)
if err != nil {
return err
}
} else {
err = copySparse(t, br)
if err != nil {
return err
}
}
}
// Look for streams after the data stream. The only ones we handle are alternate data streams.
// Other streams may have metadata that could be serialized, but the tar header has already
// been written. In practice, this means that we don't get EA or TXF metadata.
for {
bhdr, err := br.Next()
if err == io.EOF {
break
}
if err != nil {
return err
}
switch bhdr.Id {
case winio.BackupAlternateData:
altName := bhdr.Name
if strings.HasSuffix(altName, ":$DATA") {
altName = altName[:len(altName)-len(":$DATA")]
}
if (bhdr.Attributes & winio.StreamSparseAttributes) == 0 {
hdr = &tar.Header{
Format: hdr.Format,
Name: name + altName,
Mode: hdr.Mode,
Typeflag: tar.TypeReg,
Size: bhdr.Size,
ModTime: hdr.ModTime,
AccessTime: hdr.AccessTime,
ChangeTime: hdr.ChangeTime,
}
err = t.WriteHeader(hdr)
if err != nil {
return err
}
_, err = io.Copy(t, br)
if err != nil {
return err
}
} else {
// Unsupported for now, since the size of the alternate stream is not present
// in the backup stream until after the data has been read.
return errors.New("tar of sparse alternate data streams is unsupported")
}
case winio.BackupEaData, winio.BackupLink, winio.BackupPropertyData, winio.BackupObjectId, winio.BackupTxfsData:
// ignore these streams
default:
return fmt.Errorf("%s: unknown stream ID %d after data", name, bhdr.Id)
}
}
return nil
}
// FileInfoFromHeader retrieves basic Win32 file information from a tar header, using the additional metadata written by
// WriteTarFileFromBackupStream.
func FileInfoFromHeader(hdr *tar.Header) (name string, size int64, fileInfo *winio.FileBasicInfo, err error) {
name = hdr.Name
if hdr.Typeflag == tar.TypeReg || hdr.Typeflag == tar.TypeRegA {
size = hdr.Size
}
fileInfo = &winio.FileBasicInfo{
LastAccessTime: syscall.NsecToFiletime(hdr.AccessTime.UnixNano()),
LastWriteTime: syscall.NsecToFiletime(hdr.ModTime.UnixNano()),
ChangeTime: syscall.NsecToFiletime(hdr.ChangeTime.UnixNano()),
// Default to ModTime, we'll pull hdrCreationTime below if present
CreationTime: syscall.NsecToFiletime(hdr.ModTime.UnixNano()),
}
if attrStr, ok := hdr.PAXRecords[hdrFileAttributes]; ok {
attr, err := strconv.ParseUint(attrStr, 10, 32)
if err != nil {
return "", 0, nil, err
}
fileInfo.FileAttributes = uint32(attr)
} else {
if hdr.Typeflag == tar.TypeDir {
fileInfo.FileAttributes |= syscall.FILE_ATTRIBUTE_DIRECTORY
}
}
if creationTimeStr, ok := hdr.PAXRecords[hdrCreationTime]; ok {
creationTime, err := parsePAXTime(creationTimeStr)
if err != nil {
return "", 0, nil, err
}
fileInfo.CreationTime = syscall.NsecToFiletime(creationTime.UnixNano())
}
return
}
// WriteBackupStreamFromTarFile writes a Win32 backup stream from the current tar file. Since this function may process multiple
// tar file entries in order to collect all the alternate data streams for the file, it returns the next
// tar file that was not processed, or io.EOF is there are no more.
func WriteBackupStreamFromTarFile(w io.Writer, t *tar.Reader, hdr *tar.Header) (*tar.Header, error) {
bw := winio.NewBackupStreamWriter(w)
var sd []byte
var err error
// Maintaining old SDDL-based behavior for backward compatibility. All new tar headers written
// by this library will have raw binary for the security descriptor.
if sddl, ok := hdr.PAXRecords[hdrSecurityDescriptor]; ok {
sd, err = winio.SddlToSecurityDescriptor(sddl)
if err != nil {
return nil, err
}
}
if sdraw, ok := hdr.PAXRecords[hdrRawSecurityDescriptor]; ok {
sd, err = base64.StdEncoding.DecodeString(sdraw)
if err != nil {
return nil, err
}
}
if len(sd) != 0 {
bhdr := winio.BackupHeader{
Id: winio.BackupSecurity,
Size: int64(len(sd)),
}
err := bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = bw.Write(sd)
if err != nil {
return nil, err
}
}
var eas []winio.ExtendedAttribute
for k, v := range hdr.PAXRecords {
if !strings.HasPrefix(k, hdrEaPrefix) {
continue
}
data, err := base64.StdEncoding.DecodeString(v)
if err != nil {
return nil, err
}
eas = append(eas, winio.ExtendedAttribute{
Name: k[len(hdrEaPrefix):],
Value: data,
})
}
if len(eas) != 0 {
eadata, err := winio.EncodeExtendedAttributes(eas)
if err != nil {
return nil, err
}
bhdr := winio.BackupHeader{
Id: winio.BackupEaData,
Size: int64(len(eadata)),
}
err = bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = bw.Write(eadata)
if err != nil {
return nil, err
}
}
if hdr.Typeflag == tar.TypeSymlink {
_, isMountPoint := hdr.PAXRecords[hdrMountPoint]
rp := winio.ReparsePoint{
Target: filepath.FromSlash(hdr.Linkname),
IsMountPoint: isMountPoint,
}
reparse := winio.EncodeReparsePoint(&rp)
bhdr := winio.BackupHeader{
Id: winio.BackupReparseData,
Size: int64(len(reparse)),
}
err := bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = bw.Write(reparse)
if err != nil {
return nil, err
}
}
if hdr.Typeflag == tar.TypeReg || hdr.Typeflag == tar.TypeRegA {
bhdr := winio.BackupHeader{
Id: winio.BackupData,
Size: hdr.Size,
}
err := bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = io.Copy(bw, t)
if err != nil {
return nil, err
}
}
// Copy all the alternate data streams and return the next non-ADS header.
for {
ahdr, err := t.Next()
if err != nil {
return nil, err
}
if ahdr.Typeflag != tar.TypeReg || !strings.HasPrefix(ahdr.Name, hdr.Name+":") {
return ahdr, nil
}
bhdr := winio.BackupHeader{
Id: winio.BackupAlternateData,
Size: ahdr.Size,
Name: ahdr.Name[len(hdr.Name):] + ":$DATA",
}
err = bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = io.Copy(bw, t)
if err != nil {
return nil, err
}
}
}

View File

@ -33,6 +33,7 @@ type Metrics struct {
Rdma *RdmaStat `protobuf:"bytes,6,opt,name=rdma,proto3" json:"rdma,omitempty"`
Network []*NetworkStat `protobuf:"bytes,7,rep,name=network,proto3" json:"network,omitempty"`
CgroupStats *CgroupStats `protobuf:"bytes,8,opt,name=cgroup_stats,json=cgroupStats,proto3" json:"cgroup_stats,omitempty"`
MemoryOomControl *MemoryOomControl `protobuf:"bytes,9,opt,name=memory_oom_control,json=MemoryOomControl,proto3" json:"memory_oom_control,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
@ -392,6 +393,47 @@ func (m *MemoryEntry) XXX_DiscardUnknown() {
var xxx_messageInfo_MemoryEntry proto.InternalMessageInfo
type MemoryOomControl struct {
OomKillDisable uint64 `protobuf:"varint,1,opt,name=oom_kill_disable,proto3" json:oom_kill_disable",omitempty"`
UnderOom uint64 `protobuf:"varint,2,opt,name=under_oom,proto3" json:"under_oom,omitempty"`
OomKill uint64 `protobuf:"varint,3,opt,name=oom_kill,proto3" json:"oom_kill,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *MemoryOomControl) Reset() { *m = MemoryOomControl{} }
func (*MemoryOomControl) ProtoMessage() {}
func (*MemoryOomControl) Descriptor() ([]byte, []int) {
return fileDescriptor_a17b2d87c332bfaa, []int{8}
}
func (m *MemoryOomControl) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
}
func (m *MemoryOomControl) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
if deterministic {
return xxx_messageInfo_MemoryOomControl.Marshal(b, m, deterministic)
} else {
b = b[:cap(b)]
n, err := m.MarshalTo(b)
if err != nil {
return nil, err
}
return b[:n], nil
}
}
func (m *MemoryOomControl) XXX_Merge(src proto.Message) {
xxx_messageInfo_MemoryOomControl.Merge(m, src)
}
func (m *MemoryOomControl) XXX_Size() int {
return m.Size()
}
func (m *MemoryOomControl) XXX_DiscardUnknown() {
xxx_messageInfo_MemoryOomControl.DiscardUnknown(m)
}
var xxx_messageInfo_MemoryOomControl proto.InternalMessageInfo
type BlkIOStat struct {
IoServiceBytesRecursive []*BlkIOEntry `protobuf:"bytes,1,rep,name=io_service_bytes_recursive,json=ioServiceBytesRecursive,proto3" json:"io_service_bytes_recursive,omitempty"`
IoServicedRecursive []*BlkIOEntry `protobuf:"bytes,2,rep,name=io_serviced_recursive,json=ioServicedRecursive,proto3" json:"io_serviced_recursive,omitempty"`
@ -409,7 +451,7 @@ type BlkIOStat struct {
func (m *BlkIOStat) Reset() { *m = BlkIOStat{} }
func (*BlkIOStat) ProtoMessage() {}
func (*BlkIOStat) Descriptor() ([]byte, []int) {
return fileDescriptor_a17b2d87c332bfaa, []int{8}
return fileDescriptor_a17b2d87c332bfaa, []int{9}
}
func (m *BlkIOStat) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -452,7 +494,7 @@ type BlkIOEntry struct {
func (m *BlkIOEntry) Reset() { *m = BlkIOEntry{} }
func (*BlkIOEntry) ProtoMessage() {}
func (*BlkIOEntry) Descriptor() ([]byte, []int) {
return fileDescriptor_a17b2d87c332bfaa, []int{9}
return fileDescriptor_a17b2d87c332bfaa, []int{10}
}
func (m *BlkIOEntry) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -492,7 +534,7 @@ type RdmaStat struct {
func (m *RdmaStat) Reset() { *m = RdmaStat{} }
func (*RdmaStat) ProtoMessage() {}
func (*RdmaStat) Descriptor() ([]byte, []int) {
return fileDescriptor_a17b2d87c332bfaa, []int{10}
return fileDescriptor_a17b2d87c332bfaa, []int{11}
}
func (m *RdmaStat) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -533,7 +575,7 @@ type RdmaEntry struct {
func (m *RdmaEntry) Reset() { *m = RdmaEntry{} }
func (*RdmaEntry) ProtoMessage() {}
func (*RdmaEntry) Descriptor() ([]byte, []int) {
return fileDescriptor_a17b2d87c332bfaa, []int{11}
return fileDescriptor_a17b2d87c332bfaa, []int{12}
}
func (m *RdmaEntry) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -580,7 +622,7 @@ type NetworkStat struct {
func (m *NetworkStat) Reset() { *m = NetworkStat{} }
func (*NetworkStat) ProtoMessage() {}
func (*NetworkStat) Descriptor() ([]byte, []int) {
return fileDescriptor_a17b2d87c332bfaa, []int{12}
return fileDescriptor_a17b2d87c332bfaa, []int{13}
}
func (m *NetworkStat) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -629,7 +671,7 @@ type CgroupStats struct {
func (m *CgroupStats) Reset() { *m = CgroupStats{} }
func (*CgroupStats) ProtoMessage() {}
func (*CgroupStats) Descriptor() ([]byte, []int) {
return fileDescriptor_a17b2d87c332bfaa, []int{13}
return fileDescriptor_a17b2d87c332bfaa, []int{14}
}
func (m *CgroupStats) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -667,6 +709,7 @@ func init() {
proto.RegisterType((*Throttle)(nil), "io.containerd.cgroups.v1.Throttle")
proto.RegisterType((*MemoryStat)(nil), "io.containerd.cgroups.v1.MemoryStat")
proto.RegisterType((*MemoryEntry)(nil), "io.containerd.cgroups.v1.MemoryEntry")
proto.RegisterType((*MemoryOomControl)(nil), "io.containerd.cgroups.v1.MemoryOomControl")
proto.RegisterType((*BlkIOStat)(nil), "io.containerd.cgroups.v1.BlkIOStat")
proto.RegisterType((*BlkIOEntry)(nil), "io.containerd.cgroups.v1.BlkIOEntry")
proto.RegisterType((*RdmaStat)(nil), "io.containerd.cgroups.v1.RdmaStat")
@ -887,6 +930,16 @@ func (m *Metrics) MarshalTo(dAtA []byte) (int, error) {
}
i += n6
}
if m.MemoryOomControl != nil {
dAtA[i] = 0x4a
i++
i = encodeVarintMetrics(dAtA, i, uint64(m.MemoryOomControl.Size()))
n7, err := m.MemoryOomControl.MarshalTo(dAtA[i:])
if err != nil {
return 0, err
}
i += n7
}
if m.XXX_unrecognized != nil {
i += copy(dAtA[i:], m.XXX_unrecognized)
}
@ -1400,6 +1453,39 @@ func (m *MemoryEntry) MarshalTo(dAtA []byte) (int, error) {
return i, nil
}
func (m *MemoryOomControl) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
n, err := m.MarshalTo(dAtA)
if err != nil {
return nil, err
}
return dAtA[:n], nil
}
func (m *MemoryOomControl) MarshalTo(dAtA []byte) (int, error) {
var i int
_ = i
var l int
_ = l
if m.OomKillDisable != 0 {
dAtA[i] = 0x8
i++
i = encodeVarintMetrics(dAtA, i, uint64(m.OomKillDisable))
}
if m.UnderOom != 0 {
dAtA[i] = 0x10
i++
i = encodeVarintMetrics(dAtA, i, uint64(m.UnderOom))
}
if m.OomKill != 0 {
dAtA[i] = 0x18
i++
i = encodeVarintMetrics(dAtA, i, uint64(m.OomKill))
}
return i, nil
}
func (m *BlkIOStat) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
@ -1811,6 +1897,10 @@ func (m *Metrics) Size() (n int) {
l = m.CgroupStats.Size()
n += 1 + l + sovMetrics(uint64(l))
}
if m.MemoryOomControl != nil {
l = m.MemoryOomControl.Size()
n += 1 + l + sovMetrics(uint64(l))
}
if m.XXX_unrecognized != nil {
n += len(m.XXX_unrecognized)
}
@ -2077,6 +2167,27 @@ func (m *MemoryEntry) Size() (n int) {
return n
}
func (m *MemoryOomControl) Size() (n int) {
if m == nil {
return 0
}
var l int
_ = l
if m.OomKillDisable != 0 {
n += 1 + sovMetrics(uint64(m.OomKillDisable))
}
if m.UnderOom != 0 {
n += 1 + sovMetrics(uint64(m.UnderOom))
}
if m.OomKill != 0 {
n += 1 + sovMetrics(uint64(m.OomKill))
}
if m.XXX_unrecognized != nil {
n += len(m.XXX_unrecognized)
}
return n
}
func (m *BlkIOStat) Size() (n int) {
if m == nil {
return 0
@ -2301,6 +2412,7 @@ func (this *Metrics) String() string {
`Pids:` + strings.Replace(fmt.Sprintf("%v", this.Pids), "PidsStat", "PidsStat", 1) + `,`,
`CPU:` + strings.Replace(fmt.Sprintf("%v", this.CPU), "CPUStat", "CPUStat", 1) + `,`,
`Memory:` + strings.Replace(fmt.Sprintf("%v", this.Memory), "MemoryStat", "MemoryStat", 1) + `,`,
`MemoryOomControl:` + strings.Replace(fmt.Sprintf("%v", this.MemoryOomControl), "MemoryOomControl", "MemoryOomControl", 1) + `,`,
`Blkio:` + strings.Replace(fmt.Sprintf("%v", this.Blkio), "BlkIOStat", "BlkIOStat", 1) + `,`,
`Rdma:` + strings.Replace(fmt.Sprintf("%v", this.Rdma), "RdmaStat", "RdmaStat", 1) + `,`,
`Network:` + strings.Replace(fmt.Sprintf("%v", this.Network), "NetworkStat", "NetworkStat", 1) + `,`,
@ -2435,6 +2547,19 @@ func (this *MemoryEntry) String() string {
}, "")
return s
}
func (this *MemoryOomControl) String() string {
if this == nil {
return "nil"
}
s := strings.Join([]string{`&MemoryOomControl{`,
`OomKillDisable:` + fmt.Sprintf("%v", this.OomKillDisable) + `,`,
`UnderOom:` + fmt.Sprintf("%v", this.UnderOom) + `,`,
`OomKill:` + fmt.Sprintf("%v", this.OomKill) + `,`,
`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
`}`,
}, "")
return s
}
func (this *BlkIOStat) String() string {
if this == nil {
return "nil"
@ -2848,6 +2973,41 @@ func (m *Metrics) Unmarshal(dAtA []byte) error {
return err
}
iNdEx = postIndex
case 9:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field MemoryOomControl", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowMetrics
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= int(b&0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthMetrics
}
postIndex := iNdEx + msglen
if postIndex < 0 {
return ErrInvalidLengthMetrics
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
if m.MemoryOomControl == nil {
m.MemoryOomControl = &MemoryOomControl{}
}
if err := m.MemoryOomControl.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
}
default:
iNdEx = preIndex
skippy, err := skipMetrics(dAtA[iNdEx:])
@ -4468,6 +4628,117 @@ func (m *MemoryEntry) Unmarshal(dAtA []byte) error {
}
return nil
}
func (m *MemoryOomControl) Unmarshal(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0
for iNdEx < l {
preIndex := iNdEx
var wire uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowMetrics
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
fieldNum := int32(wire >> 3)
wireType := int(wire & 0x7)
if wireType == 4 {
return fmt.Errorf("proto: MemoryOomControl: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: MemoryOomControl: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field OomKillDisable", wireType)
}
m.OomKillDisable = 0
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowMetrics
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
m.OomKillDisable |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
case 2:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field UnderOom", wireType)
}
m.UnderOom = 0
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowMetrics
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
m.UnderOom |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
case 3:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field OomKill", wireType)
}
m.OomKill = 0
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowMetrics
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
m.OomKill |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
default:
iNdEx = preIndex
skippy, err := skipMetrics(dAtA[iNdEx:])
if err != nil {
return err
}
if skippy < 0 {
return ErrInvalidLengthMetrics
}
if (iNdEx + skippy) < 0 {
return ErrInvalidLengthMetrics
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}
func (m *BlkIOStat) Unmarshal(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0

View File

@ -71,6 +71,14 @@ file {
type_name: ".io.containerd.cgroups.v1.CgroupStats"
json_name: "cgroupStats"
}
field {
name: "memory_oom_control"
number: 9
label: LABEL_OPTIONAL
type: TYPE_MESSAGE
type_name: ".io.containerd.cgroups.v1.MemoryOomControl"
json_name: "memoryOomControl"
}
}
message_type {
name: "HugetlbStat"
@ -502,6 +510,30 @@ file {
json_name: "failcnt"
}
}
message_type {
name: "MemoryOomControl"
field {
name: "oom_kill_disable"
number: 1
label: LABEL_OPTIONAL
type: TYPE_UINT64
json_name: "oom_kill_disable"
}
field {
name: "under_oom"
number: 2
label: LABEL_OPTIONAL
type: TYPE_UINT64
json_name: "under_oom"
}
field {
name: "oom_kill"
number: 3
label: LABEL_OPTIONAL
type: TYPE_UINT64
json_name: "oom_kill"
}
}
message_type {
name: "BlkIOStat"
field {

View File

@ -13,6 +13,7 @@ message Metrics {
RdmaStat rdma = 6;
repeated NetworkStat network = 7;
CgroupStats cgroup_stats = 8;
MemoryOomControl memory_oom_control = 9;
}
message HugetlbStat {
@ -94,6 +95,12 @@ message MemoryEntry {
uint64 failcnt = 4;
}
message MemoryOomControl {
uint64 oom_kill_disable = 1;
uint64 under_oom = 2;
uint64 oom_kill = 3;
}
message BlkIOStat {
repeated BlkIOEntry io_service_bytes_recursive = 1;
repeated BlkIOEntry io_serviced_recursive = 2;

View File

@ -40,6 +40,8 @@ including the Balena project listed below.
**_D2iQ Konvoy_** - D2iQ Inc [Konvoy](https://d2iq.com/products/konvoy) product uses containerd as the container runtime for its Kubernetes distribution.
**_Inclavare Containers_** - [Inclavare Containers](https://github.com/alibaba/inclavare-containers) is an innovation of container runtime with the novel approach for launching protected containers in hardware-assisted Trusted Execution Environment (TEE) technology, aka Enclave, which can prevent the untrusted entity, such as Cloud Service Provider (CSP), from accessing the sensitive and confidential assets in use.
**_Other Projects_** - While the above list provides a cross-section of well known uses of containerd, the simplicity and clear API layer for containerd has inspired many smaller projects around providing simple container management platforms. Several examples of building higher layer functionality on top of the containerd base have come from various containerd community participants:
- Michael Crosby's [boss](https://github.com/crosbymichael/boss) project,
- Evan Hazlett's [stellar](https://github.com/ehazlett/stellar) project,

View File

@ -107,8 +107,6 @@ make generate
> * `no_cri`: A build tag disables building Kubernetes [CRI](http://blog.kubernetes.io/2016/12/container-runtime-interface-cri-in-kubernetes.html) support into containerd.
> See [here](https://github.com/containerd/cri-containerd#build-tags) for build tags of CRI plugin.
> * `no_devmapper`: A build tag disables building the device mapper snapshot driver.
> * `apparmor`: Enables apparmor support in the cri plugin
> * `selinux`: Enables selinux support in the cri plugin
>
> For example, adding `BUILDTAGS=no_btrfs` to your environment before calling the **binaries**
> Makefile target will disable the btrfs driver within the containerd Go build.

View File

@ -77,8 +77,7 @@ MANPAGES=ctr.8 containerd.8 containerd-config.8 containerd-config.toml.5
ifdef BUILDTAGS
GO_BUILDTAGS = ${BUILDTAGS}
endif
# Build tags apparmor and selinux are needed by CRI plugin.
GO_BUILDTAGS ?= apparmor selinux
GO_BUILDTAGS ?=
GO_BUILDTAGS += ${DEBUG_TAGS}
GO_TAGS=$(if $(GO_BUILDTAGS),-tags "$(GO_BUILDTAGS)",)
GO_LDFLAGS=-ldflags '-X $(PKG)/version.Version=$(VERSION) -X $(PKG)/version.Revision=$(REVISION) -X $(PKG)/version.Package=$(PACKAGE) $(EXTRA_LDFLAGS)'
@ -377,7 +376,7 @@ root-coverage: ## generate coverage profiles for unit tests that require root
vendor:
@echo "$(WHALE) $@"
@vndr
@go mod vendor
help: ## this help
@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST) | sort

View File

@ -44,7 +44,7 @@ If you are interested in trying out containerd see our example at [Getting Start
There are nightly builds available for download [here](https://github.com/containerd/containerd/actions?query=workflow%3ANightly).
Binaries are generated from `master` branch every night for `Linux` and `Windows`.
Please be aware: nightly builds might have critical bugs, it's not recommended for use in prodution and no support provided.
Please be aware: nightly builds might have critical bugs, it's not recommended for use in production and no support provided.
## Runtime Requirements
@ -140,7 +140,7 @@ redis, err := client.NewContainer(context, "redis-master", containerd.WithNewSpe
### Root Filesystems
containerd allows you to use overlay or snapshot filesystems with your containers. It comes with builtin support for overlayfs and btrfs.
containerd allows you to use overlay or snapshot filesystems with your containers. It comes with built in support for overlayfs and btrfs.
```go
// pull an image and unpack it into the configured snapshotter
@ -171,7 +171,7 @@ Taking a container object and turning it into a runnable process on a system is
task, err := redis.NewTask(context, cio.NewCreator(cio.WithStdio))
defer task.Delete(context)
// the task is now running and has a pid that can be use to setup networking
// the task is now running and has a pid that can be used to setup networking
// or other runtime settings outside of containerd
pid := task.Pid()
@ -184,7 +184,7 @@ status, err := task.Wait(context)
### Checkpoint and Restore
If you have [criu](https://criu.org/Main_Page) installed on your machine you can checkpoint and restore containers and their tasks. This allow you to clone and/or live migrate containers to other machines.
If you have [criu](https://criu.org/Main_Page) installed on your machine you can checkpoint and restore containers and their tasks. This allows you to clone and/or live migrate containers to other machines.
```go
// checkpoint the task then push it to a registry

