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gsutil.py
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gsutil.py
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#!/usr/bin/env python
# coding=utf8
# Copyright 2010 Google Inc. 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.
"""Wrapper module for running gslib.__main__.main() from the command line."""
import os
import sys
import warnings
if not (2, 6) <= sys.version_info[:3] < (3,):
sys.exit('gsutil requires python 2.6 or 2.7.')
def UsingCrcmodExtension(crcmod):
return (getattr(crcmod, 'crcmod', None) and
getattr(crcmod.crcmod, '_usingExtension', None))
def _OutputAndExit(message):
sys.stderr.write('%s\n' % message)
sys.exit(1)
GSUTIL_DIR = os.path.dirname(os.path.abspath(os.path.realpath(__file__)))
if not GSUTIL_DIR:
_OutputAndExit('Unable to determine where gsutil is installed. Sorry, '
'cannot run correctly without this.\n')
# The wrapper script adds all third_party libraries to the Python path, since
# we don't assume any third party libraries are installed system-wide.
THIRD_PARTY_DIR = os.path.join(GSUTIL_DIR, 'third_party')
# Filter out "module was already imported" warnings that get printed after we
# add our bundled version of modules to the Python path.
warnings.filterwarnings('ignore', category=UserWarning,
message=r'.* httplib2 was already imported from')
warnings.filterwarnings('ignore', category=UserWarning,
message=r'.* oauth2client was already imported from')
# List of third-party libraries. The first element of the tuple is the name of
# the directory under third_party and the second element is the subdirectory
# that needs to be added to sys.path.
THIRD_PARTY_LIBS = [
('python-gflags', ''),
('google-api-python-client', ''),
('httplib2', 'python2'),
('boto', ''),
('socksipy-branch', ''),
('retry-decorator', ''),
]
for libdir, subdir in THIRD_PARTY_LIBS:
if not os.path.isdir(os.path.join(THIRD_PARTY_DIR, libdir)):
_OutputAndExit(
'There is no %s library under the gsutil third-party directory (%s).\n'
'The gsutil command cannot work properly when installed this way.\n'
'Please re-install gsutil per the installation instructions.' % (
libdir, THIRD_PARTY_DIR))
sys.path.insert(0, os.path.join(THIRD_PARTY_DIR, libdir, subdir))
# The wrapper script adds all third_party libraries to the Python path, since
# we don't assume any third party libraries are installed system-wide.
THIRD_PARTY_DIR = os.path.join(GSUTIL_DIR, 'third_party')
CRCMOD_PATH = os.path.join(THIRD_PARTY_DIR, 'crcmod', 'python2')
CRCMOD_OSX_PATH = os.path.join(THIRD_PARTY_DIR, 'crcmod_osx')
try:
import crcmod
except ImportError:
crcmod = None
if not UsingCrcmodExtension(crcmod):
local_crcmod_path = (CRCMOD_OSX_PATH
if 'darwin' in str(sys.platform).lower()
else CRCMOD_PATH)
sys.path.insert(0, local_crcmod_path)
def RunMain():
import gslib.__main__
sys.exit(gslib.__main__.main())
if __name__ == '__main__':
RunMain()