Refactor validate for GitHub Actions

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/validate.yml

@@ -0,0 +1,44 @@
+name: validate
+
+on:
+  push:
+    branches:
+      - 'master'
+    tags:
+      - 'v*'
+      - 'dockerfile/*'
+  pull_request:
+    branches:
+      - 'master'
+
+env:
+  REPO_SLUG_ORIGIN: "moby/buildkit:latest"
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - script: ./hack/lint
+          - script: ./hack/validate-vendor
+          - script: ./hack/validate-generated-files
+          - script: ./hack/validate-shfmt
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          driver-opts: image=${{ env.REPO_SLUG_ORIGIN }}
+      -
+        name: Run
+        run: |
+          ${{ matrix.script }}
+      -
+        name: Dump context
+        if: always()
+        uses: crazy-max/ghaction-dump-context@v1

.travis.yml

@@ -1,5 +1,21 @@
-dist: bionic
 sudo: required
+language: minimal
+
+env:
+  global:
+    - DOCKER_CHANNEL="stable"
+    - PLATFORMS="linux/amd64,linux/arm/v7,linux/arm64,linux/s390x,linux/ppc64le"
+    - PREFER_BUILDCTL="1"
+
+before_install:
+  # update docker
+  - curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+  - sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) $DOCKER_CHANNEL"
+  - sudo apt-get update
+  - sudo apt-get -y -o Dpkg::Options::="--force-confnew" install docker-ce docker-ce-cli
+  # check
+  - sudo systemctl restart docker
+  - docker info
 
 install:
   - docker run --rm --privileged linuxkit/binfmt:v0.8
@@ -10,11 +26,6 @@ install:
 after_script:
   - if [[ "$TRAVIS_TEST_RESULT" == 1 ]]; then docker ps -a && docker logs buildkit && sudo dmesg; fi
 
-env:
-  global:
-    - PLATFORMS="linux/amd64,linux/arm/v7,linux/arm64,linux/s390x,linux/ppc64le"
-    - PREFER_BUILDCTL="1"
-
 jobs:
   include:
     - stage: building

hack/lint

@@ -1,37 +1,6 @@
 #!/usr/bin/env bash
 
 . $(dirname $0)/util
-set -eu -o pipefail -x
+set -e
 
-: ${CONTINUOUS_INTEGRATION=}
+buildxCmd build --file ./hack/dockerfiles/lint.Dockerfile .
-
-progressFlag=""
-if [ "$CONTINUOUS_INTEGRATION" == "true" ]; then progressFlag="--progress=plain"; fi
-
-lintDocker() {
-  export DOCKER_BUILDKIT=1
-  iidfile=$(mktemp -t docker-iidfile.XXXXXXXXXX)
-  docker build --iidfile $iidfile -f ./hack/dockerfiles/lint.Dockerfile --force-rm .
-  iid=$(cat $iidfile)
-  docker rmi $iid
-  rm -f $iidfile
-}
-
-lint() {
-  buildctl build $progressFlag --frontend=dockerfile.v0 \
-    --local context=. --local dockerfile=. \
-    --opt filename=./hack/dockerfiles/lint.Dockerfile
-}
-
-case $buildmode in
-  "buildkit")
-    lint
-    ;;
-  "docker-buildkit")
-    lintDocker
-    ;;
-  *)
-    echo "Unsupported build mode: $buildmode" >&2
-    exit 1
-    ;;
-esac

hack/util

@@ -1,35 +1,46 @@
 #!/usr/bin/env sh
+export BUILDX_NO_DEFAULT_LOAD=true
 
-: ${PREFER_BUILDCTL=}
+: ${CONTINUOUS_INTEGRATION=}
-: ${PREFER_LEGACY=}
+: ${CI=}
+: ${GITHUB_ACTIONS=}
+: ${DOCKER_BUILDKIT=}
 : ${TRAVIS_EVENT_TYPE=}
 : ${TRAVIS_BRANCH=}
+: ${CACHE_DIR=}
 