View File

@ -134,7 +134,7 @@ To cherry pick a straightforward commit from master, simply use the cherry pick
process:
1. Pick the branch to which you want backported, usually in the format
`release/<minor>.<major>`. The following will create a branch you can
`release/<major>.<minor>`. The following will create a branch you can
use to open a PR:
```console
@ -155,7 +155,12 @@ process:
Make sure to replace `stevvooe` with whatever fork you are using to open
the PR. When you open the PR, make sure to switch `master` with whatever
release branch you are targeting with the fix.
release branch you are targeting with the fix. Make sure the PR title has
`[<release branch>]` prefixed. e.g.:
```
[release/1.4] Fix foo in bar
```
If there is no existing fix in master, you should first fix the bug in master,
or ask us a maintainer or contributor to do it via an issue. Once that PR is

View File

@ -1,6 +1,6 @@
containerd is built with OCI support and with support for advanced features provided by [runc](https://github.com/opencontainers/runc).
We depend on a specific `runc` version when dealing with advanced features. You should have a specific runc build for development. The current supported runc commit is described in [`vendor.conf`](vendor.conf). Please refer to the line that starts with `github.com/opencontainers/runc`.
We depend on a specific `runc` version when dealing with advanced features. You should have a specific runc build for development. The current supported runc commit is described in [`go.mod`](go.mod). Please refer to the line that starts with `github.com/opencontainers/runc`.
For more information on how to clone and build runc see the runc Building [documentation](https://github.com/opencontainers/runc#building).

View File

@ -17,7 +17,7 @@
# Vagrantfile for cgroup2 and SELinux
Vagrant.configure("2") do |config|
config.vm.box = "fedora/32-cloud-base"
config.vm.box = "fedora/33-cloud-base"
memory = 4096
cpus = 2
config.vm.provider :virtualbox do |v|
@ -85,7 +85,6 @@ Vagrant.configure("2") do |config|
curl -fsSL "https://dl.google.com/go/go${GO_VERSION}.linux-amd64.tar.gz" | tar Cxz /usr/local
cat >> /etc/environment <<EOF
PATH=/usr/local/go/bin:$PATH
GO111MODULE=off
EOF
source /etc/environment
cat >> /etc/profile.d/sh.local <<EOF

View File

@ -9,6 +9,7 @@ import (
types "github.com/containerd/containerd/api/types"
task "github.com/containerd/containerd/api/types/task"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
types1 "github.com/gogo/protobuf/types"
github_com_opencontainers_go_digest "github.com/opencontainers/go-digest"
@ -934,11 +935,12 @@ func (m *CheckpointTaskResponse) XXX_DiscardUnknown() {
var xxx_messageInfo_CheckpointTaskResponse proto.InternalMessageInfo
type UpdateTaskRequest struct {
ContainerID string `protobuf:"bytes,1,opt,name=container_id,json=containerId,proto3" json:"container_id,omitempty"`
Resources *types1.Any `protobuf:"bytes,2,opt,name=resources,proto3" json:"resources,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
ContainerID string `protobuf:"bytes,1,opt,name=container_id,json=containerId,proto3" json:"container_id,omitempty"`
Resources *types1.Any `protobuf:"bytes,2,opt,name=resources,proto3" json:"resources,omitempty"`
Annotations map[string]string `protobuf:"bytes,3,rep,name=annotations,proto3" json:"annotations,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *UpdateTaskRequest) Reset() { *m = UpdateTaskRequest{} }
@ -1155,6 +1157,7 @@ func init() {
proto.RegisterType((*CheckpointTaskRequest)(nil), "containerd.services.tasks.v1.CheckpointTaskRequest")
proto.RegisterType((*CheckpointTaskResponse)(nil), "containerd.services.tasks.v1.CheckpointTaskResponse")
proto.RegisterType((*UpdateTaskRequest)(nil), "containerd.services.tasks.v1.UpdateTaskRequest")
proto.RegisterMapType((map[string]string)(nil), "containerd.services.tasks.v1.UpdateTaskRequest.AnnotationsEntry")
proto.RegisterType((*MetricsRequest)(nil), "containerd.services.tasks.v1.MetricsRequest")
proto.RegisterType((*MetricsResponse)(nil), "containerd.services.tasks.v1.MetricsResponse")
proto.RegisterType((*WaitRequest)(nil), "containerd.services.tasks.v1.WaitRequest")
@ -1166,90 +1169,93 @@ func init() {
}
var fileDescriptor_310e7127b8a26f14 = []byte{
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}
// Reference imports to suppress errors if they are not otherwise used.
@ -2943,6 +2949,25 @@ func (m *UpdateTaskRequest) MarshalToSizedBuffer(dAtA []byte) (int, error) {
i -= len(m.XXX_unrecognized)
copy(dAtA[i:], m.XXX_unrecognized)
}
if len(m.Annotations) > 0 {
for k := range m.Annotations {
v := m.Annotations[k]
baseI := i
i -= len(v)
copy(dAtA[i:], v)
i = encodeVarintTasks(dAtA, i, uint64(len(v)))
i--
dAtA[i] = 0x12
i -= len(k)
copy(dAtA[i:], k)
i = encodeVarintTasks(dAtA, i, uint64(len(k)))
i--
dAtA[i] = 0xa
i = encodeVarintTasks(dAtA, i, uint64(baseI-i))
i--
dAtA[i] = 0x1a
}
}
if m.Resources != nil {
{
size, err := m.Resources.MarshalToSizedBuffer(dAtA[:i])
@ -3611,6 +3636,14 @@ func (m *UpdateTaskRequest) Size() (n int) {
l = m.Resources.Size()
n += 1 + l + sovTasks(uint64(l))
}
if len(m.Annotations) > 0 {
for k, v := range m.Annotations {
_ = k
_ = v
mapEntrySize := 1 + len(k) + sovTasks(uint64(len(k))) + 1 + len(v) + sovTasks(uint64(len(v)))
n += mapEntrySize + 1 + sovTasks(uint64(mapEntrySize))
}
}
if m.XXX_unrecognized != nil {
n += len(m.XXX_unrecognized)
}
@ -3991,9 +4024,20 @@ func (this *UpdateTaskRequest) String() string {
if this == nil {
return "nil"
}
keysForAnnotations := make([]string, 0, len(this.Annotations))
for k, _ := range this.Annotations {
keysForAnnotations = append(keysForAnnotations, k)
}
github_com_gogo_protobuf_sortkeys.Strings(keysForAnnotations)
mapStringForAnnotations := "map[string]string{"
for _, k := range keysForAnnotations {
mapStringForAnnotations += fmt.Sprintf("%v: %v,", k, this.Annotations[k])
}
mapStringForAnnotations += "}"
s := strings.Join([]string{`&UpdateTaskRequest{`,
`ContainerID:` + fmt.Sprintf("%v", this.ContainerID) + `,`,
`Resources:` + strings.Replace(fmt.Sprintf("%v", this.Resources), "Any", "types1.Any", 1) + `,`,
`Annotations:` + mapStringForAnnotations + `,`,
`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
`}`,
}, "")
@ -6865,6 +6909,133 @@ func (m *UpdateTaskRequest) Unmarshal(dAtA []byte) error {
return err
}
iNdEx = postIndex
case 3:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Annotations", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowTasks
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= int(b&0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthTasks
}
postIndex := iNdEx + msglen
if postIndex < 0 {
return ErrInvalidLengthTasks
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
if m.Annotations == nil {
m.Annotations = make(map[string]string)
}
var mapkey string
var mapvalue string
for iNdEx < postIndex {
entryPreIndex := iNdEx
var wire uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowTasks
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
fieldNum := int32(wire >> 3)
if fieldNum == 1 {
var stringLenmapkey uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowTasks
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLenmapkey |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLenmapkey := int(stringLenmapkey)
if intStringLenmapkey < 0 {
return ErrInvalidLengthTasks
}
postStringIndexmapkey := iNdEx + intStringLenmapkey
if postStringIndexmapkey < 0 {
return ErrInvalidLengthTasks
}
if postStringIndexmapkey > l {
return io.ErrUnexpectedEOF
}
mapkey = string(dAtA[iNdEx:postStringIndexmapkey])
iNdEx = postStringIndexmapkey
} else if fieldNum == 2 {
var stringLenmapvalue uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowTasks
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLenmapvalue |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLenmapvalue := int(stringLenmapvalue)
if intStringLenmapvalue < 0 {
return ErrInvalidLengthTasks
}
postStringIndexmapvalue := iNdEx + intStringLenmapvalue
if postStringIndexmapvalue < 0 {
return ErrInvalidLengthTasks
}
if postStringIndexmapvalue > l {
return io.ErrUnexpectedEOF
}
mapvalue = string(dAtA[iNdEx:postStringIndexmapvalue])
iNdEx = postStringIndexmapvalue
} else {
iNdEx = entryPreIndex
skippy, err := skipTasks(dAtA[iNdEx:])
if err != nil {
return err
}
if skippy < 0 {
return ErrInvalidLengthTasks
}
if (iNdEx + skippy) > postIndex {
return io.ErrUnexpectedEOF
}
iNdEx += skippy
}
}
m.Annotations[mapkey] = mapvalue
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipTasks(dAtA[iNdEx:])

View File

@ -188,6 +188,7 @@ message CheckpointTaskResponse {
message UpdateTaskRequest {
string container_id = 1;
google.protobuf.Any resources = 2;
map<string, string> annotations = 3;
}
message MetricsRequest {

View File

@ -29,6 +29,7 @@ import (
"sync"
"github.com/containerd/containerd/log"
"github.com/klauspost/compress/zstd"
)
type (
@ -41,6 +42,8 @@ const (
Uncompressed Compression = iota
// Gzip is gzip compression algorithm.
Gzip
// Zstd is zstd compression algorithm.
Zstd
)
const disablePigzEnv = "CONTAINERD_DISABLE_PIGZ"
@ -126,6 +129,7 @@ func (r *bufferedReader) Peek(n int) ([]byte, error) {
func DetectCompression(source []byte) Compression {
for compression, m := range map[Compression][]byte{
Gzip: {0x1F, 0x8B, 0x08},
Zstd: {0x28, 0xb5, 0x2f, 0xfd},
} {
if len(source) < len(m) {
// Len too short
@ -174,6 +178,19 @@ func DecompressStream(archive io.Reader) (DecompressReadCloser, error) {
return gzReader.Close()
},
}, nil
case Zstd:
zstdReader, err := zstd.NewReader(buf)
if err != nil {
return nil, err
}
return &readCloserWrapper{
Reader: zstdReader,
compression: compression,
closer: func() error {
zstdReader.Close()
return nil
},
}, nil
default:
return nil, fmt.Errorf("unsupported compression format %s", (&compression).Extension())
@ -187,6 +204,8 @@ func CompressStream(dest io.Writer, compression Compression) (io.WriteCloser, er
return &writeCloserWrapper{dest, nil}, nil
case Gzip:
return gzip.NewWriter(dest), nil
case Zstd:
return zstd.NewWriter(dest)
default:
return nil, fmt.Errorf("unsupported compression format %s", (&compression).Extension())
}
@ -197,6 +216,8 @@ func (compression *Compression) Extension() string {
switch *compression {
case Gzip:
return "gz"
case Zstd:
return "zst"
}
return ""
}

View File

@ -114,16 +114,18 @@ func Apply(ctx context.Context, root string, r io.Reader, opts ...ApplyOpt) (int
options.applyFunc = applyNaive
}
return options.applyFunc(ctx, root, tar.NewReader(r), options)
return options.applyFunc(ctx, root, r, options)
}
// applyNaive applies a tar stream of an OCI style diff tar to a directory
// applying each file as either a whole file or whiteout.
// See https://github.com/opencontainers/image-spec/blob/master/layer.md#applying-changesets
func applyNaive(ctx context.Context, root string, tr *tar.Reader, options ApplyOptions) (size int64, err error) {
func applyNaive(ctx context.Context, root string, r io.Reader, options ApplyOptions) (size int64, err error) {
var (
dirs []*tar.Header
tr = tar.NewReader(r)
// Used for handling opaque directory markers which
// may occur out of order
unpackedPaths = make(map[string]struct{})

View File

@ -0,0 +1,36 @@
// +build freebsd
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package archive
import "golang.org/x/sys/unix"
// mknod wraps unix.Mknod. FreeBSD's unix.Mknod signature is different from
// other Unix and Unix-like operating systems.
func mknod(path string, mode uint32, dev uint64) error {
return unix.Mknod(path, mode, dev)
}
// lsetxattrCreate wraps unix.Lsetxattr with FreeBSD-specific flags and errors
func lsetxattrCreate(link string, attr string, data []byte) error {
err := unix.Lsetxattr(link, attr, data, 0)
if err == unix.ENOTSUP|| err == unix.EEXIST {
return nil
}
return err
}

View File

@ -0,0 +1,36 @@
// +build !windows,!freebsd
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package archive
import "golang.org/x/sys/unix"
// mknod wraps Unix.Mknod and casts dev to int
func mknod(path string, mode uint32, dev uint64) error {
return unix.Mknod(path, mode, int(dev))
}
// lsetxattrCreate wraps unix.Lsetxattr, passes the unix.XATTR_CREATE flag on
// supported operating systems,and ignores appropriate errors
func lsetxattrCreate(link string, attr string, data []byte) error {
err := unix.Lsetxattr(link, attr, data, unix.XATTR_CREATE)
if err == unix.ENOTSUP || err == unix.ENODATA || err == unix.EEXIST {
return nil
}
return err
}

View File

@ -19,6 +19,7 @@ package archive
import (
"archive/tar"
"context"
"io"
)
// ApplyOptions provides additional options for an Apply operation
@ -27,7 +28,7 @@ type ApplyOptions struct {
ConvertWhiteout ConvertWhiteout // Convert whiteout files
Parents []string // Parent directories to handle inherited attributes without CoW
applyFunc func(context.Context, string, *tar.Reader, ApplyOptions) (int64, error)
applyFunc func(context.Context, string, io.Reader, ApplyOptions) (int64, error)
}
// ApplyOpt allows setting mutable archive apply properties on creation

View File

@ -108,7 +108,7 @@ func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error {
mode |= unix.S_IFIFO
}
return unix.Mknod(path, mode, int(unix.Mkdev(uint32(hdr.Devmajor), uint32(hdr.Devminor))))
return mknod(path, mode, unix.Mkdev(uint32(hdr.Devmajor), uint32(hdr.Devminor)))
}
func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error {
@ -196,10 +196,7 @@ func copyUpXAttrs(dst, src string) error {
}
return errors.Wrapf(err, "failed to get xattr %q on %s", xattr, src)
}
if err := unix.Lsetxattr(dst, xattr, data, unix.XATTR_CREATE); err != nil {
if err == unix.ENOTSUP || err == unix.ENODATA || err == unix.EEXIST {
continue
}
if err := lsetxattrCreate(dst, xattr, data); err != nil {
return errors.Wrapf(err, "failed to set xattr %q on %s", xattr, dst)
}
}

View File

@ -22,38 +22,20 @@ import (
"archive/tar"
"bufio"
"context"
"encoding/base64"
"fmt"
"io"
"os"
"path"
"path/filepath"
"strconv"
"strings"
"syscall"
"github.com/Microsoft/go-winio"
"github.com/Microsoft/go-winio/backuptar"
"github.com/Microsoft/hcsshim"
"github.com/containerd/containerd/sys"
"github.com/pkg/errors"
)
const (
// MSWINDOWS pax vendor extensions
hdrMSWindowsPrefix = "MSWINDOWS."
hdrFileAttributes = hdrMSWindowsPrefix + "fileattr"
hdrSecurityDescriptor = hdrMSWindowsPrefix + "sd"
hdrRawSecurityDescriptor = hdrMSWindowsPrefix + "rawsd"
hdrMountPoint = hdrMSWindowsPrefix + "mountpoint"
hdrEaPrefix = hdrMSWindowsPrefix + "xattr."
// LIBARCHIVE pax vendor extensions
hdrLibArchivePrefix = "LIBARCHIVE."
hdrCreateTime = hdrLibArchivePrefix + "creationtime"
)
var (
// mutatedFiles is a list of files that are mutated by the import process
// and must be backed up and restored.
@ -149,10 +131,21 @@ func setxattr(path, key, value string) error {
return errors.New("xattrs not supported on Windows")
}
func copyDirInfo(fi os.FileInfo, path string) error {
if err := os.Chmod(path, fi.Mode()); err != nil {
return errors.Wrapf(err, "failed to chmod %s", path)
}
return nil
}
func copyUpXAttrs(dst, src string) error {
return nil
}
// applyWindowsLayer applies a tar stream of an OCI style diff tar of a Windows
// layer using the hcsshim layer writer and backup streams.
// See https://github.com/opencontainers/image-spec/blob/master/layer.md#applying-changesets
func applyWindowsLayer(ctx context.Context, root string, tr *tar.Reader, options ApplyOptions) (size int64, err error) {
func applyWindowsLayer(ctx context.Context, root string, r io.Reader, options ApplyOptions) (size int64, err error) {
home, id := filepath.Split(root)
info := hcsshim.DriverInfo{
HomeDir: home,
@ -172,6 +165,7 @@ func applyWindowsLayer(ctx context.Context, root string, tr *tar.Reader, options
}
}()
tr := tar.NewReader(r)
buf := bufio.NewWriter(nil)
hdr, nextErr := tr.Next()
// Iterate through the files in the archive.
@ -208,7 +202,7 @@ func applyWindowsLayer(ctx context.Context, root string, tr *tar.Reader, options
}
hdr, nextErr = tr.Next()
} else {
name, fileSize, fileInfo, err := fileInfoFromHeader(hdr)
name, fileSize, fileInfo, err := backuptar.FileInfoFromHeader(hdr)
if err != nil {
return 0, err
}
@ -223,42 +217,6 @@ func applyWindowsLayer(ctx context.Context, root string, tr *tar.Reader, options
return
}
// fileInfoFromHeader retrieves basic Win32 file information from a tar header, using the additional metadata written by
// WriteTarFileFromBackupStream.
func fileInfoFromHeader(hdr *tar.Header) (name string, size int64, fileInfo *winio.FileBasicInfo, err error) {
name = hdr.Name
if hdr.Typeflag == tar.TypeReg || hdr.Typeflag == tar.TypeRegA {
size = hdr.Size
}
fileInfo = &winio.FileBasicInfo{
LastAccessTime: syscall.NsecToFiletime(hdr.AccessTime.UnixNano()),
LastWriteTime: syscall.NsecToFiletime(hdr.ModTime.UnixNano()),
ChangeTime: syscall.NsecToFiletime(hdr.ChangeTime.UnixNano()),
// Default CreationTime to ModTime, updated below if MSWINDOWS.createtime exists
CreationTime: syscall.NsecToFiletime(hdr.ModTime.UnixNano()),
}
if attrStr, ok := hdr.PAXRecords[hdrFileAttributes]; ok {
attr, err := strconv.ParseUint(attrStr, 10, 32)
if err != nil {
return "", 0, nil, err
}
fileInfo.FileAttributes = uint32(attr)
} else {
if hdr.Typeflag == tar.TypeDir {
fileInfo.FileAttributes |= syscall.FILE_ATTRIBUTE_DIRECTORY
}
}
if createStr, ok := hdr.PAXRecords[hdrCreateTime]; ok {
createTime, err := parsePAXTime(createStr)
if err != nil {
return "", 0, nil, err
}
fileInfo.CreationTime = syscall.NsecToFiletime(createTime.UnixNano())
}
return
}
// tarToBackupStreamWithMutatedFiles reads data from a tar stream and
// writes it to a backup stream, and also saves any files that will be mutated
// by the import layer process to a backup location.
@ -299,146 +257,5 @@ func tarToBackupStreamWithMutatedFiles(buf *bufio.Writer, w io.Writer, t *tar.Re
}
}()
return writeBackupStreamFromTarFile(buf, t, hdr)
}
// writeBackupStreamFromTarFile writes a Win32 backup stream from the current tar file. Since this function may process multiple
// tar file entries in order to collect all the alternate data streams for the file, it returns the next
// tar file that was not processed, or io.EOF is there are no more.
func writeBackupStreamFromTarFile(w io.Writer, t *tar.Reader, hdr *tar.Header) (*tar.Header, error) {
bw := winio.NewBackupStreamWriter(w)
var sd []byte
var err error
// Maintaining old SDDL-based behavior for backward compatibility. All new tar headers written
// by this library will have raw binary for the security descriptor.
if sddl, ok := hdr.PAXRecords[hdrSecurityDescriptor]; ok {
sd, err = winio.SddlToSecurityDescriptor(sddl)
if err != nil {
return nil, err
}
}
if sdraw, ok := hdr.PAXRecords[hdrRawSecurityDescriptor]; ok {
sd, err = base64.StdEncoding.DecodeString(sdraw)
if err != nil {
return nil, err
}
}
if len(sd) != 0 {
bhdr := winio.BackupHeader{
Id: winio.BackupSecurity,
Size: int64(len(sd)),
}
err := bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = bw.Write(sd)
if err != nil {
return nil, err
}
}
var eas []winio.ExtendedAttribute
for k, v := range hdr.PAXRecords {
if !strings.HasPrefix(k, hdrEaPrefix) {
continue
}
data, err := base64.StdEncoding.DecodeString(v)
if err != nil {
return nil, err
}
eas = append(eas, winio.ExtendedAttribute{
Name: k[len(hdrEaPrefix):],
Value: data,
})
}
if len(eas) != 0 {
eadata, err := winio.EncodeExtendedAttributes(eas)
if err != nil {
return nil, err
}
bhdr := winio.BackupHeader{
Id: winio.BackupEaData,
Size: int64(len(eadata)),
}
err = bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = bw.Write(eadata)
if err != nil {
return nil, err
}
}
if hdr.Typeflag == tar.TypeSymlink {
_, isMountPoint := hdr.PAXRecords[hdrMountPoint]
rp := winio.ReparsePoint{
Target: filepath.FromSlash(hdr.Linkname),
IsMountPoint: isMountPoint,
}
reparse := winio.EncodeReparsePoint(&rp)
bhdr := winio.BackupHeader{
Id: winio.BackupReparseData,
Size: int64(len(reparse)),
}
err := bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = bw.Write(reparse)
if err != nil {
return nil, err
}
}
buf := bufPool.Get().(*[]byte)
defer bufPool.Put(buf)
if hdr.Typeflag == tar.TypeReg || hdr.Typeflag == tar.TypeRegA {
bhdr := winio.BackupHeader{
Id: winio.BackupData,
Size: hdr.Size,
}
err := bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = io.CopyBuffer(bw, t, *buf)
if err != nil {
return nil, err
}
}
// Copy all the alternate data streams and return the next non-ADS header.
for {
ahdr, err := t.Next()
if err != nil {
return nil, err
}
if ahdr.Typeflag != tar.TypeReg || !strings.HasPrefix(ahdr.Name, hdr.Name+":") {
return ahdr, nil
}
bhdr := winio.BackupHeader{
Id: winio.BackupAlternateData,
Size: ahdr.Size,
Name: ahdr.Name[len(hdr.Name):] + ":$DATA",
}
err = bw.WriteHeader(&bhdr)
if err != nil {
return nil, err
}
_, err = io.CopyBuffer(bw, t, *buf)
if err != nil {
return nil, err
}
}
}
func copyDirInfo(fi os.FileInfo, path string) error {
if err := os.Chmod(path, fi.Mode()); err != nil {
return errors.Wrapf(err, "failed to chmod %s", path)
}
return nil
}
func copyUpXAttrs(dst, src string) error {
return nil
return backuptar.WriteBackupStreamFromTarFile(buf, t, hdr)
}

View File

@ -85,7 +85,9 @@ func WithImageName(n string) NewContainerOpts {
}
}
// WithContainerLabels adds the provided labels to the container
// WithContainerLabels sets the provided labels to the container.
// The existing labels are cleared.
// Use WithAdditionalContainerLabels to preserve the existing labels.
func WithContainerLabels(labels map[string]string) NewContainerOpts {
return func(_ context.Context, _ *Client, c *containers.Container) error {
c.Labels = labels
@ -93,6 +95,21 @@ func WithContainerLabels(labels map[string]string) NewContainerOpts {
}
}
// WithAdditionalContainerLabels adds the provided labels to the container
// The existing labels are preserved as long as they do not conflict with the added labels.
func WithAdditionalContainerLabels(labels map[string]string) NewContainerOpts {
return func(_ context.Context, _ *Client, c *containers.Container) error {
if c.Labels == nil {
c.Labels = labels
return nil
}
for k, v := range labels {
c.Labels[k] = v
}
return nil
}
}
// WithImageStopSignal sets a well-known containerd label (StopSignalLabel)
// on the container for storing the stop signal specified in the OCI image
// config

View File

@ -18,6 +18,7 @@ package local
import (
"sync"
"time"
"github.com/containerd/containerd/errdefs"
"github.com/pkg/errors"
@ -25,9 +26,13 @@ import (
// Handles locking references
type lock struct {
since time.Time
}
var (
// locks lets us lock in process
locks = map[string]struct{}{}
locks = make(map[string]*lock)
locksMu sync.Mutex
)
@ -35,11 +40,11 @@ func tryLock(ref string) error {
locksMu.Lock()
defer locksMu.Unlock()
if _, ok := locks[ref]; ok {
return errors.Wrapf(errdefs.ErrUnavailable, "ref %s locked", ref)
if v, ok := locks[ref]; ok {
return errors.Wrapf(errdefs.ErrUnavailable, "ref %s locked since %s", ref, v.since)
}
locks[ref] = struct{}{}
locks[ref] = &lock{time.Now()}
return nil
}

76
vendor/github.com/containerd/containerd/go.mod generated vendored Normal file
View File

@ -0,0 +1,76 @@
module github.com/containerd/containerd
go 1.15
require (
github.com/BurntSushi/toml v0.3.1
github.com/Microsoft/go-winio v0.4.15
github.com/Microsoft/hcsshim v0.8.10
github.com/Microsoft/hcsshim/test v0.0.0-20201119174602-966bebae11b4
github.com/containerd/aufs v0.0.0-20200908144142-dab0cbea06f4
github.com/containerd/btrfs v0.0.0-20201111183144-404b9149801e
github.com/containerd/cgroups v0.0.0-20200824123100-0b889c03f102
github.com/containerd/console v1.0.1
github.com/containerd/continuity v0.0.0-20201208142359-180525291bb7
github.com/containerd/fifo v0.0.0-20201026212402-0724c46b320c
github.com/containerd/go-cni v1.0.1
github.com/containerd/go-runc v0.0.0-20200220073739-7016d3ce2328
github.com/containerd/imgcrypt v1.0.1
github.com/containerd/nri v0.0.0-20201007170849-eb1350a75164
github.com/containerd/ttrpc v1.0.2
github.com/containerd/typeurl v1.0.1
github.com/containerd/zfs v0.0.0-20200918131355-0a33824f23a2
github.com/containernetworking/plugins v0.8.6
github.com/coreos/go-systemd/v22 v22.1.0
github.com/davecgh/go-spew v1.1.1
github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c
github.com/docker/go-metrics v0.0.1
github.com/docker/go-units v0.4.0
github.com/emicklei/go-restful v2.9.5+incompatible
github.com/fsnotify/fsnotify v1.4.9
github.com/gogo/googleapis v1.4.0
github.com/gogo/protobuf v1.3.1
github.com/golang/protobuf v1.4.3
github.com/google/go-cmp v0.5.1
github.com/google/uuid v1.1.1
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
github.com/hashicorp/go-multierror v1.0.0
github.com/imdario/mergo v0.3.10
github.com/klauspost/compress v1.11.3
github.com/moby/sys/symlink v0.1.0
github.com/opencontainers/go-digest v1.0.0
github.com/opencontainers/image-spec v1.0.1
github.com/opencontainers/runc v1.0.0-rc92
github.com/opencontainers/runtime-spec v1.0.3-0.20200728170252-4d89ac9fbff6
github.com/opencontainers/selinux v1.8.0
github.com/pkg/errors v0.9.1
github.com/prometheus/client_golang v1.7.1
github.com/sirupsen/logrus v1.7.0
github.com/stretchr/testify v1.4.0
github.com/syndtr/gocapability v0.0.0-20180916011248-d98352740cb2
github.com/tchap/go-patricia v2.2.6+incompatible
github.com/urfave/cli v1.22.2
go.etcd.io/bbolt v1.3.5
golang.org/x/net v0.0.0-20200707034311-ab3426394381
golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208
golang.org/x/sys v0.0.0-20201202213521-69691e467435
google.golang.org/grpc v1.30.0
gotest.tools/v3 v3.0.2
k8s.io/api v0.19.4
k8s.io/apimachinery v0.19.4
k8s.io/apiserver v0.19.4
k8s.io/client-go v0.19.4
k8s.io/component-base v0.19.4
k8s.io/cri-api v0.19.4
k8s.io/klog/v2 v2.2.0
k8s.io/utils v0.0.0-20200729134348-d5654de09c73
)
replace (
github.com/gogo/googleapis => github.com/gogo/googleapis v1.3.2
github.com/golang/protobuf => github.com/golang/protobuf v1.3.5
// urfave/cli must be <= v1.22.1 due to a regression: https://github.com/urfave/cli/issues/1092
github.com/urfave/cli => github.com/urfave/cli v1.22.1
google.golang.org/genproto => google.golang.org/genproto v0.0.0-20200224152610-e50cd9704f63
google.golang.org/grpc => google.golang.org/grpc v1.27.1
)

738
vendor/github.com/containerd/containerd/go.sum generated vendored Normal file
View File

@ -0,0 +1,738 @@
bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.51.0/go.mod h1:hWtGJ6gnXH+KgDv+V0zFGDvpi07n3z8ZNj3T1RW0Gcw=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/Azure/azure-sdk-for-go v16.2.1+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
github.com/Azure/go-autorest v10.8.1+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
github.com/Azure/go-autorest/autorest v0.9.6/go.mod h1:/FALq9T/kS7b5J5qsQ+RSTUdAmGFqi0vUdVNNx8q630=
github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
github.com/Azure/go-autorest/autorest/adal v0.8.2/go.mod h1:ZjhuQClTqx435SRJ2iMlOxPYt3d2C/T/7TiQCVZSn3Q=
github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
github.com/Azure/go-autorest/autorest/date v0.2.0/go.mod h1:vcORJHLJEh643/Ioh9+vPmf1Ij9AEBM5FuBIXLmIy0g=
github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
github.com/Azure/go-autorest/autorest/mocks v0.3.0/go.mod h1:a8FDP3DYzQ4RYfVAxAN3SVSiiO77gL2j2ronKKP0syM=
github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/Microsoft/go-winio v0.4.11/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
github.com/Microsoft/go-winio v0.4.15-0.20190919025122-fc70bd9a86b5/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
github.com/Microsoft/go-winio v0.4.15-0.20200908182639-5b44b70ab3ab/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
github.com/Microsoft/go-winio v0.4.15 h1:qkLXKzb1QoVatRyd/YlXZ/Kg0m5K3SPuoD82jjSOaBc=
github.com/Microsoft/go-winio v0.4.15/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
github.com/Microsoft/hcsshim v0.8.6/go.mod h1:Op3hHsoHPAvb6lceZHDtd9OkTew38wNoXnJs8iY7rUg=
github.com/Microsoft/hcsshim v0.8.7-0.20190325164909-8abdbb8205e4/go.mod h1:Op3hHsoHPAvb6lceZHDtd9OkTew38wNoXnJs8iY7rUg=
github.com/Microsoft/hcsshim v0.8.7/go.mod h1:OHd7sQqRFrYd3RmSgbgji+ctCwkbq2wbEYNSzOYtcBQ=
github.com/Microsoft/hcsshim v0.8.9/go.mod h1:5692vkUqntj1idxauYlpoINNKeqCiG6Sg38RRsjT5y8=
github.com/Microsoft/hcsshim v0.8.10 h1:k5wTrpnVU2/xv8ZuzGkbXVd3js5zJ8RnumPo5RxiIxU=
github.com/Microsoft/hcsshim v0.8.10/go.mod h1:g5uw8EV2mAlzqe94tfNBNdr89fnbD/n3HV0OhsddkmM=
github.com/Microsoft/hcsshim/test v0.0.0-20201119174602-966bebae11b4 h1:1Q14MTWJKwTKSXQqAumktvGuUZ5dZflHNm/sMgGa7/4=
github.com/Microsoft/hcsshim/test v0.0.0-20201119174602-966bebae11b4/go.mod h1:IrOsC3sbIiki4idDR4z1Plxm8vAUM5dKN/HEVkRU0GI=
github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d/go.mod h1:HI8ITrYtUY+O+ZhtlqUnD8+KwNPOyugEhfP9fdUIaEQ=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alexflint/go-filemutex v0.0.0-20171022225611-72bdc8eae2ae/go.mod h1:CgnQgUtFrFz9mxFNtED3jI5tLDjKlOM+oUF/sTk6ps0=
github.com/aws/aws-sdk-go v1.15.11/go.mod h1:mFuSZ37Z9YOHbQEwBWztmVzqXrEkub65tZoCYDt7FT0=
github.com/beorn7/perks v0.0.0-20160804104726-4c0e84591b9a/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
github.com/bitly/go-simplejson v0.5.0/go.mod h1:cXHtHw4XUPsvGaxgjIAn8PhEWG9NfngEKAMDJEczWVA=
github.com/blang/semver v3.1.0+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
github.com/blang/semver v3.5.0+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
github.com/bshuster-repo/logrus-logstash-hook v0.4.1/go.mod h1:zsTqEiSzDgAa/8GZR7E1qaXrhYNDKBYy5/dWPTIflbk=
github.com/buger/jsonparser v0.0.0-20180808090653-f4dd9f5a6b44/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
github.com/bugsnag/bugsnag-go v0.0.0-20141110184014-b1d153021fcd/go.mod h1:2oa8nejYd4cQ/b0hMIopN0lCRxU0bueqREvZLWFrtK8=
github.com/bugsnag/osext v0.0.0-20130617224835-0dd3f918b21b/go.mod h1:obH5gd0BsqsP2LwDJ9aOkm/6J86V6lyAXCoQWGw3K50=
github.com/bugsnag/panicwrap v0.0.0-20151223152923-e2c28503fcd0/go.mod h1:D/8v3kj0zr8ZAKg1AQ6crr+5VwKN5eIywRkfhyM/+dE=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/checkpoint-restore/go-criu/v4 v4.1.0/go.mod h1:xUQBLp4RLc5zJtWY++yjOoMoB5lihDt7fai+75m+rGw=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/cilium/ebpf v0.0.0-20200110133405-4032b1d8aae3/go.mod h1:MA5e5Lr8slmEg9bt0VpxxWqJlO4iwu3FBdHUzV7wQVg=
github.com/cilium/ebpf v0.0.0-20200702112145-1c8d4c9ef775 h1:cHzBGGVew0ezFsq2grfy2RsB8hO/eNyBgOLHBCqfR1U=
github.com/cilium/ebpf v0.0.0-20200702112145-1c8d4c9ef775/go.mod h1:7cR51M8ViRLIdUjrmSXlK9pkrsDlLHbO8jiB8X8JnOc=
github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
github.com/containerd/aufs v0.0.0-20200908144142-dab0cbea06f4 h1:sSm1RGQzUTr23yR6SS7RIBBLV8V2bFIu07z4nyVOwmI=
github.com/containerd/aufs v0.0.0-20200908144142-dab0cbea06f4/go.mod h1:nukgQABAEopAHvB6j7cnP5zJ+/3aVcE7hCYqvIwAHyE=
github.com/containerd/btrfs v0.0.0-20201111183144-404b9149801e h1:chFw/cg0TDyK43qm8DKbblny2WHc4ML+j1KOkdEp9pI=
github.com/containerd/btrfs v0.0.0-20201111183144-404b9149801e/go.mod h1:jg2QkJcsabfHugurUvvPhS3E08Oxiuh5W/g1ybB4e0E=
github.com/containerd/cgroups v0.0.0-20190717030353-c4b9ac5c7601/go.mod h1:X9rLEHIqSf/wfK8NsPqxJmeZgW4pcfzdXITDrUSJ6uI=
github.com/containerd/cgroups v0.0.0-20190919134610-bf292b21730f/go.mod h1:OApqhQ4XNSNC13gXIwDjhOQxjWa/NxkwZXJ1EvqT0ko=
github.com/containerd/cgroups v0.0.0-20200531161412-0dbf7f05ba59/go.mod h1:pA0z1pT8KYB3TCXK/ocprsh7MAkoW8bZVzPdih9snmM=
github.com/containerd/cgroups v0.0.0-20200710171044-318312a37340/go.mod h1:s5q4SojHctfxANBDvMeIaIovkq29IP48TKAxnhYRxvo=
github.com/containerd/cgroups v0.0.0-20200824123100-0b889c03f102 h1:Qf4HiqfvmB7zS6scsmNgTLmByHbq8n9RTF39v+TzP7A=
github.com/containerd/cgroups v0.0.0-20200824123100-0b889c03f102/go.mod h1:s5q4SojHctfxANBDvMeIaIovkq29IP48TKAxnhYRxvo=
github.com/containerd/console v0.0.0-20180822173158-c12b1e7919c1/go.mod h1:Tj/on1eG8kiEhd0+fhSDzsPAFESxzBBvdyEgyryXffw=
github.com/containerd/console v0.0.0-20181022165439-0650fd9eeb50/go.mod h1:Tj/on1eG8kiEhd0+fhSDzsPAFESxzBBvdyEgyryXffw=
github.com/containerd/console v0.0.0-20191206165004-02ecf6a7291e/go.mod h1:8Pf4gM6VEbTNRIT26AyyU7hxdQU3MvAvxVI0sc00XBE=
github.com/containerd/console v1.0.0/go.mod h1:8Pf4gM6VEbTNRIT26AyyU7hxdQU3MvAvxVI0sc00XBE=
github.com/containerd/console v1.0.1 h1:u7SFAJyRqWcG6ogaMAx3KjSTy1e3hT9QxqX7Jco7dRc=
github.com/containerd/console v1.0.1/go.mod h1:XUsP6YE/mKtz6bxc+I8UiKKTP04qjQL4qcS3XoQ5xkw=
github.com/containerd/containerd v1.2.10/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.3.0-beta.2.0.20190828155532-0293cbd26c69/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.3.0/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.3.1-0.20191213020239-082f7e3aed57/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.3.2/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/containerd v1.4.0-beta.2.0.20200729163537-40b22ef07410/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
github.com/containerd/continuity v0.0.0-20190815185530-f2a389ac0a02/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
github.com/containerd/continuity v0.0.0-20191127005431-f65d91d395eb/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
github.com/containerd/continuity v0.0.0-20200710164510-efbc4488d8fe h1:PEmIrUvwG9Yyv+0WKZqjXfSFDeZjs/q15g0m08BYS9k=
github.com/containerd/continuity v0.0.0-20200710164510-efbc4488d8fe/go.mod h1:cECdGN1O8G9bgKTlLhuPJimka6Xb/Gg7vYzCTNVxhvo=
github.com/containerd/continuity v0.0.0-20201208142359-180525291bb7 h1:6ejg6Lkk8dskcM7wQ28gONkukbQkM4qpj4RnYbpFzrI=
github.com/containerd/continuity v0.0.0-20201208142359-180525291bb7/go.mod h1:kR3BEg7bDFaEddKm54WSmrol1fKWDU1nKYkgrcgZT7Y=
github.com/containerd/fifo v0.0.0-20180307165137-3d5202aec260/go.mod h1:ODA38xgv3Kuk8dQz2ZQXpnv/UZZUHUCL7pnLehbXgQI=
github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448/go.mod h1:ODA38xgv3Kuk8dQz2ZQXpnv/UZZUHUCL7pnLehbXgQI=
github.com/containerd/fifo v0.0.0-20200410184934-f15a3290365b/go.mod h1:jPQ2IAeZRCYxpS/Cm1495vGFww6ecHmMk1YJH2Q5ln0=
github.com/containerd/fifo v0.0.0-20201026212402-0724c46b320c h1:1c6xmkNiu6Jnr6AKGM91GGNsfU+nPNFvw9BZFSo0E+c=
github.com/containerd/fifo v0.0.0-20201026212402-0724c46b320c/go.mod h1:jPQ2IAeZRCYxpS/Cm1495vGFww6ecHmMk1YJH2Q5ln0=
github.com/containerd/go-cni v1.0.1 h1:VXr2EkOPD0v1gu7CKfof6XzEIDzsE/dI9yj/W7PSWLs=
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github.com/yvasiyarov/go-metrics v0.0.0-20140926110328-57bccd1ccd43/go.mod h1:aX5oPXxHm3bOH+xeAttToC8pqch2ScQN/JoXYupl6xs=
github.com/yvasiyarov/gorelic v0.0.0-20141212073537-a9bba5b9ab50/go.mod h1:NUSPSUX/bi6SeDMUh6brw0nXpxHnc96TguQh0+r/ssA=
github.com/yvasiyarov/newrelic_platform_go v0.0.0-20140908184405-b21fdbd4370f/go.mod h1:GlGEuHIJweS1mbCqG+7vt2nvWLzLLnRHbXz5JKd/Qbg=
go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
go.etcd.io/bbolt v1.3.5 h1:XAzx9gjCb0Rxj7EoqcClPD1d5ZBxZJk0jbuoPHenBt0=
go.etcd.io/bbolt v1.3.5/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
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go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
go.opencensus.io v0.22.2 h1:75k/FF0Q2YM8QYo07VPddOLBslDt1MZOdEslOHvmzAs=
go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
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go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
golang.org/x/crypto v0.0.0-20171113213409-9f005a07e0d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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golang.org/x/crypto v0.0.0-20181009213950-7c1a557ab941/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek=
golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
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golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
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golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
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golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20190619014844-b5b0513f8c1b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191004110552-13f9640d40b9/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
golang.org/x/net v0.0.0-20200707034311-ab3426394381 h1:VXak5I6aEWmAXeQjA+QSZzlgNrpq9mjcfDemuexIKsU=
golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6 h1:pE8b58s1HRDMi8RDc79m0HISf9D4TzseP40cEA6IGfs=
golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=

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@ -78,6 +78,8 @@ func DiffCompression(ctx context.Context, mediaType string) (string, error) {
switch ext[len(ext)-1] {
case "gzip":
return "gzip", nil
case "zstd":
return "zstd", nil
}
}
return "", nil

View File

@ -37,9 +37,17 @@ type (
loggerKey struct{}
)
// RFC3339NanoFixed is time.RFC3339Nano with nanoseconds padded using zeros to
// ensure the formatted time is always the same number of characters.
const RFC3339NanoFixed = "2006-01-02T15:04:05.000000000Z07:00"
const (
// RFC3339NanoFixed is time.RFC3339Nano with nanoseconds padded using zeros to
// ensure the formatted time is always the same number of characters.
RFC3339NanoFixed = "2006-01-02T15:04:05.000000000Z07:00"
// TextFormat represents the text logging format
TextFormat = "text"
// JSONFormat represents the JSON logging format
JSONFormat = "json"
)
// WithLogger returns a new context with the provided logger. Use in
// combination with logger.WithField(s) for great effect.

View File

@ -536,7 +536,7 @@ func WithUser(userstr string) SpecOpts {
}
f := func(root string) error {
if username != "" {
user, err := getUserFromPath(root, func(u user.User) bool {
user, err := UserFromPath(root, func(u user.User) bool {
return u.Name == username
})
if err != nil {
@ -545,7 +545,7 @@ func WithUser(userstr string) SpecOpts {
uid = uint32(user.Uid)
}
if groupname != "" {
gid, err = getGIDFromPath(root, func(g user.Group) bool {
gid, err = GIDFromPath(root, func(g user.Group) bool {
return g.Name == groupname
})
if err != nil {
@ -600,11 +600,11 @@ func WithUserID(uid uint32) SpecOpts {
if !isRootfsAbs(s.Root.Path) {
return errors.Errorf("rootfs absolute path is required")
}
user, err := getUserFromPath(s.Root.Path, func(u user.User) bool {
user, err := UserFromPath(s.Root.Path, func(u user.User) bool {
return u.Uid == int(uid)
})
if err != nil {
if os.IsNotExist(err) || err == errNoUsersFound {
if os.IsNotExist(err) || err == ErrNoUsersFound {
s.Process.User.UID, s.Process.User.GID = uid, 0
return nil
}
@ -626,11 +626,11 @@ func WithUserID(uid uint32) SpecOpts {
return err
}
return mount.WithTempMount(ctx, mounts, func(root string) error {
user, err := getUserFromPath(root, func(u user.User) bool {
user, err := UserFromPath(root, func(u user.User) bool {
return u.Uid == int(uid)
})
if err != nil {
if os.IsNotExist(err) || err == errNoUsersFound {
if os.IsNotExist(err) || err == ErrNoUsersFound {
s.Process.User.UID, s.Process.User.GID = uid, 0
return nil
}
@ -654,7 +654,7 @@ func WithUsername(username string) SpecOpts {
if !isRootfsAbs(s.Root.Path) {
return errors.Errorf("rootfs absolute path is required")
}
user, err := getUserFromPath(s.Root.Path, func(u user.User) bool {
user, err := UserFromPath(s.Root.Path, func(u user.User) bool {
return u.Name == username
})
if err != nil {
@ -675,7 +675,7 @@ func WithUsername(username string) SpecOpts {
return err
}
return mount.WithTempMount(ctx, mounts, func(root string) error {
user, err := getUserFromPath(root, func(u user.User) bool {
user, err := UserFromPath(root, func(u user.User) bool {
return u.Name == username
})
if err != nil {
@ -707,11 +707,11 @@ func WithAdditionalGIDs(userstr string) SpecOpts {
var username string
uid, err := strconv.Atoi(userstr)
if err == nil {
user, err := getUserFromPath(root, func(u user.User) bool {
user, err := UserFromPath(root, func(u user.User) bool {
return u.Uid == uid
})
if err != nil {
if os.IsNotExist(err) || err == errNoUsersFound {
if os.IsNotExist(err) || err == ErrNoUsersFound {
return nil
}
return err
@ -869,9 +869,12 @@ func WithAmbientCapabilities(caps []string) SpecOpts {
}
}
var errNoUsersFound = errors.New("no users found")
// ErrNoUsersFound can be returned from UserFromPath
var ErrNoUsersFound = errors.New("no users found")
func getUserFromPath(root string, filter func(user.User) bool) (user.User, error) {
// UserFromPath inspects the user object using /etc/passwd in the specified rootfs.
// filter can be nil.
func UserFromPath(root string, filter func(user.User) bool) (user.User, error) {
ppath, err := fs.RootPath(root, "/etc/passwd")
if err != nil {
return user.User{}, err
@ -881,14 +884,17 @@ func getUserFromPath(root string, filter func(user.User) bool) (user.User, error
return user.User{}, err
}
if len(users) == 0 {
return user.User{}, errNoUsersFound
return user.User{}, ErrNoUsersFound
}
return users[0], nil
}
var errNoGroupsFound = errors.New("no groups found")
// ErrNoGroupsFound can be returned from GIDFromPath
var ErrNoGroupsFound = errors.New("no groups found")
func getGIDFromPath(root string, filter func(user.Group) bool) (gid uint32, err error) {
// GIDFromPath inspects the GID using /etc/passwd in the specified rootfs.
// filter can be nil.
func GIDFromPath(root string, filter func(user.Group) bool) (gid uint32, err error) {
gpath, err := fs.RootPath(root, "/etc/group")
if err != nil {
return 0, err
@ -898,7 +904,7 @@ func getGIDFromPath(root string, filter func(user.Group) bool) (gid uint32, err
return 0, err
}
if len(groups) == 0 {
return 0, errNoGroupsFound
return 0, ErrNoGroupsFound
}
g := groups[0]
return uint32(g.Gid), nil

View File

@ -19,6 +19,8 @@
package platforms
import (
"runtime"
specs "github.com/opencontainers/image-spec/specs-go/v1"
)
@ -26,6 +28,6 @@ import (
func Default() MatchComparer {
return Ordered(DefaultSpec(), specs.Platform{
OS: "linux",
Architecture: "amd64",
Architecture: runtime.GOARCH,
})
}

View File

@ -85,6 +85,10 @@ var splitRe = regexp.MustCompile(`[:@]`)
// Parse parses the string into a structured ref.
func Parse(s string) (Spec, error) {
if strings.Contains(s, "://") {
return Spec{}, ErrInvalid
}
u, err := url.Parse("dummy://" + s)
if err != nil {
return Spec{}, err

View File

@ -123,7 +123,7 @@ func applyLayers(ctx context.Context, layers []Layer, chain []digest.Digest, sn
)
for {
key = fmt.Sprintf("extract-%s %s", uniquePart(), chainID)
key = fmt.Sprintf(snapshots.UnpackKeyFormat, uniquePart(), chainID)
// Prepare snapshot with from parent, label as root
mounts, err = sn.Prepare(ctx, key, parent.String(), opts...)

View File

@ -26,6 +26,10 @@ import (
)
const (
// UnpackKeyPrefix is the beginning of the key format used for snapshots that will have
// image content unpacked into them.
UnpackKeyPrefix = "extract"
UnpackKeyFormat = UnpackKeyPrefix + "-%s %s"
inheritedLabelsPrefix = "containerd.io/snapshot/"
labelSnapshotRef = "containerd.io/snapshot.ref"
)

View File

@ -503,6 +503,8 @@ func (t *task) Checkpoint(ctx context.Context, opts ...CheckpointTaskOpts) (Imag
type UpdateTaskInfo struct {
// Resources updates a tasks resource constraints
Resources interface{}
// Annotations allows arbitrary and/or experimental resource constraints for task update
Annotations map[string]string
}
// UpdateTaskOpts allows a caller to update task settings
@ -525,6 +527,9 @@ func (t *task) Update(ctx context.Context, opts ...UpdateTaskOpts) error {
}
request.Resources = any
}
if i.Annotations != nil {
request.Annotations = i.Annotations
}
_, err := t.client.TaskService().Update(ctx, request)
return errdefs.FromGRPC(err)
}

View File

@ -209,3 +209,11 @@ func WithResources(resources interface{}) UpdateTaskOpts {
return nil
}
}
// WithAnnotations sets the provided annotations for task updates.
func WithAnnotations(annotations map[string]string) UpdateTaskOpts {
return func(ctx context.Context, client *Client, r *UpdateTaskInfo) error {
r.Annotations = annotations
return nil
}
}

View File

@ -138,7 +138,7 @@ EachLayer:
for try := 1; try <= 3; try++ {
// Prepare snapshot with from parent, label as root
key = fmt.Sprintf("extract-%s %s", uniquePart(), chainID)
key = fmt.Sprintf(snapshots.UnpackKeyFormat, uniquePart(), chainID)
mounts, err = sn.Prepare(ctx, key, parent.String(), opts...)
if err != nil {
if errdefs.IsAlreadyExists(err) {

View File

@ -1,107 +0,0 @@
github.com/beorn7/perks v1.0.1
github.com/BurntSushi/toml v0.3.1
github.com/cespare/xxhash/v2 v2.1.1
github.com/containerd/btrfs 404b9149801e455c8076f615b06dc0abee0a977a
github.com/containerd/cgroups 0b889c03f102012f1d93a97ddd3ef71cd6f4f510
github.com/containerd/console v1.0.1
github.com/containerd/continuity efbc4488d8fe1bdc16bde3b2d2990d9b3a899165
github.com/containerd/fifo 0724c46b320cf96bb172a0550c19a4b1fca4dacb
github.com/containerd/go-runc 7016d3ce2328dd2cb1192b2076ebd565c4e8df0c
github.com/containerd/nri eb1350a75164f76de48e3605389e7a3fbc85d06e
github.com/containerd/ttrpc v1.0.2
github.com/containerd/typeurl v1.0.1
github.com/coreos/go-systemd/v22 v22.1.0
github.com/cpuguy83/go-md2man/v2 v2.0.0
github.com/docker/go-events e31b211e4f1cd09aa76fe4ac244571fab96ae47f
github.com/docker/go-metrics v0.0.1
github.com/docker/go-units v0.4.0
github.com/godbus/dbus/v5 v5.0.3
github.com/gogo/googleapis v1.3.2
github.com/gogo/protobuf v1.3.1
github.com/golang/protobuf v1.3.5
github.com/google/go-cmp v0.2.0
github.com/google/uuid v1.1.1
github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0
github.com/hashicorp/errwrap v1.0.0
github.com/hashicorp/go-multierror v1.0.0
github.com/hashicorp/golang-lru v0.5.3
github.com/imdario/mergo v0.3.7
github.com/matttproud/golang_protobuf_extensions v1.0.1
github.com/Microsoft/go-winio v0.4.14
github.com/Microsoft/hcsshim v0.8.10
github.com/moby/sys symlink/v0.1.0
github.com/opencontainers/go-digest v1.0.0
github.com/opencontainers/image-spec v1.0.1
github.com/opencontainers/runc v1.0.0-rc92
github.com/opencontainers/runtime-spec 4d89ac9fbff6c455f46a5bb59c6b1bb7184a5e43 # v1.0.3-0.20200728170252-4d89ac9fbff6
github.com/pkg/errors v0.9.1
github.com/prometheus/client_golang v1.6.0
github.com/prometheus/client_model v0.2.0
github.com/prometheus/common v0.9.1
github.com/prometheus/procfs v0.0.11
github.com/russross/blackfriday/v2 v2.0.1
github.com/shurcooL/sanitized_anchor_name v1.0.0
github.com/sirupsen/logrus v1.7.0
github.com/syndtr/gocapability d98352740cb2c55f81556b63d4a1ec64c5a319c2
github.com/urfave/cli v1.22.1 # NOTE: urfave/cli must be <= v1.22.1 due to a regression: https://github.com/urfave/cli/issues/1092
go.etcd.io/bbolt v1.3.5
go.opencensus.io v0.22.0
golang.org/x/net ab34263943818b32f575efc978a3d24e80b04bd7
golang.org/x/sync 42b317875d0fa942474b76e1b46a6060d720ae6e
golang.org/x/sys 0aaa2718063a42560507fce2cc04508608ca23b3
golang.org/x/text v0.3.3
google.golang.org/genproto e50cd9704f63023d62cd06a1994b98227fc4d21a
google.golang.org/grpc v1.27.1
gotest.tools/v3 v3.0.2
# cgroups dependencies
github.com/cilium/ebpf 1c8d4c9ef7759622653a1d319284a44652333b28
# cri dependencies
github.com/davecgh/go-spew v1.1.1
github.com/docker/spdystream 449fdfce4d962303d702fec724ef0ad181c92528
github.com/emicklei/go-restful v2.9.5
github.com/go-logr/logr v0.2.0
github.com/google/gofuzz v1.1.0
github.com/json-iterator/go v1.1.10
github.com/modern-go/concurrent 1.0.3
github.com/modern-go/reflect2 v1.0.1
github.com/opencontainers/selinux v1.6.0
github.com/pmezard/go-difflib v1.0.0
github.com/stretchr/testify v1.4.0
github.com/tchap/go-patricia v2.2.6
github.com/willf/bitset v1.1.11
golang.org/x/crypto 75b288015ac94e66e3d6715fb68a9b41bf046ec2
golang.org/x/oauth2 858c2ad4c8b6c5d10852cb89079f6ca1c7309787
golang.org/x/time 555d28b269f0569763d25dbe1a237ae74c6bcc82
gopkg.in/inf.v0 v0.9.1
gopkg.in/yaml.v2 v2.2.8
k8s.io/api v0.19.4
k8s.io/apimachinery v0.19.4
k8s.io/apiserver v0.19.4
k8s.io/client-go v0.19.4
k8s.io/component-base v0.19.4
k8s.io/cri-api v0.19.4
k8s.io/klog/v2 v2.2.0
k8s.io/utils d5654de09c73da55eb19ae4ab4f734f7a61747a6
sigs.k8s.io/structured-merge-diff/v4 v4.0.1
sigs.k8s.io/yaml v1.2.0
# cni dependencies
github.com/containerd/go-cni v1.0.1
github.com/containernetworking/cni v0.8.0
github.com/containernetworking/plugins v0.8.6
github.com/fsnotify/fsnotify v1.4.9
# image decrypt depedencies
github.com/containerd/imgcrypt v1.0.1
github.com/containers/ocicrypt v1.0.1
github.com/fullsailor/pkcs7 8306686428a5fe132eac8cb7c4848af725098bd4
gopkg.in/square/go-jose.v2 v2.3.1
# zfs dependencies
github.com/containerd/zfs 0a33824f23a2ab8ec84166f47b571ecb793b0354
github.com/mistifyio/go-zfs f784269be439d704d3dfa1906f45dd848fed2beb
# aufs dependencies
github.com/containerd/aufs dab0cbea06f43329c07667afe1a70411ad555a86

View File

@ -19,11 +19,15 @@ Justin Cummins <sul3n3t@gmail.com>
Kasper Fabæch Brandt <poizan@poizan.dk>
Kir Kolyshkin <kolyshkin@gmail.com>
Michael Crosby <crosbymichael@gmail.com>
Michael Crosby <michael@thepasture.io>
Michael Wan <zirenwan@gmail.com>
Mike Brown <brownwm@us.ibm.com>
Niels de Vos <ndevos@redhat.com>
Phil Estes <estesp@gmail.com>
Phil Estes <estesp@linux.vnet.ibm.com>
Samuel Karp <me@samuelkarp.com>
Sam Whited <sam@samwhited.com>
Sebastiaan van Stijn <github@gone.nl>
Shengjing Zhu <zhsj@debian.org>
Stephen J Day <stephen.day@docker.com>
Tibor Vass <tibor@docker.com>

View File

@ -63,6 +63,10 @@ $ stat -c %a Makefile
$ ./bin/continuity verify . /tmp/a.pb
```
## Platforms
continuity primarily targets Linux. continuity may compile for and work on
other operating systems, but those platforms are not tested.
## Contribution Guide
### Building Proto Package

View File

@ -56,7 +56,7 @@ func Mknod(p string, mode os.FileMode, maj, min int) error {
m |= unix.S_IFIFO
}
return unix.Mknod(p, m, int(dev))
return mknod(p, m, dev)
}
// syscallMode returns the syscall-specific mode bits from Go's portable mode bits.

