libsaria: Added function for listing the library

This makes it easier for the gui to know what is in the library.

libsaria/sources/library/__init__.py

@@ -8,6 +8,7 @@ import index
 
 # Function pointers for conveniance
 add_path    = library.add_path
+list_paths  = library.list_paths
 get_attrs   = library.get_attrs
 all_attrs   = library.all_attrs
 list_ids    = tree.list_ids

libsaria/sources/library/library.py

@@ -39,6 +39,14 @@ def add_path(path):
 	lib_dict.setdefault(path, dict())
 	unlock_library()
 
+def list_paths():
+	res = []
+	lock_library()
+	for path, lib in lib_dict.iteritems():
+		res.append((path, lib))
+	unlock_library()
+	return res
+
 def find_id(id):
 	for src, tracks in lib_dict.iteritems():
 		track = tracks.get(id, None)