Merge pull request #2039 from vdemeester/add-match-support-to-reference

Add a new Match method to the reference package

reference/reference.go

@@ -24,6 +24,7 @@ package reference
 import (
 	"errors"
 	"fmt"
+	"path"
 	"strings"
 
 	"github.com/docker/distribution/digest"
@@ -250,6 +251,16 @@ func WithDigest(name Named, digest digest.Digest) (Canonical, error) {
 	}, nil
 }
 
+// Match reports whether ref matches the specified pattern.
+// See https://godoc.org/path#Match for supported patterns.
+func Match(pattern string, ref Reference) (bool, error) {
+	matched, err := path.Match(pattern, ref.String())
+	if namedRef, isNamed := ref.(Named); isNamed && !matched {
+		matched, _ = path.Match(pattern, namedRef.Name())
+	}
+	return matched, err
+}
+
 func getBestReferenceType(ref reference) Reference {
 	if ref.name == "" {
 		// Allow digest only references