View File

@ -0,0 +1,25 @@
// +build freebsd
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package devices
import "golang.org/x/sys/unix"
func mknod(path string, mode uint32, dev uint64) (err error) {
return unix.Mknod(path, mode, dev)
}

View File

@ -0,0 +1,25 @@
// +build linux darwin solaris
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package devices
import "golang.org/x/sys/unix"
func mknod(path string, mode uint32, dev uint64) (err error) {
return unix.Mknod(path, mode, int(dev))
}

View File

@ -0,0 +1,40 @@
// +build darwin openbsd solaris
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package fs
import (
"os"
"syscall"
"github.com/pkg/errors"
"golang.org/x/sys/unix"
)
func copyDevice(dst string, fi os.FileInfo) error {
st, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
return errors.New("unsupported stat type")
}
return unix.Mknod(dst, uint32(fi.Mode()), int(st.Rdev))
}
func utimesNano(name string, atime, mtime syscall.Timespec) error {
timespec := []syscall.Timespec{atime, mtime}
return syscall.UtimesNano(name, timespec)
}

View File

@ -0,0 +1,42 @@
// +build freebsd
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package fs
import (
"os"
"syscall"
"github.com/pkg/errors"
"golang.org/x/sys/unix"
)
func copyDevice(dst string, fi os.FileInfo) error {
st, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
return errors.New("unsupported stat type")
}
return unix.Mknod(dst, uint32(fi.Mode()), st.Rdev)
}
func utimesNano(name string, atime, mtime syscall.Timespec) error {
at := unix.NsecToTimespec(atime.Nano())
mt := unix.NsecToTimespec(mtime.Nano())
utimes := [2]unix.Timespec{at, mt}
return unix.UtimesNanoAt(unix.AT_FDCWD, name, utimes[0:], unix.AT_SYMLINK_NOFOLLOW)
}

View File

@ -25,7 +25,6 @@ import (
"github.com/containerd/continuity/sysx"
"github.com/pkg/errors"
"golang.org/x/sys/unix"
)
func copyFileInfo(fi os.FileInfo, name string) error {
@ -53,8 +52,7 @@ func copyFileInfo(fi os.FileInfo, name string) error {
}
}
timespec := []syscall.Timespec{StatAtime(st), StatMtime(st)}
if err := syscall.UtimesNano(name, timespec); err != nil {
if err := utimesNano(name, StatAtime(st), StatMtime(st)); err != nil {
return errors.Wrapf(err, "failed to utime %s", name)
}
@ -102,11 +100,3 @@ func copyXAttrs(dst, src string, xeh XAttrErrorHandler) error {
return nil
}
func copyDevice(dst string, fi os.FileInfo) error {
st, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
return errors.New("unsupported stat type")
}
return unix.Mknod(dst, uint32(fi.Mode()), int(st.Rdev))
}

View File

@ -25,6 +25,14 @@ import (
"syscall"
)
// blocksUnitSize is the unit used by `st_blocks` in `stat` in bytes.
// See https://man7.org/linux/man-pages/man2/stat.2.html
// st_blocks
// This field indicates the number of blocks allocated to the
// file, in 512-byte units. (This may be smaller than
// st_size/512 when the file has holes.)
const blocksUnitSize = 512
type inode struct {
// TODO(stevvooe): Can probably reduce memory usage by not tracking
// device, but we can leave this right for now.
@ -33,9 +41,9 @@ type inode struct {
func newInode(stat *syscall.Stat_t) inode {
return inode{
// Dev is uint32 on darwin/bsd, uint64 on linux/solaris
// Dev is uint32 on darwin/bsd, uint64 on linux/solaris/freebsd
dev: uint64(stat.Dev), // nolint: unconvert
// Ino is uint32 on bsd, uint64 on darwin/linux/solaris
// Ino is uint32 on bsd, uint64 on darwin/linux/solaris/freebsd
ino: uint64(stat.Ino), // nolint: unconvert
}
}
@ -59,10 +67,11 @@ func diskUsage(ctx context.Context, roots ...string) (Usage, error) {
default:
}
inoKey := newInode(fi.Sys().(*syscall.Stat_t))
stat := fi.Sys().(*syscall.Stat_t)
inoKey := newInode(stat)
if _, ok := inodes[inoKey]; !ok {
inodes[inoKey] = struct{}{}
size += fi.Size()
size += stat.Blocks * blocksUnitSize
}
return nil
@ -89,10 +98,11 @@ func diffUsage(ctx context.Context, a, b string) (Usage, error) {
}
if kind == ChangeKindAdd || kind == ChangeKindModify {
inoKey := newInode(fi.Sys().(*syscall.Stat_t))
stat := fi.Sys().(*syscall.Stat_t)
inoKey := newInode(stat)
if _, ok := inodes[inoKey]; !ok {
inodes[inoKey] = struct{}{}
size += fi.Size()
size += stat.Blocks * blocksUnitSize
}
return nil

View File

@ -4,20 +4,16 @@ go 1.13
require (
bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898
github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4
github.com/dustin/go-humanize v1.0.0
github.com/golang/protobuf v1.2.0
github.com/inconshreveable/mousetrap v1.0.0 // indirect
github.com/onsi/ginkgo v1.10.1 // indirect
github.com/onsi/gomega v1.7.0 // indirect
github.com/opencontainers/go-digest v1.0.0-rc1
github.com/pkg/errors v0.8.1-0.20171018195549-f15c970de5b7
github.com/sirupsen/logrus v1.0.4-0.20170822132746-89742aefa4b2
github.com/opencontainers/go-digest v1.0.0
github.com/pkg/errors v0.9.1
github.com/sirupsen/logrus v1.6.0
github.com/spf13/cobra v0.0.2-0.20171109065643-2da4a54c5cee
github.com/spf13/pflag v1.0.1-0.20171106142849-4c012f6dcd95 // indirect
github.com/stretchr/testify v1.4.0 // indirect
golang.org/x/crypto v0.0.0-20171113213409-9f005a07e0d3 // indirect
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd // indirect
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e
gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect
gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 // indirect
golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3
)

View File

@ -1,57 +1,40 @@
bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898 h1:SC+c6A1qTFstO9qmB86mPV2IpYme/2ZoEQ0hrP+wo+Q=
bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4 h1:qk/FSDDxo05wdJH28W+p5yivv7LuLYLRXPPD8KQCtZs=
github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/ginkgo v1.10.1 h1:q/mM8GF/n0shIN8SaAZ0V+jnLPzen6WIVZdiwrRlMlo=
github.com/onsi/ginkgo v1.10.1/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/gomega v1.7.0 h1:XPnZz8VVBHjVsy1vzJmRwIcSwiUO+JFfrv/xGiigmME=
github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
github.com/opencontainers/go-digest v1.0.0-rc1 h1:WzifXhOVOEOuFYOJAW6aQqW0TooG2iki3E3Ii+WN7gQ=
github.com/opencontainers/go-digest v1.0.0-rc1/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
github.com/pkg/errors v0.8.1-0.20171018195549-f15c970de5b7 h1:RcqIXZDN7Vz5lgK7+0h3MFF2JNgEu4h91palXJLJ354=
github.com/pkg/errors v0.8.1-0.20171018195549-f15c970de5b7/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/konsorten/go-windows-terminal-sequences v1.0.3 h1:CE8S1cTafDpPvMhIxNJKvHsGVBgn1xWYf1NbHQhywc8=
github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/sirupsen/logrus v1.0.4-0.20170822132746-89742aefa4b2 h1:a07zp0wovcAE2jH+wlD22JLqUH6Rdl8Aon+NiyPxE+0=
github.com/sirupsen/logrus v1.0.4-0.20170822132746-89742aefa4b2/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
github.com/sirupsen/logrus v1.6.0 h1:UBcNElsrwanuuMsnGSlYmtmgbb23qDR5dG+6X6Oo89I=
github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
github.com/spf13/cobra v0.0.2-0.20171109065643-2da4a54c5cee h1:GQkkv3XSnxhAMjdq2wLfEnptEVr+2BNvmHizILHn+d4=
github.com/spf13/cobra v0.0.2-0.20171109065643-2da4a54c5cee/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
github.com/spf13/pflag v1.0.1-0.20171106142849-4c012f6dcd95 h1:j8jxLbQ0+T1DFggy6XoGvyUnrJWPR/JybflPvu5rwS4=
github.com/spf13/pflag v1.0.1-0.20171106142849-4c012f6dcd95/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
golang.org/x/crypto v0.0.0-20171113213409-9f005a07e0d3 h1:f4/ZD59VsBOaJmWeI2yqtHvJhmRRPzi73C88ZtfhAIk=
golang.org/x/crypto v0.0.0-20171113213409-9f005a07e0d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd h1:nTDtHvHSdCn1m6ITfMRqtOd/9+7a3s8RBNOZ3eYZzJA=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e h1:o3PsSEY8E4eXWkXrIP9YJALUkVZqzHJT5DOasTyn8Vs=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
gopkg.in/airbrake/gobrake.v2 v2.0.9 h1:7z2uVWwn7oVeeugY1DtlPAy5H+KYgB1KeKTnqjNatLo=
gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3 h1:kzM6+9dur93BcC2kVlYl34cHU+TYZLanmpSJHVMmL64=
golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 h1:OAj3g0cR6Dx/R07QgQe8wkA9RNjB2u4i700xBkIT4e0=
gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

View File

@ -0,0 +1,202 @@
Apache License
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http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
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5. Submission of Contributions. Unless You explicitly state otherwise,
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names, trademarks, service marks, or product names of the Licensor,
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7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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whether in tort (including negligence), contract, or otherwise,
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APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
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Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
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See the License for the specific language governing permissions and
limitations under the License.

View File

@ -14,54 +14,97 @@
limitations under the License.
*/
/*
Copyright 2019 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
*/
package estargz
import (
"archive/tar"
"bytes"
"compress/gzip"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"os"
"path"
"runtime"
"strings"
"sync"
"github.com/containerd/stargz-snapshotter/estargz/stargz"
"github.com/containerd/stargz-snapshotter/util/positionwatcher"
"github.com/containerd/stargz-snapshotter/util/tempfiles"
"github.com/containerd/stargz-snapshotter/estargz/errorutil"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
"golang.org/x/sync/errgroup"
)
const (
landmarkContents = 0xf
)
type options struct {
chunkSize int
chunkSize int
compressionLevel int
prioritizedFiles []string
}
type Option func(o *options)
// WithChunkSize option specifies the chunk size of eStargz blob to build.
func WithChunkSize(chunkSize int) Option {
return func(o *options) {
o.chunkSize = chunkSize
}
}
// WithCompressionLevel option specifies the gzip compression level.
// The default is gzip.BestCompression.
// See also: https://godoc.org/compress/gzip#pkg-constants
func WithCompressionLevel(level int) Option {
return func(o *options) {
o.compressionLevel = level
}
}
// WithPrioritizedFiles option specifies the list of prioritized files.
// These files must be a complete path relative to "/" (e.g. "foo/bar",
// "./foo/bar")
func WithPrioritizedFiles(files []string) Option {
return func(o *options) {
o.prioritizedFiles = files
}
}
// Blob is an eStargz blob.
type Blob struct {
io.ReadCloser
diffID digest.Digester
tocDigest digest.Digest
}
// DiffID returns the digest of uncompressed blob.
// It is only valid to call DiffID after Close.
func (b *Blob) DiffID() digest.Digest {
return b.diffID.Digest()
}
// TOCDigest returns the digest of uncompressed TOC JSON.
func (b *Blob) TOCDigest() digest.Digest {
return b.tocDigest
}
// Build builds an eStargz blob which is an extended version of stargz, from tar blob passed
// through the argument. If there are some prioritized files are listed in the argument, these
// through the argument. If there are some prioritized files are listed in the option, these
// files are grouped as "prioritized" and can be used for runtime optimization (e.g. prefetch).
// This function builds a blob in parallel, with dividing that blob into several (at least the
// number of runtime.GOMAXPROCS(0)) sub-blobs.
func Build(tarBlob *io.SectionReader, prioritized []string, opt ...Option) (_ io.ReadCloser, _ digest.Digest, rErr error) {
func Build(tarBlob *io.SectionReader, opt ...Option) (_ *Blob, rErr error) {
var opts options
opts.compressionLevel = gzip.BestCompression // BestCompression by default
for _, o := range opt {
o(&opts)
}
layerFiles := tempfiles.NewTempFiles()
layerFiles := newTempFiles()
defer func() {
if rErr != nil {
if err := layerFiles.CleanupAll(); err != nil {
@ -69,92 +112,155 @@ func Build(tarBlob *io.SectionReader, prioritized []string, opt ...Option) (_ io
}
}
}()
entries, err := sort(tarBlob, prioritized)
entries, err := sortEntries(tarBlob, opts.prioritizedFiles)
if err != nil {
return nil, "", err
return nil, err
}
tarParts := divideEntries(entries, runtime.GOMAXPROCS(0))
sgzParts := make([]*io.SectionReader, len(tarParts))
var sgzPartsMu sync.Mutex
writers := make([]*Writer, len(tarParts))
payloads := make([]*os.File, len(tarParts))
var mu sync.Mutex
var eg errgroup.Group
for i, parts := range tarParts {
i, parts := i, parts
// builds verifiable stargz sub-blobs
eg.Go(func() error {
tmp := tempfiles.NewTempFiles()
defer tmp.CleanupAll()
tmpFile, err := tmp.TempFile("", "tmpdata")
if err != nil {
return err
}
sw := stargz.NewWriter(tmpFile)
sw.ChunkSize = opts.chunkSize
if err := sw.AppendTar(readerFromEntries(parts...)); err != nil {
return err
}
if err := sw.Close(); err != nil {
return err
}
sgz, err := fileSectionReader(tmpFile)
if err != nil {
return err
}
r, _, err := newVerifiableStargz(sgz)
if err != nil {
return err
}
esgzFile, err := layerFiles.TempFile("", "esgzdata")
if err != nil {
return err
}
if _, err := io.Copy(esgzFile, r); err != nil {
sw := NewWriterLevel(esgzFile, opts.compressionLevel)
sw.ChunkSize = opts.chunkSize
if err := sw.AppendTar(readerFromEntries(parts...)); err != nil {
return err
}
sr, err := fileSectionReader(esgzFile)
if err != nil {
return err
}
sgzPartsMu.Lock()
sgzParts[i] = sr
sgzPartsMu.Unlock()
mu.Lock()
writers[i] = sw
payloads[i] = esgzFile
mu.Unlock()
return nil
})
}
if err := eg.Wait(); err != nil {
rErr = err
return nil, "", err
}
wholeBlob, tocDgst, err := combineBlobs(sgzParts...)
if err != nil {
rErr = err
return nil, "", err
}
return readCloser{
Reader: wholeBlob,
closeFunc: layerFiles.CleanupAll,
}, tocDgst, nil
}
type readCloser struct {
io.Reader
closeFunc func() error
}
func (rc readCloser) Close() error {
return rc.closeFunc()
}
func fileSectionReader(file *os.File) (*io.SectionReader, error) {
info, err := file.Stat()
if err != nil {
return nil, err
}
return io.NewSectionReader(file, 0, info.Size()), nil
tocAndFooter, tocDgst, err := closeWithCombine(opts.compressionLevel, writers...)
if err != nil {
rErr = err
return nil, err
}
var rs []io.Reader
for _, p := range payloads {
fs, err := fileSectionReader(p)
if err != nil {
return nil, err
}
rs = append(rs, fs)
}
diffID := digest.Canonical.Digester()
pr, pw := io.Pipe()
go func() {
r, err := gzip.NewReader(io.TeeReader(io.MultiReader(append(rs, tocAndFooter)...), pw))
if err != nil {
pw.CloseWithError(err)
return
}
if _, err := io.Copy(diffID.Hash(), r); err != nil {
pw.CloseWithError(err)
return
}
pw.Close()
}()
return &Blob{
ReadCloser: readCloser{
Reader: pr,
closeFunc: layerFiles.CleanupAll,
},
tocDigest: tocDgst,
diffID: diffID,
}, nil
}
// closeWithCombine takes unclosed Writers and close them. This also returns the
// toc that combined all Writers into.
// Writers doesn't write TOC and footer to the underlying writers so they can be
// combined into a single eStargz and tocAndFooter returned by this function can
// be appended at the tail of that combined blob.
func closeWithCombine(compressionLevel int, ws ...*Writer) (tocAndFooter io.Reader, tocDgst digest.Digest, err error) {
if len(ws) == 0 {
return nil, "", fmt.Errorf("at least one writer must be passed")
}
for _, w := range ws {
if w.closed {
return nil, "", fmt.Errorf("writer must be unclosed")
}
defer func(w *Writer) { w.closed = true }(w)
if err := w.closeGz(); err != nil {
return nil, "", err
}
if err := w.bw.Flush(); err != nil {
return nil, "", err
}
}
var (
mtoc = new(jtoc)
currentOffset int64
)
mtoc.Version = ws[0].toc.Version
for _, w := range ws {
for _, e := range w.toc.Entries {
// Recalculate Offset of non-empty files/chunks
if (e.Type == "reg" && e.Size > 0) || e.Type == "chunk" {
e.Offset += currentOffset
}
mtoc.Entries = append(mtoc.Entries, e)
}
if w.toc.Version > mtoc.Version {
mtoc.Version = w.toc.Version
}
currentOffset += w.cw.n
}
tocJSON, err := json.MarshalIndent(mtoc, "", "\t")
if err != nil {
return nil, "", err
}
pr, pw := io.Pipe()
go func() {
zw, _ := gzip.NewWriterLevel(pw, compressionLevel)
tw := tar.NewWriter(zw)
if err := tw.WriteHeader(&tar.Header{
Typeflag: tar.TypeReg,
Name: TOCTarName,
Size: int64(len(tocJSON)),
}); err != nil {
pw.CloseWithError(err)
return
}
if _, err := tw.Write(tocJSON); err != nil {
pw.CloseWithError(err)
return
}
if err := tw.Close(); err != nil {
pw.CloseWithError(err)
return
}
if err := zw.Close(); err != nil {
pw.CloseWithError(err)
return
}
pw.Close()
}()
return io.MultiReader(
pr,
bytes.NewReader(footerBytes(currentOffset)),
), digest.FromBytes(tocJSON), nil
}
// divideEntries divides passed entries to the parts at least the number specified by the
// argument.
func divideEntries(entries []*tarEntry, minPartsNum int) (set [][]*tarEntry) {
func divideEntries(entries []*entry, minPartsNum int) (set [][]*entry) {
var estimatedSize int64
for _, e := range entries {
estimatedSize += e.header.Size
@ -164,22 +270,22 @@ func divideEntries(entries []*tarEntry, minPartsNum int) (set [][]*tarEntry) {
nextEnd = unitSize
offset int64
)
set = append(set, []*tarEntry{})
set = append(set, []*entry{})
for _, e := range entries {
set[len(set)-1] = append(set[len(set)-1], e)
offset += e.header.Size
if offset > nextEnd {
set = append(set, []*tarEntry{})
set = append(set, []*entry{})
nextEnd += unitSize
}
}
return
}
// sort reads the specified tar blob and returns a list of tar entries.
// sortEntries reads the specified tar blob and returns a list of tar entries.
// If some of prioritized files are specified, the list starts from these
// files with keeping the order specified by the argument.
func sort(in io.ReaderAt, prioritized []string) ([]*tarEntry, error) {
func sortEntries(in io.ReaderAt, prioritized []string) ([]*entry, error) {
// Import tar file.
intar, err := importTar(in)
@ -193,7 +299,7 @@ func sort(in io.ReaderAt, prioritized []string) ([]*tarEntry, error) {
moveRec(l, intar, sorted)
}
if len(prioritized) == 0 {
sorted.add(&tarEntry{
sorted.add(&entry{
header: &tar.Header{
Name: NoPrefetchLandmark,
Typeflag: tar.TypeReg,
@ -202,7 +308,7 @@ func sort(in io.ReaderAt, prioritized []string) ([]*tarEntry, error) {
payload: bytes.NewReader([]byte{landmarkContents}),
})
} else {
sorted.add(&tarEntry{
sorted.add(&entry{
header: &tar.Header{
Name: PrefetchLandmark,
Typeflag: tar.TypeReg,
@ -218,7 +324,7 @@ func sort(in io.ReaderAt, prioritized []string) ([]*tarEntry, error) {
// readerFromEntries returns a reader of tar archive that contains entries passed
// through the arguments.
func readerFromEntries(entries ...*tarEntry) io.Reader {
func readerFromEntries(entries ...*entry) io.Reader {
pr, pw := io.Pipe()
go func() {
tw := tar.NewWriter(pw)
@ -240,7 +346,7 @@ func readerFromEntries(entries ...*tarEntry) io.Reader {
func importTar(in io.ReaderAt) (*tarFile, error) {
tf := &tarFile{}
pw, err := positionwatcher.NewPositionWatcher(in)
pw, err := newCountReader(in)
if err != nil {
return nil, errors.Wrap(err, "failed to make position watcher")
}
@ -257,7 +363,8 @@ func importTar(in io.ReaderAt) (*tarFile, error) {
return nil, errors.Wrap(err, "failed to parse tar file")
}
}
if h.Name == PrefetchLandmark || h.Name == NoPrefetchLandmark {
switch trimNamePrefix(h.Name) {
case PrefetchLandmark, NoPrefetchLandmark:
// Ignore existing landmark
continue
}
@ -266,9 +373,9 @@ func importTar(in io.ReaderAt) (*tarFile, error) {
if _, ok := tf.get(h.Name); ok {
return nil, fmt.Errorf("Duplicated entry(%q) is not supported", h.Name)
}
tf.add(&tarEntry{
tf.add(&entry{
header: h,
payload: io.NewSectionReader(in, pw.CurrentPos(), h.Size),
payload: io.NewSectionReader(in, pw.currentPos(), h.Size),
})
}
@ -290,31 +397,32 @@ func moveRec(name string, in *tarFile, out *tarFile) {
}
}
type tarEntry struct {
type entry struct {
header *tar.Header
payload io.ReadSeeker
}
type tarFile struct {
index map[string]*tarEntry
stream []*tarEntry
index map[string]*entry
stream []*entry
}
func (f *tarFile) add(e *tarEntry) {
func (f *tarFile) add(e *entry) {
if f.index == nil {
f.index = make(map[string]*tarEntry)
f.index = make(map[string]*entry)
}
f.index[e.header.Name] = e
f.index[trimNamePrefix(e.header.Name)] = e
f.stream = append(f.stream, e)
}
func (f *tarFile) remove(name string) {
name = trimNamePrefix(name)
if f.index != nil {
delete(f.index, name)
}
var filtered []*tarEntry
var filtered []*entry
for _, e := range f.stream {
if e.header.Name == name {
if trimNamePrefix(e.header.Name) == name {
continue
}
filtered = append(filtered, e)
@ -322,14 +430,118 @@ func (f *tarFile) remove(name string) {
f.stream = filtered
}
func (f *tarFile) get(name string) (e *tarEntry, ok bool) {
func (f *tarFile) get(name string) (e *entry, ok bool) {
if f.index == nil {
return nil, false
}
e, ok = f.index[name]
e, ok = f.index[trimNamePrefix(name)]
return
}
func (f *tarFile) dump() []*tarEntry {
func (f *tarFile) dump() []*entry {
return f.stream
}
type readCloser struct {
io.Reader
closeFunc func() error
}
func (rc readCloser) Close() error {
return rc.closeFunc()
}
func fileSectionReader(file *os.File) (*io.SectionReader, error) {
info, err := file.Stat()
if err != nil {
return nil, err
}
return io.NewSectionReader(file, 0, info.Size()), nil
}
func newTempFiles() *tempFiles {
return &tempFiles{}
}
type tempFiles struct {
files []*os.File
filesMu sync.Mutex
}
func (tf *tempFiles) TempFile(dir, pattern string) (*os.File, error) {
f, err := ioutil.TempFile(dir, pattern)
if err != nil {
return nil, err
}
tf.filesMu.Lock()
tf.files = append(tf.files, f)
tf.filesMu.Unlock()
return f, nil
}
func (tf *tempFiles) CleanupAll() error {
tf.filesMu.Lock()
defer tf.filesMu.Unlock()
var allErr []error
for _, f := range tf.files {
if err := f.Close(); err != nil {
allErr = append(allErr, err)
}
if err := os.Remove(f.Name()); err != nil {
allErr = append(allErr, err)
}
}
tf.files = nil
return errorutil.Aggregate(allErr)
}
func newCountReader(r io.ReaderAt) (*countReader, error) {
pos := int64(0)
return &countReader{r: r, cPos: &pos}, nil
}
type countReader struct {
r io.ReaderAt
cPos *int64
mu sync.Mutex
}
func (cr *countReader) Read(p []byte) (int, error) {
cr.mu.Lock()
defer cr.mu.Unlock()
n, err := cr.r.ReadAt(p, *cr.cPos)
if err == nil {
*cr.cPos += int64(n)
}
return n, err
}
func (cr *countReader) Seek(offset int64, whence int) (int64, error) {
cr.mu.Lock()
defer cr.mu.Unlock()
switch whence {
default:
return 0, fmt.Errorf("Unknown whence: %v", whence)
case io.SeekStart:
case io.SeekCurrent:
offset += *cr.cPos
case io.SeekEnd:
return 0, fmt.Errorf("Unsupported whence: %v", whence)
}
if offset < 0 {
return 0, fmt.Errorf("invalid offset")
}
*cr.cPos = offset
return offset, nil
}
func (cr *countReader) currentPos() int64 {
cr.mu.Lock()
defer cr.mu.Unlock()
return *cr.cPos
}

View File

@ -0,0 +1,40 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package errorutil
import (
"errors"
"fmt"
"strings"
)
// Aggregate combines a list of errors into a single new error.
func Aggregate(errs []error) error {
switch len(errs) {
case 0:
return nil
case 1:
return errs[0]
default:
points := make([]string, len(errs)+1)
points[0] = fmt.Sprintf("%d error(s) occurred:", len(errs))
for i, err := range errs {
points[i+1] = fmt.Sprintf("* %s", err)
}
return errors.New(strings.Join(points, "\n\t"))
}
}

View File

@ -14,21 +14,13 @@
limitations under the License.
*/
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
/*
Copyright 2019 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
*/
// The stargz package reads & writes tar.gz ("tarball") files in a
// seekable, indexed format call "stargz". A stargz file is still a
// valid tarball, but it's slightly bigger with new gzip streams for
// each new file & throughout large files, and has an index in a magic
// file at the end.
package stargz
// Low-level components for building/parsing eStargz.
// This is the modified version of stargz library (https://github.com/google/crfs)
// following eStargz specification.
package estargz
import (
"archive/tar"
@ -47,51 +39,19 @@ import (
"sort"
"strconv"
"strings"
"sync"
"time"
"github.com/hashicorp/go-multierror"
"github.com/containerd/stargz-snapshotter/estargz/errorutil"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
)
// TOCTarName is the name of the JSON file in the tar archive in the
// table of contents gzip stream.
const TOCTarName = "stargz.index.json"
// FooterSize is the number of bytes in the footer
//
// The footer is an empty gzip stream with no compression and an Extra
// header of the form "%016xSTARGZ", where the 64 bit hex-encoded
// number is the offset to the gzip stream of JSON TOC.
//
// 51 comes from:
//
// 10 bytes gzip header
// 2 bytes XLEN (length of Extra field) = 26 (4 bytes header + 16 hex digits + len("STARGZ"))
// 2 bytes Extra: SI1 = 'S', SI2 = 'G'
// 2 bytes Extra: LEN = 22 (16 hex digits + len("STARGZ"))
// 22 bytes Extra: subfield = fmt.Sprintf("%016xSTARGZ", offsetOfTOC)
// 5 bytes flate header
// 8 bytes gzip footer
// (End of the eStargz blob)
//
// NOTE: For Extra fields, subfield IDs SI1='S' SI2='G' is used for eStargz.
const FooterSize = 51
// legacyFooterSize is the number of bytes in the legacy stargz footer.
//
// 47 comes from:
//
// 10 byte gzip header +
// 2 byte (LE16) length of extra, encoding 22 (16 hex digits + len("STARGZ")) == "\x16\x00" +
// 22 bytes of extra (fmt.Sprintf("%016xSTARGZ", tocGzipOffset))
// 5 byte flate header
// 8 byte gzip footer (two little endian uint32s: digest, size)
const legacyFooterSize = 47
// A Reader permits random access reads from a stargz file.
type Reader struct {
sr *io.SectionReader
toc *jtoc
sr *io.SectionReader
toc *jtoc
tocDigest digest.Digest
// m stores all non-chunk entries, keyed by name.
m map[string]*TOCEntry
@ -125,11 +85,12 @@ func Open(sr *io.SectionReader) (*Reader, error) {
if h.Name != TOCTarName {
return nil, fmt.Errorf("TOC tar entry had name %q; expected %q", h.Name, TOCTarName)
}
dgstr := digest.Canonical.Digester()
toc := new(jtoc)
if err := json.NewDecoder(tr).Decode(&toc); err != nil {
if err := json.NewDecoder(io.TeeReader(tr, dgstr.Hash())).Decode(&toc); err != nil {
return nil, fmt.Errorf("error decoding TOC JSON: %v", err)
}
r := &Reader{sr: sr, toc: toc}
r := &Reader{sr: sr, toc: toc, tocDigest: dgstr.Digest()}
if err := r.initFields(); err != nil {
return nil, fmt.Errorf("failed to initialize fields of entries: %v", err)
}
@ -150,165 +111,6 @@ func OpenFooter(sr *io.SectionReader) (tocOffset int64, footerSize int64, rErr e
return parseFooter(footer[:])
}
// TOCEntry is an entry in the stargz file's TOC (Table of Contents).
type TOCEntry struct {
// Name is the tar entry's name. It is the complete path
// stored in the tar file, not just the base name.
Name string `json:"name"`
// Type is one of "dir", "reg", "symlink", "hardlink", "char",
// "block", "fifo", or "chunk".
// The "chunk" type is used for regular file data chunks past the first
// TOCEntry; the 2nd chunk and on have only Type ("chunk"), Offset,
// ChunkOffset, and ChunkSize populated.
Type string `json:"type"`
// Size, for regular files, is the logical size of the file.
Size int64 `json:"size,omitempty"`
// ModTime3339 is the modification time of the tar entry. Empty
// means zero or unknown. Otherwise it's in UTC RFC3339
// format. Use the ModTime method to access the time.Time value.
ModTime3339 string `json:"modtime,omitempty"`
modTime time.Time
// LinkName, for symlinks and hardlinks, is the link target.
LinkName string `json:"linkName,omitempty"`
// Mode is the permission and mode bits.
Mode int64 `json:"mode,omitempty"`
// UID is the user ID of the owner.
UID int `json:"uid,omitempty"`
// GID is the group ID of the owner.
GID int `json:"gid,omitempty"`
// Uname is the username of the owner.
//
// In the serialized JSON, this field may only be present for
// the first entry with the same UID.
Uname string `json:"userName,omitempty"`
// Gname is the group name of the owner.
//
// In the serialized JSON, this field may only be present for
// the first entry with the same GID.
Gname string `json:"groupName,omitempty"`
// Offset, for regular files, provides the offset in the
// stargz file to the file's data bytes. See ChunkOffset and
// ChunkSize.
Offset int64 `json:"offset,omitempty"`
nextOffset int64 // the Offset of the next entry with a non-zero Offset
// DevMajor is the major device number for "char" and "block" types.
DevMajor int `json:"devMajor,omitempty"`
// DevMinor is the major device number for "char" and "block" types.
DevMinor int `json:"devMinor,omitempty"`
// NumLink is the number of entry names pointing to this entry.
// Zero means one name references this entry.
NumLink int
// Xattrs are the extended attribute for the entry.
Xattrs map[string][]byte `json:"xattrs,omitempty"`
// Digest stores the OCI checksum for regular files payload.
// It has the form "sha256:abcdef01234....".
Digest string `json:"digest,omitempty"`
// ChunkOffset is non-zero if this is a chunk of a large,
// regular file. If so, the Offset is where the gzip header of
// ChunkSize bytes at ChunkOffset in Name begin.
//
// In serialized form, a "chunkSize" JSON field of zero means
// that the chunk goes to the end of the file. After reading
// from the stargz TOC, though, the ChunkSize is initialized
// to a non-zero file for when Type is either "reg" or
// "chunk".
ChunkOffset int64 `json:"chunkOffset,omitempty"`
ChunkSize int64 `json:"chunkSize,omitempty"`
children map[string]*TOCEntry
}
// ModTime returns the entry's modification time.
func (e *TOCEntry) ModTime() time.Time { return e.modTime }
// NextOffset returns the position (relative to the start of the
// stargz file) of the next gzip boundary after e.Offset.
func (e *TOCEntry) NextOffset() int64 { return e.nextOffset }
func (e *TOCEntry) addChild(baseName string, child *TOCEntry) {
if e.children == nil {
e.children = make(map[string]*TOCEntry)
}
if child.Type == "dir" {
e.NumLink++ // Entry ".." in the subdirectory links to this directory
}
e.children[baseName] = child
}
// isDataType reports whether TOCEntry is a regular file or chunk (something that
// contains regular file data).
func (e *TOCEntry) isDataType() bool { return e.Type == "reg" || e.Type == "chunk" }
// jtoc is the JSON-serialized table of contents index of the files in the stargz file.
type jtoc struct {
Version int `json:"version"`
Entries []*TOCEntry `json:"entries"`
}
// Stat returns a FileInfo value representing e.
func (e *TOCEntry) Stat() os.FileInfo { return fileInfo{e} }
// ForeachChild calls f for each child item. If f returns false, iteration ends.
// If e is not a directory, f is not called.
func (e *TOCEntry) ForeachChild(f func(baseName string, ent *TOCEntry) bool) {
for name, ent := range e.children {
if !f(name, ent) {
return
}
}
}
// LookupChild returns the directory e's child by its base name.
func (e *TOCEntry) LookupChild(baseName string) (child *TOCEntry, ok bool) {
child, ok = e.children[baseName]
return
}
// fileInfo implements os.FileInfo using the wrapped *TOCEntry.
type fileInfo struct{ e *TOCEntry }
var _ os.FileInfo = fileInfo{}
func (fi fileInfo) Name() string { return path.Base(fi.e.Name) }
func (fi fileInfo) IsDir() bool { return fi.e.Type == "dir" }
func (fi fileInfo) Size() int64 { return fi.e.Size }
func (fi fileInfo) ModTime() time.Time { return fi.e.ModTime() }
func (fi fileInfo) Sys() interface{} { return fi.e }
func (fi fileInfo) Mode() (m os.FileMode) {
m = os.FileMode(fi.e.Mode) & os.ModePerm
switch fi.e.Type {
case "dir":
m |= os.ModeDir
case "symlink":
m |= os.ModeSymlink
case "char":
m |= os.ModeDevice | os.ModeCharDevice
case "block":
m |= os.ModeDevice
case "fifo":
m |= os.ModeNamedPipe
}
// TODO: ModeSetuid, ModeSetgid, if/as needed.
return m
}
// initFields populates the Reader from r.toc after decoding it from
// JSON.
//
@ -322,7 +124,7 @@ func (r *Reader) initFields() error {
gname := map[int]string{}
var lastRegEnt *TOCEntry
for _, ent := range r.toc.Entries {
ent.Name = strings.TrimPrefix(ent.Name, "./")
ent.Name = trimNamePrefix(ent.Name)
if ent.Type == "reg" {
lastRegEnt = ent
}
@ -389,7 +191,7 @@ func (r *Reader) initFields() error {
pdir := r.getOrCreateDir(parentDir(name))
ent.NumLink++ // at least one name(ent.Name) references this entry.
if ent.Type == "hardlink" {
if org, ok := r.m[ent.LinkName]; ok {
if org, ok := r.m[trimNamePrefix(ent.LinkName)]; ok {
org.NumLink++ // original entry is referenced by this ent.Name.
ent = org
} else {
@ -436,6 +238,63 @@ func (r *Reader) getOrCreateDir(d string) *TOCEntry {
return e
}
// VerifyTOC checks that the TOC JSON in the passed blob matches the
// passed digests and that the TOC JSON contains digests for all chunks
// contained in the blob. If the verification succceeds, this function
// returns TOCEntryVerifier which holds all chunk digests in the stargz blob.
func (r *Reader) VerifyTOC(tocDigest digest.Digest) (TOCEntryVerifier, error) {
// Verify the digest of TOC JSON
if r.tocDigest != tocDigest {
return nil, fmt.Errorf("invalid TOC JSON %q; want %q", r.tocDigest, tocDigest)
}
digestMap := make(map[int64]digest.Digest) // map from chunk offset to the digest
for _, e := range r.toc.Entries {
if e.Type == "reg" || e.Type == "chunk" {
if e.Type == "reg" && e.Size == 0 {
continue // ignores empty file
}
// offset must be unique in stargz blob
if _, ok := digestMap[e.Offset]; ok {
return nil, fmt.Errorf("offset %d found twice", e.Offset)
}
// all chunk entries must contain digest
if e.ChunkDigest == "" {
return nil, fmt.Errorf("ChunkDigest of %q(off=%d) not found in TOC JSON",
e.Name, e.Offset)
}
d, err := digest.Parse(e.ChunkDigest)
if err != nil {
return nil, errors.Wrapf(err, "failed to parse digest %q", e.ChunkDigest)
}
digestMap[e.Offset] = d
}
}
return &verifier{digestMap: digestMap}, nil
}
// verifier is an implementation of TOCEntryVerifier which holds verifiers keyed by
// offset of the chunk.
type verifier struct {
digestMap map[int64]digest.Digest
digestMapMu sync.Mutex
}
// Verifier returns a content verifier specified by TOCEntry.
func (v *verifier) Verifier(ce *TOCEntry) (digest.Verifier, error) {
v.digestMapMu.Lock()
defer v.digestMapMu.Unlock()
d, ok := v.digestMap[ce.Offset]
if !ok {
return nil, fmt.Errorf("verifier for offset=%d,size=%d hasn't been registered",
ce.Offset, ce.ChunkSize)
}
return d.Verifier(), nil
}
// ChunkEntryForOffset returns the TOCEntry containing the byte of the
// named file at the given offset within the file.
func (r *Reader) ChunkEntryForOffset(name string, offset int64) (e *TOCEntry, ok bool) {
@ -578,10 +437,11 @@ type Writer struct {
toc *jtoc
diffHash hash.Hash // SHA-256 of uncompressed tar
closed bool
gz *gzip.Writer
lastUsername map[int]string
lastGroupname map[int]string
closed bool
gz *gzip.Writer
lastUsername map[int]string
lastGroupname map[int]string
compressionLevel int
// ChunkSize optionally controls the maximum number of bytes
// of data of a regular file that can be written in one gzip
@ -613,64 +473,73 @@ func (w *Writer) chunkSize() int {
//
// The writer must be closed to write its trailing table of contents.
func NewWriter(w io.Writer) *Writer {
return NewWriterLevel(w, gzip.BestCompression)
}
// NewWriterLevel returns a new stargz writer writing to w.
// The compression level is configurable.
//
// The writer must be closed to write its trailing table of contents.
func NewWriterLevel(w io.Writer, compressionLevel int) *Writer {
bw := bufio.NewWriter(w)
cw := &countWriter{w: bw}
return &Writer{
bw: bw,
cw: cw,
toc: &jtoc{Version: 1},
diffHash: sha256.New(),
bw: bw,
cw: cw,
toc: &jtoc{Version: 1},
diffHash: sha256.New(),
compressionLevel: compressionLevel,
}
}
// Close writes the stargz's table of contents and flushes all the
// buffers, returning any error.
func (w *Writer) Close() error {
func (w *Writer) Close() (digest.Digest, error) {
if w.closed {
return nil
return "", nil
}
defer func() { w.closed = true }()
if err := w.closeGz(); err != nil {
return err
return "", err
}
// Write the TOC index.
tocOff := w.cw.n
w.gz, _ = gzip.NewWriterLevel(w.cw, gzip.BestCompression)
w.gz, _ = gzip.NewWriterLevel(w.cw, w.compressionLevel)
tw := tar.NewWriter(currentGzipWriter{w})
tocJSON, err := json.MarshalIndent(w.toc, "", "\t")
if err != nil {
return err
return "", err
}
if err := tw.WriteHeader(&tar.Header{
Typeflag: tar.TypeReg,
Name: TOCTarName,
Size: int64(len(tocJSON)),
}); err != nil {
return err
return "", err
}
if _, err := tw.Write(tocJSON); err != nil {
return err
return "", err
}
if err := tw.Close(); err != nil {
return err
return "", err
}
if err := w.closeGz(); err != nil {
return err
return "", err
}
// And a little footer with pointer to the TOC gzip stream.
if _, err := w.bw.Write(FooterBytes(tocOff)); err != nil {
return err
if _, err := w.bw.Write(footerBytes(tocOff)); err != nil {
return "", err
}
if err := w.bw.Flush(); err != nil {
return err
return "", err
}
return nil
return digest.FromBytes(tocJSON), nil
}
func (w *Writer) closeGz() error {
@ -704,7 +573,7 @@ func (w *Writer) nameIfChanged(mp *map[int]string, id int, name string) string {
func (w *Writer) condOpenGz() {
if w.gz == nil {
w.gz, _ = gzip.NewWriterLevel(w.cw, gzip.BestCompression)
w.gz, _ = gzip.NewWriterLevel(w.cw, w.compressionLevel)
}
}
@ -791,16 +660,16 @@ func (w *Writer) AppendTar(r io.Reader) error {
// We need to keep a reference to the TOC entry for regular files, so that we
// can fill the digest later.
var regFileEntry *TOCEntry
var payloadDigest hash.Hash
var payloadDigest digest.Digester
if h.Typeflag == tar.TypeReg {
regFileEntry = ent
payloadDigest = sha256.New()
payloadDigest = digest.Canonical.Digester()
}
if h.Typeflag == tar.TypeReg && ent.Size > 0 {
var written int64
totalSize := ent.Size // save it before we destroy ent
tee := io.TeeReader(tr, payloadDigest)
tee := io.TeeReader(tr, payloadDigest.Hash())
for written < totalSize {
if err := w.closeGz(); err != nil {
return err
@ -815,12 +684,15 @@ func (w *Writer) AppendTar(r io.Reader) error {
}
ent.Offset = w.cw.n
ent.ChunkOffset = written
chunkDigest := digest.Canonical.Digester()
w.condOpenGz()
if _, err := io.CopyN(tw, tee, chunkSize); err != nil {
teeChunk := io.TeeReader(tee, chunkDigest.Hash())
if _, err := io.CopyN(tw, teeChunk, chunkSize); err != nil {
return fmt.Errorf("error copying %q: %v", h.Name, err)
}
ent.ChunkDigest = chunkDigest.Digest().String()
w.toc.Entries = append(w.toc.Entries, ent)
written += chunkSize
ent = &TOCEntry{
@ -832,7 +704,7 @@ func (w *Writer) AppendTar(r io.Reader) error {
w.toc.Entries = append(w.toc.Entries, ent)
}
if payloadDigest != nil {
regFileEntry.Digest = fmt.Sprintf("sha256:%x", payloadDigest.Sum(nil))
regFileEntry.Digest = payloadDigest.Digest().String()
}
if err := tw.Flush(); err != nil {
return err
@ -847,10 +719,10 @@ func (w *Writer) DiffID() string {
return fmt.Sprintf("sha256:%x", w.diffHash.Sum(nil))
}
// FooterBytes returns the 51 bytes footer.
func FooterBytes(tocOff int64) []byte {
// footerBytes returns the 51 bytes footer.
func footerBytes(tocOff int64) []byte {
buf := bytes.NewBuffer(make([]byte, 0, FooterSize))
gz, _ := gzip.NewWriterLevel(buf, gzip.NoCompression)
gz, _ := gzip.NewWriterLevel(buf, gzip.NoCompression) // MUST be NoCompression to keep 51 bytes
// Extra header indicating the offset of TOCJSON
// https://tools.ietf.org/html/rfc1952#section-2.3.1.1
@ -867,11 +739,13 @@ func FooterBytes(tocOff int64) []byte {
}
func parseFooter(p []byte) (tocOffset int64, footerSize int64, rErr error) {
var allErr []error
tocOffset, err := parseEStargzFooter(p)
if err == nil {
return tocOffset, FooterSize, nil
}
rErr = multierror.Append(rErr, err)
allErr = append(allErr, err)
pad := len(p) - legacyFooterSize
if pad < 0 {
@ -881,8 +755,7 @@ func parseFooter(p []byte) (tocOffset int64, footerSize int64, rErr error) {
if err == nil {
return tocOffset, legacyFooterSize, nil
}
rErr = multierror.Append(rErr, err)
return
return 0, 0, errorutil.Aggregate(append(allErr, err))
}
func parseEStargzFooter(p []byte) (tocOffset int64, err error) {
@ -932,6 +805,11 @@ func formatModtime(t time.Time) string {
return t.UTC().Round(time.Second).Format(time.RFC3339)
}
func trimNamePrefix(name string) string {
// We don't use filepath.Clean here to preserve "/" suffix for directory entry.
return strings.TrimPrefix(name, "./")
}
// countWriter counts how many bytes have been written to its wrapped
// io.Writer.
type countWriter struct {

