1 files changed, 9 insertions, 7 deletions
diff --git a/pre_commit_hooks/check_executables_have_shebangs.py b/pre_commit_hooks/check_executables_have_shebangs.py
index 34af5ca..d8e4f49 100644
--- a/pre_commit_hooks/check_executables_have_shebangs.py
+++ b/pre_commit_hooks/check_executables_have_shebangs.py
@@ -1,13 +1,12 @@
 """Check that executable text files have a shebang."""
+from __future__ import annotations
+
 import argparse
 import shlex
 import sys
 from typing import Generator
-from typing import List
 from typing import NamedTuple
-from typing import Optional
 from typing import Sequence
-from typing import Set
 
 from pre_commit_hooks.util import cmd_output
 from pre_commit_hooks.util import zsplit
@@ -15,8 +14,11 @@ from pre_commit_hooks.util import zsplit
 EXECUTABLE_VALUES = frozenset(('1', '3', '5', '7'))
 
 
-def check_executables(paths: List[str]) -> int:
-    if sys.platform == 'win32':  # pragma: win32 cover
+def check_executables(paths: list[str]) -> int:
+    fs_tracks_executable_bit = cmd_output(
+        'git', 'config', 'core.fileMode', retcode=None,
+    ).strip()
+    if fs_tracks_executable_bit == 'false':  # pragma: win32 cover
         return _check_git_filemode(paths)
     else:  # pragma: win32 no cover
         retv = 0
@@ -42,7 +44,7 @@ def git_ls_files(paths: Sequence[str]) -> Generator[GitLsFile, None, None]:
 
 
 def _check_git_filemode(paths: Sequence[str]) -> int:
-    seen: Set[str] = set()
+    seen: set[str] = set()
     for ls_file in git_ls_files(paths):
         is_executable = any(b in EXECUTABLE_VALUES for b in ls_file.mode[-3:])
         if is_executable and not has_shebang(ls_file.filename):
@@ -71,7 +73,7 @@ def _message(path: str) -> None:
     )
 
 
-def main(argv: Optional[Sequence[str]] = None) -> int:
+def main(argv: Sequence[str] | None = None) -> int:
     parser = argparse.ArgumentParser(description=__doc__)
     parser.add_argument('filenames', nargs='*')
     args = parser.parse_args(argv)