forked from TrueCloudLab/distribution
80 lines
2.7 KiB
Go
80 lines
2.7 KiB
Go
package testutil
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import (
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"context"
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"fmt"
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"github.com/distribution/distribution/v3"
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"github.com/distribution/distribution/v3/internal/dcontext"
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"github.com/distribution/distribution/v3/manifest/manifestlist"
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"github.com/distribution/distribution/v3/manifest/ocischema"
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"github.com/distribution/distribution/v3/manifest/schema2"
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"github.com/opencontainers/go-digest"
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)
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// MakeManifestList constructs a manifest list out of a list of manifest digests
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func MakeManifestList(blobstatter distribution.BlobStatter, manifestDigests []digest.Digest) (*manifestlist.DeserializedManifestList, error) {
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ctx := dcontext.Background()
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manifestDescriptors := make([]manifestlist.ManifestDescriptor, 0, len(manifestDigests))
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for _, manifestDigest := range manifestDigests {
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descriptor, err := blobstatter.Stat(ctx, manifestDigest)
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if err != nil {
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return nil, err
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}
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platformSpec := manifestlist.PlatformSpec{
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Architecture: "atari2600",
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OS: "CP/M",
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Variant: "ternary",
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Features: []string{"VLIW", "superscalaroutoforderdevnull"},
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}
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manifestDescriptor := manifestlist.ManifestDescriptor{
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Descriptor: descriptor,
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Platform: platformSpec,
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}
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manifestDescriptors = append(manifestDescriptors, manifestDescriptor)
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}
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return manifestlist.FromDescriptors(manifestDescriptors)
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}
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// MakeSchema2Manifest constructs a schema 2 manifest from a given list of digests and returns
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// the digest of the manifest
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func MakeSchema2Manifest(repository distribution.Repository, digests []digest.Digest) (distribution.Manifest, error) {
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ctx := dcontext.Background()
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blobStore := repository.Blobs(ctx)
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var configJSON []byte
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d, err := blobStore.Put(ctx, schema2.MediaTypeImageConfig, configJSON)
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if err != nil {
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return nil, fmt.Errorf("unexpected error storing content in blobstore: %v", err)
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}
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builder := schema2.NewManifestBuilder(d, configJSON)
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return makeManifest(ctx, builder, digests)
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}
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func MakeOCIManifest(repository distribution.Repository, digests []digest.Digest) (distribution.Manifest, error) {
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ctx := dcontext.Background()
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blobStore := repository.Blobs(ctx)
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var configJSON []byte
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builder := ocischema.NewManifestBuilder(blobStore, configJSON, make(map[string]string))
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return makeManifest(ctx, builder, digests)
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}
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func makeManifest(ctx context.Context, builder distribution.ManifestBuilder, digests []digest.Digest) (distribution.Manifest, error) {
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for _, digest := range digests {
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if err := builder.AppendReference(distribution.Descriptor{Digest: digest}); err != nil {
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return nil, fmt.Errorf("unexpected error building manifest: %v", err)
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}
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}
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mfst, err := builder.Build(ctx)
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if err != nil {
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return nil, fmt.Errorf("unexpected error generating manifest: %v", err)
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}
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return mfst, nil
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}
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