View File

@ -0,0 +1,9 @@
module github.com/containerd/stargz-snapshotter/estargz
go 1.13
require (
github.com/opencontainers/go-digest v1.0.0
github.com/pkg/errors v0.9.1
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
)

View File

@ -0,0 +1,6 @@
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a h1:DcqTD9SDLc+1P/r1EmRBwnVsrOwW+kk2vWf9n+1sGhs=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

View File

@ -1,158 +0,0 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package estargz
import (
"archive/tar"
"bytes"
"compress/gzip"
"encoding/json"
"fmt"
"io"
"github.com/containerd/stargz-snapshotter/estargz/stargz"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
)
// parseStargz parses the footer and TOCJSON of the stargz file
func parseStargz(sgz *io.SectionReader) (blob *stargzBlob, err error) {
// Parse stargz footer and get the offset of TOC JSON
tocOffset, footerSize, err := stargz.OpenFooter(sgz)
if err != nil {
return nil, errors.Wrapf(err, "failed to parse footer")
}
// Decode the TOC JSON
tocReader := io.NewSectionReader(sgz, tocOffset, sgz.Size()-tocOffset-footerSize)
zr, err := gzip.NewReader(tocReader)
if err != nil {
return nil, errors.Wrap(err, "failed to uncompress TOC JSON targz entry")
}
tr := tar.NewReader(zr)
h, err := tr.Next()
if err != nil {
return nil, errors.Wrap(err, "failed to get TOC JSON tar entry")
} else if h.Name != stargz.TOCTarName {
return nil, fmt.Errorf("invalid TOC JSON tar entry name %q; must be %q",
h.Name, stargz.TOCTarName)
}
dgstr := digest.Canonical.Digester()
decodedJTOC := new(jtoc)
if err := json.NewDecoder(io.TeeReader(tr, dgstr.Hash())).Decode(&decodedJTOC); err != nil {
return nil, errors.Wrap(err, "failed to decode TOC JSON")
}
if _, err := tr.Next(); err != io.EOF {
// We only accept stargz file that its TOC JSON resides at the end of that
// file to avoid changing the offsets of the following file entries by
// rewriting TOC JSON (The official stargz lib also puts TOC JSON at the end
// of the stargz file at this mement).
// TODO: in the future, we should relax this restriction.
return nil, errors.New("TOC JSON must reside at the end of targz")
}
return &stargzBlob{
jtoc: decodedJTOC,
jtocDigest: dgstr.Digest(),
jtocOffset: tocOffset,
payload: io.NewSectionReader(sgz, 0, tocOffset),
footer: bytes.NewReader(stargz.FooterBytes(tocOffset)),
}, nil
}
// combineBlobs combines passed stargz blobs and returns one reader of stargz.
func combineBlobs(sgz ...*io.SectionReader) (newSgz io.Reader, tocDgst digest.Digest, err error) {
if len(sgz) == 0 {
return nil, "", fmt.Errorf("at least one reader must be passed")
}
var blobs []*stargzBlob
for _, r := range sgz {
blob, err := parseStargz(r)
if err != nil {
return nil, "", errors.Wrapf(err, "failed to parse stargz")
}
blobs = append(blobs, blob)
}
var (
mjtoc = new(jtoc)
mpayload []io.Reader
currentOffset int64
)
mjtoc.Version = blobs[0].jtoc.Version
for _, b := range blobs {
for _, e := range b.jtoc.Entries {
// Recalculate Offset of non-empty files/chunks
if (e.Type == "reg" && e.Size > 0) || e.Type == "chunk" {
e.Offset += currentOffset
}
mjtoc.Entries = append(mjtoc.Entries, e)
}
if b.jtoc.Version < mjtoc.Version {
mjtoc.Version = b.jtoc.Version
}
mpayload = append(mpayload, b.payload)
currentOffset += b.jtocOffset
}
tocjson, tocDgst, err := marshalTOCJSON(mjtoc)
if err != nil {
return nil, "", err
}
return io.MultiReader(
io.MultiReader(mpayload...),
tocjson,
bytes.NewReader(stargz.FooterBytes(currentOffset)),
), tocDgst, nil
}
// marshalTOCJSON marshals TOCJSON and returns a reader of the bytes.
func marshalTOCJSON(toc *jtoc) (io.Reader, digest.Digest, error) {
tocJSON, err := json.Marshal(*toc)
if err != nil {
return nil, "", errors.Wrap(err, "failed to marshal TOC JSON")
}
pr, pw := io.Pipe()
go func() {
zw, err := gzip.NewWriterLevel(pw, gzip.BestCompression)
if err != nil {
pw.CloseWithError(err)
return
}
tw := tar.NewWriter(zw)
if err := tw.WriteHeader(&tar.Header{
Typeflag: tar.TypeReg,
Name: stargz.TOCTarName,
Size: int64(len(tocJSON)),
}); err != nil {
pw.CloseWithError(err)
return
}
if _, err := tw.Write(tocJSON); err != nil {
pw.CloseWithError(err)
return
}
if err := tw.Close(); err != nil {
pw.CloseWithError(err)
return
}
if err := zw.Close(); err != nil {
pw.CloseWithError(err)
return
}
pw.Close()
}()
return pr, digest.FromBytes(tocJSON), nil
}

View File

@ -14,16 +14,58 @@
limitations under the License.
*/
/*
Copyright 2019 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file.
*/
package estargz
import (
"io"
"os"
"path"
"time"
"github.com/containerd/stargz-snapshotter/estargz/stargz"
digest "github.com/opencontainers/go-digest"
)
const (
// TOCTarName is the name of the JSON file in the tar archive in the
// table of contents gzip stream.
TOCTarName = "stargz.index.json"
// FooterSize is the number of bytes in the footer
//
// The footer is an empty gzip stream with no compression and an Extra
// header of the form "%016xSTARGZ", where the 64 bit hex-encoded
// number is the offset to the gzip stream of JSON TOC.
//
// 51 comes from:
//
// 10 bytes gzip header
// 2 bytes XLEN (length of Extra field) = 26 (4 bytes header + 16 hex digits + len("STARGZ"))
// 2 bytes Extra: SI1 = 'S', SI2 = 'G'
// 2 bytes Extra: LEN = 22 (16 hex digits + len("STARGZ"))
// 22 bytes Extra: subfield = fmt.Sprintf("%016xSTARGZ", offsetOfTOC)
// 5 bytes flate header
// 8 bytes gzip footer
// (End of the eStargz blob)
//
// NOTE: For Extra fields, subfield IDs SI1='S' SI2='G' is used for eStargz.
FooterSize = 51
// legacyFooterSize is the number of bytes in the legacy stargz footer.
//
// 47 comes from:
//
// 10 byte gzip header +
// 2 byte (LE16) length of extra, encoding 22 (16 hex digits + len("STARGZ")) == "\x16\x00" +
// 22 bytes of extra (fmt.Sprintf("%016xSTARGZ", tocGzipOffset))
// 5 byte flate header
// 8 byte gzip footer (two little endian uint32s: digest, size)
legacyFooterSize = 47
// TOCJSONDigestAnnotation is an annotation for image manifest. This stores the
// digest of the TOC JSON
TOCJSONDigestAnnotation = "containerd.io/snapshot/stargz/toc.digest"
@ -35,44 +77,178 @@ const (
// NoPrefetchLandmark is a file entry which indicates that no prefetch should
// occur in the stargz file.
NoPrefetchLandmark = ".no.prefetch.landmark"
landmarkContents = 0xf
)
// jtoc is a TOC JSON schema which contains additional fields for chunk-level
// content verification.
// jtoc is the JSON-serialized table of contents index of the files in the stargz file.
type jtoc struct {
// Version is a field to store the version information of TOC JSON.
Version int `json:"version"`
// Entries is a field to store TOCEntries in this archive. These TOCEntries
// are extended in this package for content verification.
Version int `json:"version"`
Entries []*TOCEntry `json:"entries"`
}
// TOCEntry extends stargz.TOCEntry with an additional field for storing chunks
// digests.
// TOCEntry is an entry in the stargz file's TOC (Table of Contents).
type TOCEntry struct {
stargz.TOCEntry
// Name is the tar entry's name. It is the complete path
// stored in the tar file, not just the base name.
Name string `json:"name"`
// Type is one of "dir", "reg", "symlink", "hardlink", "char",
// "block", "fifo", or "chunk".
// The "chunk" type is used for regular file data chunks past the first
// TOCEntry; the 2nd chunk and on have only Type ("chunk"), Offset,
// ChunkOffset, and ChunkSize populated.
Type string `json:"type"`
// Size, for regular files, is the logical size of the file.
Size int64 `json:"size,omitempty"`
// ModTime3339 is the modification time of the tar entry. Empty
// means zero or unknown. Otherwise it's in UTC RFC3339
// format. Use the ModTime method to access the time.Time value.
ModTime3339 string `json:"modtime,omitempty"`
modTime time.Time
// LinkName, for symlinks and hardlinks, is the link target.
LinkName string `json:"linkName,omitempty"`
// Mode is the permission and mode bits.
Mode int64 `json:"mode,omitempty"`
// UID is the user ID of the owner.
UID int `json:"uid,omitempty"`
// GID is the group ID of the owner.
GID int `json:"gid,omitempty"`
// Uname is the username of the owner.
//
// In the serialized JSON, this field may only be present for
// the first entry with the same UID.
Uname string `json:"userName,omitempty"`
// Gname is the group name of the owner.
//
// In the serialized JSON, this field may only be present for
// the first entry with the same GID.
Gname string `json:"groupName,omitempty"`
// Offset, for regular files, provides the offset in the
// stargz file to the file's data bytes. See ChunkOffset and
// ChunkSize.
Offset int64 `json:"offset,omitempty"`
nextOffset int64 // the Offset of the next entry with a non-zero Offset
// DevMajor is the major device number for "char" and "block" types.
DevMajor int `json:"devMajor,omitempty"`
// DevMinor is the major device number for "char" and "block" types.
DevMinor int `json:"devMinor,omitempty"`
// NumLink is the number of entry names pointing to this entry.
// Zero means one name references this entry.
NumLink int
// Xattrs are the extended attribute for the entry.
Xattrs map[string][]byte `json:"xattrs,omitempty"`
// Digest stores the OCI checksum for regular files payload.
// It has the form "sha256:abcdef01234....".
Digest string `json:"digest,omitempty"`
// ChunkOffset is non-zero if this is a chunk of a large,
// regular file. If so, the Offset is where the gzip header of
// ChunkSize bytes at ChunkOffset in Name begin.
//
// In serialized form, a "chunkSize" JSON field of zero means
// that the chunk goes to the end of the file. After reading
// from the stargz TOC, though, the ChunkSize is initialized
// to a non-zero file for when Type is either "reg" or
// "chunk".
ChunkOffset int64 `json:"chunkOffset,omitempty"`
ChunkSize int64 `json:"chunkSize,omitempty"`
// ChunkDigest stores an OCI digest of the chunk. This must be formed
// as "sha256:0123abcd...".
ChunkDigest string `json:"chunkDigest,omitempty"`
children map[string]*TOCEntry
}
// stargzBlob is a structured view of a eStargz blob
type stargzBlob struct {
// jtoc is a decoded TOC JSON struct
jtoc *jtoc
// ModTime returns the entry's modification time.
func (e *TOCEntry) ModTime() time.Time { return e.modTime }
// jtocDigest is OCI digest of TOC JSON. formed as "sha256:abcd1234..."
jtocDigest digest.Digest
// NextOffset returns the position (relative to the start of the
// stargz file) of the next gzip boundary after e.Offset.
func (e *TOCEntry) NextOffset() int64 { return e.nextOffset }
// jtocOffset is the offset of TOC JSON in the stargz blob.
jtocOffset int64
// payload is a reader of the blob but doesn't contain TOC JSON and footer.
payload io.ReadSeeker
// footer is the footer defined by stargz, which contains the offset to TOC JSON.
footer io.ReadSeeker
func (e *TOCEntry) addChild(baseName string, child *TOCEntry) {
if e.children == nil {
e.children = make(map[string]*TOCEntry)
}
if child.Type == "dir" {
e.NumLink++ // Entry ".." in the subdirectory links to this directory
}
e.children[baseName] = child
}
// isDataType reports whether TOCEntry is a regular file or chunk (something that
// contains regular file data).
func (e *TOCEntry) isDataType() bool { return e.Type == "reg" || e.Type == "chunk" }
// Stat returns a FileInfo value representing e.
func (e *TOCEntry) Stat() os.FileInfo { return fileInfo{e} }
// ForeachChild calls f for each child item. If f returns false, iteration ends.
// If e is not a directory, f is not called.
func (e *TOCEntry) ForeachChild(f func(baseName string, ent *TOCEntry) bool) {
for name, ent := range e.children {
if !f(name, ent) {
return
}
}
}
// LookupChild returns the directory e's child by its base name.
func (e *TOCEntry) LookupChild(baseName string) (child *TOCEntry, ok bool) {
child, ok = e.children[baseName]
return
}
// fileInfo implements os.FileInfo using the wrapped *TOCEntry.
type fileInfo struct{ e *TOCEntry }
var _ os.FileInfo = fileInfo{}
func (fi fileInfo) Name() string { return path.Base(fi.e.Name) }
func (fi fileInfo) IsDir() bool { return fi.e.Type == "dir" }
func (fi fileInfo) Size() int64 { return fi.e.Size }
func (fi fileInfo) ModTime() time.Time { return fi.e.ModTime() }
func (fi fileInfo) Sys() interface{} { return fi.e }
func (fi fileInfo) Mode() (m os.FileMode) {
m = os.FileMode(fi.e.Mode) & os.ModePerm
switch fi.e.Type {
case "dir":
m |= os.ModeDir
case "symlink":
m |= os.ModeSymlink
case "char":
m |= os.ModeDevice | os.ModeCharDevice
case "block":
m |= os.ModeDevice
case "fifo":
m |= os.ModeNamedPipe
}
// TODO: ModeSetuid, ModeSetgid, if/as needed.
return m
}
// TOCEntryVerifier holds verifiers that are usable for verifying chunks contained
// in a eStargz blob.
type TOCEntryVerifier interface {
// Verifier provides a content verifier that can be used for verifying the
// contents of the specified TOCEntry.
Verifier(ce *TOCEntry) (digest.Verifier, error)
}

View File

@ -1,179 +0,0 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package estargz
import (
"compress/gzip"
"fmt"
"io"
"sync"
"github.com/containerd/stargz-snapshotter/estargz/stargz"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
)
// newVerifiableStargz takes stargz archive and returns modified one which contains
// contents digests in the TOC JSON. This also returns the digest of TOC JSON
// itself which can be used for verifying the TOC JSON.
func newVerifiableStargz(sgz *io.SectionReader) (io.Reader, digest.Digest, error) {
// Extract TOC JSON and some related parts
blob, err := parseStargz(sgz)
if err != nil {
return nil, "", errors.Wrap(err, "failed to extract TOC JSON")
}
// Rewrite the original TOC JSON with chunks digests
if err := addDigests(blob.jtoc, sgz); err != nil {
return nil, "", errors.Wrap(err, "failed to digest stargz")
}
tocJSON, tocDigest, err := marshalTOCJSON(blob.jtoc)
if err != nil {
return nil, "", errors.Wrap(err, "failed to marshal TOC JSON")
}
// Reconstruct stargz file with the modified TOC JSON
if _, err := blob.payload.Seek(0, io.SeekStart); err != nil {
return nil, "", errors.Wrap(err, "failed to reset the seek position of stargz")
}
if _, err := blob.footer.Seek(0, io.SeekStart); err != nil {
return nil, "", errors.Wrap(err, "failed to reset the seek position of footer")
}
return io.MultiReader(
blob.payload, // Original stargz (before TOC JSON)
tocJSON, // Rewritten TOC JSON
blob.footer, // Unmodified footer (because tocOffset is unchanged)
), tocDigest, nil
}
// VerifyStargzTOC checks that the TOC JSON in the passed stargz blob matches the
// passed digests and that the TOC JSON contains digests for all chunks
// contained in the stargz blob. If the verification succceeds, this function
// returns TOCEntryVerifier which holds all chunk digests in the stargz blob.
func VerifyStargzTOC(sgz *io.SectionReader, tocDigest digest.Digest) (TOCEntryVerifier, error) {
blob, err := parseStargz(sgz)
if err != nil {
return nil, errors.Wrap(err, "failed to extract TOC JSON")
}
// Verify the digest of TOC JSON
if blob.jtocDigest != tocDigest {
return nil, fmt.Errorf("invalid TOC JSON %q; want %q", blob.jtocDigest, tocDigest)
}
// Collect all chunks digests in this layer
digestMap := make(map[int64]digest.Digest) // map from chunk offset to the digest
for _, e := range blob.jtoc.Entries {
if e.Type == "reg" || e.Type == "chunk" {
if e.Type == "reg" && e.Size == 0 {
continue // ignores empty file
}
// offset must be unique in stargz blob
if _, ok := digestMap[e.Offset]; ok {
return nil, fmt.Errorf("offset %d found twice", e.Offset)
}
// all chunk entries must contain digest
if e.ChunkDigest == "" {
return nil, fmt.Errorf("ChunkDigest of %q(off=%d) not found in TOC JSON",
e.Name, e.Offset)
}
d, err := digest.Parse(e.ChunkDigest)
if err != nil {
return nil, errors.Wrapf(err, "failed to parse digest %q", e.ChunkDigest)
}
digestMap[e.Offset] = d
}
}
return &verifier{digestMap: digestMap}, nil
}
// TOCEntryVerifier holds verifiers that are usable for verifying chunks contained
// in a stargz blob.
type TOCEntryVerifier interface {
// Verifier provides a content verifier that can be used for verifying the
// contents of the specified TOCEntry.
Verifier(ce *stargz.TOCEntry) (digest.Verifier, error)
}
// verifier is an implementation of TOCEntryVerifier which holds verifiers keyed by
// offset of the chunk.
type verifier struct {
digestMap map[int64]digest.Digest
digestMapMu sync.Mutex
}
// Verifier returns a content verifier specified by TOCEntry.
func (v *verifier) Verifier(ce *stargz.TOCEntry) (digest.Verifier, error) {
v.digestMapMu.Lock()
defer v.digestMapMu.Unlock()
d, ok := v.digestMap[ce.Offset]
if !ok {
return nil, fmt.Errorf("verifier for offset=%d,size=%d hasn't been registered",
ce.Offset, ce.ChunkSize)
}
return d.Verifier(), nil
}
// addDigests calculates chunk digests and adds them to the TOC JSON
func addDigests(toc *jtoc, sgz *io.SectionReader) error {
var (
sizeMap = make(map[string]int64)
zr *gzip.Reader
err error
)
for _, e := range toc.Entries {
if e.Type == "reg" || e.Type == "chunk" {
if e.Type == "reg" {
sizeMap[e.Name] = e.Size // saves the file size for futural use
}
size := e.ChunkSize
if size == 0 {
// In the seriarized form, ChunkSize field of the last chunk in a file
// is zero so we need to calculate it.
size = sizeMap[e.Name] - e.ChunkOffset
}
if size > 0 {
if _, err := sgz.Seek(e.Offset, io.SeekStart); err != nil {
return errors.Wrapf(err, "failed to seek to %q", e.Name)
}
if zr == nil {
if zr, err = gzip.NewReader(sgz); err != nil {
return errors.Wrapf(err, "failed to decomp %q", e.Name)
}
} else {
if err := zr.Reset(sgz); err != nil {
return errors.Wrapf(err, "failed to decomp %q", e.Name)
}
}
dgstr := digest.Canonical.Digester()
if _, err := io.CopyN(dgstr.Hash(), zr, size); err != nil {
return errors.Wrapf(err, "failed to read %q; (file size: %d, e.Offset: %d, e.ChunkOffset: %d, chunk size: %d, end offset: %d, size of stargz file: %d)",
e.Name, sizeMap[e.Name], e.Offset, e.ChunkOffset, size,
e.Offset+size, sgz.Size())
}
e.ChunkDigest = dgstr.Digest().String()
}
}
}
return nil
}

View File

@ -57,7 +57,6 @@ import (
"github.com/containerd/containerd/remotes/docker"
"github.com/containerd/stargz-snapshotter/cache"
"github.com/containerd/stargz-snapshotter/estargz"
"github.com/containerd/stargz-snapshotter/estargz/stargz"
"github.com/containerd/stargz-snapshotter/fs/config"
"github.com/containerd/stargz-snapshotter/fs/reader"
"github.com/containerd/stargz-snapshotter/fs/remote"
@ -515,7 +514,7 @@ func (fs *filesystem) Unmount(ctx context.Context, mountpoint string) error {
return syscall.Unmount(mountpoint, syscall.MNT_FORCE)
}
func newLayer(desc ocispec.Descriptor, blob remote.Blob, vr reader.VerifiableReader, root *stargz.TOCEntry, prefetchTimeout time.Duration) *layer {
func newLayer(desc ocispec.Descriptor, blob remote.Blob, vr *reader.VerifiableReader, root *estargz.TOCEntry, prefetchTimeout time.Duration) *layer {
return &layer{
desc: desc,
blob: blob,
@ -529,35 +528,27 @@ func newLayer(desc ocispec.Descriptor, blob remote.Blob, vr reader.VerifiableRea
type layer struct {
desc ocispec.Descriptor
blob remote.Blob
verifiableReader reader.VerifiableReader
root *stargz.TOCEntry
verifiableReader *reader.VerifiableReader
root *estargz.TOCEntry
prefetchWaiter *waiter
prefetchTimeout time.Duration
verifier estargz.TOCEntryVerifier
r reader.Reader
}
func (l *layer) reader() (reader.Reader, error) {
if l.verifier == nil {
if l.r == nil {
return nil, fmt.Errorf("layer hasn't been verified yet")
}
return l.verifiableReader(l.verifier), nil
return l.r, nil
}
func (l *layer) skipVerify() {
l.verifier = nopTOCEntryVerifier{}
l.r = l.verifiableReader.SkipVerify()
}
func (l *layer) verify(tocDigest digest.Digest) error {
v, err := estargz.VerifyStargzTOC(io.NewSectionReader(
readerAtFunc(func(p []byte, offset int64) (n int, err error) {
return l.blob.ReadAt(p, offset)
}), 0, l.blob.Size()), tocDigest)
if err != nil {
return err
}
l.verifier = v
return nil
func (l *layer) verify(tocDigest digest.Digest) (err error) {
l.r, err = l.verifiableReader.VerifyTOC(tocDigest)
return
}
func (l *layer) prefetch(prefetchSize int64) error {
@ -584,7 +575,7 @@ func (l *layer) prefetch(prefetchSize int64) error {
}
// Cache uncompressed contents of the prefetched range
if err := lr.Cache(reader.WithFilter(func(e *stargz.TOCEntry) bool {
if err := lr.Cache(reader.WithFilter(func(e *estargz.TOCEntry) bool {
return e.Offset < prefetchSize // Cache only prefetch target
})); err != nil {
return errors.Wrap(err, "failed to cache prefetched layer")
@ -597,22 +588,6 @@ func (l *layer) waitForPrefetchCompletion() error {
return l.prefetchWaiter.wait(l.prefetchTimeout)
}
type nopTOCEntryVerifier struct{}
func (nev nopTOCEntryVerifier) Verifier(ce *stargz.TOCEntry) (digest.Verifier, error) {
return nopVerifier{}, nil
}
type nopVerifier struct{}
func (nv nopVerifier) Write(p []byte) (n int, err error) {
return len(p), nil
}
func (nv nopVerifier) Verified() bool {
return true
}
func newWaiter() *waiter {
return &waiter{
completionCond: sync.NewCond(&sync.Mutex{}),
@ -674,7 +649,7 @@ type node struct {
fusefs.Inode
fs *filesystem
layer fileReader
e *stargz.TOCEntry
e *estargz.TOCEntry
s *state
root string
opaque bool // true if this node is an overlayfs opaque directory
@ -686,9 +661,9 @@ var _ = (fusefs.NodeReaddirer)((*node)(nil))
func (n *node) Readdir(ctx context.Context) (fusefs.DirStream, syscall.Errno) {
var ents []fuse.DirEntry
whiteouts := map[string]*stargz.TOCEntry{}
whiteouts := map[string]*estargz.TOCEntry{}
normalEnts := map[string]bool{}
n.e.ForeachChild(func(baseName string, ent *stargz.TOCEntry) bool {
n.e.ForeachChild(func(baseName string, ent *estargz.TOCEntry) bool {
// We don't want to show prefetch landmarks in "/".
if n.e.Name == "" && (baseName == estargz.PrefetchLandmark || baseName == estargz.NoPrefetchLandmark) {
@ -849,7 +824,7 @@ func (n *node) Statfs(ctx context.Context, out *fuse.StatfsOut) syscall.Errno {
// file is a file abstraction which implements file handle in go-fuse.
type file struct {
n *node
e *stargz.TOCEntry
e *estargz.TOCEntry
ra io.ReaderAt
}
@ -874,7 +849,7 @@ func (f *file) Getattr(ctx context.Context, out *fuse.AttrOut) syscall.Errno {
// whiteout is a whiteout abstraction compliant to overlayfs.
type whiteout struct {
fusefs.Inode
e *stargz.TOCEntry
e *estargz.TOCEntry
}
var _ = (fusefs.NodeGetattrer)((*whiteout)(nil))
@ -1046,12 +1021,12 @@ func (sf *statFile) updateStatUnlocked() ([]byte, error) {
// inodeOfEnt calculates the inode number which is one-to-one conresspondence
// with the TOCEntry insntance.
func inodeOfEnt(e *stargz.TOCEntry) uint64 {
func inodeOfEnt(e *estargz.TOCEntry) uint64 {
return uint64(uintptr(unsafe.Pointer(e)))
}
// entryToAttr converts stargz's TOCEntry to go-fuse's Attr.
func entryToAttr(e *stargz.TOCEntry, out *fuse.Attr) fusefs.StableAttr {
func entryToAttr(e *estargz.TOCEntry, out *fuse.Attr) fusefs.StableAttr {
out.Ino = inodeOfEnt(e)
out.Size = uint64(e.Size)
out.Blksize = blockSize
@ -1080,7 +1055,7 @@ func entryToAttr(e *stargz.TOCEntry, out *fuse.Attr) fusefs.StableAttr {
}
// entryToWhAttr converts stargz's TOCEntry to go-fuse's Attr of whiteouts.
func entryToWhAttr(e *stargz.TOCEntry, out *fuse.Attr) fusefs.StableAttr {
func entryToWhAttr(e *estargz.TOCEntry, out *fuse.Attr) fusefs.StableAttr {
fi := e.Stat()
out.Ino = inodeOfEnt(e)
out.Size = 0
@ -1170,7 +1145,7 @@ func statFileToAttr(sf *statFile, size uint64, out *fuse.Attr) fusefs.StableAttr
}
// modeOfEntry gets system's mode bits from TOCEntry
func modeOfEntry(e *stargz.TOCEntry) uint32 {
func modeOfEntry(e *estargz.TOCEntry) uint32 {
// Permission bits
res := uint32(e.Stat().Mode() & os.ModePerm)

View File

@ -34,7 +34,7 @@ import (
"github.com/containerd/stargz-snapshotter/cache"
"github.com/containerd/stargz-snapshotter/estargz"
"github.com/containerd/stargz-snapshotter/estargz/stargz"
digest "github.com/opencontainers/go-digest"
"github.com/pkg/errors"
"golang.org/x/sync/errgroup"
"golang.org/x/sync/semaphore"
@ -42,18 +42,50 @@ import (
type Reader interface {
OpenFile(name string) (io.ReaderAt, error)
Lookup(name string) (*stargz.TOCEntry, bool)
Lookup(name string) (*estargz.TOCEntry, bool)
Cache(opts ...CacheOption) error
}
// VerifiableReader is a function that produces a Reader with a given verifier.
type VerifiableReader func(estargz.TOCEntryVerifier) Reader
// VerifiableReader produces a Reader with a given verifier.
type VerifiableReader struct {
r *reader
}
func (vr *VerifiableReader) SkipVerify() Reader {
vr.r.verifier = nopTOCEntryVerifier{}
return vr.r
}
func (vr *VerifiableReader) VerifyTOC(tocDigest digest.Digest) (Reader, error) {
v, err := vr.r.r.VerifyTOC(tocDigest)
if err != nil {
return nil, err
}
vr.r.verifier = v
return vr.r, nil
}
type nopTOCEntryVerifier struct{}
func (nev nopTOCEntryVerifier) Verifier(ce *estargz.TOCEntry) (digest.Verifier, error) {
return nopVerifier{}, nil
}
type nopVerifier struct{}
func (nv nopVerifier) Write(p []byte) (n int, err error) {
return len(p), nil
}
func (nv nopVerifier) Verified() bool {
return true
}
// NewReader creates a Reader based on the given stargz blob and cache implementation.
// It returns VerifiableReader so the caller must provide a estargz.TOCEntryVerifier
// to use for verifying file or chunk contained in this stargz blob.
func NewReader(sr *io.SectionReader, cache cache.BlobCache) (VerifiableReader, *stargz.TOCEntry, error) {
r, err := stargz.Open(sr)
func NewReader(sr *io.SectionReader, cache cache.BlobCache) (*VerifiableReader, *estargz.TOCEntry, error) {
r, err := estargz.Open(sr)
if err != nil {
return nil, nil, errors.Wrap(err, "failed to parse stargz")
}
@ -74,14 +106,11 @@ func NewReader(sr *io.SectionReader, cache cache.BlobCache) (VerifiableReader, *
},
}
return func(verifier estargz.TOCEntryVerifier) Reader {
vr.verifier = verifier
return vr
}, root, nil
return &VerifiableReader{vr}, root, nil
}
type reader struct {
r *stargz.Reader
r *estargz.Reader
sr *io.SectionReader
cache cache.BlobCache
bufPool sync.Pool
@ -107,7 +136,7 @@ func (gr *reader) OpenFile(name string) (io.ReaderAt, error) {
}, nil
}
func (gr *reader) Lookup(name string) (*stargz.TOCEntry, bool) {
func (gr *reader) Lookup(name string) (*estargz.TOCEntry, bool) {
return gr.r.Lookup(name)
}
@ -119,7 +148,7 @@ func (gr *reader) Cache(opts ...CacheOption) (err error) {
r := gr.r
if cacheOpts.reader != nil {
if r, err = stargz.Open(cacheOpts.reader); err != nil {
if r, err = estargz.Open(cacheOpts.reader); err != nil {
return errors.Wrap(err, "failed to parse stargz")
}
}
@ -128,7 +157,7 @@ func (gr *reader) Cache(opts ...CacheOption) (err error) {
return fmt.Errorf("failed to get a TOCEntry of the root")
}
filter := func(*stargz.TOCEntry) bool {
filter := func(*estargz.TOCEntry) bool {
return true
}
if cacheOpts.filter != nil {
@ -143,8 +172,8 @@ func (gr *reader) Cache(opts ...CacheOption) (err error) {
return eg.Wait()
}
func (gr *reader) cacheWithReader(ctx context.Context, eg *errgroup.Group, sem *semaphore.Weighted, dir *stargz.TOCEntry, r *stargz.Reader, filter func(*stargz.TOCEntry) bool, opts ...cache.Option) (rErr error) {
dir.ForeachChild(func(_ string, e *stargz.TOCEntry) bool {
func (gr *reader) cacheWithReader(ctx context.Context, eg *errgroup.Group, sem *semaphore.Weighted, dir *estargz.TOCEntry, r *estargz.Reader, filter func(*estargz.TOCEntry) bool, opts ...cache.Option) (rErr error) {
dir.ForeachChild(func(_ string, e *estargz.TOCEntry) bool {
if e.Type == "dir" {
// Walk through all files on this stargz file.
@ -171,7 +200,7 @@ func (gr *reader) cacheWithReader(ctx context.Context, eg *errgroup.Group, sem *
} else if !filter(e) {
// This entry need to be filtered out
return true
} else if e.Name == stargz.TOCTarName {
} else if e.Name == estargz.TOCTarName {
// We don't need to cache TOC json file
return true
}
@ -244,7 +273,7 @@ type file struct {
name string
digest string
ra io.ReaderAt
r *stargz.Reader
r *estargz.Reader
cache cache.BlobCache
gr *reader
}
@ -323,7 +352,7 @@ func (sf *file) ReadAt(p []byte, offset int64) (int, error) {
return nr, nil
}
func (sf *file) verify(p []byte, ce *stargz.TOCEntry) error {
func (sf *file) verify(p []byte, ce *estargz.TOCEntry) error {
v, err := sf.gr.verifier.Verifier(ce)
if err != nil {
return errors.Wrapf(err, "verifier not found %q (offset:%d,size:%d)",
@ -357,7 +386,7 @@ type CacheOption func(*cacheOptions)
type cacheOptions struct {
cacheOpts []cache.Option
filter func(*stargz.TOCEntry) bool
filter func(*estargz.TOCEntry) bool
reader *io.SectionReader
}
@ -367,7 +396,7 @@ func WithCacheOpts(cacheOpts ...cache.Option) CacheOption {
}
}
func WithFilter(filter func(*stargz.TOCEntry) bool) CacheOption {
func WithFilter(filter func(*estargz.TOCEntry) bool) CacheOption {
return func(opts *cacheOptions) {
opts.filter = filter
}

View File

@ -1,77 +0,0 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package positionwatcher
import (
"fmt"
"io"
"sync"
)
func NewPositionWatcher(r io.ReaderAt) (*PositionWatcher, error) {
if r == nil {
return nil, fmt.Errorf("Target ReaderAt is empty")
}
pos := int64(0)
return &PositionWatcher{r: r, cPos: &pos}, nil
}
type PositionWatcher struct {
r io.ReaderAt
cPos *int64
mu sync.Mutex
}
func (pwr *PositionWatcher) Read(p []byte) (int, error) {
pwr.mu.Lock()
defer pwr.mu.Unlock()
n, err := pwr.r.ReadAt(p, *pwr.cPos)
if err == nil {
*pwr.cPos += int64(n)
}
return n, err
}
func (pwr *PositionWatcher) Seek(offset int64, whence int) (int64, error) {
pwr.mu.Lock()
defer pwr.mu.Unlock()
switch whence {
default:
return 0, fmt.Errorf("Unknown whence: %v", whence)
case io.SeekStart:
case io.SeekCurrent:
offset += *pwr.cPos
case io.SeekEnd:
return 0, fmt.Errorf("Unsupported whence: %v", whence)
}
if offset < 0 {
return 0, fmt.Errorf("invalid offset")
}
*pwr.cPos = offset
return offset, nil
}
func (pwr *PositionWatcher) CurrentPos() int64 {
pwr.mu.Lock()
defer pwr.mu.Unlock()
return *pwr.cPos
}

View File

@ -1,60 +0,0 @@
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package tempfiles
import (
"io/ioutil"
"os"
"sync"
"github.com/hashicorp/go-multierror"
)
func NewTempFiles() *TempFiles {
return &TempFiles{}
}
type TempFiles struct {
files []*os.File
filesMu sync.Mutex
}
func (tf *TempFiles) TempFile(dir, pattern string) (*os.File, error) {
f, err := ioutil.TempFile(dir, pattern)
if err != nil {
return nil, err
}
tf.filesMu.Lock()
tf.files = append(tf.files, f)
tf.filesMu.Unlock()
return f, nil
}
func (tf *TempFiles) CleanupAll() (allErr error) {
tf.filesMu.Lock()
defer tf.filesMu.Unlock()
for _, f := range tf.files {
if err := f.Close(); err != nil {
allErr = multierror.Append(allErr, err)
}
if err := os.Remove(f.Name()); err != nil {
allErr = multierror.Append(allErr, err)
}
}
tf.files = nil
return nil
}

View File

@ -3,6 +3,7 @@ language: go
go:
- "1.13.x"
- "1.15.x"
install:
# Don't change local go.{mod, sum} by go get tools.

