Add ability to skip hooks by branches

pre_commit/clientlib.py

@@ -110,6 +110,8 @@ MANIFEST_HOOK_DICT = cfgv.Map(
 
     cfgv.Optional('files', check_string_regex, ''),
     cfgv.Optional('exclude', check_string_regex, '^$'),
+    cfgv.Optional('branches', check_string_regex, ''),
+    cfgv.Optional('exclude_branches', check_string_regex, '^$'),
     cfgv.Optional('types', cfgv.check_array(check_type_tag), ['file']),
     cfgv.Optional('types_or', cfgv.check_array(check_type_tag), []),
     cfgv.Optional('exclude_types', cfgv.check_array(check_type_tag), []),

pre_commit/commands/run.py

@@ -26,6 +26,7 @@ from pre_commit.repository import all_hooks
 from pre_commit.repository import install_hook_envs
 from pre_commit.staged_files_only import staged_files_only
 from pre_commit.store import Store
+from pre_commit.util import cmd_output
 from pre_commit.util import cmd_output_b
 
 
@@ -131,6 +132,28 @@ def _get_skips(environ: MutableMapping[str, str]) -> set[str]:
     return {skip.strip() for skip in skips.split(',') if skip.strip()}
 
 
+def _get_branch_name() -> str:
+    _, name, _ = cmd_output('git', 'branch', '--show-current')
+    return name
+
+
+def _get_branch_skips(config: dict[str, Any], store: Store) -> set[str]:
+    current_branch = _get_branch_name()
+    to_skip = set()
+
+    for hook in all_hooks(config, store):
+        include_re = re.compile(hook.branches)
+        exclude_re = re.compile(hook.exclude_branches)
+
+        if (
+                not include_re.search(current_branch) or
+                exclude_re.search(current_branch)
+        ):
+            to_skip.add(hook.name)
+
+    return to_skip
+
+
 SKIPPED = 'Skipped'
 NO_FILES = '(no files to check)'
 
@@ -433,7 +456,7 @@ def run(
             )
             return 1
 
-        skips = _get_skips(environ)
+        skips = _get_skips(environ) | _get_branch_skips(config, store)
         to_install = [
             hook
             for hook in hooks

pre_commit/hook.py

@@ -35,6 +35,8 @@ class Hook(NamedTuple):
     require_serial: bool
     stages: Sequence[str]
     verbose: bool
+    branches: str
+    exclude_branches: str
 
     @property
     def install_key(self) -> tuple[Prefix, str, str, tuple[str, ...]]:

tests/repository_test.py

@@ -475,6 +475,8 @@ def test_manifest_hooks(tempdir_factory, store):
         entry='bin/hook.sh',
         exclude='^$',
         exclude_types=[],
+        branches='',
+        exclude_branches='^$',
         files='',
         id='bash_hook',
         language='script',