refactor: put StripTagMeta into formatter package

Avoid circular import.

pkg/recipe/recipe.go

@@ -166,7 +166,7 @@ func (r Recipe) UpdateLabel(pattern, serviceName, label string) error {
 func (r Recipe) UpdateTag(image, tag string) (bool, error) {
 	pattern := fmt.Sprintf("%s/%s/compose**yml", config.RECIPES_DIR, r.Name)
 
-	image = StripTagMeta(image)
+	image = formatter.StripTagMeta(image)
 
 	ok, err := compose.UpdateTag(pattern, image, tag, r.Name)
 	if err != nil {
@@ -983,7 +983,7 @@ func GetRecipeVersions(recipeName, registryUsername, registryPassword string) (R
 
 			path := reference.Path(img)
 
-			path = StripTagMeta(path)
+			path = formatter.StripTagMeta(path)
 
 			var tag string
 			switch img.(type) {
@@ -1050,25 +1050,6 @@ func GetRecipeCatalogueVersions(recipeName string, catl RecipeCatalogue) ([]stri
 	return versions, nil
 }
 
-// StripTagMeta strips front-matter image tag data that we don't need for parsing.
-func StripTagMeta(image string) string {
-	originalImage := image
-
-	if strings.Contains(image, "docker.io") {
-		image = strings.Split(image, "/")[1]
-	}
-
-	if strings.Contains(image, "library") {
-		image = strings.Split(image, "/")[1]
-	}
-
-	if originalImage != image {
-		logrus.Debugf("stripped %s to %s for parsing", originalImage, image)
-	}
-
-	return image
-}
-
 // EnsureCatalogue ensures that the catalogue is cloned locally & present.
 func EnsureCatalogue() error {
 	catalogueDir := path.Join(config.ABRA_DIR, "catalogue")