View File

@ -47,8 +47,9 @@ type Client struct {
ctx context.Context
closed func()
closeOnce sync.Once
userCloseFunc func()
closeOnce sync.Once
userCloseFunc func()
userCloseWaitCh chan struct{}
errOnce sync.Once
err error
@ -75,14 +76,15 @@ func WithUnaryClientInterceptor(i UnaryClientInterceptor) ClientOpts {
func NewClient(conn net.Conn, opts ...ClientOpts) *Client {
ctx, cancel := context.WithCancel(context.Background())
c := &Client{
codec: codec{},
conn: conn,
channel: newChannel(conn),
calls: make(chan *callRequest),
closed: cancel,
ctx: ctx,
userCloseFunc: func() {},
interceptor: defaultClientInterceptor,
codec: codec{},
conn: conn,
channel: newChannel(conn),
calls: make(chan *callRequest),
closed: cancel,
ctx: ctx,
userCloseFunc: func() {},
userCloseWaitCh: make(chan struct{}),
interceptor: defaultClientInterceptor,
}
for _, o := range opts {
@ -175,6 +177,17 @@ func (c *Client) Close() error {
return nil
}
// UserOnCloseWait is used to blocks untils the user's on-close callback
// finishes.
func (c *Client) UserOnCloseWait(ctx context.Context) error {
select {
case <-c.userCloseWaitCh:
return nil
case <-ctx.Done():
return ctx.Err()
}
}
type message struct {
messageHeader
p []byte
@ -251,6 +264,7 @@ func (c *Client) run() {
defer func() {
c.conn.Close()
c.userCloseFunc()
close(c.userCloseWaitCh)
}()
for {
@ -339,7 +353,8 @@ func filterCloseErr(err error) error {
return ErrClosed
default:
// if we have an epipe on a write or econnreset on a read , we cast to errclosed
if oerr, ok := err.(*net.OpError); ok && (oerr.Op == "write" || oerr.Op == "read") {
var oerr *net.OpError
if errors.As(err, &oerr) && (oerr.Op == "write" || oerr.Op == "read") {
serr, sok := oerr.Err.(*os.SyscallError)
if sok && ((serr.Err == syscall.EPIPE && oerr.Op == "write") ||
(serr.Err == syscall.ECONNRESET && oerr.Op == "read")) {

View File

@ -21,7 +21,7 @@ var _ = math.Inf
// proto package needs to be updated.
const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
// The canonical error codes for Google APIs.
// The canonical error codes for gRPC APIs.
//
//
// Sometimes multiple error codes may apply. Services should return
@ -156,7 +156,8 @@ const (
INTERNAL Code = 13
// The service is currently unavailable. This is most likely a
// transient condition, which can be corrected by retrying with
// a backoff.
// a backoff. Note that it is not always safe to retry
// non-idempotent operations.
//
// See the guidelines above for deciding between `FAILED_PRECONDITION`,
// `ABORTED`, and `UNAVAILABLE`.

View File

@ -1,4 +1,4 @@
// Copyright 2017 Google Inc.
// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -22,7 +22,7 @@ option java_outer_classname = "CodeProto";
option java_package = "com.google.rpc";
option objc_class_prefix = "RPC";
// The canonical error codes for Google APIs.
// The canonical error codes for gRPC APIs.
//
//
// Sometimes multiple error codes may apply. Services should return
@ -170,7 +170,8 @@ enum Code {
// The service is currently unavailable. This is most likely a
// transient condition, which can be corrected by retrying with
// a backoff.
// a backoff. Note that it is not always safe to retry
// non-idempotent operations.
//
// See the guidelines above for deciding between `FAILED_PRECONDITION`,
// `ABORTED`, and `UNAVAILABLE`.

View File

@ -7,6 +7,7 @@ import (
bytes "bytes"
fmt "fmt"
proto "github.com/gogo/protobuf/proto"
github_com_gogo_protobuf_sortkeys "github.com/gogo/protobuf/sortkeys"
types "github.com/gogo/protobuf/types"
io "io"
math "math"
@ -37,7 +38,7 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
// receiving the error response before retrying. If retrying requests also
// fail, clients should use an exponential backoff scheme to gradually increase
// the delay between retries based on `retry_delay`, until either a maximum
// number of retires have been reached or a maximum retry delay cap has been
// number of retries have been reached or a maximum retry delay cap has been
// reached.
type RetryInfo struct {
// Clients should wait at least this long between retrying the same request.
@ -160,7 +161,7 @@ func (*DebugInfo) XXX_MessageName() string {
// a service could respond with the project id and set `service_disabled`
// to true.
//
// Also see RetryDetail and Help types for other details about handling a
// Also see RetryInfo and Help types for other details about handling a
// quota failure.
type QuotaFailure struct {
// Describes all quota violations.
@ -283,6 +284,111 @@ func (*QuotaFailure_Violation) XXX_MessageName() string {
return "google.rpc.QuotaFailure.Violation"
}
// Describes the cause of the error with structured details.
//
// Example of an error when contacting the "pubsub.googleapis.com" API when it
// is not enabled:
// { "reason": "API_DISABLED"
// "domain": "googleapis.com"
// "metadata": {
// "resource": "projects/123",
// "service": "pubsub.googleapis.com"
// }
// }
// This response indicates that the pubsub.googleapis.com API is not enabled.
//
// Example of an error that is returned when attempting to create a Spanner
// instance in a region that is out of stock:
// { "reason": "STOCKOUT"
// "domain": "spanner.googleapis.com",
// "metadata": {
// "availableRegions": "us-central1,us-east2"
// }
// }
//
type ErrorInfo struct {
// The reason of the error. This is a constant value that identifies the
// proximate cause of the error. Error reasons are unique within a particular
// domain of errors. This should be at most 63 characters and match
// /[A-Z0-9_]+/.
Reason string `protobuf:"bytes,1,opt,name=reason,proto3" json:"reason,omitempty"`
// The logical grouping to which the "reason" belongs. Often "domain" will
// contain the registered service name of the tool or product that is the
// source of the error. Example: "pubsub.googleapis.com". If the error is
// common across many APIs, the first segment of the example above will be
// omitted. The value will be, "googleapis.com".
Domain string `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
// Additional structured details about this error.
//
// Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in
// length. When identifying the current value of an exceeded limit, the units
// should be contained in the key, not the value. For example, rather than
// {"instanceLimit": "100/request"}, should be returned as,
// {"instanceLimitPerRequest": "100"}, if the client exceeds the number of
// instances that can be created in a single (batch) request.
Metadata map[string]string `protobuf:"bytes,3,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *ErrorInfo) Reset() { *m = ErrorInfo{} }
func (*ErrorInfo) ProtoMessage() {}
func (*ErrorInfo) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{3}
}
func (m *ErrorInfo) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
}
func (m *ErrorInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
if deterministic {
return xxx_messageInfo_ErrorInfo.Marshal(b, m, deterministic)
} else {
b = b[:cap(b)]
n, err := m.MarshalToSizedBuffer(b)
if err != nil {
return nil, err
}
return b[:n], nil
}
}
func (m *ErrorInfo) XXX_Merge(src proto.Message) {
xxx_messageInfo_ErrorInfo.Merge(m, src)
}
func (m *ErrorInfo) XXX_Size() int {
return m.Size()
}
func (m *ErrorInfo) XXX_DiscardUnknown() {
xxx_messageInfo_ErrorInfo.DiscardUnknown(m)
}
var xxx_messageInfo_ErrorInfo proto.InternalMessageInfo
func (m *ErrorInfo) GetReason() string {
if m != nil {
return m.Reason
}
return ""
}
func (m *ErrorInfo) GetDomain() string {
if m != nil {
return m.Domain
}
return ""
}
func (m *ErrorInfo) GetMetadata() map[string]string {
if m != nil {
return m.Metadata
}
return nil
}
func (*ErrorInfo) XXX_MessageName() string {
return "google.rpc.ErrorInfo"
}
// Describes what preconditions have failed.
//
// For example, if an RPC failed because it required the Terms of Service to be
@ -299,7 +405,7 @@ type PreconditionFailure struct {
func (m *PreconditionFailure) Reset() { *m = PreconditionFailure{} }
func (*PreconditionFailure) ProtoMessage() {}
func (*PreconditionFailure) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{3}
return fileDescriptor_851816e4d6b6361a, []int{4}
}
func (m *PreconditionFailure) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -342,12 +448,12 @@ func (*PreconditionFailure) XXX_MessageName() string {
// A message type used to describe a single precondition failure.
type PreconditionFailure_Violation struct {
// The type of PreconditionFailure. We recommend using a service-specific
// enum type to define the supported precondition violation types. For
// enum type to define the supported precondition violation subjects. For
// example, "TOS" for "Terms of Service violation".
Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
// The subject, relative to the type, that failed.
// For example, "google.com/cloud" relative to the "TOS" type would
// indicate which terms of service is being referenced.
// For example, "google.com/cloud" relative to the "TOS" type would indicate
// which terms of service is being referenced.
Subject string `protobuf:"bytes,2,opt,name=subject,proto3" json:"subject,omitempty"`
// A description of how the precondition failed. Developers can use this
// description to understand how to fix the failure.
@ -362,7 +468,7 @@ type PreconditionFailure_Violation struct {
func (m *PreconditionFailure_Violation) Reset() { *m = PreconditionFailure_Violation{} }
func (*PreconditionFailure_Violation) ProtoMessage() {}
func (*PreconditionFailure_Violation) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{3, 0}
return fileDescriptor_851816e4d6b6361a, []int{4, 0}
}
func (m *PreconditionFailure_Violation) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -429,7 +535,7 @@ type BadRequest struct {
func (m *BadRequest) Reset() { *m = BadRequest{} }
func (*BadRequest) ProtoMessage() {}
func (*BadRequest) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{4}
return fileDescriptor_851816e4d6b6361a, []int{5}
}
func (m *BadRequest) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -485,7 +591,7 @@ type BadRequest_FieldViolation struct {
func (m *BadRequest_FieldViolation) Reset() { *m = BadRequest_FieldViolation{} }
func (*BadRequest_FieldViolation) ProtoMessage() {}
func (*BadRequest_FieldViolation) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{4, 0}
return fileDescriptor_851816e4d6b6361a, []int{5, 0}
}
func (m *BadRequest_FieldViolation) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -549,7 +655,7 @@ type RequestInfo struct {
func (m *RequestInfo) Reset() { *m = RequestInfo{} }
func (*RequestInfo) ProtoMessage() {}
func (*RequestInfo) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{5}
return fileDescriptor_851816e4d6b6361a, []int{6}
}
func (m *RequestInfo) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -604,8 +710,7 @@ type ResourceInfo struct {
ResourceType string `protobuf:"bytes,1,opt,name=resource_type,json=resourceType,proto3" json:"resource_type,omitempty"`
// The name of the resource being accessed. For example, a shared calendar
// name: "example.com_4fghdhgsrgh@group.calendar.google.com", if the current
// error is
// [google.rpc.Code.PERMISSION_DENIED][google.rpc.Code.PERMISSION_DENIED].
// error is [google.rpc.Code.PERMISSION_DENIED][google.rpc.Code.PERMISSION_DENIED].
ResourceName string `protobuf:"bytes,2,opt,name=resource_name,json=resourceName,proto3" json:"resource_name,omitempty"`
// The owner of the resource (optional).
// For example, "user:<owner email>" or "project:<Google developer project
@ -623,7 +728,7 @@ type ResourceInfo struct {
func (m *ResourceInfo) Reset() { *m = ResourceInfo{} }
func (*ResourceInfo) ProtoMessage() {}
func (*ResourceInfo) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{6}
return fileDescriptor_851816e4d6b6361a, []int{7}
}
func (m *ResourceInfo) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -700,7 +805,7 @@ type Help struct {
func (m *Help) Reset() { *m = Help{} }
func (*Help) ProtoMessage() {}
func (*Help) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{7}
return fileDescriptor_851816e4d6b6361a, []int{8}
}
func (m *Help) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -754,7 +859,7 @@ type Help_Link struct {
func (m *Help_Link) Reset() { *m = Help_Link{} }
func (*Help_Link) ProtoMessage() {}
func (*Help_Link) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{7, 0}
return fileDescriptor_851816e4d6b6361a, []int{8, 0}
}
func (m *Help_Link) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -818,7 +923,7 @@ type LocalizedMessage struct {
func (m *LocalizedMessage) Reset() { *m = LocalizedMessage{} }
func (*LocalizedMessage) ProtoMessage() {}
func (*LocalizedMessage) Descriptor() ([]byte, []int) {
return fileDescriptor_851816e4d6b6361a, []int{8}
return fileDescriptor_851816e4d6b6361a, []int{9}
}
func (m *LocalizedMessage) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -869,6 +974,8 @@ func init() {
proto.RegisterType((*DebugInfo)(nil), "google.rpc.DebugInfo")
proto.RegisterType((*QuotaFailure)(nil), "google.rpc.QuotaFailure")
proto.RegisterType((*QuotaFailure_Violation)(nil), "google.rpc.QuotaFailure.Violation")
proto.RegisterType((*ErrorInfo)(nil), "google.rpc.ErrorInfo")
proto.RegisterMapType((map[string]string)(nil), "google.rpc.ErrorInfo.MetadataEntry")
proto.RegisterType((*PreconditionFailure)(nil), "google.rpc.PreconditionFailure")
proto.RegisterType((*PreconditionFailure_Violation)(nil), "google.rpc.PreconditionFailure.Violation")
proto.RegisterType((*BadRequest)(nil), "google.rpc.BadRequest")
@ -883,46 +990,52 @@ func init() {
func init() { proto.RegisterFile("google/rpc/error_details.proto", fileDescriptor_851816e4d6b6361a) }
var fileDescriptor_851816e4d6b6361a = []byte{
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0xf5, 0x69, 0x4c, 0xab, 0x45, 0x65, 0x64, 0x35, 0x6f, 0x64, 0x2a, 0xec, 0x1c, 0x68, 0x96, 0x0c,
0x6b, 0xe4, 0x4e, 0x0f, 0xd5, 0x1e, 0xc3, 0xe2, 0x85, 0x2d, 0x73, 0x19, 0x8a, 0x7d, 0x1c, 0xe9,
0xeb, 0xe5, 0xd2, 0xbc, 0x09, 0xf3, 0x87, 0x34, 0x48, 0x50, 0x5f, 0x9d, 0x82, 0xcd, 0xc2, 0x23,
0x62, 0x7f, 0x23, 0x70, 0xa3, 0x25, 0xd0, 0xe3, 0xa1, 0xcf, 0xa4, 0x99, 0x2c, 0xe0, 0xbd, 0x2b,
0x02, 0xbe, 0x9f, 0xef, 0xeb, 0x8a, 0x43, 0x7f, 0xc8, 0xf9, 0x4d, 0x3e, 0x67, 0x13, 0x4a, 0xf1,
0x68, 0x88, 0xba, 0x39, 0xb5, 0xce, 0x67, 0x5f, 0xf8, 0x6b, 0xf6, 0xc5, 0xd9, 0xec, 0x8f, 0x08,
0x40, 0x83, 0xfa, 0x2e, 0xbe, 0x4b, 0x30, 0x8a, 0xcd, 0x16, 0x2c, 0x77, 0x19, 0x06, 0x7e, 0x7b,
0xa6, 0xf9, 0x7b, 0xf9, 0xe6, 0xcf, 0x4f, 0x38, 0xdb, 0x92, 0x7e, 0xde, 0xf8, 0xb5, 0xee, 0x05,
0x1c, 0xd5, 0x76, 0x61, 0xe9, 0x22, 0x45, 0x86, 0xa9, 0x48, 0xda, 0x43, 0x0a, 0xfe, 0x61, 0x4c,
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0xec, 0xf9, 0xe6, 0x5d, 0xa8, 0x44, 0x28, 0x0e, 0x59, 0xd8, 0x6b, 0xab, 0xd1, 0xd0, 0x82, 0xba,
0xd6, 0xa4, 0x31, 0xb5, 0x3f, 0x11, 0xa8, 0xb8, 0x18, 0xf1, 0x44, 0x78, 0x98, 0xbd, 0x31, 0xa1,
0x71, 0x3b, 0x97, 0x72, 0x25, 0x2b, 0xbe, 0x94, 0x69, 0xe7, 0x49, 0x21, 0x1d, 0x64, 0x33, 0x31,
0x25, 0x3d, 0xa3, 0x03, 0x94, 0x1e, 0xf9, 0xfb, 0x10, 0x85, 0x8e, 0x3c, 0x05, 0x97, 0x3d, 0x96,
0x66, 0x3d, 0x72, 0x28, 0xed, 0x62, 0x30, 0x34, 0x1f, 0xc0, 0x7c, 0xc0, 0xc2, 0x7e, 0x16, 0xfe,
0xad, 0x7c, 0xf8, 0x92, 0xe0, 0xec, 0xb3, 0xb0, 0xef, 0xa6, 0x9c, 0xda, 0x26, 0x94, 0x24, 0xbc,
0x2c, 0x4f, 0x66, 0xe4, 0xe5, 0x64, 0x27, 0x22, 0xfb, 0x1c, 0xe4, 0xd2, 0x6e, 0xc2, 0xf2, 0x3e,
0xf7, 0x68, 0xc0, 0x3e, 0xa0, 0x7f, 0x80, 0x51, 0x44, 0x7b, 0x28, 0x5f, 0x5a, 0x20, 0x6b, 0x99,
0x7f, 0x8d, 0xe4, 0x9c, 0x0d, 0x52, 0x4a, 0x36, 0x67, 0x1a, 0x36, 0xfc, 0x93, 0xb1, 0x35, 0xf7,
0x7d, 0x6c, 0xcd, 0x9d, 0x8d, 0x2d, 0xf2, 0x6b, 0x6c, 0x91, 0x8f, 0x13, 0x8b, 0x1c, 0x4d, 0x2c,
0x72, 0x3c, 0xb1, 0xc8, 0xc9, 0xc4, 0x22, 0x3f, 0x26, 0x16, 0xf9, 0x39, 0xb1, 0xe6, 0xce, 0x64,
0xfd, 0xd4, 0x22, 0xc7, 0xa7, 0x16, 0x81, 0x25, 0x8f, 0x0f, 0x72, 0xc6, 0x1a, 0xd7, 0xd5, 0x5b,
0x6d, 0xa6, 0x1f, 0x6f, 0x4b, 0x7e, 0x8d, 0x2d, 0xf2, 0xba, 0x28, 0x86, 0xde, 0x97, 0x42, 0xd1,
0x6d, 0x3d, 0xed, 0x2c, 0xa8, 0xef, 0xf2, 0xe1, 0xef, 0x00, 0x00, 0x00, 0xff, 0xff, 0x94, 0xc6,
0xb7, 0xdd, 0xad, 0x05, 0x00, 0x00,
}
func (this *RetryInfo) Compare(that interface{}) int {
@ -1091,6 +1204,62 @@ func (this *QuotaFailure_Violation) Compare(that interface{}) int {
}
return 0
}
func (this *ErrorInfo) Compare(that interface{}) int {
if that == nil {
if this == nil {
return 0
}
return 1
}
that1, ok := that.(*ErrorInfo)
if !ok {
that2, ok := that.(ErrorInfo)
if ok {
that1 = &that2
} else {
return 1
}
}
if that1 == nil {
if this == nil {
return 0
}
return 1
} else if this == nil {
return -1
}
if this.Reason != that1.Reason {
if this.Reason < that1.Reason {
return -1
}
return 1
}
if this.Domain != that1.Domain {
if this.Domain < that1.Domain {
return -1
}
return 1
}
if len(this.Metadata) != len(that1.Metadata) {
if len(this.Metadata) < len(that1.Metadata) {
return -1
}
return 1
}
for i := range this.Metadata {
if this.Metadata[i] != that1.Metadata[i] {
if this.Metadata[i] < that1.Metadata[i] {
return -1
}
return 1
}
}
if c := bytes.Compare(this.XXX_unrecognized, that1.XXX_unrecognized); c != 0 {
return c
}
return 0
}
func (this *PreconditionFailure) Compare(that interface{}) int {
if that == nil {
if this == nil {
@ -1608,6 +1777,44 @@ func (this *QuotaFailure_Violation) Equal(that interface{}) bool {
}
return true
}
func (this *ErrorInfo) Equal(that interface{}) bool {
if that == nil {
return this == nil
}
that1, ok := that.(*ErrorInfo)
if !ok {
that2, ok := that.(ErrorInfo)
if ok {
that1 = &that2
} else {
return false
}
}
if that1 == nil {
return this == nil
} else if this == nil {
return false
}
if this.Reason != that1.Reason {
return false
}
if this.Domain != that1.Domain {
return false
}
if len(this.Metadata) != len(that1.Metadata) {
return false
}
for i := range this.Metadata {
if this.Metadata[i] != that1.Metadata[i] {
return false
}
}
if !bytes.Equal(this.XXX_unrecognized, that1.XXX_unrecognized) {
return false
}
return true
}
func (this *PreconditionFailure) Equal(that interface{}) bool {
if that == nil {
return this == nil
@ -1951,6 +2158,33 @@ func (this *QuotaFailure_Violation) GoString() string {
s = append(s, "}")
return strings.Join(s, "")
}
func (this *ErrorInfo) GoString() string {
if this == nil {
return "nil"
}
s := make([]string, 0, 7)
s = append(s, "&rpc.ErrorInfo{")
s = append(s, "Reason: "+fmt.Sprintf("%#v", this.Reason)+",\n")
s = append(s, "Domain: "+fmt.Sprintf("%#v", this.Domain)+",\n")
keysForMetadata := make([]string, 0, len(this.Metadata))
for k, _ := range this.Metadata {
keysForMetadata = append(keysForMetadata, k)
}
github_com_gogo_protobuf_sortkeys.Strings(keysForMetadata)
mapStringForMetadata := "map[string]string{"
for _, k := range keysForMetadata {
mapStringForMetadata += fmt.Sprintf("%#v: %#v,", k, this.Metadata[k])
}
mapStringForMetadata += "}"
if this.Metadata != nil {
s = append(s, "Metadata: "+mapStringForMetadata+",\n")
}
if this.XXX_unrecognized != nil {
s = append(s, "XXX_unrecognized:"+fmt.Sprintf("%#v", this.XXX_unrecognized)+",\n")
}
s = append(s, "}")
return strings.Join(s, "")
}
func (this *PreconditionFailure) GoString() string {
if this == nil {
return "nil"
@ -2255,6 +2489,66 @@ func (m *QuotaFailure_Violation) MarshalToSizedBuffer(dAtA []byte) (int, error)
return len(dAtA) - i, nil
}
func (m *ErrorInfo) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
n, err := m.MarshalToSizedBuffer(dAtA[:size])
if err != nil {
return nil, err
}
return dAtA[:n], nil
}
func (m *ErrorInfo) MarshalTo(dAtA []byte) (int, error) {
size := m.Size()
return m.MarshalToSizedBuffer(dAtA[:size])
}
func (m *ErrorInfo) MarshalToSizedBuffer(dAtA []byte) (int, error) {
i := len(dAtA)
_ = i
var l int
_ = l
if m.XXX_unrecognized != nil {
i -= len(m.XXX_unrecognized)
copy(dAtA[i:], m.XXX_unrecognized)
}
if len(m.Metadata) > 0 {
for k := range m.Metadata {
v := m.Metadata[k]
baseI := i
i -= len(v)
copy(dAtA[i:], v)
i = encodeVarintErrorDetails(dAtA, i, uint64(len(v)))
i--
dAtA[i] = 0x12
i -= len(k)
copy(dAtA[i:], k)
i = encodeVarintErrorDetails(dAtA, i, uint64(len(k)))
i--
dAtA[i] = 0xa
i = encodeVarintErrorDetails(dAtA, i, uint64(baseI-i))
i--
dAtA[i] = 0x1a
}
}
if len(m.Domain) > 0 {
i -= len(m.Domain)
copy(dAtA[i:], m.Domain)
i = encodeVarintErrorDetails(dAtA, i, uint64(len(m.Domain)))
i--
dAtA[i] = 0x12
}
if len(m.Reason) > 0 {
i -= len(m.Reason)
copy(dAtA[i:], m.Reason)
i = encodeVarintErrorDetails(dAtA, i, uint64(len(m.Reason)))
i--
dAtA[i] = 0xa
}
return len(dAtA) - i, nil
}
func (m *PreconditionFailure) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
@ -2706,12 +3000,29 @@ func NewPopulatedQuotaFailure_Violation(r randyErrorDetails, easy bool) *QuotaFa
return this
}
func NewPopulatedErrorInfo(r randyErrorDetails, easy bool) *ErrorInfo {
this := &ErrorInfo{}
this.Reason = string(randStringErrorDetails(r))
this.Domain = string(randStringErrorDetails(r))
if r.Intn(5) != 0 {
v3 := r.Intn(10)
this.Metadata = make(map[string]string)
for i := 0; i < v3; i++ {
this.Metadata[randStringErrorDetails(r)] = randStringErrorDetails(r)
}
}
if !easy && r.Intn(10) != 0 {
this.XXX_unrecognized = randUnrecognizedErrorDetails(r, 4)
}
return this
}
func NewPopulatedPreconditionFailure(r randyErrorDetails, easy bool) *PreconditionFailure {
this := &PreconditionFailure{}
if r.Intn(5) != 0 {
v3 := r.Intn(5)
this.Violations = make([]*PreconditionFailure_Violation, v3)
for i := 0; i < v3; i++ {
v4 := r.Intn(5)
this.Violations = make([]*PreconditionFailure_Violation, v4)
for i := 0; i < v4; i++ {
this.Violations[i] = NewPopulatedPreconditionFailure_Violation(r, easy)
}
}
@ -2735,9 +3046,9 @@ func NewPopulatedPreconditionFailure_Violation(r randyErrorDetails, easy bool) *
func NewPopulatedBadRequest(r randyErrorDetails, easy bool) *BadRequest {
this := &BadRequest{}
if r.Intn(5) != 0 {
v4 := r.Intn(5)
this.FieldViolations = make([]*BadRequest_FieldViolation, v4)
for i := 0; i < v4; i++ {
v5 := r.Intn(5)
this.FieldViolations = make([]*BadRequest_FieldViolation, v5)
for i := 0; i < v5; i++ {
this.FieldViolations[i] = NewPopulatedBadRequest_FieldViolation(r, easy)
}
}
@ -2782,9 +3093,9 @@ func NewPopulatedResourceInfo(r randyErrorDetails, easy bool) *ResourceInfo {
func NewPopulatedHelp(r randyErrorDetails, easy bool) *Help {
this := &Help{}
if r.Intn(5) != 0 {
v5 := r.Intn(5)
this.Links = make([]*Help_Link, v5)
for i := 0; i < v5; i++ {
v6 := r.Intn(5)
this.Links = make([]*Help_Link, v6)
for i := 0; i < v6; i++ {
this.Links[i] = NewPopulatedHelp_Link(r, easy)
}
}
@ -2833,9 +3144,9 @@ func randUTF8RuneErrorDetails(r randyErrorDetails) rune {
return rune(ru + 61)
}
func randStringErrorDetails(r randyErrorDetails) string {
v6 := r.Intn(100)
tmps := make([]rune, v6)
for i := 0; i < v6; i++ {
v7 := r.Intn(100)
tmps := make([]rune, v7)
for i := 0; i < v7; i++ {
tmps[i] = randUTF8RuneErrorDetails(r)
}
return string(tmps)
@ -2857,11 +3168,11 @@ func randFieldErrorDetails(dAtA []byte, r randyErrorDetails, fieldNumber int, wi
switch wire {
case 0:
dAtA = encodeVarintPopulateErrorDetails(dAtA, uint64(key))
v7 := r.Int63()
v8 := r.Int63()
if r.Intn(2) == 0 {
v7 *= -1
v8 *= -1
}
dAtA = encodeVarintPopulateErrorDetails(dAtA, uint64(v7))
dAtA = encodeVarintPopulateErrorDetails(dAtA, uint64(v8))
case 1:
dAtA = encodeVarintPopulateErrorDetails(dAtA, uint64(key))
dAtA = append(dAtA, byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)), byte(r.Intn(256)))
@ -2962,6 +3273,34 @@ func (m *QuotaFailure_Violation) Size() (n int) {
return n
}
func (m *ErrorInfo) Size() (n int) {
if m == nil {
return 0
}
var l int
_ = l
l = len(m.Reason)
if l > 0 {
n += 1 + l + sovErrorDetails(uint64(l))
}
l = len(m.Domain)
if l > 0 {
n += 1 + l + sovErrorDetails(uint64(l))
}
if len(m.Metadata) > 0 {
for k, v := range m.Metadata {
_ = k
_ = v
mapEntrySize := 1 + len(k) + sovErrorDetails(uint64(len(k))) + 1 + len(v) + sovErrorDetails(uint64(len(v)))
n += mapEntrySize + 1 + sovErrorDetails(uint64(mapEntrySize))
}
}
if m.XXX_unrecognized != nil {
n += len(m.XXX_unrecognized)
}
return n
}
func (m *PreconditionFailure) Size() (n int) {
if m == nil {
return 0
@ -3205,6 +3544,29 @@ func (this *QuotaFailure_Violation) String() string {
}, "")
return s
}
func (this *ErrorInfo) String() string {
if this == nil {
return "nil"
}
keysForMetadata := make([]string, 0, len(this.Metadata))
for k, _ := range this.Metadata {
keysForMetadata = append(keysForMetadata, k)
}
github_com_gogo_protobuf_sortkeys.Strings(keysForMetadata)
mapStringForMetadata := "map[string]string{"
for _, k := range keysForMetadata {
mapStringForMetadata += fmt.Sprintf("%v: %v,", k, this.Metadata[k])
}
mapStringForMetadata += "}"
s := strings.Join([]string{`&ErrorInfo{`,
`Reason:` + fmt.Sprintf("%v", this.Reason) + `,`,
`Domain:` + fmt.Sprintf("%v", this.Domain) + `,`,
`Metadata:` + mapStringForMetadata + `,`,
`XXX_unrecognized:` + fmt.Sprintf("%v", this.XXX_unrecognized) + `,`,
`}`,
}, "")
return s
}
func (this *PreconditionFailure) String() string {
if this == nil {
return "nil"
@ -3750,6 +4112,251 @@ func (m *QuotaFailure_Violation) Unmarshal(dAtA []byte) error {
}
return nil
}
func (m *ErrorInfo) Unmarshal(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0
for iNdEx < l {
preIndex := iNdEx
var wire uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowErrorDetails
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
fieldNum := int32(wire >> 3)
wireType := int(wire & 0x7)
if wireType == 4 {
return fmt.Errorf("proto: ErrorInfo: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: ErrorInfo: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Reason", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowErrorDetails
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLen |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLen := int(stringLen)
if intStringLen < 0 {
return ErrInvalidLengthErrorDetails
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return ErrInvalidLengthErrorDetails
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Reason = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
case 2:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Domain", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowErrorDetails
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLen |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLen := int(stringLen)
if intStringLen < 0 {
return ErrInvalidLengthErrorDetails
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return ErrInvalidLengthErrorDetails
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Domain = string(dAtA[iNdEx:postIndex])
iNdEx = postIndex
case 3:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Metadata", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowErrorDetails
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= int(b&0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthErrorDetails
}
postIndex := iNdEx + msglen
if postIndex < 0 {
return ErrInvalidLengthErrorDetails
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
if m.Metadata == nil {
m.Metadata = make(map[string]string)
}
var mapkey string
var mapvalue string
for iNdEx < postIndex {
entryPreIndex := iNdEx
var wire uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowErrorDetails
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
fieldNum := int32(wire >> 3)
if fieldNum == 1 {
var stringLenmapkey uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowErrorDetails
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLenmapkey |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLenmapkey := int(stringLenmapkey)
if intStringLenmapkey < 0 {
return ErrInvalidLengthErrorDetails
}
postStringIndexmapkey := iNdEx + intStringLenmapkey
if postStringIndexmapkey < 0 {
return ErrInvalidLengthErrorDetails
}
if postStringIndexmapkey > l {
return io.ErrUnexpectedEOF
}
mapkey = string(dAtA[iNdEx:postStringIndexmapkey])
iNdEx = postStringIndexmapkey
} else if fieldNum == 2 {
var stringLenmapvalue uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowErrorDetails
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
stringLenmapvalue |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
intStringLenmapvalue := int(stringLenmapvalue)
if intStringLenmapvalue < 0 {
return ErrInvalidLengthErrorDetails
}
postStringIndexmapvalue := iNdEx + intStringLenmapvalue
if postStringIndexmapvalue < 0 {
return ErrInvalidLengthErrorDetails
}
if postStringIndexmapvalue > l {
return io.ErrUnexpectedEOF
}
mapvalue = string(dAtA[iNdEx:postStringIndexmapvalue])
iNdEx = postStringIndexmapvalue
} else {
iNdEx = entryPreIndex
skippy, err := skipErrorDetails(dAtA[iNdEx:])
if err != nil {
return err
}
if skippy < 0 {
return ErrInvalidLengthErrorDetails
}
if (iNdEx + skippy) > postIndex {
return io.ErrUnexpectedEOF
}
iNdEx += skippy
}
}
m.Metadata[mapkey] = mapvalue
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipErrorDetails(dAtA[iNdEx:])
if err != nil {
return err
}
if skippy < 0 {
return ErrInvalidLengthErrorDetails
}
if (iNdEx + skippy) < 0 {
return ErrInvalidLengthErrorDetails
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}
func (m *PreconditionFailure) Unmarshal(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0

View File

@ -1,4 +1,4 @@
// Copyright 2017 Google Inc.
// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -35,7 +35,7 @@ option objc_class_prefix = "RPC";
// receiving the error response before retrying. If retrying requests also
// fail, clients should use an exponential backoff scheme to gradually increase
// the delay between retries based on `retry_delay`, until either a maximum
// number of retires have been reached or a maximum retry delay cap has been
// number of retries have been reached or a maximum retry delay cap has been
// reached.
message RetryInfo {
// Clients should wait at least this long between retrying the same request.
@ -60,7 +60,7 @@ message DebugInfo {
// a service could respond with the project id and set `service_disabled`
// to true.
//
// Also see RetryDetail and Help types for other details about handling a
// Also see RetryInfo and Help types for other details about handling a
// quota failure.
message QuotaFailure {
// A message type used to describe a single quota violation. For example, a
@ -85,6 +85,53 @@ message QuotaFailure {
repeated Violation violations = 1;
}
// Describes the cause of the error with structured details.
//
// Example of an error when contacting the "pubsub.googleapis.com" API when it
// is not enabled:
// { "reason": "API_DISABLED"
// "domain": "googleapis.com"
// "metadata": {
// "resource": "projects/123",
// "service": "pubsub.googleapis.com"
// }
// }
// This response indicates that the pubsub.googleapis.com API is not enabled.
//
// Example of an error that is returned when attempting to create a Spanner
// instance in a region that is out of stock:
// { "reason": "STOCKOUT"
// "domain": "spanner.googleapis.com",
// "metadata": {
// "availableRegions": "us-central1,us-east2"
// }
// }
//
message ErrorInfo {
// The reason of the error. This is a constant value that identifies the
// proximate cause of the error. Error reasons are unique within a particular
// domain of errors. This should be at most 63 characters and match
// /[A-Z0-9_]+/.
string reason = 1;
// The logical grouping to which the "reason" belongs. Often "domain" will
// contain the registered service name of the tool or product that is the
// source of the error. Example: "pubsub.googleapis.com". If the error is
// common across many APIs, the first segment of the example above will be
// omitted. The value will be, "googleapis.com".
string domain = 2;
// Additional structured details about this error.
//
// Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in
// length. When identifying the current value of an exceeded limit, the units
// should be contained in the key, not the value. For example, rather than
// {"instanceLimit": "100/request"}, should be returned as,
// {"instanceLimitPerRequest": "100"}, if the client exceeds the number of
// instances that can be created in a single (batch) request.
map<string, string> metadata = 3;
}
// Describes what preconditions have failed.
//
// For example, if an RPC failed because it required the Terms of Service to be
@ -94,13 +141,13 @@ message PreconditionFailure {
// A message type used to describe a single precondition failure.
message Violation {
// The type of PreconditionFailure. We recommend using a service-specific
// enum type to define the supported precondition violation types. For
// enum type to define the supported precondition violation subjects. For
// example, "TOS" for "Terms of Service violation".
string type = 1;
// The subject, relative to the type, that failed.
// For example, "google.com/cloud" relative to the "TOS" type would
// indicate which terms of service is being referenced.
// For example, "google.com/cloud" relative to the "TOS" type would indicate
// which terms of service is being referenced.
string subject = 2;
// A description of how the precondition failed. Developers can use this
@ -153,8 +200,7 @@ message ResourceInfo {
// The name of the resource being accessed. For example, a shared calendar
// name: "example.com_4fghdhgsrgh@group.calendar.google.com", if the current
// error is
// [google.rpc.Code.PERMISSION_DENIED][google.rpc.Code.PERMISSION_DENIED].
// error is [google.rpc.Code.PERMISSION_DENIED][google.rpc.Code.PERMISSION_DENIED].
string resource_name = 2;
// The owner of the resource (optional).