-newerEqualThan() { # $1=minimum wanted version $2=actual-version
+progressFlag=""
-  [ "$1" = "$(printf "$1\n$2" | sort -V | head -n 1)" ]
+if [ "$CONTINUOUS_INTEGRATION" = "true" ] || [ "$CI" = "true" ]; then
+  progressFlag="--progress=plain"
+fi
+
+buildmode="buildkit"
+buildxCmd() {
+  if docker buildx version >/dev/null 2>&1; then
+    set -x
+    docker buildx "$@" $progressFlag
+  elif buildx version >/dev/null 2>&1; then
+    set -x
+    buildx "$@" $progressFlag
+  elif docker version >/dev/null 2>&1; then
+    set -x
+    DOCKER_BUILDKIT=1 docker "$@" $progressFlag
+  else
+    echo >&2 "ERROR: Please enable DOCKER_BUILDKIT or install standalone buildx"
+    exit 1
+  fi
 }
 
-buildmode="legacy"
+cachetype=""
-if [ "$PREFER_BUILDCTL" = "1" ]; then
-  buildmode="buildkit"
-else
-  serverVersion=$(docker info --format '{{.ServerVersion}}')
-  experimental=$(docker info --format '{{.ExperimentalBuild}}')
-  if [ "$PREFER_LEGACY" != "1" ] && (newerEqualThan "18.09" $serverVersion ||
-    (newerEqualThan "18.06" $serverVersion && [ "true" = "$experimental" ]) ||
-    [ "$DOCKER_BUILDKIT" = "1" ]); then
-    buildmode="docker-buildkit"
-  fi
-fi
-if [ "$buildmode" = "legacy" ]; then
-  echo "\"legacy\" buildmode is no longer supported. Please enable DOCKER_BUILDKIT or install standalone BuildKit." >&2
-  exit 1
-fi
-
 cacheref=""
 currentref=""
-if [ "$TRAVIS_EVENT_TYPE" = "pull_request" ]; then
+if [ "$GITHUB_ACTIONS" = "true" ]; then
+  currentref="git://github.com/moby/buildkit#$GITHUB_REF"
+  cachetype="local"
+  cacheref="$CACHE_DIR"
+elif [ "$TRAVIS_EVENT_TYPE" = "pull_request" ]; then
   currentref="git://github.com/moby/buildkit#refs/pull/$TRAVIS_PULL_REQUEST/merge"
+  cachetype="registry"
   cacheref="cicache.buildk.it/moby/buildkit/pr$TRAVIS_BUILD_ID"
 elif [ -n "$TRAVIS_BRANCH" ]; then
   currentref="git://github.com/$TRAVIS_REPO_SLUG#$TRAVIS_BRANCH"
@@ -37,7 +48,6 @@ fi
 
 currentcontext="."
 currentcontextBuildctl="--local context=. --local dockerfile=."
-
 if [ -n "$currentref" ]; then
   currentcontext="--build-arg BUILDKIT_CONTEXT_KEEP_GIT_DIR=1 $currentref"
   currentcontextBuildctl="--opt context=$currentref --opt build-arg:BUILDKIT_CONTEXT_KEEP_GIT_DIR=1"

hack/validate-generated-files

@@ -1,31 +1,15 @@
 #!/usr/bin/env bash
-
+set -eu
-: ${CONTINUOUS_INTEGRATION=}
-
-progressFlag=""
-if [ "$CONTINUOUS_INTEGRATION" == "true" ]; then progressFlag="--progress=plain"; fi
 
