#611: Allow to configure alias automatically by calling fuck twice

thefuck/utils.py

@@ -178,6 +178,21 @@ def for_app(*app_names, **kwargs):
     return decorator(_for_app)
 
 
+def get_cache_dir():
+    default_xdg_cache_dir = os.path.expanduser("~/.cache")
+    cache_dir = os.getenv("XDG_CACHE_HOME", default_xdg_cache_dir)
+
+    # Ensure the cache_path exists, Python 2 does not have the exist_ok
+    # parameter
+    try:
+        os.makedirs(cache_dir)
+    except OSError:
+        if not os.path.isdir(cache_dir):
+            raise
+
+    return cache_dir
+
+
 def cache(*depends_on):
     """Caches function result in temporary file.
 
@@ -194,21 +209,6 @@ def cache(*depends_on):
         except OSError:
             return '0'
 
-    def _get_cache_path():
-        default_xdg_cache_dir = os.path.expanduser("~/.cache")
-        cache_dir = os.getenv("XDG_CACHE_HOME", default_xdg_cache_dir)
-        cache_path = Path(cache_dir).joinpath('thefuck').as_posix()
-
-        # Ensure the cache_path exists, Python 2 does not have the exist_ok
-        # parameter
-        try:
-            os.makedirs(cache_dir)
-        except OSError:
-            if not os.path.isdir(cache_dir):
-                raise
-
-        return cache_path
-
     @decorator
     def _cache(fn, *args, **kwargs):
         if cache.disabled:
@@ -219,7 +219,8 @@ def cache(*depends_on):
         key = '{}.{}'.format(fn.__module__, repr(fn).split('at')[0])
 
         etag = '.'.join(_get_mtime(name) for name in depends_on)
-        cache_path = _get_cache_path()
+        cache_dir = get_cache_dir()
+        cache_path = Path(cache_dir).joinpath('thefuck').as_posix()
 
         try:
             with closing(shelve.open(cache_path)) as db: