Merge pull request #328 from asottile/correct-pre-commit-config

use the correct pre-commit config

babi/linters/pre_commit.py

@@ -63,10 +63,16 @@ def command(self, filename: str, scope: str) -> tuple[str, ...] | None:
             return None  # not in a git repo!
 
         # no pre-commit config!
-        if not os.path.exists(os.path.join(root, '.pre-commit-config.yaml')):
+        cfg = os.path.join(root, '.pre-commit-config.yaml')
+        if not os.path.exists(cfg):
             return None
 
-        return ('pre-commit', 'run', '--color=never', '--files', filename)
+        return (
+            'pre-commit', 'run',
+            '--color=never',
+            '--config', cfg,
+            '--files', filename,
+        )
 
     def parse(self, filename: str, output: str) -> tuple[linting.Error, ...]:
         root = self._root(filename)

tests/linters/pre_commit_test.py

@@ -96,10 +96,16 @@ def test_command_returns_none_no_pre_commit_config(tmpdir_git):
 
 
 def test_command_returns_when_config_exists(tmpdir_git):
-    tmpdir_git.join('.pre-commit-config.yaml').write('{}\n')
+    cfg = tmpdir_git.join('.pre-commit-config.yaml')
+    cfg.write('{}\n')
     path = str(tmpdir_git.join('t.py'))
     ret = PreCommit().command(path, 'source.python')
-    assert ret == ('pre-commit', 'run', '--color=never', '--files', path)
+    assert ret == (
+        'pre-commit', 'run',
+        '--color=never',
+        '--config', str(cfg),
+        '--files', path,
+    )
 
 
 def test_filters_file_paths_to_actual_file(tmpdir_git):