Add resources.Match and resources.GetMatch

Fix #6190

tpl/resources/resources.go

@@ -68,7 +68,7 @@ type Namespace struct {
 	templatesClient *templates.Client
 }
 
-// Get locates the filename given in Hugo's filesystems: static, assets and content (in that order)
+// Get locates the filename given in Hugo's assets filesystem
 // and creates a Resource object that can be used for further transformations.
 func (ns *Namespace) Get(filename interface{}) (resource.Resource, error) {
 	filenamestr, err := cast.ToStringE(filename)
@@ -78,12 +78,50 @@ func (ns *Namespace) Get(filename interface{}) (resource.Resource, error) {
 
 	filenamestr = filepath.Clean(filenamestr)
 
-	// Resource Get'ing is currently limited to /assets to make it simpler
-	// to control the behaviour of publishing and partial rebuilding.
-	return ns.createClient.Get(ns.deps.BaseFs.Assets.Fs, filenamestr)
+	return ns.createClient.Get(filenamestr)
 
 }
 
+// GetMatch finds the first Resource matching the given pattern, or nil if none found.
+//
+// It looks for files in the assets file system.
+//
+// See Match for a more complete explanation about the rules used.
+func (ns *Namespace) GetMatch(pattern interface{}) (resource.Resource, error) {
+	patternStr, err := cast.ToStringE(pattern)
+	if err != nil {
+		return nil, err
+	}
+
+	return ns.createClient.GetMatch(patternStr)
+
+}
+
+// Match gets all resources matching the given base path prefix, e.g
+// "*.png" will match all png files. The "*" does not match path delimiters (/),
+// so if you organize your resources in sub-folders, you need to be explicit about it, e.g.:
+// "images/*.png". To match any PNG image anywhere in the bundle you can do "**.png", and
+// to match all PNG images below the images folder, use "images/**.jpg".
+//
+// The matching is case insensitive.
+//
+// Match matches by using the files name with path relative to the file system root
+// with Unix style slashes (/) and no leading slash, e.g. "images/logo.png".
+//
+// See https://github.com/gobwas/glob for the full rules set.
+//
+// It looks for files in the assets file system.
+//
+// See Match for a more complete explanation about the rules used.
+func (ns *Namespace) Match(pattern interface{}) (resource.Resources, error) {
+	patternStr, err := cast.ToStringE(pattern)
+	if err != nil {
+		return nil, err
+	}
+
+	return ns.createClient.Match(patternStr)
+}
+
 // Concat concatenates a slice of Resource objects. These resources must
 // (currently) be of the same Media Type.
 func (ns *Namespace) Concat(targetPathIn interface{}, r interface{}) (resource.Resource, error) {