 case ${1:-} in
   '')
     . $(dirname $0)/util
     gogo_version=$(awk '$1 == "github.com/gogo/protobuf" { print $2 }' go.mod)
-    case $buildmode in
+    buildxCmd build \
-      "buildkit")
+      --target validate \
-        buildctl build $progressFlag --frontend=dockerfile.v0 --local context=. --local dockerfile=. --opt build-arg:GOGO_VERSION=$gogo_version --opt target=validate --opt filename=./hack/dockerfiles/generated-files.Dockerfile
+      --build-arg "GOGO_VERSION=$gogo_version" \
-        ;;
+      --file ./hack/dockerfiles/generated-files.Dockerfile \
-      "docker-buildkit")
+      .
-        export DOCKER_BUILDKIT=1
-        iidfile=$(mktemp -t docker-iidfile.XXXXXXXXXX)
-        docker build --iidfile $iidfile --build-arg GOGO_VERSION=$gogo_version -f ./hack/dockerfiles/generated-files.Dockerfile --target validate --force-rm . || exit 1
-        iid=$(cat $iidfile)
-        docker rmi $iid
-        rm -f $iidfile
-        ;;
-      *)
-        echo "Unsupported build mode: $buildmode" >&2
-        exit 1
-        ;;
-    esac
     ;;
   check)
     diffs="$(git status --porcelain -- **/*.pb.go 2>/dev/null)"

hack/validate-shfmt

@@ -1,29 +1,10 @@
 #!/usr/bin/env sh
 
 . $(dirname $0)/util
-set -eu
+set -e
 
-: ${CONTINUOUS_INTEGRATION=}
+buildxCmd build \
-: ${DOCKER_BUILDKIT=}
+  --target validate \
-
+  --output "type=cacheonly" \
-progressFlag=""
+  --file ./hack/dockerfiles/shfmt.Dockerfile \
-if [ "$CONTINUOUS_INTEGRATION" = "true" ]; then progressFlag="--progress=plain"; fi
+  .
-
-cacheOnlyFlag=""
-if ! docker build --help 2>&1 | grep buildx >/dev/null; then cacheOnlyFlag="-o type=cacheonly"; fi
-
-case $buildmode in
-  "buildkit")
-    buildctl build $progressFlag --frontend=dockerfile.v0 --local context=. --local dockerfile=. \
-      --opt target=validate \
-      --opt filename=./hack/dockerfiles/shfmt.Dockerfile
-    ;;
-  "docker-buildkit")
-    export DOCKER_BUILDKIT=1
-    docker build $progressFlag $cacheOnlyFlag -f ./hack/dockerfiles/shfmt.Dockerfile --target validate .
-    ;;
-  *)
-    echo "Unsupported build mode: $buildmode" >&2
-    exit 1
-    ;;
-esac

hack/validate-vendor

@@ -1,33 +1,13 @@
 #!/usr/bin/env sh
-
 set -eu
 
-: ${CONTINUOUS_INTEGRATION=}
-: ${DOCKER_BUILDKIT=}
-
-progressFlag=""
-if [ "$CONTINUOUS_INTEGRATION" = "true" ]; then progressFlag="--progress=plain"; fi
-
 case ${1:-} in
   '')
     . $(dirname $0)/util
-    case $buildmode in
+    buildxCmd build \
-      "buildkit")
+      --target validate \
-        buildctl build $progressFlag --frontend=dockerfile.v0 --local context=. --local dockerfile=. --opt filename=./hack/dockerfiles/vendor.Dockerfile --opt target=validate
+      --file ./hack/dockerfiles/vendor.Dockerfile \
-        ;;
+      .
-      "docker-buildkit")
-        export DOCKER_BUILDKIT=1
-        iidfile=$(mktemp -t docker-iidfile.XXXXXXXXXX)
-        docker build --iidfile $iidfile -f ./hack/dockerfiles/vendor.Dockerfile --target validate --force-rm . || exit 1
-        iid=$(cat $iidfile)
-        docker rmi $iid
-        rm -f $iidfile
-        ;;
-      *)
-        echo "Unsupported build mode: $buildmode" >&2
-        exit 1
-        ;;
-    esac
     ;;
   check)
     status="$(git status --porcelain -- go.mod go.sum vendor 2>/dev/null)"