124 lines
2.6 KiB
Go
124 lines
2.6 KiB
Go
package solver
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import (
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"encoding/json"
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"sort"
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"github.com/moby/buildkit/cache"
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"github.com/moby/buildkit/solver/pb"
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"github.com/moby/buildkit/util/progress/logs"
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"github.com/moby/buildkit/worker"
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digest "github.com/opencontainers/go-digest"
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"github.com/pkg/errors"
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"golang.org/x/net/context"
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)
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type execOp struct {
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op *pb.ExecOp
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cm cache.Manager
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w worker.Worker
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}
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func newExecOp(op *pb.Op_Exec, cm cache.Manager, w worker.Worker) (Op, error) {
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return &execOp{
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op: op.Exec,
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cm: cm,
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w: w,
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}, nil
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}
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func (e *execOp) CacheKey(ctx context.Context, inputs []string) (string, error) {
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dt, err := json.Marshal(struct {
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Inputs []string
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Exec *pb.ExecOp
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}{
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Inputs: inputs,
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Exec: e.op,
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})
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if err != nil {
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return "", err
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}
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return digest.FromBytes(dt).String(), nil
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}
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func (e *execOp) Run(ctx context.Context, inputs []Reference) ([]Reference, error) {
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var mounts []worker.Mount
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var outputs []cache.MutableRef
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var root cache.Mountable
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defer func() {
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for _, o := range outputs {
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if o != nil {
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s, err := o.Freeze() // TODO: log error
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if err == nil {
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go s.Release(ctx)
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}
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}
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}
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}()
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for _, m := range e.op.Mounts {
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var mountable cache.Mountable
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var ref cache.ImmutableRef
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if m.Input != -1 {
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if int(m.Input) > len(inputs) {
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return nil, errors.Errorf("missing input %d", m.Input)
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}
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inp := inputs[int(m.Input)]
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if sys, ok := inp.(interface {
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Sys() Reference
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}); ok {
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inp = sys.Sys()
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}
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var ok bool
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ref, ok = inp.(cache.ImmutableRef)
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if !ok {
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return nil, errors.Errorf("invalid reference for exec %T", inputs[int(m.Input)])
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}
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mountable = ref
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}
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if m.Output != -1 {
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active, err := e.cm.New(ctx, ref) // TODO: should be method
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if err != nil {
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return nil, err
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}
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outputs = append(outputs, active)
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mountable = active
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}
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if m.Dest == pb.RootMount {
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root = mountable
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} else {
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mounts = append(mounts, worker.Mount{Src: mountable, Dest: m.Dest})
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}
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}
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sort.Slice(mounts, func(i, j int) bool {
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return mounts[i].Dest < mounts[j].Dest
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})
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meta := worker.Meta{
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Args: e.op.Meta.Args,
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Env: e.op.Meta.Env,
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Cwd: e.op.Meta.Cwd,
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}
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stdout, stderr := logs.NewLogStreams(ctx)
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defer stdout.Close()
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defer stderr.Close()
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if err := e.w.Exec(ctx, meta, root, mounts, stdout, stderr); err != nil {
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return nil, errors.Wrapf(err, "worker failed running %v", meta.Args)
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}
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refs := []Reference{}
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for i, o := range outputs {
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ref, err := o.ReleaseAndCommit(ctx)
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if err != nil {
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return nil, errors.Wrapf(err, "error committing %s", o.ID())
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}
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refs = append(refs, ref)
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outputs[i] = nil
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}
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return refs, nil
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}
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