| #!/usr/bin/env python |
| # |
| # Copyright 2019 The Cobalt Authors. All Rights Reserved. |
| # |
| # 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. |
| |
| |
| """This file is designed to be placed in the cobalt archive to finalize the |
| decompression process.""" |
| |
| import json |
| import logging |
| import os |
| import subprocess |
| import sys |
| |
| |
| _SELF_DIR = os.path.dirname(__file__) |
| _ARCHIVE_ROOT = os.path.join(_SELF_DIR, os.pardir, os.pardir) |
| _DATA_JSON_PATH = os.path.abspath(os.path.join(_SELF_DIR, 'decompress.json')) |
| |
| |
| def _DefineOsSymlinkForWin32(): |
| """When invoked, this will define the missing os.symlink for Win32.""" |
| def _CreateWin32Symlink(source, link_name): |
| cmd = 'mklink /J %s %s' % (link_name, source) |
| rc = subprocess.call(cmd, shell=True) |
| if rc != 0: |
| logging.critical('Error using %s during %s, cwd=%s' % (rc,cmd,os.getcwd())) |
| os.symlink = _CreateWin32Symlink |
| |
| |
| if sys.platform == 'win32': |
| _DefineOsSymlinkForWin32() |
| |
| |
| def _ExtractSymlinks(cwd, symlink_dir_list): |
| if not symlink_dir_list: |
| logging.info('No directory symlinks found.') |
| return |
| prev_cwd = os.getcwd() |
| cwd = os.path.normpath(cwd) |
| all_ok = True |
| try: |
| os.chdir(cwd) |
| for link_path, real_path in symlink_dir_list: |
| link_path = os.path.abspath(link_path) |
| real_path = os.path.abspath(real_path) |
| if not os.path.exists(real_path): |
| os.makedirs(real_path) |
| if not os.path.exists(os.path.dirname(link_path)): |
| os.makedirs(os.path.dirname(link_path)) |
| assert(os.path.exists(real_path)) |
| real_path = os.path.relpath(real_path) |
| os.symlink(real_path, link_path) |
| if not os.path.exists(real_path): |
| logging.critical('Error target folder %s does not exist.' |
| % os.path.abspath(real_path)) |
| all_ok = False |
| if not os.path.exists(link_path): |
| logging.critical('Error link folder %s does not exist.' |
| % os.path.abspath(link_path)) |
| all_ok = False |
| finally: |
| os.chdir(prev_cwd) |
| if not all_ok: |
| logging.critical('\n*******************************************' |
| '\nErrors happended during symlink extraction.' |
| '\n*******************************************') |
| |
| |
| def _main(): |
| logging.basicConfig(level=logging.INFO, |
| format='%(filename)s(%(lineno)s): %(message)s') |
| assert(os.path.exists(_DATA_JSON_PATH)), _DATA_JSON_PATH |
| with open(_DATA_JSON_PATH) as fd: |
| json_str = fd.read() |
| data = json.loads(json_str) |
| _ExtractSymlinks(_ARCHIVE_ROOT, data.get('symlink_dir', [])) |
| |
| |
| if __name__ == '__main__': |
| _main() |