1 files changed, 52 insertions, 0 deletions
diff --git a/gdb/contrib/check-whitespace-pre-commit.py b/gdb/contrib/check-whitespace-pre-commit.py
new file mode 100755
index 0000000..9d82f77
--- /dev/null
+++ b/gdb/contrib/check-whitespace-pre-commit.py
@@ -0,0 +1,52 @@
+#! /usr/bin/env python3
+
+# Copyright (C) 2025 Free Software Foundation, Inc.
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import re
+import subprocess
+import sys
+
+re_clean = re.compile(
+    "(^(gdb/testsuite/|gdbsupport/|gdbserver/)|[.](m4|ac|def|[chly])$|NEWS)"
+)
+re_clean_exclude = re.compile("^(gdb/symfile.c|gdb/cli/cli-cmds.c)$")
+
+clean = []
+other = []
+for f in sys.argv[1:]:
+    m = re_clean.search(f)
+    if m and re_clean_exclude.search(f):
+        m = None
+    if m:
+        clean.append(f)
+    else:
+        other.append(f)
+
+if other:
+    cmd = ["git", "--no-pager", "diff", "--staged", "--check"] + other
+    res = subprocess.run(cmd)
+    if res.returncode != 0:
+        sys.exit(res.returncode)
+
+if clean:
+    cmd = ["git", "hash-object", "-t", "tree", "/dev/null"]
+    res = subprocess.run(cmd, capture_output=True, text=True)
+    if res.returncode != 0:
+        sys.exit(res.returncode)
+    null_tree = res.stdout.rstrip("\n")
+
+    cmd = ["git", "diff-index", "--cached", "--check", null_tree] + clean
+    res = subprocess.run(cmd)
+    sys.exit(res.returncode)