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package blobinfocache
import (
"github.com/containers/image/v5/types"
digest "github.com/opencontainers/go-digest"
)
// 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
}
|
