diff options
Diffstat (limited to 'libpod/image/parts.go')
-rw-r--r-- | libpod/image/parts.go | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/libpod/image/parts.go b/libpod/image/parts.go deleted file mode 100644 index 08421320c..000000000 --- a/libpod/image/parts.go +++ /dev/null @@ -1,104 +0,0 @@ -package image - -import ( - "strings" - - "github.com/containers/image/v5/docker/reference" - "github.com/pkg/errors" -) - -// imageParts describes the parts of an image's name -type imageParts struct { - unnormalizedRef reference.Named // WARNING: Did not go through docker.io[/library] normalization - hasRegistry bool -} - -// Registries must contain a ":" or a "." or be localhost; this helper exists for users of reference.Parse. -// For inputs that should use the docker.io[/library] normalization, use reference.ParseNormalizedNamed instead. -func isRegistry(name string) bool { - return strings.ContainsAny(name, ".:") || name == "localhost" -} - -// GetImageBaseName uses decompose and string splits to obtain the base -// name of an image. Doing this here because it beats changing the -// imageParts struct names to be exported as well. -func GetImageBaseName(input string) (string, error) { - decomposedImage, err := decompose(input) - if err != nil { - return "", err - } - splitImageName := strings.Split(decomposedImage.unnormalizedRef.Name(), "/") - return splitImageName[len(splitImageName)-1], nil -} - -// decompose breaks an input name into an imageParts description -func decompose(input string) (imageParts, error) { - imgRef, err := reference.Parse(input) - if err != nil { - return imageParts{}, err - } - unnormalizedNamed := imgRef.(reference.Named) - // ip.unnormalizedRef, because it uses reference.Parse and not reference.ParseNormalizedNamed, - // does not use the standard heuristics for domains vs. namespaces/repos, so we need to check - // explicitly. - hasRegistry := isRegistry(reference.Domain(unnormalizedNamed)) - return imageParts{ - unnormalizedRef: unnormalizedNamed, - hasRegistry: hasRegistry, - }, nil -} - -// suspiciousRefNameTagValuesForSearch returns a "tag" value used in a previous implementation. -// This exists only to preserve existing behavior in heuristic code; it’s dubious that that behavior is correct, -// especially for the tag value. -func (ip *imageParts) suspiciousRefNameTagValuesForSearch() (string, string, string) { - registry := reference.Domain(ip.unnormalizedRef) - imageName := reference.Path(ip.unnormalizedRef) - // ip.unnormalizedRef, because it uses reference.Parse and not reference.ParseNormalizedNamed, - // does not use the standard heuristics for domains vs. namespaces/repos. - if registry != "" && !isRegistry(registry) { - imageName = registry + "/" + imageName - registry = "" - } - - var tag string - if tagged, isTagged := ip.unnormalizedRef.(reference.NamedTagged); isTagged { - tag = tagged.Tag() - } else if _, hasDigest := ip.unnormalizedRef.(reference.Digested); hasDigest { - tag = "none" - } else { - tag = LatestTag - } - return registry, imageName, tag -} - -// referenceWithRegistry returns a (normalized) reference.Named composed of ip (with !ip.hasRegistry) -// qualified with registry. -func (ip *imageParts) referenceWithRegistry(registry string) (reference.Named, error) { - if ip.hasRegistry { - return nil, errors.Errorf("internal error: referenceWithRegistry called on imageParts with a registry (%#v)", *ip) - } - // We could build a reference.WithName+WithTag/WithDigest here, but we need to round-trip via a string - // and a ParseNormalizedNamed anyway to get the right normalization of docker.io/library, so - // just use a string directly. - qualified := registry + "/" + ip.unnormalizedRef.String() - ref, err := reference.ParseNormalizedNamed(qualified) - if err != nil { - return nil, errors.Wrapf(err, "error normalizing registry+unqualified reference %#v", qualified) - } - return ref, nil -} - -// normalizedReference returns a (normalized) reference for ip (with ip.hasRegistry) -func (ip *imageParts) normalizedReference() (reference.Named, error) { - if !ip.hasRegistry { - return nil, errors.Errorf("internal error: normalizedReference called on imageParts without a registry (%#v)", *ip) - } - // We need to round-trip via a string to get the right normalization of docker.io/library - s := ip.unnormalizedRef.String() - ref, err := reference.ParseNormalizedNamed(s) - if err != nil { // Should never happen - return nil, errors.Wrapf(err, "error normalizing qualified reference %#v", s) - } - return ref, nil -} |