1 files changed, 7 insertions, 6 deletions
diff --git a/pre_commit_hooks/check_shebang_scripts_are_executable.py b/pre_commit_hooks/check_shebang_scripts_are_executable.py
index 50bc9c0..621696c 100644
--- a/pre_commit_hooks/check_shebang_scripts_are_executable.py
+++ b/pre_commit_hooks/check_shebang_scripts_are_executable.py
@@ -1,18 +1,17 @@
 """Check that text files with a shebang are executable."""
+from __future__ import annotations
+
 import argparse
 import shlex
 import sys
-from typing import List
-from typing import Optional
 from typing import Sequence
-from typing import Set
 
 from pre_commit_hooks.check_executables_have_shebangs import EXECUTABLE_VALUES
 from pre_commit_hooks.check_executables_have_shebangs import git_ls_files
 from pre_commit_hooks.check_executables_have_shebangs import has_shebang
 
 
-def check_shebangs(paths: List[str]) -> int:
+def check_shebangs(paths: list[str]) -> int:
     # Cannot optimize on non-executability here if we intend this check to
     # work on win32 -- and that's where problems caused by non-executability
     # (elsewhere) are most likely to arise from.
@@ -20,7 +19,7 @@ def check_shebangs(paths: List[str]) -> int:
 
 
 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 not is_executable and has_shebang(ls_file.filename):
@@ -35,13 +34,15 @@ def _message(path: str) -> None:
         f'{path}: has a shebang but is not marked executable!\n'
         f'  If it is supposed to be executable, try: '
         f'`chmod +x {shlex.quote(path)}`\n'
+        f'  If on Windows, you may also need to: '
+        f'`git add --chmod=+x {shlex.quote(path)}`\n'
         f'  If it not supposed to be executable, double-check its shebang '
         f'is wanted.\n',
         file=sys.stderr,
     )
 
 
-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)