mirror of
https://gitea.com/Lydanne/buildx.git
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85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
package content
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import (
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"context"
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api "github.com/containerd/containerd/api/services/content/v1"
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"github.com/containerd/containerd/content"
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"github.com/containerd/containerd/content/proxy"
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"github.com/moby/buildkit/session"
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digest "github.com/opencontainers/go-digest"
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ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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"google.golang.org/grpc/metadata"
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)
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type callerContentStore struct {
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store content.Store
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storeID string
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}
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func (cs *callerContentStore) choose(ctx context.Context) context.Context {
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nsheader := metadata.Pairs(GRPCHeaderID, cs.storeID)
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md, ok := metadata.FromOutgoingContext(ctx) // merge with outgoing context.
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if !ok {
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md = nsheader
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} else {
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// order ensures the latest is first in this list.
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md = metadata.Join(nsheader, md)
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}
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return metadata.NewOutgoingContext(ctx, md)
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}
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func (cs *callerContentStore) Info(ctx context.Context, dgst digest.Digest) (content.Info, error) {
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ctx = cs.choose(ctx)
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return cs.store.Info(ctx, dgst)
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}
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func (cs *callerContentStore) Update(ctx context.Context, info content.Info, fieldpaths ...string) (content.Info, error) {
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ctx = cs.choose(ctx)
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return cs.store.Update(ctx, info, fieldpaths...)
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}
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func (cs *callerContentStore) Walk(ctx context.Context, fn content.WalkFunc, fs ...string) error {
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ctx = cs.choose(ctx)
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return cs.store.Walk(ctx, fn, fs...)
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}
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func (cs *callerContentStore) Delete(ctx context.Context, dgst digest.Digest) error {
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ctx = cs.choose(ctx)
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return cs.store.Delete(ctx, dgst)
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}
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func (cs *callerContentStore) ListStatuses(ctx context.Context, fs ...string) ([]content.Status, error) {
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ctx = cs.choose(ctx)
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return cs.store.ListStatuses(ctx, fs...)
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}
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func (cs *callerContentStore) Status(ctx context.Context, ref string) (content.Status, error) {
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ctx = cs.choose(ctx)
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return cs.store.Status(ctx, ref)
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}
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func (cs *callerContentStore) Abort(ctx context.Context, ref string) error {
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ctx = cs.choose(ctx)
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return cs.store.Abort(ctx, ref)
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}
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func (cs *callerContentStore) Writer(ctx context.Context, opts ...content.WriterOpt) (content.Writer, error) {
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ctx = cs.choose(ctx)
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return cs.store.Writer(ctx, opts...)
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}
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func (cs *callerContentStore) ReaderAt(ctx context.Context, desc ocispec.Descriptor) (content.ReaderAt, error) {
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ctx = cs.choose(ctx)
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return cs.store.ReaderAt(ctx, desc)
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}
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// NewCallerStore creates content.Store from session.Caller with specified storeID
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func NewCallerStore(c session.Caller, storeID string) content.Store {
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client := api.NewContentClient(c.Conn())
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return &callerContentStore{
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store: proxy.NewContentStore(client),
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storeID: storeID,
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}
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}
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