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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| package kubepkg | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "github.com/google/go-containerregistry/pkg/name" | ||
| v1 "github.com/google/go-containerregistry/pkg/v1" | ||
| "github.com/google/go-containerregistry/pkg/v1/remote" | ||
| kubepkgv1alpha1 "github.com/octohelm/kubepkgspec/pkg/apis/kubepkg/v1alpha1" | ||
| specv1 "github.com/opencontainers/image-spec/specs-go/v1" | ||
| "iter" | ||
| ) | ||
|
|
||
| func Push(i ImageIter, options ...remote.Option) error { | ||
| for ref, img := range i.Images() { | ||
| if err := remote.Put(ref, img, options...); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return i.Err() | ||
| } | ||
|
|
||
| func KubePkg(idx v1.ImageIndex) (*kubepkgv1alpha1.KubePkg, error) { | ||
| indexManifest, err := idx.IndexManifest() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| for _, m := range indexManifest.Manifests { | ||
| if m.ArtifactType == ArtifactType { | ||
| img, err := idx.Image(m.Digest) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| rawConfig, err := img.RawConfigFile() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| kpkg := &kubepkgv1alpha1.KubePkg{} | ||
| if err := json.Unmarshal(rawConfig, kpkg); err != nil { | ||
| return nil, err | ||
| } | ||
| return kpkg, nil | ||
| } | ||
| } | ||
|
|
||
| return nil, nil | ||
| } | ||
|
|
||
| func WithRenamer(renamer Renamer) ImageIterOption { | ||
| return func(i *imageIter) { | ||
| i.renamer = renamer | ||
| } | ||
| } | ||
|
|
||
| func WithRegistry(r Registry) ImageIterOption { | ||
| return func(i *imageIter) { | ||
| i.registry = r | ||
| } | ||
| } | ||
|
|
||
| type ImageIterOption func(i *imageIter) | ||
|
|
||
| func NewImageIter(idx v1.ImageIndex, options ...ImageIterOption) ImageIter { | ||
| i := &imageIter{ | ||
| ImageIndex: idx, | ||
| } | ||
|
|
||
| for _, o := range options { | ||
| o(i) | ||
| } | ||
|
|
||
| return i | ||
| } | ||
|
|
||
| type ImageIter interface { | ||
| Images() iter.Seq2[name.Reference, remote.Taggable] | ||
| Err() error | ||
| } | ||
|
|
||
| type imageIter struct { | ||
| ImageIndex v1.ImageIndex | ||
|
|
||
| registry Registry | ||
| renamer Renamer | ||
|
|
||
| err error | ||
| } | ||
|
|
||
| func (r *imageIter) Err() error { | ||
| return r.err | ||
| } | ||
|
|
||
| func (r *imageIter) Done(err error) { | ||
| r.err = err | ||
| } | ||
|
|
||
| func (p *imageIter) Repository(repoName string) (name.Repository, error) { | ||
| if r := p.registry; r != nil { | ||
| return r.Repo(repoName), nil | ||
| } | ||
| return name.NewRepository(repoName) | ||
| } | ||
|
|
||
| func (r *imageIter) Images() iter.Seq2[name.Reference, remote.Taggable] { | ||
| indexManifest, err := r.ImageIndex.IndexManifest() | ||
| if err != nil { | ||
| r.Done(err) | ||
|
|
||
| return func(yield func(name.Reference, remote.Taggable) bool) { | ||
|
|
||
| } | ||
| } | ||
|
|
||
| return func(yield func(name.Reference, remote.Taggable) bool) { | ||
| for _, d := range indexManifest.Manifests { | ||
| if d.Annotations == nil { | ||
| continue | ||
| } | ||
|
|
||
| imageName := d.Annotations[specv1.AnnotationBaseImageName] | ||
| if imageName == "" { | ||
| continue | ||
| } | ||
|
|
||
| tag := d.Annotations[specv1.AnnotationRefName] | ||
| if tag == "" { | ||
| continue | ||
| } | ||
|
|
||
| repo, err := r.Repository(imageName) | ||
| if err != nil { | ||
| r.Done(err) | ||
| return | ||
| } | ||
|
|
||
| if r.renamer != nil { | ||
| renamed, err := r.Repository(r.renamer.Rename(repo)) | ||
| if err != nil { | ||
| r.Done(err) | ||
| return | ||
| } | ||
| repo = renamed | ||
| } | ||
|
|
||
| ref := repo.Tag(tag) | ||
|
|
||
| if d.MediaType.IsImage() { | ||
| img, err := r.ImageIndex.Image(d.Digest) | ||
| if err != nil { | ||
| r.Done(err) | ||
| return | ||
| } | ||
|
|
||
| if !yield(ref, img) { | ||
| return | ||
| } | ||
| } else if d.MediaType.IsIndex() { | ||
| index, err := r.ImageIndex.ImageIndex(d.Digest) | ||
| if err != nil { | ||
| r.Done(err) | ||
| return | ||
| } | ||
| if !yield(ref, index) { | ||
| return | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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