88 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Go
		
	
	
			
		
		
	
	
			88 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Go
		
	
	
package testutil
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import (
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	"fmt"
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	"github.com/distribution/distribution/v3"
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	"github.com/distribution/distribution/v3/context"
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	"github.com/distribution/distribution/v3/manifest"
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	"github.com/distribution/distribution/v3/manifest/manifestlist"
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	"github.com/distribution/distribution/v3/manifest/schema1"
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	"github.com/distribution/distribution/v3/manifest/schema2"
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	"github.com/docker/libtrust"
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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 := context.Background()
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	var manifestDescriptors []manifestlist.ManifestDescriptor
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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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// MakeSchema1Manifest constructs a schema 1 manifest from a given list of digests and returns
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// the digest of the manifest
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func MakeSchema1Manifest(digests []digest.Digest) (distribution.Manifest, error) {
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	manifest := schema1.Manifest{
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		Versioned: manifest.Versioned{
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			SchemaVersion: 1,
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		},
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		Name: "who",
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		Tag:  "cares",
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	}
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	for _, digest := range digests {
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		manifest.FSLayers = append(manifest.FSLayers, schema1.FSLayer{BlobSum: digest})
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		manifest.History = append(manifest.History, schema1.History{V1Compatibility: ""})
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	}
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	pk, err := libtrust.GenerateECP256PrivateKey()
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	if err != nil {
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		return nil, fmt.Errorf("unexpected error generating private key: %v", err)
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	}
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	signedManifest, err := schema1.Sign(&manifest, pk)
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	if err != nil {
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		return nil, fmt.Errorf("error signing manifest: %v", err)
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	}
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	return signedManifest, nil
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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 := context.Background()
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	blobStore := repository.Blobs(ctx)
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	builder := schema2.NewManifestBuilder(blobStore, schema2.MediaTypeImageConfig, []byte{})
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	for _, digest := range digests {
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		builder.AppendReference(distribution.Descriptor{Digest: digest})
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	}
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	manifest, 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 manifest, nil
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}
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