Bug 809806 - Make createprecomplete.py more importable. r=ted

config/createprecomplete.py

@@ -41,12 +41,11 @@ def get_build_entries(root_path):
 
     return rel_file_path_list, rel_dir_path_list
 
-def generate_precomplete():
+def generate_precomplete(root_path):
     """ Creates the precomplete file containing the remove and rmdir
-        application update instructions. The current working directory is used
+        application update instructions. The given directory is used
         for the location to enumerate and to create the precomplete file.
     """
-    root_path = os.getcwd()
     # If inside a Mac bundle use the root of the bundle for the path.
     if os.path.basename(root_path) == "MacOS":
         root_path = os.path.abspath(os.path.join(root_path, '../../'))
@@ -64,4 +63,4 @@ def generate_precomplete():
     precomplete_file.close()
 
 if __name__ == "__main__":
-    generate_precomplete()
+    generate_precomplete(os.getcwd())