distribution/testutil/manifests.go
Sebastiaan van Stijn 1d33874951
go.mod: change imports to github.com/distribution/distribution/v3
Go 1.13 and up enforce import paths to be versioned if a project
contains a go.mod and has released v2 or up.

The current v2.x branches (and releases) do not yet have a go.mod,
and therefore are still allowed to be imported with a non-versioned
import path (go modules add a `+incompatible` annotation in that case).

However, now that this project has a `go.mod` file, incompatible
import paths will not be accepted by go modules, and attempting
to use code from this repository will fail.

This patch uses `v3` for the import-paths (not `v2`), because changing
import paths itself is a breaking change, which means that  the
next release should increment the "major" version to comply with
SemVer (as go modules dictate).

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-02-08 18:30:46 +01:00

87 lines
2.8 KiB
Go

package testutil
import (
"fmt"
"github.com/distribution/distribution/v3"
"github.com/distribution/distribution/v3/context"
"github.com/distribution/distribution/v3/manifest"
"github.com/distribution/distribution/v3/manifest/manifestlist"
"github.com/distribution/distribution/v3/manifest/schema1"
"github.com/distribution/distribution/v3/manifest/schema2"
"github.com/docker/libtrust"
"github.com/opencontainers/go-digest"
)
// MakeManifestList constructs a manifest list out of a list of manifest digests
func MakeManifestList(blobstatter distribution.BlobStatter, manifestDigests []digest.Digest) (*manifestlist.DeserializedManifestList, error) {
ctx := context.Background()
var manifestDescriptors []manifestlist.ManifestDescriptor
for _, manifestDigest := range manifestDigests {
descriptor, err := blobstatter.Stat(ctx, manifestDigest)
if err != nil {
return nil, err
}
platformSpec := manifestlist.PlatformSpec{
Architecture: "atari2600",
OS: "CP/M",
Variant: "ternary",
Features: []string{"VLIW", "superscalaroutoforderdevnull"},
}
manifestDescriptor := manifestlist.ManifestDescriptor{
Descriptor: descriptor,
Platform: platformSpec,
}
manifestDescriptors = append(manifestDescriptors, manifestDescriptor)
}
return manifestlist.FromDescriptors(manifestDescriptors)
}
// MakeSchema1Manifest constructs a schema 1 manifest from a given list of digests and returns
// the digest of the manifest
func MakeSchema1Manifest(digests []digest.Digest) (distribution.Manifest, error) {
manifest := schema1.Manifest{
Versioned: manifest.Versioned{
SchemaVersion: 1,
},
Name: "who",
Tag: "cares",
}
for _, digest := range digests {
manifest.FSLayers = append(manifest.FSLayers, schema1.FSLayer{BlobSum: digest})
manifest.History = append(manifest.History, schema1.History{V1Compatibility: ""})
}
pk, err := libtrust.GenerateECP256PrivateKey()
if err != nil {
return nil, fmt.Errorf("unexpected error generating private key: %v", err)
}
signedManifest, err := schema1.Sign(&manifest, pk)
if err != nil {
return nil, fmt.Errorf("error signing manifest: %v", err)
}
return signedManifest, nil
}
// MakeSchema2Manifest constructs a schema 2 manifest from a given list of digests and returns
// the digest of the manifest
func MakeSchema2Manifest(repository distribution.Repository, digests []digest.Digest) (distribution.Manifest, error) {
ctx := context.Background()
blobStore := repository.Blobs(ctx)
builder := schema2.NewManifestBuilder(blobStore, schema2.MediaTypeImageConfig, []byte{})
for _, digest := range digests {
builder.AppendReference(distribution.Descriptor{Digest: digest})
}
manifest, err := builder.Build(ctx)
if err != nil {
return nil, fmt.Errorf("unexpected error generating manifest: %v", err)
}
return manifest, nil
}