clean: separate store from runner

pre_commit/commands/clean.py

@@ -7,9 +7,9 @@ from pre_commit import output
 from pre_commit.util import rmtree
 
 
-def clean(runner):
+def clean(store):
     legacy_path = os.path.expanduser('~/.pre-commit')
-    for directory in (runner.store.directory, legacy_path):
+    for directory in (store.directory, legacy_path):
         if os.path.exists(directory):
             rmtree(directory)
             output.write_line('Cleaned {}.'.format(directory))

pre_commit/main.py

@@ -243,7 +243,7 @@ def main(argv=None):
         elif args.command == 'uninstall':
             return uninstall(runner, hook_type=args.hook_type)
         elif args.command == 'clean':
-            return clean(runner)
+            return clean(runner.store)
         elif args.command == 'autoupdate':
             if args.tags_only:
                 logger.warning('--tags-only is the default')