Merge pull request #3726 from pre-commit/exists-faster

asottile · web-flow · commit 1558d06e3d9e · 2026-07-21T16:36:51.000-04:00
faster check of rev existing locally as a commit
diff --git a/pre_commit/commands/hook_impl.py b/pre_commit/commands/hook_impl.py
@@ -114,7 +114,7 @@ def _ns(
 
 
 def _rev_exists(rev: str) -> bool:
-    return not subprocess.call(('git', 'rev-list', '--quiet', rev))
+    return not subprocess.call(('git', 'cat-file', '-e', f'{rev}^{{commit}}'))
 
 
 def _pre_push_ns(
