switch to go.podman.io/image/v5

vendor/go.podman.io/image/v5/internal/blobinfocache/blobinfocache.go

@@ -0,0 +1,55 @@
+package blobinfocache
+
+import (
+	digest "github.com/opencontainers/go-digest"
+	"go.podman.io/image/v5/types"
+)
+
+// FromBlobInfoCache returns a BlobInfoCache2 based on a BlobInfoCache, returning the original
+// object if it implements BlobInfoCache2, or a wrapper which discards compression information
+// if it only implements BlobInfoCache.
+func FromBlobInfoCache(bic types.BlobInfoCache) BlobInfoCache2 {
+	if bic2, ok := bic.(BlobInfoCache2); ok {
+		return bic2
+	}
+	return &v1OnlyBlobInfoCache{
+		BlobInfoCache: bic,
+	}
+}
+
+type v1OnlyBlobInfoCache struct {
+	types.BlobInfoCache
+}
+
+func (bic *v1OnlyBlobInfoCache) Open() {
+}
+
+func (bic *v1OnlyBlobInfoCache) Close() {
+}
+
+func (bic *v1OnlyBlobInfoCache) UncompressedDigestForTOC(tocDigest digest.Digest) digest.Digest {
+	return ""
+}
+
+func (bic *v1OnlyBlobInfoCache) RecordTOCUncompressedPair(tocDigest digest.Digest, uncompressed digest.Digest) {
+}
+
+func (bic *v1OnlyBlobInfoCache) RecordDigestCompressorData(anyDigest digest.Digest, data DigestCompressorData) {
+}
+
+func (bic *v1OnlyBlobInfoCache) CandidateLocations2(transport types.ImageTransport, scope types.BICTransportScope, digest digest.Digest, options CandidateLocations2Options) []BICReplacementCandidate2 {
+	return nil
+}
+
+// CandidateLocationsFromV2 converts a slice of BICReplacementCandidate2 to a slice of
+// types.BICReplacementCandidate, dropping compression information.
+func CandidateLocationsFromV2(v2candidates []BICReplacementCandidate2) []types.BICReplacementCandidate {
+	candidates := make([]types.BICReplacementCandidate, 0, len(v2candidates))
+	for _, c := range v2candidates {
+		candidates = append(candidates, types.BICReplacementCandidate{
+			Digest:   c.Digest,
+			Location: c.Location,
+		})
+	}
+	return candidates
+}