util

func CompareSHA1 ¶

func CompareSHA1(a, b []byte) bool

func CompileRegex ¶

func CompileRegex(v string, lineMatch bool) (*regexp.Regexp, error)

func ComputeSHA1 ¶

func ComputeSHA1(file string) ([]byte, error)

func DecodeJSONAuth ¶

func DecodeJSONAuth(authBase64 string) string

func HasDigest ¶

func HasDigest(tag string) bool

HasDigest returns true if tag HAS or IS a digest

func HasName ¶

func HasName(tag string) bool

HasName returns true if tag HAS or IS a name

func IsDigest ¶

func IsDigest(d string) bool

IsDigest returns true if d is a digest string. For performance reasons, this currently only checks for the presence of the `sha256:` prefix, and does not run a regex against d for full compliance check. This way, incorrect digests lead to errors, but correct digests do not incur a computational overhead.

func JoinRefAndTag ¶

func JoinRefAndTag(ref, tag string) string

JoinRefAndTag joins ref with tag, inserting the correct separator ':' or '@', depending on whether tag contains a name part or is purely a digest.

func JoinRefsAndTag ¶

func JoinRefsAndTag(srcRef, trgtRef, tag string) (src, trgt string)

JoinRefsAndTag joins the source and target ref for a sync action each with tag, according to these rules:

• If tag contains a digest, srcRef is joined with only the digest as tag, and trgtRef with either only the name part of tag (if present), or the digest.

- Otherwise, srcRef and trgtRef are joined with tag.

This ensures that if a digest is present, we always use that when pulling an image, but still use the name if present when pushing.

func JoinTag ¶

func JoinTag(name, digest string) string

func SplitPlatform ¶

func SplitPlatform(p string) (os, arch, variant string)

func SplitRef ¶

func SplitRef(ref string) (reg, repo, tag string)

func SplitTag ¶

func SplitTag(tag string) (name, digest string)