View File

@ -28,65 +28,17 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
// The `Status` type defines a logical error model that is suitable for
// different programming environments, including REST APIs and RPC APIs. It is
// used by [gRPC](https://github.com/grpc). The error model is designed to be:
// used by [gRPC](https://github.com/grpc). Each `Status` message contains
// three pieces of data: error code, error message, and error details.
//
// - Simple to use and understand for most users
// - Flexible enough to meet unexpected needs
//
// # Overview
//
// The `Status` message contains three pieces of data: error code, error
// message, and error details. The error code should be an enum value of
// [google.rpc.Code][google.rpc.Code], but it may accept additional error codes
// if needed. The error message should be a developer-facing English message
// that helps developers *understand* and *resolve* the error. If a localized
// user-facing error message is needed, put the localized message in the error
// details or localize it in the client. The optional error details may contain
// arbitrary information about the error. There is a predefined set of error
// detail types in the package `google.rpc` that can be used for common error
// conditions.
//
// # Language mapping
//
// The `Status` message is the logical representation of the error model, but it
// is not necessarily the actual wire format. When the `Status` message is
// exposed in different client libraries and different wire protocols, it can be
// mapped differently. For example, it will likely be mapped to some exceptions
// in Java, but more likely mapped to some error codes in C.
//
// # Other uses
//
// The error model and the `Status` message can be used in a variety of
// environments, either with or without APIs, to provide a
// consistent developer experience across different environments.
//
// Example uses of this error model include:
//
// - Partial errors. If a service needs to return partial errors to the client,
// it may embed the `Status` in the normal response to indicate the partial
// errors.
//
// - Workflow errors. A typical workflow has multiple steps. Each step may
// have a `Status` message for error reporting.
//
// - Batch operations. If a client uses batch request and batch response, the
// `Status` message should be used directly inside batch response, one for
// each error sub-response.
//
// - Asynchronous operations. If an API call embeds asynchronous operation
// results in its response, the status of those operations should be
// represented directly using the `Status` message.
//
// - Logging. If some API errors are stored in logs, the message `Status` could
// be used directly after any stripping needed for security/privacy reasons.
// You can find out more about this error model and how to work with it in the
// [API Design Guide](https://cloud.google.com/apis/design/errors).
type Status struct {
// The status code, which should be an enum value of
// [google.rpc.Code][google.rpc.Code].
// The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code].
Code int32 `protobuf:"varint,1,opt,name=code,proto3" json:"code,omitempty"`
// A developer-facing error message, which should be in English. Any
// user-facing error message should be localized and sent in the
// [google.rpc.Status.details][google.rpc.Status.details] field, or localized
// by the client.
// [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client.
Message string `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
// A list of messages that carry the error details. There is a common set of
// message types for APIs to use.
@ -159,7 +111,7 @@ func init() {
func init() { proto.RegisterFile("google/rpc/status.proto", fileDescriptor_24d244abaf643bfe) }
var fileDescriptor_24d244abaf643bfe = []byte{
// 235 bytes of a gzipped FileDescriptorProto
// 238 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x12, 0x4f, 0xcf, 0xcf, 0x4f,
0xcf, 0x49, 0xd5, 0x2f, 0x2a, 0x48, 0xd6, 0x2f, 0x2e, 0x49, 0x2c, 0x29, 0x2d, 0xd6, 0x2b, 0x28,
0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x82, 0x48, 0xe8, 0x15, 0x15, 0x24, 0x4b, 0x49, 0x42, 0x15, 0x81,
@ -168,13 +120,13 @@ var fileDescriptor_24d244abaf643bfe = []byte{
0xc0, 0x6c, 0x21, 0x09, 0x2e, 0xf6, 0xdc, 0xd4, 0xe2, 0xe2, 0xc4, 0xf4, 0x54, 0x09, 0x26, 0x05,
0x46, 0x0d, 0xce, 0x20, 0x18, 0x57, 0x48, 0x8f, 0x8b, 0x3d, 0x25, 0xb5, 0x24, 0x31, 0x33, 0xa7,
0x58, 0x82, 0x59, 0x81, 0x59, 0x83, 0xdb, 0x48, 0x44, 0x0f, 0x6a, 0x21, 0xcc, 0x12, 0x3d, 0xc7,
0xbc, 0xca, 0x20, 0x98, 0x22, 0xa7, 0xb8, 0x0b, 0x0f, 0xe5, 0x18, 0x6e, 0x3c, 0x94, 0x63, 0xf8,
0xbc, 0xca, 0x20, 0x98, 0x22, 0xa7, 0xc4, 0x0b, 0x0f, 0xe5, 0x18, 0x6e, 0x3c, 0x94, 0x63, 0xf8,
0xf0, 0x50, 0x8e, 0xf1, 0xc7, 0x43, 0x39, 0xc6, 0x86, 0x47, 0x72, 0x8c, 0x2b, 0x1e, 0xc9, 0x31,
0x9e, 0x78, 0x24, 0xc7, 0x78, 0xe1, 0x91, 0x1c, 0xe3, 0x83, 0x47, 0x72, 0x8c, 0x2f, 0x1e, 0xc9,
0x31, 0x7c, 0x00, 0x89, 0x3f, 0x96, 0x63, 0x3c, 0xf1, 0x58, 0x8e, 0x91, 0x8b, 0x2f, 0x39, 0x3f,
0x57, 0x0f, 0xe1, 0x11, 0x27, 0x6e, 0x88, 0x5b, 0x03, 0x40, 0x56, 0x04, 0x30, 0x46, 0x31, 0x17,
0x15, 0x24, 0x2f, 0x62, 0x62, 0x0e, 0x0a, 0x70, 0x4e, 0x62, 0x03, 0x5b, 0x6b, 0x0c, 0x08, 0x00,
0x00, 0xff, 0xff, 0xaa, 0x06, 0xa1, 0xaa, 0x10, 0x01, 0x00, 0x00,
0x15, 0x24, 0xff, 0x60, 0x64, 0x5c, 0xc4, 0xc4, 0x1c, 0x14, 0xe0, 0x9c, 0xc4, 0x06, 0xb6, 0xd9,
0x18, 0x10, 0x00, 0x00, 0xff, 0xff, 0x16, 0xcd, 0x7b, 0x60, 0x13, 0x01, 0x00, 0x00,
}
func (this *Status) Compare(that interface{}) int {

View File

@ -1,4 +1,4 @@
// Copyright 2017 Google Inc.
// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@ -18,6 +18,7 @@ package google.rpc;
import "google/protobuf/any.proto";
option cc_enable_arenas = true;
option go_package = "rpc";
option java_multiple_files = true;
option java_outer_classname = "StatusProto";
@ -26,66 +27,18 @@ option objc_class_prefix = "RPC";
// The `Status` type defines a logical error model that is suitable for
// different programming environments, including REST APIs and RPC APIs. It is
// used by [gRPC](https://github.com/grpc). The error model is designed to be:
// used by [gRPC](https://github.com/grpc). Each `Status` message contains
// three pieces of data: error code, error message, and error details.
//
// - Simple to use and understand for most users
// - Flexible enough to meet unexpected needs
//
// # Overview
//
// The `Status` message contains three pieces of data: error code, error
// message, and error details. The error code should be an enum value of
// [google.rpc.Code][google.rpc.Code], but it may accept additional error codes
// if needed. The error message should be a developer-facing English message
// that helps developers *understand* and *resolve* the error. If a localized
// user-facing error message is needed, put the localized message in the error
// details or localize it in the client. The optional error details may contain
// arbitrary information about the error. There is a predefined set of error
// detail types in the package `google.rpc` that can be used for common error
// conditions.
//
// # Language mapping
//
// The `Status` message is the logical representation of the error model, but it
// is not necessarily the actual wire format. When the `Status` message is
// exposed in different client libraries and different wire protocols, it can be
// mapped differently. For example, it will likely be mapped to some exceptions
// in Java, but more likely mapped to some error codes in C.
//
// # Other uses
//
// The error model and the `Status` message can be used in a variety of
// environments, either with or without APIs, to provide a
// consistent developer experience across different environments.
//
// Example uses of this error model include:
//
// - Partial errors. If a service needs to return partial errors to the client,
// it may embed the `Status` in the normal response to indicate the partial
// errors.
//
// - Workflow errors. A typical workflow has multiple steps. Each step may
// have a `Status` message for error reporting.
//
// - Batch operations. If a client uses batch request and batch response, the
// `Status` message should be used directly inside batch response, one for
// each error sub-response.
//
// - Asynchronous operations. If an API call embeds asynchronous operation
// results in its response, the status of those operations should be
// represented directly using the `Status` message.
//
// - Logging. If some API errors are stored in logs, the message `Status` could
// be used directly after any stripping needed for security/privacy reasons.
// You can find out more about this error model and how to work with it in the
// [API Design Guide](https://cloud.google.com/apis/design/errors).
message Status {
// The status code, which should be an enum value of
// [google.rpc.Code][google.rpc.Code].
// The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code].
int32 code = 1;
// A developer-facing error message, which should be in English. Any
// user-facing error message should be localized and sent in the
// [google.rpc.Status.details][google.rpc.Status.details] field, or localized
// by the client.
// [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client.
string message = 2;
// A list of messages that carry the error details. There is a common set of

View File

@ -90,6 +90,52 @@ import (
// If there is a cycle, then the pointed at values are considered equal
// only if both addresses were previously visited in the same path step.
func Equal(x, y interface{}, opts ...Option) bool {
s := newState(opts)
s.compareAny(rootStep(x, y))
return s.result.Equal()
}
// Diff returns a human-readable report of the differences between two values.
// It returns an empty string if and only if Equal returns true for the same
// input values and options.
//
// The output is displayed as a literal in pseudo-Go syntax.
// At the start of each line, a "-" prefix indicates an element removed from x,
// a "+" prefix to indicates an element added to y, and the lack of a prefix
// indicates an element common to both x and y. If possible, the output
// uses fmt.Stringer.String or error.Error methods to produce more humanly
// readable outputs. In such cases, the string is prefixed with either an
// 's' or 'e' character, respectively, to indicate that the method was called.
//
// Do not depend on this output being stable. If you need the ability to
// programmatically interpret the difference, consider using a custom Reporter.
func Diff(x, y interface{}, opts ...Option) string {
s := newState(opts)
// Optimization: If there are no other reporters, we can optimize for the
// common case where the result is equal (and thus no reported difference).
// This avoids the expensive construction of a difference tree.
if len(s.reporters) == 0 {
s.compareAny(rootStep(x, y))
if s.result.Equal() {
return ""
}
s.result = diff.Result{} // Reset results
}
r := new(defaultReporter)
s.reporters = append(s.reporters, reporter{r})
s.compareAny(rootStep(x, y))
d := r.String()
if (d == "") != s.result.Equal() {
panic("inconsistent difference and equality results")
}
return d
}
// rootStep constructs the first path step. If x and y have differing types,
// then they are stored within an empty interface type.
func rootStep(x, y interface{}) PathStep {
vx := reflect.ValueOf(x)
vy := reflect.ValueOf(y)
@ -112,33 +158,7 @@ func Equal(x, y interface{}, opts ...Option) bool {
t = vx.Type()
}
s := newState(opts)
s.compareAny(&pathStep{t, vx, vy})
return s.result.Equal()
}
// Diff returns a human-readable report of the differences between two values.
// It returns an empty string if and only if Equal returns true for the same
// input values and options.
//
// The output is displayed as a literal in pseudo-Go syntax.
// At the start of each line, a "-" prefix indicates an element removed from x,
// a "+" prefix to indicates an element added to y, and the lack of a prefix
// indicates an element common to both x and y. If possible, the output
// uses fmt.Stringer.String or error.Error methods to produce more humanly
// readable outputs. In such cases, the string is prefixed with either an
// 's' or 'e' character, respectively, to indicate that the method was called.
//
// Do not depend on this output being stable. If you need the ability to
// programmatically interpret the difference, consider using a custom Reporter.
func Diff(x, y interface{}, opts ...Option) string {
r := new(defaultReporter)
eq := Equal(x, y, Options(opts), Reporter(r))
d := r.String()
if (d == "") != eq {
panic("inconsistent difference and equality results")
}
return d
return &pathStep{t, vx, vy}
}
type state struct {
@ -356,7 +376,7 @@ func detectRaces(c chan<- reflect.Value, f reflect.Value, vs ...reflect.Value) {
// assuming that T is assignable to R.
// Otherwise, it returns the input value as is.
func sanitizeValue(v reflect.Value, t reflect.Type) reflect.Value {
// TODO(dsnet): Workaround for reflect bug (https://golang.org/issue/22143).
// TODO(≥go1.10): Workaround for reflect bug (https://golang.org/issue/22143).
if !flags.AtLeastGo110 {
if v.Kind() == reflect.Interface && v.IsNil() && v.Type() != t {
return reflect.New(t).Elem()
@ -366,6 +386,7 @@ func sanitizeValue(v reflect.Value, t reflect.Type) reflect.Value {
}
func (s *state) compareStruct(t reflect.Type, vx, vy reflect.Value) {
var addr bool
var vax, vay reflect.Value // Addressable versions of vx and vy
var mayForce, mayForceInit bool
@ -387,6 +408,7 @@ func (s *state) compareStruct(t reflect.Type, vx, vy reflect.Value) {
// For retrieveUnexportedField to work, the parent struct must
// be addressable. Create a new copy of the values if
// necessary to make them addressable.
addr = vx.CanAddr() || vy.CanAddr()
vax = makeAddressable(vx)
vay = makeAddressable(vy)
}
@ -397,6 +419,7 @@ func (s *state) compareStruct(t reflect.Type, vx, vy reflect.Value) {
mayForceInit = true
}
step.mayForce = mayForce
step.paddr = addr
step.pvx = vax
step.pvy = vay
step.field = t.Field(i)

View File

@ -10,6 +10,6 @@ import "reflect"
const supportExporters = false
func retrieveUnexportedField(reflect.Value, reflect.StructField) reflect.Value {
func retrieveUnexportedField(reflect.Value, reflect.StructField, bool) reflect.Value {
panic("no support for forcibly accessing unexported fields")
}

View File

@ -17,9 +17,19 @@ const supportExporters = true
// a struct such that the value has read-write permissions.
//
// The parent struct, v, must be addressable, while f must be a StructField
// describing the field to retrieve.
func retrieveUnexportedField(v reflect.Value, f reflect.StructField) reflect.Value {
// See https://github.com/google/go-cmp/issues/167 for discussion of the
// following expression.
return reflect.NewAt(f.Type, unsafe.Pointer(uintptr(unsafe.Pointer(v.UnsafeAddr()))+f.Offset)).Elem()
// describing the field to retrieve. If addr is false,
// then the returned value will be shallowed copied to be non-addressable.
func retrieveUnexportedField(v reflect.Value, f reflect.StructField, addr bool) reflect.Value {
ve := reflect.NewAt(f.Type, unsafe.Pointer(uintptr(unsafe.Pointer(v.UnsafeAddr()))+f.Offset)).Elem()
if !addr {
// A field is addressable if and only if the struct is addressable.
// If the original parent value was not addressable, shallow copy the
// value to make it non-addressable to avoid leaking an implementation
// detail of how forcibly exporting a field works.
if ve.Kind() == reflect.Interface && ve.IsNil() {
return reflect.Zero(f.Type)
}
return reflect.ValueOf(ve.Interface()).Convert(f.Type)
}
return ve
}

View File

@ -12,6 +12,13 @@
// is more important than obtaining a minimal Levenshtein distance.
package diff
import (
"math/rand"
"time"
"github.com/google/go-cmp/cmp/internal/flags"
)
// EditType represents a single operation within an edit-script.
type EditType uint8
@ -112,6 +119,8 @@ func (r Result) Similar() bool {
return r.NumSame+1 >= r.NumDiff
}
var randInt = rand.New(rand.NewSource(time.Now().Unix())).Intn(2)
// Difference reports whether two lists of lengths nx and ny are equal
// given the definition of equality provided as f.
//
@ -159,6 +168,17 @@ func Difference(nx, ny int, f EqualFunc) (es EditScript) {
// A vertical edge is equivalent to inserting a symbol from list Y.
// A diagonal edge is equivalent to a matching symbol between both X and Y.
// To ensure flexibility in changing the algorithm in the future,
// introduce some degree of deliberate instability.
// This is achieved by fiddling the zigzag iterator to start searching
// the graph starting from the bottom-right versus than the top-left.
// The result may differ depending on the starting search location,
// but still produces a valid edit script.
zigzagInit := randInt // either 0 or 1
if flags.Deterministic {
zigzagInit = 0
}
// Invariants:
// • 0 ≤ fwdPath.X ≤ (fwdFrontier.X, revFrontier.X) ≤ revPath.X ≤ nx
// • 0 ≤ fwdPath.Y ≤ (fwdFrontier.Y, revFrontier.Y) ≤ revPath.Y ≤ ny
@ -209,7 +229,7 @@ func Difference(nx, ny int, f EqualFunc) (es EditScript) {
if fwdFrontier.X >= revFrontier.X || fwdFrontier.Y >= revFrontier.Y || searchBudget == 0 {
break
}
for stop1, stop2, i := false, false, 0; !(stop1 && stop2) && searchBudget > 0; i++ {
for stop1, stop2, i := false, false, zigzagInit; !(stop1 && stop2) && searchBudget > 0; i++ {
// Search in a diagonal pattern for a match.
z := zigzag(i)
p := point{fwdFrontier.X + z, fwdFrontier.Y - z}

View File

@ -0,0 +1,157 @@
// Copyright 2020, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE.md file.
package value
import (
"reflect"
"strconv"
)
// TypeString is nearly identical to reflect.Type.String,
// but has an additional option to specify that full type names be used.
func TypeString(t reflect.Type, qualified bool) string {
return string(appendTypeName(nil, t, qualified, false))
}
func appendTypeName(b []byte, t reflect.Type, qualified, elideFunc bool) []byte {
// BUG: Go reflection provides no way to disambiguate two named types
// of the same name and within the same package,
// but declared within the namespace of different functions.
// Named type.
if t.Name() != "" {
if qualified && t.PkgPath() != "" {
b = append(b, '"')
b = append(b, t.PkgPath()...)
b = append(b, '"')
b = append(b, '.')
b = append(b, t.Name()...)
} else {
b = append(b, t.String()...)
}
return b
}
// Unnamed type.
switch k := t.Kind(); k {
case reflect.Bool, reflect.String, reflect.UnsafePointer,
reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr,
reflect.Float32, reflect.Float64, reflect.Complex64, reflect.Complex128:
b = append(b, k.String()...)
case reflect.Chan:
if t.ChanDir() == reflect.RecvDir {
b = append(b, "<-"...)
}
b = append(b, "chan"...)
if t.ChanDir() == reflect.SendDir {
b = append(b, "<-"...)
}
b = append(b, ' ')
b = appendTypeName(b, t.Elem(), qualified, false)
case reflect.Func:
if !elideFunc {
b = append(b, "func"...)
}
b = append(b, '(')
for i := 0; i < t.NumIn(); i++ {
if i > 0 {
b = append(b, ", "...)
}
if i == t.NumIn()-1 && t.IsVariadic() {
b = append(b, "..."...)
b = appendTypeName(b, t.In(i).Elem(), qualified, false)
} else {
b = appendTypeName(b, t.In(i), qualified, false)
}
}
b = append(b, ')')
switch t.NumOut() {
case 0:
// Do nothing
case 1:
b = append(b, ' ')
b = appendTypeName(b, t.Out(0), qualified, false)
default:
b = append(b, " ("...)
for i := 0; i < t.NumOut(); i++ {
if i > 0 {
b = append(b, ", "...)
}
b = appendTypeName(b, t.Out(i), qualified, false)
}
b = append(b, ')')
}
case reflect.Struct:
b = append(b, "struct{ "...)
for i := 0; i < t.NumField(); i++ {
if i > 0 {
b = append(b, "; "...)
}
sf := t.Field(i)
if !sf.Anonymous {
if qualified && sf.PkgPath != "" {
b = append(b, '"')
b = append(b, sf.PkgPath...)
b = append(b, '"')
b = append(b, '.')
}
b = append(b, sf.Name...)
b = append(b, ' ')
}
b = appendTypeName(b, sf.Type, qualified, false)
if sf.Tag != "" {
b = append(b, ' ')
b = strconv.AppendQuote(b, string(sf.Tag))
}
}
if b[len(b)-1] == ' ' {
b = b[:len(b)-1]
} else {
b = append(b, ' ')
}
b = append(b, '}')
case reflect.Slice, reflect.Array:
b = append(b, '[')
if k == reflect.Array {
b = strconv.AppendUint(b, uint64(t.Len()), 10)
}
b = append(b, ']')
b = appendTypeName(b, t.Elem(), qualified, false)
case reflect.Map:
b = append(b, "map["...)
b = appendTypeName(b, t.Key(), qualified, false)
b = append(b, ']')
b = appendTypeName(b, t.Elem(), qualified, false)
case reflect.Ptr:
b = append(b, '*')
b = appendTypeName(b, t.Elem(), qualified, false)
case reflect.Interface:
b = append(b, "interface{ "...)
for i := 0; i < t.NumMethod(); i++ {
if i > 0 {
b = append(b, "; "...)
}
m := t.Method(i)
if qualified && m.PkgPath != "" {
b = append(b, '"')
b = append(b, m.PkgPath...)
b = append(b, '"')
b = append(b, '.')
}
b = append(b, m.Name...)
b = appendTypeName(b, m.Type, qualified, true)
}
if b[len(b)-1] == ' ' {
b = b[:len(b)-1]
} else {
b = append(b, ' ')
}
b = append(b, '}')
default:
panic("invalid kind: " + k.String())
}
return b
}

View File

@ -21,3 +21,13 @@ func PointerOf(v reflect.Value) Pointer {
// assumes that the GC implementation does not use a moving collector.
return Pointer{v.Pointer(), v.Type()}
}
// IsNil reports whether the pointer is nil.
func (p Pointer) IsNil() bool {
return p.p == 0
}
// Uintptr returns the pointer as a uintptr.
func (p Pointer) Uintptr() uintptr {
return p.p
}

View File

@ -24,3 +24,13 @@ func PointerOf(v reflect.Value) Pointer {
// which is necessary if the GC ever uses a moving collector.
return Pointer{unsafe.Pointer(v.Pointer()), v.Type()}
}
// IsNil reports whether the pointer is nil.
func (p Pointer) IsNil() bool {
return p.p == nil
}
// Uintptr returns the pointer as a uintptr.
func (p Pointer) Uintptr() uintptr {
return uintptr(p.p)
}

View File

@ -177,7 +177,8 @@ type structField struct {
// pvx, pvy, and field are only valid if unexported is true.
unexported bool
mayForce bool // Forcibly allow visibility
pvx, pvy reflect.Value // Parent values
paddr bool // Was parent addressable?
pvx, pvy reflect.Value // Parent values (always addressible)
field reflect.StructField // Field information
}
@ -189,8 +190,8 @@ func (sf StructField) Values() (vx, vy reflect.Value) {
// Forcibly obtain read-write access to an unexported struct field.
if sf.mayForce {
vx = retrieveUnexportedField(sf.pvx, sf.field)
vy = retrieveUnexportedField(sf.pvy, sf.field)
vx = retrieveUnexportedField(sf.pvx, sf.field, sf.paddr)
vy = retrieveUnexportedField(sf.pvy, sf.field, sf.paddr)
return vx, vy // CanInterface reports true
}
return sf.vx, sf.vy // CanInterface reports false

View File

@ -41,7 +41,10 @@ func (r *defaultReporter) String() string {
if r.root.NumDiff == 0 {
return ""
}
return formatOptions{}.FormatDiff(r.root).String()
ptrs := new(pointerReferences)
text := formatOptions{}.FormatDiff(r.root, ptrs)
resolveReferences(text)
return text.String()
}
func assert(ok bool) {

View File

@ -11,14 +11,6 @@ import (
"github.com/google/go-cmp/cmp/internal/value"
)
// TODO: Enforce limits?
// * Enforce maximum number of records to print per node?
// * Enforce maximum size in bytes allowed?
// * As a heuristic, use less verbosity for equal nodes than unequal nodes.
// TODO: Enforce unique outputs?
// * Avoid Stringer methods if it results in same output?
// * Print pointer address if outputs still equal?
// numContextRecords is the number of surrounding equal records to print.
const numContextRecords = 2
@ -71,19 +63,56 @@ func (opts formatOptions) WithTypeMode(t typeMode) formatOptions {
opts.TypeMode = t
return opts
}
func (opts formatOptions) WithVerbosity(level int) formatOptions {
opts.VerbosityLevel = level
opts.LimitVerbosity = true
return opts
}
func (opts formatOptions) verbosity() uint {
switch {
case opts.VerbosityLevel < 0:
return 0
case opts.VerbosityLevel > 16:
return 16 // some reasonable maximum to avoid shift overflow
default:
return uint(opts.VerbosityLevel)
}
}
const maxVerbosityPreset = 3
// verbosityPreset modifies the verbosity settings given an index
// between 0 and maxVerbosityPreset, inclusive.
func verbosityPreset(opts formatOptions, i int) formatOptions {
opts.VerbosityLevel = int(opts.verbosity()) + 2*i
if i > 0 {
opts.AvoidStringer = true
}
if i >= maxVerbosityPreset {
opts.PrintAddresses = true
opts.QualifiedNames = true
}
return opts
}
// FormatDiff converts a valueNode tree into a textNode tree, where the later
// is a textual representation of the differences detected in the former.
func (opts formatOptions) FormatDiff(v *valueNode) textNode {
func (opts formatOptions) FormatDiff(v *valueNode, ptrs *pointerReferences) (out textNode) {
if opts.DiffMode == diffIdentical {
opts = opts.WithVerbosity(1)
} else {
opts = opts.WithVerbosity(3)
}
// Check whether we have specialized formatting for this node.
// This is not necessary, but helpful for producing more readable outputs.
if opts.CanFormatDiffSlice(v) {
return opts.FormatDiffSlice(v)
}
var withinSlice bool
if v.parent != nil && (v.parent.Type.Kind() == reflect.Slice || v.parent.Type.Kind() == reflect.Array) {
withinSlice = true
var parentKind reflect.Kind
if v.parent != nil && v.parent.TransformerName == "" {
parentKind = v.parent.Type.Kind()
}
// For leaf nodes, format the value based on the reflect.Values alone.
@ -92,8 +121,8 @@ func (opts formatOptions) FormatDiff(v *valueNode) textNode {
case diffUnknown, diffIdentical:
// Format Equal.
if v.NumDiff == 0 {
outx := opts.FormatValue(v.ValueX, withinSlice, visitedPointers{})
outy := opts.FormatValue(v.ValueY, withinSlice, visitedPointers{})
outx := opts.FormatValue(v.ValueX, parentKind, ptrs)
outy := opts.FormatValue(v.ValueY, parentKind, ptrs)
if v.NumIgnored > 0 && v.NumSame == 0 {
return textEllipsis
} else if outx.Len() < outy.Len() {
@ -106,8 +135,13 @@ func (opts formatOptions) FormatDiff(v *valueNode) textNode {
// Format unequal.
assert(opts.DiffMode == diffUnknown)
var list textList
outx := opts.WithTypeMode(elideType).FormatValue(v.ValueX, withinSlice, visitedPointers{})
outy := opts.WithTypeMode(elideType).FormatValue(v.ValueY, withinSlice, visitedPointers{})
outx := opts.WithTypeMode(elideType).FormatValue(v.ValueX, parentKind, ptrs)
outy := opts.WithTypeMode(elideType).FormatValue(v.ValueY, parentKind, ptrs)
for i := 0; i <= maxVerbosityPreset && outx != nil && outy != nil && outx.Equal(outy); i++ {
opts2 := verbosityPreset(opts, i).WithTypeMode(elideType)
outx = opts2.FormatValue(v.ValueX, parentKind, ptrs)
outy = opts2.FormatValue(v.ValueY, parentKind, ptrs)
}
if outx != nil {
list = append(list, textRecord{Diff: '-', Value: outx})
}
@ -116,34 +150,57 @@ func (opts formatOptions) FormatDiff(v *valueNode) textNode {
}
return opts.WithTypeMode(emitType).FormatType(v.Type, list)
case diffRemoved:
return opts.FormatValue(v.ValueX, withinSlice, visitedPointers{})
return opts.FormatValue(v.ValueX, parentKind, ptrs)
case diffInserted:
return opts.FormatValue(v.ValueY, withinSlice, visitedPointers{})
return opts.FormatValue(v.ValueY, parentKind, ptrs)
default:
panic("invalid diff mode")
}
}
// Register slice element to support cycle detection.
if parentKind == reflect.Slice {
ptrRefs := ptrs.PushPair(v.ValueX, v.ValueY, opts.DiffMode, true)
defer ptrs.Pop()
defer func() { out = wrapTrunkReferences(ptrRefs, out) }()
}
// Descend into the child value node.
if v.TransformerName != "" {
out := opts.WithTypeMode(emitType).FormatDiff(v.Value)
out = textWrap{"Inverse(" + v.TransformerName + ", ", out, ")"}
out := opts.WithTypeMode(emitType).FormatDiff(v.Value, ptrs)
out = &textWrap{Prefix: "Inverse(" + v.TransformerName + ", ", Value: out, Suffix: ")"}
return opts.FormatType(v.Type, out)
} else {
switch k := v.Type.Kind(); k {
case reflect.Struct, reflect.Array, reflect.Slice, reflect.Map:
return opts.FormatType(v.Type, opts.formatDiffList(v.Records, k))
case reflect.Struct, reflect.Array, reflect.Slice:
out = opts.formatDiffList(v.Records, k, ptrs)
out = opts.FormatType(v.Type, out)
case reflect.Map:
// Register map to support cycle detection.
ptrRefs := ptrs.PushPair(v.ValueX, v.ValueY, opts.DiffMode, false)
defer ptrs.Pop()
out = opts.formatDiffList(v.Records, k, ptrs)
out = wrapTrunkReferences(ptrRefs, out)
out = opts.FormatType(v.Type, out)
case reflect.Ptr:
return textWrap{"&", opts.FormatDiff(v.Value), ""}
// Register pointer to support cycle detection.
ptrRefs := ptrs.PushPair(v.ValueX, v.ValueY, opts.DiffMode, false)
defer ptrs.Pop()
out = opts.FormatDiff(v.Value, ptrs)
out = wrapTrunkReferences(ptrRefs, out)
out = &textWrap{Prefix: "&", Value: out}
case reflect.Interface:
return opts.WithTypeMode(emitType).FormatDiff(v.Value)
out = opts.WithTypeMode(emitType).FormatDiff(v.Value, ptrs)
default:
panic(fmt.Sprintf("%v cannot have children", k))
}
return out
}
}
func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind) textNode {
func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind, ptrs *pointerReferences) textNode {
// Derive record name based on the data structure kind.
var name string
var formatKey func(reflect.Value) string
@ -159,7 +216,17 @@ func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind) te
case reflect.Map:
name = "entry"
opts = opts.WithTypeMode(elideType)
formatKey = formatMapKey
formatKey = func(v reflect.Value) string { return formatMapKey(v, false, ptrs) }
}
maxLen := -1
if opts.LimitVerbosity {
if opts.DiffMode == diffIdentical {
maxLen = ((1 << opts.verbosity()) >> 1) << 2 // 0, 4, 8, 16, 32, etc...
} else {
maxLen = (1 << opts.verbosity()) << 1 // 2, 4, 8, 16, 32, 64, etc...
}
opts.VerbosityLevel--
}
// Handle unification.
@ -168,6 +235,11 @@ func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind) te
var list textList
var deferredEllipsis bool // Add final "..." to indicate records were dropped
for _, r := range recs {
if len(list) == maxLen {
deferredEllipsis = true
break
}
// Elide struct fields that are zero value.
if k == reflect.Struct {
var isZero bool
@ -191,23 +263,31 @@ func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind) te
}
continue
}
if out := opts.FormatDiff(r.Value); out != nil {
if out := opts.FormatDiff(r.Value, ptrs); out != nil {
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
}
}
if deferredEllipsis {
list.AppendEllipsis(diffStats{})
}
return textWrap{"{", list, "}"}
return &textWrap{Prefix: "{", Value: list, Suffix: "}"}
case diffUnknown:
default:
panic("invalid diff mode")
}
// Handle differencing.
var numDiffs int
var list textList
var keys []reflect.Value // invariant: len(list) == len(keys)
groups := coalesceAdjacentRecords(name, recs)
maxGroup := diffStats{Name: name}
for i, ds := range groups {
if maxLen >= 0 && numDiffs >= maxLen {
maxGroup = maxGroup.Append(ds)
continue
}
// Handle equal records.
if ds.NumDiff() == 0 {
// Compute the number of leading and trailing records to print.
@ -231,16 +311,21 @@ func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind) te
// Format the equal values.
for _, r := range recs[:numLo] {
out := opts.WithDiffMode(diffIdentical).FormatDiff(r.Value)
out := opts.WithDiffMode(diffIdentical).FormatDiff(r.Value, ptrs)
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
keys = append(keys, r.Key)
}
if numEqual > numLo+numHi {
ds.NumIdentical -= numLo + numHi
list.AppendEllipsis(ds)
for len(keys) < len(list) {
keys = append(keys, reflect.Value{})
}
}
for _, r := range recs[numEqual-numHi : numEqual] {
out := opts.WithDiffMode(diffIdentical).FormatDiff(r.Value)
out := opts.WithDiffMode(diffIdentical).FormatDiff(r.Value, ptrs)
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
keys = append(keys, r.Key)
}
recs = recs[numEqual:]
continue
@ -252,24 +337,70 @@ func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind) te
case opts.CanFormatDiffSlice(r.Value):
out := opts.FormatDiffSlice(r.Value)
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
keys = append(keys, r.Key)
case r.Value.NumChildren == r.Value.MaxDepth:
outx := opts.WithDiffMode(diffRemoved).FormatDiff(r.Value)
outy := opts.WithDiffMode(diffInserted).FormatDiff(r.Value)
outx := opts.WithDiffMode(diffRemoved).FormatDiff(r.Value, ptrs)
outy := opts.WithDiffMode(diffInserted).FormatDiff(r.Value, ptrs)
for i := 0; i <= maxVerbosityPreset && outx != nil && outy != nil && outx.Equal(outy); i++ {
opts2 := verbosityPreset(opts, i)
outx = opts2.WithDiffMode(diffRemoved).FormatDiff(r.Value, ptrs)
outy = opts2.WithDiffMode(diffInserted).FormatDiff(r.Value, ptrs)
}
if outx != nil {
list = append(list, textRecord{Diff: diffRemoved, Key: formatKey(r.Key), Value: outx})
keys = append(keys, r.Key)
}
if outy != nil {
list = append(list, textRecord{Diff: diffInserted, Key: formatKey(r.Key), Value: outy})
keys = append(keys, r.Key)
}
default:
out := opts.FormatDiff(r.Value)
out := opts.FormatDiff(r.Value, ptrs)
list = append(list, textRecord{Key: formatKey(r.Key), Value: out})
keys = append(keys, r.Key)
}
}
recs = recs[ds.NumDiff():]
numDiffs += ds.NumDiff()
}
assert(len(recs) == 0)
return textWrap{"{", list, "}"}
if maxGroup.IsZero() {
assert(len(recs) == 0)
} else {
list.AppendEllipsis(maxGroup)
for len(keys) < len(list) {
keys = append(keys, reflect.Value{})
}
}
assert(len(list) == len(keys))
// For maps, the default formatting logic uses fmt.Stringer which may
// produce ambiguous output. Avoid calling String to disambiguate.
if k == reflect.Map {
var ambiguous bool
seenKeys := map[string]reflect.Value{}
for i, currKey := range keys {
if currKey.IsValid() {
strKey := list[i].Key
prevKey, seen := seenKeys[strKey]
if seen && prevKey.CanInterface() && currKey.CanInterface() {
ambiguous = prevKey.Interface() != currKey.Interface()
if ambiguous {
break
}
}
seenKeys[strKey] = currKey
}
}
if ambiguous {
for i, k := range keys {
if k.IsValid() {
list[i].Key = formatMapKey(k, true, ptrs)
}
}
}
}
return &textWrap{Prefix: "{", Value: list, Suffix: "}"}
}
// coalesceAdjacentRecords coalesces the list of records into groups of

