Add lint target for clang-format

1 files changed, 59 insertions, 0 deletions

diff --git a/lint/run_clang_format.py b/lint/run_clang_format.py
new file mode 100755
index 00000000..b33f0c1f
--- /dev/null
+++ b/lint/run_clang_format.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+# Copyright 2025 Huawei Cloud Computing Technology Co., Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import json
+import os
+import shutil
+import subprocess
+import sys
+
+
+def dump_meta(src, cmd):
+    OUT = os.environ.get("OUT")
+    if OUT:
+        with open(os.path.join(OUT, "config.json"), "w") as f:
+            json.dump({"src": src, "cmd": cmd}, f)
+
+
+def run_lint(src, cmd):
+    dump_meta(src, cmd)
+    config = os.environ.get("CONFIG")
+    out = os.environ.get("OUT")
+    shutil.copyfile(os.path.join(config, ".clang-format"), ".clang-format")
+    extra = []
+    if src.endswith(".tpp"):
+        extra = ["-x", "c++"]
+    db = [{
+        "directory": os.getcwd(),
+        "arguments": cmd[:1] + extra + cmd[1:],
+        "file": src
+    }]
+    with open("compile_commands.json", "w") as f:
+        json.dump(db, f)
+    new_cmd = [
+        os.path.join(config, "toolchain", "bin", "clang-format"),
+        "-style=file",
+        src,
+    ]
+    formatted = os.path.join(out, "formatted")
+    with open(formatted, "w") as f:
+        res = subprocess.run(new_cmd, stdout=f).returncode
+        if res != 0:
+            return res
+    return subprocess.run(["diff", "-u", src, formatted]).returncode
+
+
+if __name__ == "__main__":
+    sys.exit(run_lint(sys.argv[1], sys.argv[2:]))