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#!/usr/bin/env python3
# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Redirects to the version of google-java-format checked into the Chrome tree.
google-java-format executable is pulled down from the cipd storage whenever
you sync Chrome. This script finds and runs the executable.
"""
import gclient_paths
import os
import subprocess
import sys
def FindGoogleJavaFormat():
"""Returns the path to the google-java-format executable."""
# Allow non-chromium projects to use a custom location.
primary_solution_path = gclient_paths.GetPrimarySolutionPath()
if primary_solution_path:
override = os.environ.get('GOOGLE_JAVA_FORMAT_PATH')
if override:
# Make relative to solution root if not an absolute path.
return os.path.join(primary_solution_path, override)
bin_path = os.path.join(primary_solution_path, 'third_party',
'google-java-format', 'google-java-format')
cipd_path = os.path.join(primary_solution_path, 'third_party',
'google-java-format', 'cipd',
'google-java-format.jar')
# Check that the .jar exists, since it is conditionally downloaded via
# DEPS conditions.
# TODO(b/345761161): Remove old os.path.exists(path + '.jar') check,
# when third_party/google-java-format
# -> third_party/google-java-format/cipd is fully rolled out.
if os.path.exists(bin_path) and (os.path.exists(bin_path + '.jar')
or os.path.exists(cipd_path)):
return bin_path
return None
def main(args):
google_java_format = FindGoogleJavaFormat()
if google_java_format is None:
# Fail silently. It could be we are on an old chromium revision,
# or that it is a non-chromium project. https://crbug.com/1491627.
print('google-java-format not found, skipping java formatting.')
return 0
# Add some visibility to --help showing where the tool lives, since this
# redirection can be a little opaque.
help_syntax = ('-h', '--help', '-help', '-help-list', '--help-list')
if any(match in args for match in help_syntax):
print('\nDepot tools redirects you to the google-java-format at:\n' +
' %s\n' % google_java_format)
return subprocess.call([google_java_format] + args)
if __name__ == '__main__':
try:
sys.exit(main(sys.argv[1:]))
except KeyboardInterrupt:
sys.stderr.write('interrupted\n')
sys.exit(1)
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