View File

@ -0,0 +1,264 @@
// Copyright 2020, The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE.md file.
package cmp
import (
"fmt"
"reflect"
"strings"
"github.com/google/go-cmp/cmp/internal/flags"
"github.com/google/go-cmp/cmp/internal/value"
)
const (
pointerDelimPrefix = "⟪"
pointerDelimSuffix = "⟫"
)
// formatPointer prints the address of the pointer.
func formatPointer(p value.Pointer, withDelims bool) string {
v := p.Uintptr()
if flags.Deterministic {
v = 0xdeadf00f // Only used for stable testing purposes
}
if withDelims {
return pointerDelimPrefix + formatHex(uint64(v)) + pointerDelimSuffix
}
return formatHex(uint64(v))
}
// pointerReferences is a stack of pointers visited so far.
type pointerReferences [][2]value.Pointer
func (ps *pointerReferences) PushPair(vx, vy reflect.Value, d diffMode, deref bool) (pp [2]value.Pointer) {
if deref && vx.IsValid() {
vx = vx.Addr()
}
if deref && vy.IsValid() {
vy = vy.Addr()
}
switch d {
case diffUnknown, diffIdentical:
pp = [2]value.Pointer{value.PointerOf(vx), value.PointerOf(vy)}
case diffRemoved:
pp = [2]value.Pointer{value.PointerOf(vx), value.Pointer{}}
case diffInserted:
pp = [2]value.Pointer{value.Pointer{}, value.PointerOf(vy)}
}
*ps = append(*ps, pp)
return pp
}
func (ps *pointerReferences) Push(v reflect.Value) (p value.Pointer, seen bool) {
p = value.PointerOf(v)
for _, pp := range *ps {
if p == pp[0] || p == pp[1] {
return p, true
}
}
*ps = append(*ps, [2]value.Pointer{p, p})
return p, false
}
func (ps *pointerReferences) Pop() {
*ps = (*ps)[:len(*ps)-1]
}
// trunkReferences is metadata for a textNode indicating that the sub-tree
// represents the value for either pointer in a pair of references.
type trunkReferences struct{ pp [2]value.Pointer }
// trunkReference is metadata for a textNode indicating that the sub-tree
// represents the value for the given pointer reference.
type trunkReference struct{ p value.Pointer }
// leafReference is metadata for a textNode indicating that the value is
// truncated as it refers to another part of the tree (i.e., a trunk).
type leafReference struct{ p value.Pointer }
func wrapTrunkReferences(pp [2]value.Pointer, s textNode) textNode {
switch {
case pp[0].IsNil():
return &textWrap{Value: s, Metadata: trunkReference{pp[1]}}
case pp[1].IsNil():
return &textWrap{Value: s, Metadata: trunkReference{pp[0]}}
case pp[0] == pp[1]:
return &textWrap{Value: s, Metadata: trunkReference{pp[0]}}
default:
return &textWrap{Value: s, Metadata: trunkReferences{pp}}
}
}
func wrapTrunkReference(p value.Pointer, printAddress bool, s textNode) textNode {
var prefix string
if printAddress {
prefix = formatPointer(p, true)
}
return &textWrap{Prefix: prefix, Value: s, Metadata: trunkReference{p}}
}
func makeLeafReference(p value.Pointer, printAddress bool) textNode {
out := &textWrap{Prefix: "(", Value: textEllipsis, Suffix: ")"}
var prefix string
if printAddress {
prefix = formatPointer(p, true)
}
return &textWrap{Prefix: prefix, Value: out, Metadata: leafReference{p}}
}
// resolveReferences walks the textNode tree searching for any leaf reference
// metadata and resolves each against the corresponding trunk references.
// Since pointer addresses in memory are not particularly readable to the user,
// it replaces each pointer value with an arbitrary and unique reference ID.
func resolveReferences(s textNode) {
var walkNodes func(textNode, func(textNode))
walkNodes = func(s textNode, f func(textNode)) {
f(s)
switch s := s.(type) {
case *textWrap:
walkNodes(s.Value, f)
case textList:
for _, r := range s {
walkNodes(r.Value, f)
}
}
}
// Collect all trunks and leaves with reference metadata.
var trunks, leaves []*textWrap
walkNodes(s, func(s textNode) {
if s, ok := s.(*textWrap); ok {
switch s.Metadata.(type) {
case leafReference:
leaves = append(leaves, s)
case trunkReference, trunkReferences:
trunks = append(trunks, s)
}
}
})
// No leaf references to resolve.
if len(leaves) == 0 {
return
}
// Collect the set of all leaf references to resolve.
leafPtrs := make(map[value.Pointer]bool)
for _, leaf := range leaves {
leafPtrs[leaf.Metadata.(leafReference).p] = true
}
// Collect the set of trunk pointers that are always paired together.
// This allows us to assign a single ID to both pointers for brevity.
// If a pointer in a pair ever occurs by itself or as a different pair,
// then the pair is broken.
pairedTrunkPtrs := make(map[value.Pointer]value.Pointer)
unpair := func(p value.Pointer) {
if !pairedTrunkPtrs[p].IsNil() {
pairedTrunkPtrs[pairedTrunkPtrs[p]] = value.Pointer{} // invalidate other half
}
pairedTrunkPtrs[p] = value.Pointer{} // invalidate this half
}
for _, trunk := range trunks {
switch p := trunk.Metadata.(type) {
case trunkReference:
unpair(p.p) // standalone pointer cannot be part of a pair
case trunkReferences:
p0, ok0 := pairedTrunkPtrs[p.pp[0]]
p1, ok1 := pairedTrunkPtrs[p.pp[1]]
switch {
case !ok0 && !ok1:
// Register the newly seen pair.
pairedTrunkPtrs[p.pp[0]] = p.pp[1]
pairedTrunkPtrs[p.pp[1]] = p.pp[0]
case ok0 && ok1 && p0 == p.pp[1] && p1 == p.pp[0]:
// Exact pair already seen; do nothing.
default:
// Pair conflicts with some other pair; break all pairs.
unpair(p.pp[0])
unpair(p.pp[1])
}
}
}
// Correlate each pointer referenced by leaves to a unique identifier,
// and print the IDs for each trunk that matches those pointers.
var nextID uint
ptrIDs := make(map[value.Pointer]uint)
newID := func() uint {
id := nextID
nextID++
return id
}
for _, trunk := range trunks {
switch p := trunk.Metadata.(type) {
case trunkReference:
if print := leafPtrs[p.p]; print {
id, ok := ptrIDs[p.p]
if !ok {
id = newID()
ptrIDs[p.p] = id
}
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id))
}
case trunkReferences:
print0 := leafPtrs[p.pp[0]]
print1 := leafPtrs[p.pp[1]]
if print0 || print1 {
id0, ok0 := ptrIDs[p.pp[0]]
id1, ok1 := ptrIDs[p.pp[1]]
isPair := pairedTrunkPtrs[p.pp[0]] == p.pp[1] && pairedTrunkPtrs[p.pp[1]] == p.pp[0]
if isPair {
var id uint
assert(ok0 == ok1) // must be seen together or not at all
if ok0 {
assert(id0 == id1) // must have the same ID
id = id0
} else {
id = newID()
ptrIDs[p.pp[0]] = id
ptrIDs[p.pp[1]] = id
}
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id))
} else {
if print0 && !ok0 {
id0 = newID()
ptrIDs[p.pp[0]] = id0
}
if print1 && !ok1 {
id1 = newID()
ptrIDs[p.pp[1]] = id1
}
switch {
case print0 && print1:
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id0)+","+formatReference(id1))
case print0:
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id0))
case print1:
trunk.Prefix = updateReferencePrefix(trunk.Prefix, formatReference(id1))
}
}
}
}
}
// Update all leaf references with the unique identifier.
for _, leaf := range leaves {
if id, ok := ptrIDs[leaf.Metadata.(leafReference).p]; ok {
leaf.Prefix = updateReferencePrefix(leaf.Prefix, formatReference(id))
}
}
}
func formatReference(id uint) string {
return fmt.Sprintf("ref#%d", id)
}
func updateReferencePrefix(prefix, ref string) string {
if prefix == "" {
return pointerDelimPrefix + ref + pointerDelimSuffix
}
suffix := strings.TrimPrefix(prefix, pointerDelimPrefix)
return pointerDelimPrefix + ref + ": " + suffix
}

View File

@ -5,13 +5,14 @@
package cmp
import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
"unicode"
"unicode/utf8"
"github.com/google/go-cmp/cmp/internal/flags"
"github.com/google/go-cmp/cmp/internal/value"
)
@ -20,14 +21,22 @@ type formatValueOptions struct {
// methods like error.Error or fmt.Stringer.String.
AvoidStringer bool
// ShallowPointers controls whether to avoid descending into pointers.
// Useful when printing map keys, where pointer comparison is performed
// on the pointer address rather than the pointed-at value.
ShallowPointers bool
// PrintAddresses controls whether to print the address of all pointers,
// slice elements, and maps.
PrintAddresses bool
// QualifiedNames controls whether FormatType uses the fully qualified name
// (including the full package path as opposed to just the package name).
QualifiedNames bool
// VerbosityLevel controls the amount of output to produce.
// A higher value produces more output. A value of zero or lower produces
// no output (represented using an ellipsis).
// If LimitVerbosity is false, then the level is treated as infinite.
VerbosityLevel int
// LimitVerbosity specifies that formatting should respect VerbosityLevel.
LimitVerbosity bool
}
// FormatType prints the type as if it were wrapping s.
@ -44,12 +53,15 @@ func (opts formatOptions) FormatType(t reflect.Type, s textNode) textNode {
default:
return s
}
if opts.DiffMode == diffIdentical {
return s // elide type for identical nodes
}
case elideType:
return s
}
// Determine the type label, applying special handling for unnamed types.
typeName := t.String()
typeName := value.TypeString(t, opts.QualifiedNames)
if t.Name() == "" {
// According to Go grammar, certain type literals contain symbols that
// do not strongly bind to the next lexicographical token (e.g., *T).
@ -57,39 +69,77 @@ func (opts formatOptions) FormatType(t reflect.Type, s textNode) textNode {
case reflect.Chan, reflect.Func, reflect.Ptr:
typeName = "(" + typeName + ")"
}
typeName = strings.Replace(typeName, "struct {", "struct{", -1)
typeName = strings.Replace(typeName, "interface {", "interface{", -1)
}
return &textWrap{Prefix: typeName, Value: wrapParens(s)}
}
// Avoid wrap the value in parenthesis if unnecessary.
if s, ok := s.(textWrap); ok {
hasParens := strings.HasPrefix(s.Prefix, "(") && strings.HasSuffix(s.Suffix, ")")
hasBraces := strings.HasPrefix(s.Prefix, "{") && strings.HasSuffix(s.Suffix, "}")
// wrapParens wraps s with a set of parenthesis, but avoids it if the
// wrapped node itself is already surrounded by a pair of parenthesis or braces.
// It handles unwrapping one level of pointer-reference nodes.
func wrapParens(s textNode) textNode {
var refNode *textWrap
if s2, ok := s.(*textWrap); ok {
// Unwrap a single pointer reference node.
switch s2.Metadata.(type) {
case leafReference, trunkReference, trunkReferences:
refNode = s2
if s3, ok := refNode.Value.(*textWrap); ok {
s2 = s3
}
}
// Already has delimiters that make parenthesis unnecessary.
hasParens := strings.HasPrefix(s2.Prefix, "(") && strings.HasSuffix(s2.Suffix, ")")
hasBraces := strings.HasPrefix(s2.Prefix, "{") && strings.HasSuffix(s2.Suffix, "}")
if hasParens || hasBraces {
return textWrap{typeName, s, ""}
return s
}
}
return textWrap{typeName + "(", s, ")"}
if refNode != nil {
refNode.Value = &textWrap{Prefix: "(", Value: refNode.Value, Suffix: ")"}
return s
}
return &textWrap{Prefix: "(", Value: s, Suffix: ")"}
}
// FormatValue prints the reflect.Value, taking extra care to avoid descending
// into pointers already in m. As pointers are visited, m is also updated.
func (opts formatOptions) FormatValue(v reflect.Value, withinSlice bool, m visitedPointers) (out textNode) {
// into pointers already in ptrs. As pointers are visited, ptrs is also updated.
func (opts formatOptions) FormatValue(v reflect.Value, parentKind reflect.Kind, ptrs *pointerReferences) (out textNode) {
if !v.IsValid() {
return nil
}
t := v.Type()
// Check slice element for cycles.
if parentKind == reflect.Slice {
ptrRef, visited := ptrs.Push(v.Addr())
if visited {
return makeLeafReference(ptrRef, false)
}
defer ptrs.Pop()
defer func() { out = wrapTrunkReference(ptrRef, false, out) }()
}
// Check whether there is an Error or String method to call.
if !opts.AvoidStringer && v.CanInterface() {
// Avoid calling Error or String methods on nil receivers since many
// implementations crash when doing so.
if (t.Kind() != reflect.Ptr && t.Kind() != reflect.Interface) || !v.IsNil() {
switch v := v.Interface().(type) {
case error:
return textLine("e" + formatString(v.Error()))
case fmt.Stringer:
return textLine("s" + formatString(v.String()))
var prefix, strVal string
func() {
// Swallow and ignore any panics from String or Error.
defer func() { recover() }()
switch v := v.Interface().(type) {
case error:
strVal = v.Error()
prefix = "e"
case fmt.Stringer:
strVal = v.String()
prefix = "s"
}
}()
if prefix != "" {
return opts.formatString(prefix, strVal)
}
}
}
@ -102,7 +152,6 @@ func (opts formatOptions) FormatValue(v reflect.Value, withinSlice bool, m visit
}
}()
var ptr string
switch t.Kind() {
case reflect.Bool:
return textLine(fmt.Sprint(v.Bool()))
@ -111,7 +160,7 @@ func (opts formatOptions) FormatValue(v reflect.Value, withinSlice bool, m visit
case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return textLine(fmt.Sprint(v.Uint()))
case reflect.Uint8:
if withinSlice {
if parentKind == reflect.Slice || parentKind == reflect.Array {
return textLine(formatHex(v.Uint()))
}
return textLine(fmt.Sprint(v.Uint()))
@ -122,77 +171,121 @@ func (opts formatOptions) FormatValue(v reflect.Value, withinSlice bool, m visit
case reflect.Complex64, reflect.Complex128:
return textLine(fmt.Sprint(v.Complex()))
case reflect.String:
return textLine(formatString(v.String()))
return opts.formatString("", v.String())
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
return textLine(formatPointer(v))
return textLine(formatPointer(value.PointerOf(v), true))
case reflect.Struct:
var list textList
v := makeAddressable(v) // needed for retrieveUnexportedField
maxLen := v.NumField()
if opts.LimitVerbosity {
maxLen = ((1 << opts.verbosity()) >> 1) << 2 // 0, 4, 8, 16, 32, etc...
opts.VerbosityLevel--
}
for i := 0; i < v.NumField(); i++ {
vv := v.Field(i)
if value.IsZero(vv) {
continue // Elide fields with zero values
}
s := opts.WithTypeMode(autoType).FormatValue(vv, false, m)
list = append(list, textRecord{Key: t.Field(i).Name, Value: s})
if len(list) == maxLen {
list.AppendEllipsis(diffStats{})
break
}
sf := t.Field(i)
if supportExporters && !isExported(sf.Name) {
vv = retrieveUnexportedField(v, sf, true)
}
s := opts.WithTypeMode(autoType).FormatValue(vv, t.Kind(), ptrs)
list = append(list, textRecord{Key: sf.Name, Value: s})
}
return textWrap{"{", list, "}"}
return &textWrap{Prefix: "{", Value: list, Suffix: "}"}
case reflect.Slice:
if v.IsNil() {
return textNil
}
if opts.PrintAddresses {
ptr = formatPointer(v)
// Check whether this is a []byte of text data.
if t.Elem() == reflect.TypeOf(byte(0)) {
b := v.Bytes()
isPrintSpace := func(r rune) bool { return unicode.IsPrint(r) && unicode.IsSpace(r) }
if len(b) > 0 && utf8.Valid(b) && len(bytes.TrimFunc(b, isPrintSpace)) == 0 {
out = opts.formatString("", string(b))
return opts.WithTypeMode(emitType).FormatType(t, out)
}
}
fallthrough
case reflect.Array:
maxLen := v.Len()
if opts.LimitVerbosity {
maxLen = ((1 << opts.verbosity()) >> 1) << 2 // 0, 4, 8, 16, 32, etc...
opts.VerbosityLevel--
}
var list textList
for i := 0; i < v.Len(); i++ {
vi := v.Index(i)
if vi.CanAddr() { // Check for cyclic elements
p := vi.Addr()
if m.Visit(p) {
var out textNode
out = textLine(formatPointer(p))
out = opts.WithTypeMode(emitType).FormatType(p.Type(), out)
out = textWrap{"*", out, ""}
list = append(list, textRecord{Value: out})
continue
}
if len(list) == maxLen {
list.AppendEllipsis(diffStats{})
break
}
s := opts.WithTypeMode(elideType).FormatValue(vi, true, m)
s := opts.WithTypeMode(elideType).FormatValue(v.Index(i), t.Kind(), ptrs)
list = append(list, textRecord{Value: s})
}
return textWrap{ptr + "{", list, "}"}
out = &textWrap{Prefix: "{", Value: list, Suffix: "}"}
if t.Kind() == reflect.Slice && opts.PrintAddresses {
header := fmt.Sprintf("ptr:%v, len:%d, cap:%d", formatPointer(value.PointerOf(v), false), v.Len(), v.Cap())
out = &textWrap{Prefix: pointerDelimPrefix + header + pointerDelimSuffix, Value: out}
}
return out
case reflect.Map:
if v.IsNil() {
return textNil
}
if m.Visit(v) {
return textLine(formatPointer(v))
}
// Check pointer for cycles.
ptrRef, visited := ptrs.Push(v)
if visited {
return makeLeafReference(ptrRef, opts.PrintAddresses)
}
defer ptrs.Pop()
maxLen := v.Len()
if opts.LimitVerbosity {
maxLen = ((1 << opts.verbosity()) >> 1) << 2 // 0, 4, 8, 16, 32, etc...
opts.VerbosityLevel--
}
var list textList
for _, k := range value.SortKeys(v.MapKeys()) {
sk := formatMapKey(k)
sv := opts.WithTypeMode(elideType).FormatValue(v.MapIndex(k), false, m)
if len(list) == maxLen {
list.AppendEllipsis(diffStats{})
break
}
sk := formatMapKey(k, false, ptrs)
sv := opts.WithTypeMode(elideType).FormatValue(v.MapIndex(k), t.Kind(), ptrs)
list = append(list, textRecord{Key: sk, Value: sv})
}
if opts.PrintAddresses {
ptr = formatPointer(v)
}
return textWrap{ptr + "{", list, "}"}
out = &textWrap{Prefix: "{", Value: list, Suffix: "}"}
out = wrapTrunkReference(ptrRef, opts.PrintAddresses, out)
return out
case reflect.Ptr:
if v.IsNil() {
return textNil
}
if m.Visit(v) || opts.ShallowPointers {
return textLine(formatPointer(v))
}
if opts.PrintAddresses {
ptr = formatPointer(v)
// Check pointer for cycles.
ptrRef, visited := ptrs.Push(v)
if visited {
out = makeLeafReference(ptrRef, opts.PrintAddresses)
return &textWrap{Prefix: "&", Value: out}
}
defer ptrs.Pop()
skipType = true // Let the underlying value print the type instead
return textWrap{"&" + ptr, opts.FormatValue(v.Elem(), false, m), ""}
out = opts.FormatValue(v.Elem(), t.Kind(), ptrs)
out = wrapTrunkReference(ptrRef, opts.PrintAddresses, out)
out = &textWrap{Prefix: "&", Value: out}
return out
case reflect.Interface:
if v.IsNil() {
return textNil
@ -200,19 +293,65 @@ func (opts formatOptions) FormatValue(v reflect.Value, withinSlice bool, m visit
// Interfaces accept different concrete types,
// so configure the underlying value to explicitly print the type.
skipType = true // Print the concrete type instead
return opts.WithTypeMode(emitType).FormatValue(v.Elem(), false, m)
return opts.WithTypeMode(emitType).FormatValue(v.Elem(), t.Kind(), ptrs)
default:
panic(fmt.Sprintf("%v kind not handled", v.Kind()))
}
}
func (opts formatOptions) formatString(prefix, s string) textNode {
maxLen := len(s)
maxLines := strings.Count(s, "\n") + 1
if opts.LimitVerbosity {
maxLen = (1 << opts.verbosity()) << 5 // 32, 64, 128, 256, etc...
maxLines = (1 << opts.verbosity()) << 2 // 4, 8, 16, 32, 64, etc...
}
// For multiline strings, use the triple-quote syntax,
// but only use it when printing removed or inserted nodes since
// we only want the extra verbosity for those cases.
lines := strings.Split(strings.TrimSuffix(s, "\n"), "\n")
isTripleQuoted := len(lines) >= 4 && (opts.DiffMode == '-' || opts.DiffMode == '+')
for i := 0; i < len(lines) && isTripleQuoted; i++ {
lines[i] = strings.TrimPrefix(strings.TrimSuffix(lines[i], "\r"), "\r") // trim leading/trailing carriage returns for legacy Windows endline support
isPrintable := func(r rune) bool {
return unicode.IsPrint(r) || r == '\t' // specially treat tab as printable
}
line := lines[i]
isTripleQuoted = !strings.HasPrefix(strings.TrimPrefix(line, prefix), `"""`) && !strings.HasPrefix(line, "...") && strings.TrimFunc(line, isPrintable) == "" && len(line) <= maxLen
}
if isTripleQuoted {
var list textList
list = append(list, textRecord{Diff: opts.DiffMode, Value: textLine(prefix + `"""`), ElideComma: true})
for i, line := range lines {
if numElided := len(lines) - i; i == maxLines-1 && numElided > 1 {
comment := commentString(fmt.Sprintf("%d elided lines", numElided))
list = append(list, textRecord{Diff: opts.DiffMode, Value: textEllipsis, ElideComma: true, Comment: comment})
break
}
list = append(list, textRecord{Diff: opts.DiffMode, Value: textLine(line), ElideComma: true})
}
list = append(list, textRecord{Diff: opts.DiffMode, Value: textLine(prefix + `"""`), ElideComma: true})
return &textWrap{Prefix: "(", Value: list, Suffix: ")"}
}
// Format the string as a single-line quoted string.
if len(s) > maxLen+len(textEllipsis) {
return textLine(prefix + formatString(s[:maxLen]) + string(textEllipsis))
}
return textLine(prefix + formatString(s))
}
// formatMapKey formats v as if it were a map key.
// The result is guaranteed to be a single line.
func formatMapKey(v reflect.Value) string {
func formatMapKey(v reflect.Value, disambiguate bool, ptrs *pointerReferences) string {
var opts formatOptions
opts.DiffMode = diffIdentical
opts.TypeMode = elideType
opts.ShallowPointers = true
s := opts.FormatValue(v, false, visitedPointers{}).String()
opts.PrintAddresses = disambiguate
opts.AvoidStringer = disambiguate
opts.QualifiedNames = disambiguate
s := opts.FormatValue(v, reflect.Map, ptrs).String()
return strings.TrimSpace(s)
}
@ -230,7 +369,7 @@ func formatString(s string) string {
rawInvalid := func(r rune) bool {
return r == '`' || r == '\n' || !(unicode.IsPrint(r) || r == '\t')
}
if strings.IndexFunc(s, rawInvalid) < 0 {
if utf8.ValidString(s) && strings.IndexFunc(s, rawInvalid) < 0 {
return "`" + s + "`"
}
return qs
@ -259,23 +398,3 @@ func formatHex(u uint64) string {
}
return fmt.Sprintf(f, u)
}
// formatPointer prints the address of the pointer.
func formatPointer(v reflect.Value) string {
p := v.Pointer()
if flags.Deterministic {
p = 0xdeadf00f // Only used for stable testing purposes
}
return fmt.Sprintf("⟪0x%x⟫", p)
}
type visitedPointers map[value.Pointer]struct{}
// Visit inserts pointer v into the visited map and reports whether it had
// already been visited before.
func (m visitedPointers) Visit(v reflect.Value) bool {
p := value.PointerOf(v)
_, visited := m[p]
m[p] = struct{}{}
return visited
}

View File

@ -8,6 +8,7 @@ import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
"unicode"
"unicode/utf8"
@ -23,11 +24,25 @@ func (opts formatOptions) CanFormatDiffSlice(v *valueNode) bool {
return false // Must be formatting in diff mode
case v.NumDiff == 0:
return false // No differences detected
case v.NumIgnored+v.NumCompared+v.NumTransformed > 0:
// TODO: Handle the case where someone uses bytes.Equal on a large slice.
return false // Some custom option was used to determined equality
case !v.ValueX.IsValid() || !v.ValueY.IsValid():
return false // Both values must be valid
case v.Type.Kind() == reflect.Slice && (v.ValueX.Len() == 0 || v.ValueY.Len() == 0):
return false // Both slice values have to be non-empty
case v.NumIgnored > 0:
return false // Some ignore option was used
case v.NumTransformed > 0:
return false // Some transform option was used
case v.NumCompared > 1:
return false // More than one comparison was used
case v.NumCompared == 1 && v.Type.Name() != "":
// The need for cmp to check applicability of options on every element
// in a slice is a significant performance detriment for large []byte.
// The workaround is to specify Comparer(bytes.Equal),
// which enables cmp to compare []byte more efficiently.
// If they differ, we still want to provide batched diffing.
// The logic disallows named types since they tend to have their own
// String method, with nicer formatting than what this provides.
return false
}
switch t := v.Type; t.Kind() {
@ -82,7 +97,7 @@ func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode {
}
if isText || isBinary {
var numLines, lastLineIdx, maxLineLen int
isBinary = false
isBinary = !utf8.ValidString(sx) || !utf8.ValidString(sy)
for i, r := range sx + sy {
if !(unicode.IsPrint(r) || unicode.IsSpace(r)) || r == utf8.RuneError {
isBinary = true
@ -97,7 +112,7 @@ func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode {
}
}
isText = !isBinary
isLinedText = isText && numLines >= 4 && maxLineLen <= 256
isLinedText = isText && numLines >= 4 && maxLineLen <= 1024
}
// Format the string into printable records.
@ -117,6 +132,83 @@ func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode {
},
)
delim = "\n"
// If possible, use a custom triple-quote (""") syntax for printing
// differences in a string literal. This format is more readable,
// but has edge-cases where differences are visually indistinguishable.
// This format is avoided under the following conditions:
// • A line starts with `"""`
// • A line starts with "..."
// • A line contains non-printable characters
// • Adjacent different lines differ only by whitespace
//
// For example:
// """
// ... // 3 identical lines
// foo
// bar
// - baz
// + BAZ
// """
isTripleQuoted := true
prevRemoveLines := map[string]bool{}
prevInsertLines := map[string]bool{}
var list2 textList
list2 = append(list2, textRecord{Value: textLine(`"""`), ElideComma: true})
for _, r := range list {
if !r.Value.Equal(textEllipsis) {
line, _ := strconv.Unquote(string(r.Value.(textLine)))
line = strings.TrimPrefix(strings.TrimSuffix(line, "\r"), "\r") // trim leading/trailing carriage returns for legacy Windows endline support
normLine := strings.Map(func(r rune) rune {
if unicode.IsSpace(r) {
return -1 // drop whitespace to avoid visually indistinguishable output
}
return r
}, line)
isPrintable := func(r rune) bool {
return unicode.IsPrint(r) || r == '\t' // specially treat tab as printable
}
isTripleQuoted = !strings.HasPrefix(line, `"""`) && !strings.HasPrefix(line, "...") && strings.TrimFunc(line, isPrintable) == ""
switch r.Diff {
case diffRemoved:
isTripleQuoted = isTripleQuoted && !prevInsertLines[normLine]
prevRemoveLines[normLine] = true
case diffInserted:
isTripleQuoted = isTripleQuoted && !prevRemoveLines[normLine]
prevInsertLines[normLine] = true
}
if !isTripleQuoted {
break
}
r.Value = textLine(line)
r.ElideComma = true
}
if !(r.Diff == diffRemoved || r.Diff == diffInserted) { // start a new non-adjacent difference group
prevRemoveLines = map[string]bool{}
prevInsertLines = map[string]bool{}
}
list2 = append(list2, r)
}
if r := list2[len(list2)-1]; r.Diff == diffIdentical && len(r.Value.(textLine)) == 0 {
list2 = list2[:len(list2)-1] // elide single empty line at the end
}
list2 = append(list2, textRecord{Value: textLine(`"""`), ElideComma: true})
if isTripleQuoted {
var out textNode = &textWrap{Prefix: "(", Value: list2, Suffix: ")"}
switch t.Kind() {
case reflect.String:
if t != reflect.TypeOf(string("")) {
out = opts.FormatType(t, out)
}
case reflect.Slice:
// Always emit type for slices since the triple-quote syntax
// looks like a string (not a slice).
opts = opts.WithTypeMode(emitType)
out = opts.FormatType(t, out)
}
return out
}
// If the text appears to be single-lined text,
// then perform differencing in approximately fixed-sized chunks.
// The output is printed as quoted strings.
@ -129,6 +221,7 @@ func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode {
},
)
delim = ""
// If the text appears to be binary data,
// then perform differencing in approximately fixed-sized chunks.
// The output is inspired by hexdump.
@ -145,6 +238,7 @@ func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode {
return textRecord{Diff: d, Value: textLine(s), Comment: comment}
},
)
// For all other slices of primitive types,
// then perform differencing in approximately fixed-sized chunks.
// The size of each chunk depends on the width of the element kind.
@ -187,7 +281,7 @@ func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode {
}
// Wrap the output with appropriate type information.
var out textNode = textWrap{"{", list, "}"}
var out textNode = &textWrap{Prefix: "{", Value: list, Suffix: "}"}
if !isText {
// The "{...}" byte-sequence literal is not valid Go syntax for strings.
// Emit the type for extra clarity (e.g. "string{...}").
@ -198,12 +292,12 @@ func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode {
}
switch t.Kind() {
case reflect.String:
out = textWrap{"strings.Join(", out, fmt.Sprintf(", %q)", delim)}
out = &textWrap{Prefix: "strings.Join(", Value: out, Suffix: fmt.Sprintf(", %q)", delim)}
if t != reflect.TypeOf(string("")) {
out = opts.FormatType(t, out)
}
case reflect.Slice:
out = textWrap{"bytes.Join(", out, fmt.Sprintf(", %q)", delim)}
out = &textWrap{Prefix: "bytes.Join(", Value: out, Suffix: fmt.Sprintf(", %q)", delim)}
if t != reflect.TypeOf([]byte(nil)) {
out = opts.FormatType(t, out)
}
@ -244,9 +338,22 @@ func (opts formatOptions) formatDiffSlice(
return n0 - v.Len()
}
var numDiffs int
maxLen := -1
if opts.LimitVerbosity {
maxLen = (1 << opts.verbosity()) << 2 // 4, 8, 16, 32, 64, etc...
opts.VerbosityLevel--
}
groups := coalesceAdjacentEdits(name, es)
groups = coalesceInterveningIdentical(groups, chunkSize/4)
maxGroup := diffStats{Name: name}
for i, ds := range groups {
if maxLen >= 0 && numDiffs >= maxLen {
maxGroup = maxGroup.Append(ds)
continue
}
// Print equal.
if ds.NumDiff() == 0 {
// Compute the number of leading and trailing equal bytes to print.
@ -275,12 +382,18 @@ func (opts formatOptions) formatDiffSlice(
}
// Print unequal.
len0 := len(list)
nx := appendChunks(vx.Slice(0, ds.NumIdentical+ds.NumRemoved+ds.NumModified), diffRemoved)
vx = vx.Slice(nx, vx.Len())
ny := appendChunks(vy.Slice(0, ds.NumIdentical+ds.NumInserted+ds.NumModified), diffInserted)
vy = vy.Slice(ny, vy.Len())
numDiffs += len(list) - len0
}
if maxGroup.IsZero() {
assert(vx.Len() == 0 && vy.Len() == 0)
} else {
list.AppendEllipsis(maxGroup)
}
assert(vx.Len() == 0 && vy.Len() == 0)
return list
}

View File

@ -10,12 +10,15 @@ import (
"math/rand"
"strings"
"time"
"unicode/utf8"
"github.com/google/go-cmp/cmp/internal/flags"
)
var randBool = rand.New(rand.NewSource(time.Now().Unix())).Intn(2) == 0
const maxColumnLength = 80
type indentMode int
func (n indentMode) appendIndent(b []byte, d diffMode) []byte {
@ -91,21 +94,22 @@ type textNode interface {
// textWrap is a wrapper that concatenates a prefix and/or a suffix
// to the underlying node.
type textWrap struct {
Prefix string // e.g., "bytes.Buffer{"
Value textNode // textWrap | textList | textLine
Suffix string // e.g., "}"
Prefix string // e.g., "bytes.Buffer{"
Value textNode // textWrap | textList | textLine
Suffix string // e.g., "}"
Metadata interface{} // arbitrary metadata; has no effect on formatting
}
func (s textWrap) Len() int {
func (s *textWrap) Len() int {
return len(s.Prefix) + s.Value.Len() + len(s.Suffix)
}
func (s1 textWrap) Equal(s2 textNode) bool {
if s2, ok := s2.(textWrap); ok {
func (s1 *textWrap) Equal(s2 textNode) bool {
if s2, ok := s2.(*textWrap); ok {
return s1.Prefix == s2.Prefix && s1.Value.Equal(s2.Value) && s1.Suffix == s2.Suffix
}
return false
}
func (s textWrap) String() string {
func (s *textWrap) String() string {
var d diffMode
var n indentMode
_, s2 := s.formatCompactTo(nil, d)
@ -114,7 +118,7 @@ func (s textWrap) String() string {
b = append(b, '\n') // Trailing newline
return string(b)
}
func (s textWrap) formatCompactTo(b []byte, d diffMode) ([]byte, textNode) {
func (s *textWrap) formatCompactTo(b []byte, d diffMode) ([]byte, textNode) {
n0 := len(b) // Original buffer length
b = append(b, s.Prefix...)
b, s.Value = s.Value.formatCompactTo(b, d)
@ -124,7 +128,7 @@ func (s textWrap) formatCompactTo(b []byte, d diffMode) ([]byte, textNode) {
}
return b, s
}
func (s textWrap) formatExpandedTo(b []byte, d diffMode, n indentMode) []byte {
func (s *textWrap) formatExpandedTo(b []byte, d diffMode, n indentMode) []byte {
b = append(b, s.Prefix...)
b = s.Value.formatExpandedTo(b, d, n)
b = append(b, s.Suffix...)
@ -136,22 +140,23 @@ func (s textWrap) formatExpandedTo(b []byte, d diffMode, n indentMode) []byte {
// of the textList.formatCompactTo method.
type textList []textRecord
type textRecord struct {
Diff diffMode // e.g., 0 or '-' or '+'
Key string // e.g., "MyField"
Value textNode // textWrap | textLine
Comment fmt.Stringer // e.g., "6 identical fields"
Diff diffMode // e.g., 0 or '-' or '+'
Key string // e.g., "MyField"
Value textNode // textWrap | textLine
ElideComma bool // avoid trailing comma
Comment fmt.Stringer // e.g., "6 identical fields"
}
// AppendEllipsis appends a new ellipsis node to the list if none already
// exists at the end. If cs is non-zero it coalesces the statistics with the
// previous diffStats.
func (s *textList) AppendEllipsis(ds diffStats) {
hasStats := ds != diffStats{}
hasStats := !ds.IsZero()
if len(*s) == 0 || !(*s)[len(*s)-1].Value.Equal(textEllipsis) {
if hasStats {
*s = append(*s, textRecord{Value: textEllipsis, Comment: ds})
*s = append(*s, textRecord{Value: textEllipsis, ElideComma: true, Comment: ds})
} else {
*s = append(*s, textRecord{Value: textEllipsis})
*s = append(*s, textRecord{Value: textEllipsis, ElideComma: true})
}
return
}
@ -191,7 +196,7 @@ func (s1 textList) Equal(s2 textNode) bool {
}
func (s textList) String() string {
return textWrap{"{", s, "}"}.String()
return (&textWrap{Prefix: "{", Value: s, Suffix: "}"}).String()
}
func (s textList) formatCompactTo(b []byte, d diffMode) ([]byte, textNode) {
@ -221,7 +226,7 @@ func (s textList) formatCompactTo(b []byte, d diffMode) ([]byte, textNode) {
}
// Force multi-lined output when printing a removed/inserted node that
// is sufficiently long.
if (d == diffInserted || d == diffRemoved) && len(b[n0:]) > 80 {
if (d == diffInserted || d == diffRemoved) && len(b[n0:]) > maxColumnLength {
multiLine = true
}
if !multiLine {
@ -236,16 +241,50 @@ func (s textList) formatExpandedTo(b []byte, d diffMode, n indentMode) []byte {
_, isLine := r.Value.(textLine)
return r.Key == "" || !isLine
},
func(r textRecord) int { return len(r.Key) },
func(r textRecord) int { return utf8.RuneCountInString(r.Key) },
)
alignValueLens := s.alignLens(
func(r textRecord) bool {
_, isLine := r.Value.(textLine)
return !isLine || r.Value.Equal(textEllipsis) || r.Comment == nil
},
func(r textRecord) int { return len(r.Value.(textLine)) },
func(r textRecord) int { return utf8.RuneCount(r.Value.(textLine)) },
)
// Format lists of simple lists in a batched form.
// If the list is sequence of only textLine values,
// then batch multiple values on a single line.
var isSimple bool
for _, r := range s {
_, isLine := r.Value.(textLine)
isSimple = r.Diff == 0 && r.Key == "" && isLine && r.Comment == nil
if !isSimple {
break
}
}
if isSimple {
n++
var batch []byte
emitBatch := func() {
if len(batch) > 0 {
b = n.appendIndent(append(b, '\n'), d)
b = append(b, bytes.TrimRight(batch, " ")...)
batch = batch[:0]
}
}
for _, r := range s {
line := r.Value.(textLine)
if len(batch)+len(line)+len(", ") > maxColumnLength {
emitBatch()
}
batch = append(batch, line...)
batch = append(batch, ", "...)
}
emitBatch()
n--
return n.appendIndent(append(b, '\n'), d)
}
// Format the list as a multi-lined output.
n++
for i, r := range s {
@ -256,7 +295,7 @@ func (s textList) formatExpandedTo(b []byte, d diffMode, n indentMode) []byte {
b = alignKeyLens[i].appendChar(b, ' ')
b = r.Value.formatExpandedTo(b, d|r.Diff, n)
if !r.Value.Equal(textEllipsis) {
if !r.ElideComma {
b = append(b, ',')
}
b = alignValueLens[i].appendChar(b, ' ')
@ -332,6 +371,11 @@ type diffStats struct {
NumModified int
}
func (s diffStats) IsZero() bool {
s.Name = ""
return s == diffStats{}
}
func (s diffStats) NumDiff() int {
return s.NumRemoved + s.NumInserted + s.NumModified
}

