55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
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package util
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import (
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"fmt"
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"github.com/containers/image/docker/reference"
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is "github.com/containers/image/storage"
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"github.com/containers/storage"
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)
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// ExpandTags takes unqualified names, parses them as image names, and returns
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// the fully expanded result, including a tag.
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func ExpandTags(tags []string) ([]string, error) {
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expanded := []string{}
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for _, tag := range tags {
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name, err := reference.ParseNormalizedNamed(tag)
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if err != nil {
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return nil, fmt.Errorf("error parsing tag %q: %v", tag, err)
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}
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name = reference.TagNameOnly(name)
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tag = ""
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if tagged, ok := name.(reference.NamedTagged); ok {
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tag = ":" + tagged.Tag()
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}
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expanded = append(expanded, name.Name()+tag)
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}
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return expanded, nil
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}
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// FindImage locates the locally-stored image which corresponds to a given name.
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func FindImage(store storage.Store, image string) (*storage.Image, error) {
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ref, err := is.Transport.ParseStoreReference(store, image)
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if err != nil {
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return nil, fmt.Errorf("error parsing reference to image %q: %v", image, err)
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}
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img, err := is.Transport.GetStoreImage(store, ref)
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if err != nil {
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return nil, fmt.Errorf("unable to locate image: %v", err)
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}
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return img, nil
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}
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// AddImageNames adds the specified names to the specified image.
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func AddImageNames(store storage.Store, image *storage.Image, addNames []string) error {
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names, err := ExpandTags(addNames)
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if err != nil {
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return err
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}
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err = store.SetNames(image.ID, append(image.Names, names...))
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if err != nil {
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return fmt.Errorf("error adding names (%v) to image %q: %v", names, image.ID, err)
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}
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return nil
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}
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