gecko-dev/tools/lint/hooks_clang_format.py

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2.9 KiB
Python
Executable File

#!/usr/bin/env python3
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
import os
import subprocess
from subprocess import check_output, CalledProcessError
import sys
here = os.path.dirname(os.path.realpath(__file__))
topsrcdir = os.path.join(here, os.pardir, os.pardir)
EXTRA_PATHS = (
"python/mozversioncontrol",
"python/mozbuild",
"testing/mozbase/mozfile",
)
sys.path[:0] = [os.path.join(topsrcdir, p) for p in EXTRA_PATHS]
from mozversioncontrol import get_repository_object, InvalidRepoPath
def run_clang_format(hooktype, changedFiles):
try:
vcs = get_repository_object(topsrcdir)
except InvalidRepoPath:
return
if not changedFiles:
# No files have been touched
return
# We have also a copy of this list in:
# python/mozbuild/mozbuild/mach_commands.py
# version-control-tools/hgext/clang-format/__init__.py
# release-services/src/staticanalysis/bot/static_analysis_bot/config.py
# Too heavy to import the full class just for this variable
extensions = (".cpp", ".c", ".cc", ".h", ".m", ".mm")
path_list = []
for filename in sorted(changedFiles):
# Ignore files unsupported in clang-format
if filename.decode().endswith(extensions):
path_list.append(filename)
if not path_list:
# No files have been touched
return
arguments = ["clang-format", "-p"] + path_list
# On windows we need this to call the command in a shell, see Bug 1511594
if os.name == "nt":
clang_format_cmd = ["sh", "mach"] + arguments
else:
clang_format_cmd = [os.path.join(topsrcdir, "mach")] + arguments
if "commit" in hooktype:
# don't prevent commits, just display the clang-format results
subprocess.call(clang_format_cmd)
vcs.add_remove_files(*path_list)
return False
print("warning: '{}' is not a valid clang-format hooktype".format(hooktype))
return False
def hg(ui, repo, node, **kwargs):
print(
"warning: this hook has been deprecated. Please use the hg extension instead.\n"
"please add 'clang-format = ~/.mozbuild/version-control-tools/hgext/clang-format'"
" to hgrc\n"
"Or run 'mach bootstrap'"
)
return False
def git():
hooktype = os.path.basename(__file__)
if hooktype == "hooks_clang_format.py":
hooktype = "pre-push"
try:
changedFiles = check_output(
["git", "diff", "--staged", "--diff-filter=d", "--name-only", "HEAD"]
).split()
# TODO we should detect if we are in a "add -p" mode and show a warning
return run_clang_format(hooktype, changedFiles)
except CalledProcessError:
print("Command to retrieve local files failed")
return 1
if __name__ == "__main__":
sys.exit(git())