View File

@ -7,7 +7,6 @@ package fs
import (
"context"
"log"
"math/rand"
"sync"
"syscall"
"time"
@ -33,6 +32,12 @@ type fileEntry struct {
dirStream DirStream
hasOverflow bool
overflow fuse.DirEntry
// dirOffset is the current location in the directory (see `telldir(3)`).
// The value is equivalent to `d_off` (see `getdents(2)`) of the last
// directory entry sent to the kernel so far.
// If `dirOffset` and `fuse.DirEntryList.offset` disagree, then a
// directory seek has taken place.
dirOffset uint64
wg sync.WaitGroup
}
@ -55,10 +60,28 @@ type rawBridge struct {
// mu protects the following data. Locks for inodes must be
// taken before rawBridge.mu
mu sync.Mutex
nodes map[uint64]*Inode
mu sync.Mutex
// stableAttrs is used to detect already-known nodes and hard links by
// looking at:
// 1) file type ......... StableAttr.Mode
// 2) inode number ...... StableAttr.Ino
// 3) generation number . StableAttr.Gen
stableAttrs map[StableAttr]*Inode
automaticIno uint64
// The *Node ID* is an arbitrary uint64 identifier chosen by the FUSE library.
// It is used the identify *nodes* (files/directories/symlinks/...) in the
// communication between the FUSE library and the Linux kernel.
//
// The kernelNodeIds map translates between the NodeID and the corresponding
// go-fuse Inode object.
//
// A simple incrementing counter is used as the NodeID (see `nextNodeID`).
kernelNodeIds map[uint64]*Inode
// nextNodeID is the next free NodeID. Increment after copying the value.
nextNodeId uint64
files []*fileEntry
freeFiles []uint32
}
@ -77,55 +100,26 @@ func (b *rawBridge) newInodeUnlocked(ops InodeEmbedder, id StableAttr, persisten
return ops.embed()
}
if id.Ino == 0 {
for {
id.Ino = b.automaticIno
b.automaticIno++
_, ok := b.nodes[id.Ino]
if !ok {
break
}
}
}
// Only the file type bits matter
id.Mode = id.Mode & syscall.S_IFMT
if id.Mode == 0 {
id.Mode = fuse.S_IFREG
}
// the same node can be looked up through 2 paths in parallel, eg.
//
// root
// / \
// dir1 dir2
// \ /
// file
//
// dir1.Lookup("file") and dir2.Lookup("file") are executed
// simultaneously. The matching StableAttrs ensure that we return the
// same node.
var t time.Duration
t0 := time.Now()
for i := 1; true; i++ {
old := b.nodes[id.Ino]
if old == nil {
break
if id.Ino == 0 {
// Find free inode number.
for {
id.Ino = b.automaticIno
b.automaticIno++
_, ok := b.stableAttrs[id]
if !ok {
break
}
}
if old.stableAttr == id {
return old
}
b.mu.Unlock()
t = expSleep(t)
if i%5000 == 0 {
b.logf("blocked for %.0f seconds waiting for FORGET on i%d", time.Since(t0).Seconds(), id.Ino)
}
b.mu.Lock()
}
b.nodes[id.Ino] = ops.embed()
initInode(ops.embed(), ops, id, b, persistent)
initInode(ops.embed(), ops, id, b, persistent, b.nextNodeId)
b.nextNodeId++
return ops.embed()
}
@ -135,21 +129,6 @@ func (b *rawBridge) logf(format string, args ...interface{}) {
}
}
// expSleep sleeps for time `t` and returns an exponentially increasing value
// for the next sleep time, capped at 1 ms.
func expSleep(t time.Duration) time.Duration {
if t == 0 {
return time.Microsecond
}
time.Sleep(t)
// Next sleep is between t and 2*t
t += time.Duration(rand.Int63n(int64(t)))
if t >= time.Millisecond {
return time.Millisecond
}
return t
}
func (b *rawBridge) newInode(ctx context.Context, ops InodeEmbedder, id StableAttr, persistent bool) *Inode {
ch := b.newInodeUnlocked(ops, id, persistent)
if ch != ops.embed() {
@ -163,34 +142,81 @@ func (b *rawBridge) newInode(ctx context.Context, ops InodeEmbedder, id StableAt
}
// addNewChild inserts the child into the tree. Returns file handle if file != nil.
func (b *rawBridge) addNewChild(parent *Inode, name string, child *Inode, file FileHandle, fileFlags uint32, out *fuse.EntryOut) uint32 {
// Unless fileFlags has the syscall.O_EXCL bit set, child.stableAttr will be used
// to find an already-known node. If one is found, `child` is ignored and the
// already-known one is used. The node that was actually used is returned.
func (b *rawBridge) addNewChild(parent *Inode, name string, child *Inode, file FileHandle, fileFlags uint32, out *fuse.EntryOut) (selected *Inode, fh uint32) {
if name == "." || name == ".." {
log.Panicf("BUG: tried to add virtual entry %q to the actual tree", name)
}
lockNodes(parent, child)
parent.setEntry(name, child)
b.mu.Lock()
// Due to concurrent FORGETs, lookupCount may have dropped to zero.
// This means it MAY have been deleted from nodes[] already. Add it back.
if child.lookupCount == 0 {
b.nodes[child.stableAttr.Ino] = child
// the same node can be looked up through 2 paths in parallel, eg.
//
// root
// / \
// dir1 dir2
// \ /
// file
//
// dir1.Lookup("file") and dir2.Lookup("file") are executed
// simultaneously. The matching StableAttrs ensure that we return the
// same node.
orig := child
id := child.stableAttr
if id.Mode & ^(uint32(syscall.S_IFMT)) != 0 {
log.Panicf("%#v", id)
}
for {
lockNodes(parent, child)
b.mu.Lock()
if fileFlags&syscall.O_EXCL != 0 {
// must create a new node - don't look for existing nodes
break
}
old := b.stableAttrs[id]
if old == nil {
if child == orig {
// no pre-existing node under this inode number
break
} else {
// old inode disappeared while we were looping here. Go back to
// original child.
b.mu.Unlock()
unlockNodes(parent, child)
child = orig
continue
}
}
if old == child {
// we now have the right inode locked
break
}
// found a different existing node
b.mu.Unlock()
unlockNodes(parent, child)
child = old
}
child.lookupCount++
child.changeCounter++
var fh uint32
b.kernelNodeIds[child.nodeId] = child
// Any node that might be there is overwritten - it is obsolete now
b.stableAttrs[id] = child
if file != nil {
fh = b.registerFile(child, file, fileFlags)
}
out.NodeId = child.stableAttr.Ino
parent.setEntry(name, child)
out.NodeId = child.nodeId
out.Generation = child.stableAttr.Gen
out.Attr.Ino = child.stableAttr.Ino
b.mu.Unlock()
unlockNodes(parent, child)
return fh
return child, fh
}
func (b *rawBridge) setEntryOutTimeout(out *fuse.EntryOut) {
@ -231,6 +257,8 @@ func NewNodeFS(root InodeEmbedder, opts *Options) fuse.RawFileSystem {
bridge := &rawBridge{
automaticIno: opts.FirstAutomaticIno,
server: opts.ServerCallbacks,
nextNodeId: 2, // the root node has nodeid 1
stableAttrs: make(map[StableAttr]*Inode),
}
if bridge.automaticIno == 1 {
bridge.automaticIno++
@ -250,15 +278,16 @@ func NewNodeFS(root InodeEmbedder, opts *Options) fuse.RawFileSystem {
initInode(root.embed(), root,
StableAttr{
Ino: 1,
Ino: root.embed().StableAttr().Ino,
Mode: fuse.S_IFDIR,
},
bridge,
false,
1,
)
bridge.root = root.embed()
bridge.root.lookupCount = 1
bridge.nodes = map[uint64]*Inode{
bridge.kernelNodeIds = map[uint64]*Inode{
1: bridge.root,
}
@ -281,7 +310,7 @@ func (b *rawBridge) String() string {
func (b *rawBridge) inode(id uint64, fh uint64) (*Inode, *fileEntry) {
b.mu.Lock()
defer b.mu.Unlock()
n, f := b.nodes[id], b.files[fh]
n, f := b.kernelNodeIds[id], b.files[fh]
if n == nil {
log.Panicf("unknown node %d", id)
}
@ -300,8 +329,8 @@ func (b *rawBridge) Lookup(cancel <-chan struct{}, header *fuse.InHeader, name s
return errnoToStatus(errno)
}
child, _ = b.addNewChild(parent, name, child, nil, 0, out)
child.setEntryOut(out)
b.addNewChild(parent, name, child, nil, 0, out)
b.setEntryOutTimeout(out)
return fuse.OK
}
@ -376,8 +405,8 @@ func (b *rawBridge) Mkdir(cancel <-chan struct{}, input *fuse.MkdirIn, name stri
log.Panicf("Mkdir: mode must be S_IFDIR (%o), got %o", fuse.S_IFDIR, out.Attr.Mode)
}
child, _ = b.addNewChild(parent, name, child, nil, syscall.O_EXCL, out)
child.setEntryOut(out)
b.addNewChild(parent, name, child, nil, 0, out)
b.setEntryOutTimeout(out)
return fuse.OK
}
@ -395,8 +424,8 @@ func (b *rawBridge) Mknod(cancel <-chan struct{}, input *fuse.MknodIn, name stri
return errnoToStatus(errno)
}
child, _ = b.addNewChild(parent, name, child, nil, syscall.O_EXCL, out)
child.setEntryOut(out)
b.addNewChild(parent, name, child, nil, 0, out)
b.setEntryOutTimeout(out)
return fuse.OK
}
@ -422,8 +451,9 @@ func (b *rawBridge) Create(cancel <-chan struct{}, input *fuse.CreateIn, name st
return errnoToStatus(errno)
}
out.Fh = uint64(b.addNewChild(parent, name, child, f, input.Flags|syscall.O_CREAT, &out.EntryOut))
child, fh := b.addNewChild(parent, name, child, f, input.Flags|syscall.O_CREAT|syscall.O_EXCL, &out.EntryOut)
out.Fh = uint64(fh)
out.OpenFlags = flags
child.setEntryOut(&out.EntryOut)
@ -534,8 +564,8 @@ func (b *rawBridge) Link(cancel <-chan struct{}, input *fuse.LinkIn, name string
return errnoToStatus(errno)
}
child, _ = b.addNewChild(parent, name, child, nil, 0, out)
child.setEntryOut(out)
b.addNewChild(parent, name, child, nil, 0, out)
b.setEntryOutTimeout(out)
return fuse.OK
}
@ -551,7 +581,7 @@ func (b *rawBridge) Symlink(cancel <-chan struct{}, header *fuse.InHeader, targe
return errnoToStatus(status)
}
b.addNewChild(parent, name, child, nil, 0, out)
child, _ = b.addNewChild(parent, name, child, nil, syscall.O_EXCL, out)
child.setEntryOut(out)
b.setEntryOutTimeout(out)
return fuse.OK
@ -763,7 +793,7 @@ func (b *rawBridge) releaseFileEntry(nid uint64, fh uint64) (*Inode, *fileEntry)
b.mu.Lock()
defer b.mu.Unlock()
n := b.nodes[nid]
n := b.kernelNodeIds[nid]
var entry *fileEntry
if fh > 0 {
last := len(n.openFiles) - 1
@ -842,23 +872,47 @@ func (b *rawBridge) OpenDir(cancel <-chan struct{}, input *fuse.OpenIn, out *fus
return fuse.OK
}
// setStream sets the directory part of f. Must hold f.mu
func (b *rawBridge) setStream(cancel <-chan struct{}, input *fuse.ReadIn, inode *Inode, f *fileEntry) syscall.Errno {
if f.dirStream == nil || input.Offset == 0 {
// setStream makes sure `f.dirStream` and associated state variables are set and
// seeks to offset requested in `input`. Caller must hold `f.mu`.
// The `eof` return value shows if `f.dirStream` ended before the requested
// offset was reached.
func (b *rawBridge) setStream(cancel <-chan struct{}, input *fuse.ReadIn, inode *Inode, f *fileEntry) (errno syscall.Errno, eof bool) {
// Get a new directory stream in the following cases:
// 1) f.dirStream == nil ............ First READDIR[PLUS] on this file handle.
// 2) input.Offset == 0 ............. Start reading the directory again from
// the beginning (user called rewinddir(3) or lseek(2)).
// 3) input.Offset < f.nextOffset ... Seek back (user called seekdir(3) or lseek(2)).
if f.dirStream == nil || input.Offset == 0 || input.Offset < f.dirOffset {
if f.dirStream != nil {
f.dirStream.Close()
f.dirStream = nil
}
str, errno := b.getStream(&fuse.Context{Caller: input.Caller, Cancel: cancel}, inode)
if errno != 0 {
return errno
return errno, false
}
f.dirOffset = 0
f.hasOverflow = false
f.dirStream = str
}
return 0
// Seek forward?
for f.dirOffset < input.Offset {
f.hasOverflow = false
if !f.dirStream.HasNext() {
// Seek past end of directory. This is not an error, but the
// user will get an empty directory listing.
return 0, true
}
_, errno := f.dirStream.Next()
if errno != 0 {
return errno, true
}
f.dirOffset++
}
return 0, false
}
func (b *rawBridge) getStream(ctx context.Context, inode *Inode) (DirStream, syscall.Errno) {
@ -880,14 +934,19 @@ func (b *rawBridge) ReadDir(cancel <-chan struct{}, input *fuse.ReadIn, out *fus
f.mu.Lock()
defer f.mu.Unlock()
if errno := b.setStream(cancel, input, n, f); errno != 0 {
errno, eof := b.setStream(cancel, input, n, f)
if errno != 0 {
return errnoToStatus(errno)
} else if eof {
return fuse.OK
}
if f.hasOverflow {
// always succeeds.
out.AddDirEntry(f.overflow)
f.hasOverflow = false
f.dirOffset++
}
for f.dirStream.HasNext() {
@ -901,6 +960,7 @@ func (b *rawBridge) ReadDir(cancel <-chan struct{}, input *fuse.ReadIn, out *fus
f.hasOverflow = true
return errnoToStatus(errno)
}
f.dirOffset++
}
return fuse.OK
@ -911,8 +971,12 @@ func (b *rawBridge) ReadDirPlus(cancel <-chan struct{}, input *fuse.ReadIn, out
f.mu.Lock()
defer f.mu.Unlock()
if errno := b.setStream(cancel, input, n, f); errno != 0 {
errno, eof := b.setStream(cancel, input, n, f)
if errno != 0 {
return errnoToStatus(errno)
} else if eof {
return fuse.OK
}
ctx := &fuse.Context{Caller: input.Caller, Cancel: cancel}
@ -937,6 +1001,7 @@ func (b *rawBridge) ReadDirPlus(cancel <-chan struct{}, input *fuse.ReadIn, out
f.hasOverflow = true
return fuse.OK
}
f.dirOffset++
// Virtual entries "." and ".." should be part of the
// directory listing, but not part of the filesystem tree.
@ -953,7 +1018,7 @@ func (b *rawBridge) ReadDirPlus(cancel <-chan struct{}, input *fuse.ReadIn, out
entryOut.SetEntryTimeout(*b.options.NegativeTimeout)
}
} else {
b.addNewChild(n, e.Name, child, nil, 0, entryOut)
child, _ = b.addNewChild(n, e.Name, child, nil, 0, entryOut)
child.setEntryOut(entryOut)
b.setEntryOutTimeout(entryOut)
if e.Mode&syscall.S_IFMT != child.stableAttr.Mode&syscall.S_IFMT {

View File

@ -55,12 +55,26 @@ func (ds *loopbackDirStream) HasNext() bool {
return len(ds.todo) > 0
}
// Like syscall.Dirent, but without the [256]byte name.
type dirent struct {
Ino uint64
Off int64
Reclen uint16
Type uint8
Name [1]uint8 // align to 4 bytes for 32 bits.
}
func (ds *loopbackDirStream) Next() (fuse.DirEntry, syscall.Errno) {
ds.mu.Lock()
defer ds.mu.Unlock()
de := (*syscall.Dirent)(unsafe.Pointer(&ds.todo[0]))
nameBytes := ds.todo[unsafe.Offsetof(syscall.Dirent{}.Name):de.Reclen]
// We can't use syscall.Dirent here, because it declares a
// [256]byte name, which may run beyond the end of ds.todo.
// when that happens in the race detector, it causes a panic
// "converted pointer straddles multiple allocations"
de := (*dirent)(unsafe.Pointer(&ds.todo[0]))
nameBytes := ds.todo[unsafe.Offsetof(dirent{}.Name):de.Reclen]
ds.todo = ds.todo[de.Reclen:]
// After the loop, l contains the index of the first '\0'.

View File

@ -63,6 +63,11 @@ type Inode struct {
ops InodeEmbedder
bridge *rawBridge
// The *Node ID* is an arbitrary uint64 identifier chosen by the FUSE library.
// It is used the identify *nodes* (files/directories/symlinks/...) in the
// communication between the FUSE library and the Linux kernel.
nodeId uint64
// Following data is mutable.
// file handles.
@ -115,11 +120,12 @@ func (n *Inode) EmbeddedInode() *Inode {
return n
}
func initInode(n *Inode, ops InodeEmbedder, attr StableAttr, bridge *rawBridge, persistent bool) {
func initInode(n *Inode, ops InodeEmbedder, attr StableAttr, bridge *rawBridge, persistent bool, nodeId uint64) {
n.ops = ops
n.stableAttr = attr
n.bridge = bridge
n.persistent = persistent
n.nodeId = nodeId
n.parents = make(map[parentData]struct{})
if attr.Mode == fuse.S_IFDIR {
n.children = make(map[string]*Inode)
@ -128,7 +134,7 @@ func initInode(n *Inode, ops InodeEmbedder, attr StableAttr, bridge *rawBridge,
// Set node ID and mode in EntryOut
func (n *Inode) setEntryOut(out *fuse.EntryOut) {
out.NodeId = n.stableAttr.Ino
out.NodeId = n.nodeId
out.Ino = n.stableAttr.Ino
out.Mode = (out.Attr.Mode & 07777) | n.stableAttr.Mode
}
@ -303,8 +309,8 @@ func (n *Inode) Path(root *Inode) string {
if root != nil && root != p {
deletedPlaceholder := fmt.Sprintf(".go-fuse.%d/deleted", rand.Uint64())
n.bridge.logf("warning: Inode.Path: inode i%d is orphaned, replacing segment with %q",
n.stableAttr.Ino, deletedPlaceholder)
n.bridge.logf("warning: Inode.Path: n%d is orphaned, replacing segment with %q",
n.nodeId, deletedPlaceholder)
// NOSUBMIT - should replace rather than append?
segments = append(segments, deletedPlaceholder)
}
@ -329,7 +335,16 @@ func (n *Inode) Path(root *Inode) string {
// but it could be also valid if only iparent is locked and ichild was just
// created and only one goroutine keeps referencing it.
func (iparent *Inode) setEntry(name string, ichild *Inode) {
ichild.parents[parentData{name, iparent}] = struct{}{}
newParent := parentData{name, iparent}
if ichild.stableAttr.Mode == syscall.S_IFDIR {
// Directories cannot have more than one parent. Clear the map.
// This special-case is neccessary because ichild may still have a
// parent that was forgotten (i.e. removed from bridge.inoMap).
for i := range ichild.parents {
delete(ichild.parents, i)
}
}
ichild.parents[newParent] = struct{}{}
iparent.children[name] = ichild
ichild.changeCounter++
iparent.changeCounter++
@ -360,8 +375,8 @@ func (n *Inode) ForgetPersistent() {
// NewInode returns an inode for the given InodeEmbedder. The mode
// should be standard mode argument (eg. S_IFDIR). The inode number in
// id.Ino argument is used to implement hard-links. If it is given,
// and another node with the same ID is known, that will node will be
// returned, and the passed-in `node` is ignored.
// and another node with the same ID is known, the new inode may be
// ignored, and the old one used instead.
func (n *Inode) NewInode(ctx context.Context, node InodeEmbedder, id StableAttr) *Inode {
return n.newInode(ctx, node, id, false)
}
@ -380,8 +395,9 @@ func (n *Inode) removeRef(nlookup uint64, dropPersistence bool) (forgotten bool,
n.mu.Lock()
if nlookup > 0 && dropPersistence {
log.Panic("only one allowed")
} else if nlookup > n.lookupCount {
log.Panicf("n%d lookupCount underflow: lookupCount=%d, decrement=%d", n.nodeId, n.lookupCount, nlookup)
} else if nlookup > 0 {
n.lookupCount -= nlookup
n.changeCounter++
} else if dropPersistence && n.persistent {
@ -389,13 +405,22 @@ func (n *Inode) removeRef(nlookup uint64, dropPersistence bool) (forgotten bool,
n.changeCounter++
}
n.bridge.mu.Lock()
if n.lookupCount == 0 {
forgotten = true
// Dropping the node from inoMap guarantees that no new references to this node are
// handed out to the kernel, hence we can also safely delete it from nodeidMap.
delete(n.bridge.stableAttrs, n.stableAttr)
delete(n.bridge.kernelNodeIds, n.nodeId)
}
n.bridge.mu.Unlock()
retry:
for {
lockme = append(lockme[:0], n)
parents = parents[:0]
nChange := n.changeCounter
live = n.lookupCount > 0 || len(n.children) > 0 || n.persistent
forgotten = n.lookupCount == 0
for p := range n.parents {
parents = append(parents, p)
lockme = append(lockme, p.parent)
@ -415,6 +440,10 @@ retry:
}
for _, p := range parents {
if p.parent.children[p.name] != n {
// another node has replaced us already
continue
}
delete(p.parent.children, p.name)
p.parent.changeCounter++
}
@ -422,13 +451,9 @@ retry:
n.changeCounter++
if n.lookupCount != 0 {
panic("lookupCount changed")
log.Panicf("n%d %p lookupCount changed: %d", n.nodeId, n, n.lookupCount)
}
n.bridge.mu.Lock()
delete(n.bridge.nodes, n.stableAttr.Ino)
n.bridge.mu.Unlock()
unlockNodes(lockme...)
break
}
@ -712,7 +737,7 @@ retry:
// tuple should be invalidated. On next access, a LOOKUP operation
// will be started.
func (n *Inode) NotifyEntry(name string) syscall.Errno {
status := n.bridge.server.EntryNotify(n.stableAttr.Ino, name)
status := n.bridge.server.EntryNotify(n.nodeId, name)
return syscall.Errno(status)
}
@ -721,7 +746,7 @@ func (n *Inode) NotifyEntry(name string) syscall.Errno {
// to NotifyEntry, but also sends an event to inotify watchers.
func (n *Inode) NotifyDelete(name string, child *Inode) syscall.Errno {
// XXX arg ordering?
return syscall.Errno(n.bridge.server.DeleteNotify(n.stableAttr.Ino, child.stableAttr.Ino, name))
return syscall.Errno(n.bridge.server.DeleteNotify(n.nodeId, child.nodeId, name))
}
@ -729,16 +754,16 @@ func (n *Inode) NotifyDelete(name string, child *Inode) syscall.Errno {
// inode should be flushed from buffers.
func (n *Inode) NotifyContent(off, sz int64) syscall.Errno {
// XXX how does this work for directories?
return syscall.Errno(n.bridge.server.InodeNotify(n.stableAttr.Ino, off, sz))
return syscall.Errno(n.bridge.server.InodeNotify(n.nodeId, off, sz))
}
// WriteCache stores data in the kernel cache.
func (n *Inode) WriteCache(offset int64, data []byte) syscall.Errno {
return syscall.Errno(n.bridge.server.InodeNotifyStoreCache(n.stableAttr.Ino, offset, data))
return syscall.Errno(n.bridge.server.InodeNotifyStoreCache(n.nodeId, offset, data))
}
// ReadCache reads data from the kernel cache.
func (n *Inode) ReadCache(offset int64, dest []byte) (count int, errno syscall.Errno) {
c, s := n.bridge.server.InodeRetrieveCache(n.stableAttr.Ino, offset, dest)
c, s := n.bridge.server.InodeRetrieveCache(n.nodeId, offset, dest)
return c, syscall.Errno(s)
}

View File

@ -36,10 +36,17 @@ func (d DirEntry) String() string {
// DirEntryList holds the return value for READDIR and READDIRPLUS
// opcodes.
type DirEntryList struct {
buf []byte
size int // capacity of the underlying buffer
offset uint64 // entry count (NOT a byte offset)
lastDirent *_Dirent // pointer to the last serialized _Dirent. Used by FixMode().
buf []byte
// capacity of the underlying buffer
size int
// offset is the requested location in the directory. go-fuse
// currently counts in number of directory entries, but this is an
// implementation detail and may change in the future.
// If `offset` and `fs.fileEntry.dirOffset` disagree, then a
// directory seek has taken place.
offset uint64
// pointer to the last serialized _Dirent. Used by FixMode().
lastDirent *_Dirent
}
// NewDirEntryList creates a DirEntryList with the given data buffer

View File

@ -314,7 +314,7 @@ func doBatchForget(server *Server, req *request) {
forgets := *(*[]_ForgetOne)(unsafe.Pointer(h))
for i, f := range forgets {
if server.opts.Debug {
log.Printf("doBatchForget: rx %d %d/%d: FORGET i%d {Nlookup=%d}",
log.Printf("doBatchForget: rx %d %d/%d: FORGET n%d {Nlookup=%d}",
req.inHeader.Unique, i+1, len(forgets), f.NodeId, f.Nlookup)
}
if f.NodeId == pollHackInode {

View File

@ -15,29 +15,35 @@ func doPollHackLookup(ms *Server, req *request) {
Nlink: 1,
}
switch req.inHeader.Opcode {
case _OP_CREATE:
out := (*CreateOut)(req.outData())
out.EntryOut = EntryOut{
case _OP_LOOKUP:
out := (*EntryOut)(req.outData())
*out = EntryOut{
NodeId: pollHackInode,
Attr: attr,
}
out.OpenOut = OpenOut{
req.status = OK
case _OP_OPEN:
out := (*OpenOut)(req.outData())
*out = OpenOut{
Fh: pollHackInode,
}
req.status = OK
case _OP_LOOKUP:
out := (*EntryOut)(req.outData())
*out = EntryOut{}
req.status = ENOENT
case _OP_GETATTR:
out := (*AttrOut)(req.outData())
out.Attr = attr
req.status = OK
case _OP_POLL:
req.status = ENOSYS
case _OP_ACCESS, _OP_FLUSH, _OP_RELEASE:
// Avoid upsetting the OSX mount process.
req.status = OK
default:
// We want to avoid switching off features through our
// poll hack, so don't use ENOSYS
// poll hack, so don't use ENOSYS. It would be nice if
// we could transmit no error code at all, but for
// some opcodes, we'd have to invent credible data to
// return as well.
req.status = ERANGE
}
}

View File

@ -8,7 +8,7 @@ import (
)
func pollHack(mountPoint string) error {
fd, err := syscall.Creat(filepath.Join(mountPoint, pollHackName), syscall.O_CREAT)
fd, err := syscall.Open(filepath.Join(mountPoint, pollHackName), syscall.O_RDONLY, 0)
if err != nil {
return err
}

View File

@ -214,13 +214,13 @@ func ft(tsec uint64, tnsec uint32) float64 {
// Returned by LOOKUP
func (o *EntryOut) string() string {
return fmt.Sprintf("{i%d g%d tE=%gs tA=%gs %v}",
return fmt.Sprintf("{n%d g%d tE=%gs tA=%gs %v}",
o.NodeId, o.Generation, ft(o.EntryValid, o.EntryValidNsec),
ft(o.AttrValid, o.AttrValidNsec), &o.Attr)
}
func (o *CreateOut) string() string {
return fmt.Sprintf("{i%d g%d %v %v}", o.NodeId, o.Generation, &o.EntryOut, &o.OpenOut)
return fmt.Sprintf("{n%d g%d %v %v}", o.NodeId, o.Generation, &o.EntryOut, &o.OpenOut)
}
func (o *StatfsOut) string() string {
@ -243,11 +243,11 @@ func (o *NotifyInvalDeleteOut) string() string {
}
func (o *NotifyStoreOut) string() string {
return fmt.Sprintf("{i%d [%d +%d)}", o.Nodeid, o.Offset, o.Size)
return fmt.Sprintf("{n%d [%d +%d)}", o.Nodeid, o.Offset, o.Size)
}
func (o *NotifyRetrieveOut) string() string {
return fmt.Sprintf("{> %d: i%d [%d +%d)}", o.NotifyUnique, o.Nodeid, o.Offset, o.Size)
return fmt.Sprintf("{> %d: n%d [%d +%d)}", o.NotifyUnique, o.Nodeid, o.Offset, o.Size)
}
func (i *NotifyRetrieveIn) string() string {
@ -260,7 +260,7 @@ func (f *FallocateIn) string() string {
}
func (f *LinkIn) string() string {
return fmt.Sprintf("{Oldnodeid: %d}", f.Oldnodeid)
return fmt.Sprintf("{Oldnodeid: n%d}", f.Oldnodeid)
}
func (o *WriteOut) string() string {
@ -268,7 +268,7 @@ func (o *WriteOut) string() string {
}
func (i *CopyFileRangeIn) string() string {
return fmt.Sprintf("{Fh %d [%d +%d) => i%d Fh %d [%d, %d)}",
return fmt.Sprintf("{Fh %d [%d +%d) => n%d Fh %d [%d, %d)}",
i.FhIn, i.OffIn, i.Len, i.NodeIdOut, i.FhOut, i.OffOut, i.Len)
}

View File

@ -88,11 +88,22 @@ func (r *request) InputDebug() string {
names = fmt.Sprintf("%q", r.filenames)
}
if len(r.arg) > 0 {
names += fmt.Sprintf(" %db", len(r.arg))
if l := len(r.arg); l > 0 {
data := ""
if len(r.filenames) == 0 {
dots := ""
if l > 8 {
l = 8
dots = "..."
}
data = fmt.Sprintf("%q%s", r.arg[:l], dots)
}
names += fmt.Sprintf("%s %db", data, len(r.arg))
}
return fmt.Sprintf("rx %d: %s i%d %s%s",
return fmt.Sprintf("rx %d: %s n%d %s%s",
r.inHeader.Unique, operationName(r.inHeader.Opcode), r.inHeader.NodeId,
val, names)
}

View File

@ -1,354 +0,0 @@
Mozilla Public License, version 2.0
1. Definitions
1.1. “Contributor”
means each individual or legal entity that creates, contributes to the
creation of, or owns Covered Software.
1.2. “Contributor Version”
means the combination of the Contributions of others (if any) used by a
Contributor and that particular Contributors Contribution.
1.3. “Contribution”
means Covered Software of a particular Contributor.
1.4. “Covered Software”
means Source Code Form to which the initial Contributor has attached the
notice in Exhibit A, the Executable Form of such Source Code Form, and
Modifications of such Source Code Form, in each case including portions
thereof.
1.5. “Incompatible With Secondary Licenses”
means
a. that the initial Contributor has attached the notice described in
Exhibit B to the Covered Software; or
b. that the Covered Software was made available under the terms of version
1.1 or earlier of the License, but not also under the terms of a
Secondary License.
1.6. “Executable Form”
means any form of the work other than Source Code Form.
1.7. “Larger Work”
means a work that combines Covered Software with other material, in a separate
file or files, that is not Covered Software.
1.8. “License”
means this document.
1.9. “Licensable”
means having the right to grant, to the maximum extent possible, whether at the
time of the initial grant or subsequently, any and all of the rights conveyed by
this License.
1.10. “Modifications”
means any of the following:
a. any file in Source Code Form that results from an addition to, deletion
from, or modification of the contents of Covered Software; or
b. any new file in Source Code Form that contains any Covered Software.
1.11. “Patent Claims” of a Contributor
means any patent claim(s), including without limitation, method, process,
and apparatus claims, in any patent Licensable by such Contributor that
would be infringed, but for the grant of the License, by the making,
using, selling, offering for sale, having made, import, or transfer of
either its Contributions or its Contributor Version.
1.12. “Secondary License”
means either the GNU General Public License, Version 2.0, the GNU Lesser
General Public License, Version 2.1, the GNU Affero General Public
License, Version 3.0, or any later versions of those licenses.
1.13. “Source Code Form”
means the form of the work preferred for making modifications.
1.14. “You” (or “Your”)
means an individual or a legal entity exercising rights under this
License. For legal entities, “You” includes any entity that controls, is
controlled by, or is under common control with You. For purposes of this
definition, “control” means (a) the power, direct or indirect, to cause
the direction or management of such entity, whether by contract or
otherwise, or (b) ownership of more than fifty percent (50%) of the
outstanding shares or beneficial ownership of such entity.
2. License Grants and Conditions
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
a. under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or as
part of a Larger Work; and
b. under Patent Claims of such Contributor to make, use, sell, offer for
sale, have made, import, and otherwise transfer either its Contributions
or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution become
effective for each Contribution on the date the Contributor first distributes
such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under this
License. No additional rights or licenses will be implied from the distribution
or licensing of Covered Software under this License. Notwithstanding Section
2.1(b) above, no patent license is granted by a Contributor:
a. for any code that a Contributor has removed from Covered Software; or
b. for infringements caused by: (i) Your and any other third partys
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
c. under Patent Claims infringed by Covered Software in the absence of its
Contributions.
This License does not grant any rights in the trademarks, service marks, or
logos of any Contributor (except as may be necessary to comply with the
notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this License
(see Section 10.2) or under the terms of a Secondary License (if permitted
under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its Contributions
are its original creation(s) or it has sufficient rights to grant the
rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under applicable
copyright doctrines of fair use, fair dealing, or other equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
Section 2.1.
3. Responsibilities
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under the
terms of this License. You must inform recipients that the Source Code Form
of the Covered Software is governed by the terms of this License, and how
they can obtain a copy of this License. You may not attempt to alter or
restrict the recipients rights in the Source Code Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
a. such Covered Software must also be made available in Source Code Form,
as described in Section 3.1, and You must inform recipients of the
Executable Form how they can obtain a copy of such Source Code Form by
reasonable means in a timely manner, at a charge no more than the cost
of distribution to the recipient; and
b. You may distribute such Executable Form under the terms of this License,
or sublicense it under different terms, provided that the license for
the Executable Form does not attempt to limit or alter the recipients
rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for the
Covered Software. If the Larger Work is a combination of Covered Software
with a work governed by one or more Secondary Licenses, and the Covered
Software is not Incompatible With Secondary Licenses, this License permits
You to additionally distribute such Covered Software under the terms of
such Secondary License(s), so that the recipient of the Larger Work may, at
their option, further distribute the Covered Software under the terms of
either this License or such Secondary License(s).
3.4. Notices
You may not remove or alter the substance of any license notices (including
copyright notices, patent notices, disclaimers of warranty, or limitations
of liability) contained within the Source Code Form of the Covered
Software, except that You may alter any license notices to the extent
required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on behalf
of any Contributor. You must make it absolutely clear that any such
warranty, support, indemnity, or liability obligation is offered by You
alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
If it is impossible for You to comply with any of the terms of this License
with respect to some or all of the Covered Software due to statute, judicial
order, or regulation then You must: (a) comply with the terms of this License
to the maximum extent possible; and (b) describe the limitations and the code
they affect. Such description must be placed in a text file included with all
distributions of the Covered Software under this License. Except to the
extent prohibited by statute or regulation, such description must be
sufficiently detailed for a recipient of ordinary skill to be able to
understand it.
5. Termination
5.1. The rights granted under this License will terminate automatically if You
fail to comply with any of its terms. However, if You become compliant,
then the rights granted under this License from a particular Contributor
are reinstated (a) provisionally, unless and until such Contributor
explicitly and finally terminates Your grants, and (b) on an ongoing basis,
if such Contributor fails to notify You of the non-compliance by some
reasonable means prior to 60 days after You have come back into compliance.
Moreover, Your grants from a particular Contributor are reinstated on an
ongoing basis if such Contributor notifies You of the non-compliance by
some reasonable means, this is the first time You have received notice of
non-compliance with this License from such Contributor, and You become
compliant prior to 30 days after Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions, counter-claims,
and cross-claims) alleging that a Contributor Version directly or
indirectly infringes any patent, then the rights granted to You by any and
all Contributors for the Covered Software under Section 2.1 of this License
shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
license agreements (excluding distributors and resellers) which have been
validly granted by You or Your distributors under this License prior to
termination shall survive termination.
6. Disclaimer of Warranty
Covered Software is provided under this License on an “as is” basis, without
warranty of any kind, either expressed, implied, or statutory, including,
without limitation, warranties that the Covered Software is free of defects,
merchantable, fit for a particular purpose or non-infringing. The entire
risk as to the quality and performance of the Covered Software is with You.
Should any Covered Software prove defective in any respect, You (not any
Contributor) assume the cost of any necessary servicing, repair, or
correction. This disclaimer of warranty constitutes an essential part of this
License. No use of any Covered Software is authorized under this License
except under this disclaimer.
7. Limitation of Liability
Under no circumstances and under no legal theory, whether tort (including
negligence), contract, or otherwise, shall any Contributor, or anyone who
distributes Covered Software as permitted above, be liable to You for any
direct, indirect, special, incidental, or consequential damages of any
character including, without limitation, damages for lost profits, loss of
goodwill, work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses, even if such party shall have been
informed of the possibility of such damages. This limitation of liability
shall not apply to liability for death or personal injury resulting from such
partys negligence to the extent applicable law prohibits such limitation.
Some jurisdictions do not allow the exclusion or limitation of incidental or
consequential damages, so this exclusion and limitation may not apply to You.
8. Litigation
Any litigation relating to this License may be brought only in the courts of
a jurisdiction where the defendant maintains its principal place of business
and such litigation shall be governed by laws of that jurisdiction, without
reference to its conflict-of-law provisions. Nothing in this Section shall
prevent a partys ability to bring cross-claims or counter-claims.
9. Miscellaneous
This License represents the complete agreement concerning the subject matter
hereof. If any provision of this License is held to be unenforceable, such
provision shall be reformed only to the extent necessary to make it
enforceable. Any law or regulation which provides that the language of a
contract shall be construed against the drafter shall not be used to construe
this License against a Contributor.
10. Versions of the License
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version of
the License under which You originally received the Covered Software, or
under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a modified
version of this License if you rename the license and remove any
references to the name of the license steward (except to note that such
modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular file, then
You may include the notice in a location (such as a LICENSE file in a relevant
directory) where a recipient would be likely to look for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - “Incompatible With Secondary Licenses” Notice
This Source Code Form is “Incompatible
With Secondary Licenses”, as defined by
the Mozilla Public License, v. 2.0.

View File

@ -1,89 +0,0 @@
# errwrap
`errwrap` is a package for Go that formalizes the pattern of wrapping errors
and checking if an error contains another error.
There is a common pattern in Go of taking a returned `error` value and
then wrapping it (such as with `fmt.Errorf`) before returning it. The problem
with this pattern is that you completely lose the original `error` structure.
Arguably the _correct_ approach is that you should make a custom structure
implementing the `error` interface, and have the original error as a field
on that structure, such [as this example](http://golang.org/pkg/os/#PathError).
This is a good approach, but you have to know the entire chain of possible
rewrapping that happens, when you might just care about one.
`errwrap` formalizes this pattern (it doesn't matter what approach you use
above) by giving a single interface for wrapping errors, checking if a specific
error is wrapped, and extracting that error.
## Installation and Docs
Install using `go get github.com/hashicorp/errwrap`.
Full documentation is available at
http://godoc.org/github.com/hashicorp/errwrap
## Usage
#### Basic Usage
Below is a very basic example of its usage:
```go
// A function that always returns an error, but wraps it, like a real
// function might.
func tryOpen() error {
_, err := os.Open("/i/dont/exist")
if err != nil {
return errwrap.Wrapf("Doesn't exist: {{err}}", err)
}
return nil
}
func main() {
err := tryOpen()
// We can use the Contains helpers to check if an error contains
// another error. It is safe to do this with a nil error, or with
// an error that doesn't even use the errwrap package.
if errwrap.Contains(err, "does not exist") {
// Do something
}
if errwrap.ContainsType(err, new(os.PathError)) {
// Do something
}
// Or we can use the associated `Get` functions to just extract
// a specific error. This would return nil if that specific error doesn't
// exist.
perr := errwrap.GetType(err, new(os.PathError))
}
```
#### Custom Types
If you're already making custom types that properly wrap errors, then
you can get all the functionality of `errwraps.Contains` and such by
implementing the `Wrapper` interface with just one function. Example:
```go
type AppError {
Code ErrorCode
Err error
}
func (e *AppError) WrappedErrors() []error {
return []error{e.Err}
}
```
Now this works:
```go
err := &AppError{Err: fmt.Errorf("an error")}
if errwrap.ContainsType(err, fmt.Errorf("")) {
// This will work!
}
```

View File

@ -1,169 +0,0 @@
// Package errwrap implements methods to formalize error wrapping in Go.
//
// All of the top-level functions that take an `error` are built to be able
// to take any error, not just wrapped errors. This allows you to use errwrap
// without having to type-check and type-cast everywhere.
package errwrap
import (
"errors"
"reflect"
"strings"
)
// WalkFunc is the callback called for Walk.
type WalkFunc func(error)
// Wrapper is an interface that can be implemented by custom types to
// have all the Contains, Get, etc. functions in errwrap work.
//
// When Walk reaches a Wrapper, it will call the callback for every
// wrapped error in addition to the wrapper itself. Since all the top-level
// functions in errwrap use Walk, this means that all those functions work
// with your custom type.
type Wrapper interface {
WrappedErrors() []error
}
// Wrap defines that outer wraps inner, returning an error type that
// can be cleanly used with the other methods in this package, such as
// Contains, GetAll, etc.
//
// This function won't modify the error message at all (the outer message
// will be used).
func Wrap(outer, inner error) error {
return &wrappedError{
Outer: outer,
Inner: inner,
}
}
// Wrapf wraps an error with a formatting message. This is similar to using
// `fmt.Errorf` to wrap an error. If you're using `fmt.Errorf` to wrap
// errors, you should replace it with this.
//
// format is the format of the error message. The string '{{err}}' will
// be replaced with the original error message.
func Wrapf(format string, err error) error {
outerMsg := "<nil>"
if err != nil {
outerMsg = err.Error()
}
outer := errors.New(strings.Replace(
format, "{{err}}", outerMsg, -1))
return Wrap(outer, err)
}
// Contains checks if the given error contains an error with the
// message msg. If err is not a wrapped error, this will always return
// false unless the error itself happens to match this msg.
func Contains(err error, msg string) bool {
return len(GetAll(err, msg)) > 0
}
// ContainsType checks if the given error contains an error with
// the same concrete type as v. If err is not a wrapped error, this will
// check the err itself.
func ContainsType(err error, v interface{}) bool {
return len(GetAllType(err, v)) > 0
}
// Get is the same as GetAll but returns the deepest matching error.
func Get(err error, msg string) error {
es := GetAll(err, msg)
if len(es) > 0 {
return es[len(es)-1]
}
return nil
}
// GetType is the same as GetAllType but returns the deepest matching error.
func GetType(err error, v interface{}) error {
es := GetAllType(err, v)
if len(es) > 0 {
return es[len(es)-1]
}
return nil
}
// GetAll gets all the errors that might be wrapped in err with the
// given message. The order of the errors is such that the outermost
// matching error (the most recent wrap) is index zero, and so on.
func GetAll(err error, msg string) []error {
var result []error
Walk(err, func(err error) {
if err.Error() == msg {
result = append(result, err)
}
})
return result
}
// GetAllType gets all the errors that are the same type as v.
//
// The order of the return value is the same as described in GetAll.
func GetAllType(err error, v interface{}) []error {
var result []error
var search string
if v != nil {
search = reflect.TypeOf(v).String()
}
Walk(err, func(err error) {
var needle string
if err != nil {
needle = reflect.TypeOf(err).String()
}
if needle == search {
result = append(result, err)
}
})
return result
}
// Walk walks all the wrapped errors in err and calls the callback. If
// err isn't a wrapped error, this will be called once for err. If err
// is a wrapped error, the callback will be called for both the wrapper
// that implements error as well as the wrapped error itself.
func Walk(err error, cb WalkFunc) {
if err == nil {
return
}
switch e := err.(type) {
case *wrappedError:
cb(e.Outer)
Walk(e.Inner, cb)
case Wrapper:
cb(err)
for _, err := range e.WrappedErrors() {
Walk(err, cb)
}
default:
cb(err)
}
}
// wrappedError is an implementation of error that has both the
// outer and inner errors.
type wrappedError struct {
Outer error
Inner error
}
func (w *wrappedError) Error() string {
return w.Outer.Error()
}
func (w *wrappedError) WrappedErrors() []error {
return []error{w.Outer, w.Inner}
}

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@ -1 +0,0 @@
module github.com/hashicorp/errwrap

View File

@ -1,12 +0,0 @@
sudo: false
language: go
go:
- 1.x
branches:
only:
- master
script: make test testrace

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