Move reference to pkg/reference

Signed-off-by: Derek McGowan <derek@mcg.dev>

pkg/reference/docker/helpers_deprecated.go

@@ -0,0 +1,50 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package docker
+
+import "github.com/distribution/reference"
+
+// IsNameOnly returns true if reference only contains a repo name.
+//
+// Deprecated: use [reference.IsNameOnly].
+func IsNameOnly(ref reference.Named) bool {
+	return reference.IsNameOnly(ref)
+}
+
+// FamiliarName returns the familiar name string
+// for the given named, familiarizing if needed.
+//
+// Deprecated: use [reference.FamiliarName].
+func FamiliarName(ref reference.Named) string {
+	return reference.FamiliarName(ref)
+}
+
+// FamiliarString returns the familiar string representation
+// for the given reference, familiarizing if needed.
+//
+// Deprecated: use [reference.FamiliarString].
+func FamiliarString(ref reference.Reference) string {
+	return reference.FamiliarString(ref)
+}
+
+// FamiliarMatch reports whether ref matches the specified pattern.
+// See [path.Match] for supported patterns.
+//
+// Deprecated: use [reference.FamiliarMatch].
+func FamiliarMatch(pattern string, ref reference.Reference) (bool, error) {
+	return reference.FamiliarMatch(pattern, ref)
+}