vendor: update buildkit to v0.11.0-rc4

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Signed-off-by: Justin Chadwell <me@jedevc.com>

vendor/github.com/moby/buildkit/client/ociindex/ociindex.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"io"
 	"os"
+	"path"
 
 	"github.com/gofrs/flock"
 	ocispecs "github.com/opencontainers/image-spec/specs-go/v1"
@@ -11,16 +12,132 @@ import (
 )
 
 const (
-	// IndexJSONLockFileSuffix is the suffix of the lock file
-	IndexJSONLockFileSuffix = ".lock"
+	// indexFile is the name of the index file
+	indexFile = "index.json"
+
+	// lockFileSuffix is the suffix of the lock file
+	lockFileSuffix = ".lock"
 )
 
-// PutDescToIndex puts desc to index with tag.
-// Existing manifests with the same tag will be removed from the index.
-func PutDescToIndex(index *ocispecs.Index, desc ocispecs.Descriptor, tag string) error {
-	if index == nil {
-		index = &ocispecs.Index{}
+type StoreIndex struct {
+	indexPath string
+	lockPath  string
+}
+
+func NewStoreIndex(storePath string) StoreIndex {
+	indexPath := path.Join(storePath, indexFile)
+	return StoreIndex{
+		indexPath: indexPath,
+		lockPath:  indexPath + lockFileSuffix,
 	}
+}
+
+func (s StoreIndex) Read() (*ocispecs.Index, error) {
+	lock := flock.New(s.lockPath)
+	locked, err := lock.TryRLock()
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not lock %s", s.lockPath)
+	}
+	if !locked {
+		return nil, errors.Errorf("could not lock %s", s.lockPath)
+	}
+	defer func() {
+		lock.Unlock()
+		os.RemoveAll(s.lockPath)
+	}()
+
+	b, err := os.ReadFile(s.indexPath)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not read %s", s.indexPath)
+	}
+	var idx ocispecs.Index
+	if err := json.Unmarshal(b, &idx); err != nil {
+		return nil, errors.Wrapf(err, "could not unmarshal %s (%q)", s.indexPath, string(b))
+	}
+	return &idx, nil
+}
+
+func (s StoreIndex) Put(tag string, desc ocispecs.Descriptor) error {
+	lock := flock.New(s.lockPath)
+	locked, err := lock.TryLock()
+	if err != nil {
+		return errors.Wrapf(err, "could not lock %s", s.lockPath)
+	}
+	if !locked {
+		return errors.Errorf("could not lock %s", s.lockPath)
+	}
+	defer func() {
+		lock.Unlock()
+		os.RemoveAll(s.lockPath)
+	}()
+
+	f, err := os.OpenFile(s.indexPath, os.O_RDWR|os.O_CREATE, 0644)
+	if err != nil {
+		return errors.Wrapf(err, "could not open %s", s.indexPath)
+	}
+	defer f.Close()
+
+	var idx ocispecs.Index
+	b, err := io.ReadAll(f)
+	if err != nil {
+		return errors.Wrapf(err, "could not read %s", s.indexPath)
+	}
+	if len(b) > 0 {
+		if err := json.Unmarshal(b, &idx); err != nil {
+			return errors.Wrapf(err, "could not unmarshal %s (%q)", s.indexPath, string(b))
+		}
+	}
+
+	if err = insertDesc(&idx, desc, tag); err != nil {
+		return err
+	}
+
+	b, err = json.Marshal(idx)
+	if err != nil {
+		return err
+	}
+	if _, err = f.WriteAt(b, 0); err != nil {
+		return err
+	}
+	if err = f.Truncate(int64(len(b))); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (s StoreIndex) Get(tag string) (*ocispecs.Descriptor, error) {
+	idx, err := s.Read()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, m := range idx.Manifests {
+		if t, ok := m.Annotations[ocispecs.AnnotationRefName]; ok && t == tag {
+			return &m, nil
+		}
+	}
+	return nil, nil
+}
+
+func (s StoreIndex) GetSingle() (*ocispecs.Descriptor, error) {
+	idx, err := s.Read()
+	if err != nil {
+		return nil, err
+	}
+
+	if len(idx.Manifests) == 1 {
+		return &idx.Manifests[0], nil
+	}
+	return nil, nil
+}
+
+// insertDesc puts desc to index with tag.
+// Existing manifests with the same tag will be removed from the index.
+func insertDesc(index *ocispecs.Index, desc ocispecs.Descriptor, tag string) error {
+	if index == nil {
+		return nil
+	}
+
 	if index.SchemaVersion == 0 {
 		index.SchemaVersion = 2
 	}
@@ -41,73 +158,3 @@ func PutDescToIndex(index *ocispecs.Index, desc ocispecs.Descriptor, tag string)
 	index.Manifests = append(index.Manifests, desc)
 	return nil
 }
-
-func PutDescToIndexJSONFileLocked(indexJSONPath string, desc ocispecs.Descriptor, tag string) error {
-	lockPath := indexJSONPath + IndexJSONLockFileSuffix
-	lock := flock.New(lockPath)
-	locked, err := lock.TryLock()
-	if err != nil {
-		return errors.Wrapf(err, "could not lock %s", lockPath)
-	}
-	if !locked {
-		return errors.Errorf("could not lock %s", lockPath)
-	}
-	defer func() {
-		lock.Unlock()
-		os.RemoveAll(lockPath)
-	}()
-	f, err := os.OpenFile(indexJSONPath, os.O_RDWR|os.O_CREATE, 0644)
-	if err != nil {
-		return errors.Wrapf(err, "could not open %s", indexJSONPath)
-	}
-	defer f.Close()
-	var idx ocispecs.Index
-	b, err := io.ReadAll(f)
-	if err != nil {
-		return errors.Wrapf(err, "could not read %s", indexJSONPath)
-	}
-	if len(b) > 0 {
-		if err := json.Unmarshal(b, &idx); err != nil {
-			return errors.Wrapf(err, "could not unmarshal %s (%q)", indexJSONPath, string(b))
-		}
-	}
-	if err = PutDescToIndex(&idx, desc, tag); err != nil {
-		return err
-	}
-	b, err = json.Marshal(idx)
-	if err != nil {
-		return err
-	}
-	if _, err = f.WriteAt(b, 0); err != nil {
-		return err
-	}
-	if err = f.Truncate(int64(len(b))); err != nil {
-		return err
-	}
-	return nil
-}
-
-func ReadIndexJSONFileLocked(indexJSONPath string) (*ocispecs.Index, error) {
-	lockPath := indexJSONPath + IndexJSONLockFileSuffix
-	lock := flock.New(lockPath)
-	locked, err := lock.TryRLock()
-	if err != nil {
-		return nil, errors.Wrapf(err, "could not lock %s", lockPath)
-	}
-	if !locked {
-		return nil, errors.Errorf("could not lock %s", lockPath)
-	}
-	defer func() {
-		lock.Unlock()
-		os.RemoveAll(lockPath)
-	}()
-	b, err := os.ReadFile(indexJSONPath)
-	if err != nil {
-		return nil, errors.Wrapf(err, "could not read %s", indexJSONPath)
-	}
-	var idx ocispecs.Index
-	if err := json.Unmarshal(b, &idx); err != nil {
-		return nil, errors.Wrapf(err, "could not unmarshal %s (%q)", indexJSONPath, string(b))
-	}
-	return &idx, nil
-}