libsaria: Load saved library on startup

I want to load the library and create a tree representing the entire
library on startup.

libsaria/sources/library/__init__.py

@@ -9,6 +9,9 @@ add_path  = library.add_path
 get_attrs = library.get_attrs
 list_ids  = tree.list_ids
 
+library.load()
+tree.make_tree()
+
 def update_lib():
 	update.update()
 	tree.make_tree()

libsaria/sources/library/library.py

@@ -8,11 +8,21 @@ lock_library   = library_lock.acquire
 unlock_library = library_lock.release
 
 # Map directory -> dict()
-lib_dict = dict()
+lib_dict = None
+LIB_FILE = "library"
+
+def load():
+	global lib_dict
+	saved_lib = storage.load_obj(LIB_FILE, dict)
+	if saved_lib.__class__ != dict:
+		saved_lib = dict()
+	lock_library()
+	lib_dict = saved_lib
+	unlock_library()
 
 # NOTE: You should already be holding the lock when you call this
 def save():
-	storage.save_obj("library", lib_dict)
+	storage.save_obj(LIB_FILE, lib_dict)
 
 def add_path(path):
 	lock_library()