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# Copyright 2016 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.
import os
import shutil
import sys
# Ensures that the current version matches the last-produced version, which is
# stored in the version_file. If it does not, then the framework_root_dir is
# obliterated.
# Usage: python prepare_framework_version.py out/obj/version_file \
# out/Framework.framework \
# 'A'
def PrepareFrameworkVersion(version_file, framework_root_dir, version):
# Test what the current framework version is. Stop if it is up-to-date.
try:
with open(version_file, 'r') as f:
current_version = f.read()
if current_version == version:
return
except IOError:
pass
# The framework version has changed, so clobber the framework.
if os.path.exists(framework_root_dir):
shutil.rmtree(framework_root_dir)
# Write out the new framework version file, making sure its containing
# directory exists.
dirname = os.path.dirname(version_file)
if not os.path.isdir(dirname):
os.makedirs(dirname, 0o700)
with open(version_file, 'w+') as f:
f.write(version)
if __name__ == '__main__':
PrepareFrameworkVersion(sys.argv[1], sys.argv[2], sys.argv[3])
sys.exit(0)
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