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gsutil.py
#!/usr/bin/env python # -*- coding: utf-8 -*- # 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.""" from __future__ import absolute_import from __future__ import print_function from __future__ import division from __future__ import unicode_literals import os import sys import warnings # TODO: gsutil-beta: Distribute a pylint rc file. ver = sys.version_info if ver.major != 3 or ver.minor < 8 or ver.minor > 12: sys.exit( "Error: gsutil requires Python version 3.8-3.12, but a different version is installed.\n" "You are currently running Python {}.{}\n" "Follow the steps below to resolve this issue:\n" "\t1. Switch to Python 3.8-3.12 using your Python version manager or install an appropriate version.\n" "\t2. If you are unsure how to manage Python versions, visit [https://cloud.google.com/storage/docs/gsutil_install#specifications] for detailed instructions.".format(ver.major, ver.minor) ) # setup a string to load the correct httplib2 if sys.version_info.major == 2: submodule_pyvers = 'python2' else: submodule_pyvers = 'python3' def OutputAndExit(message): sys.stderr.write('%s\n' % message) sys.exit(1) def _fix_google_module(): """Reloads the google module to prefer our third_party copy. When Python is not invoked with the -S option, it may preload the google module via .pth file. This leads to the "site_packages" version being preferred over gsutil "third_party" version. To force the "third_party" version, insert the path at the start of sys.path and reload the google module. This is a hacky. Reloading is required for the rare case that users have google-auth already installed in their Python environment. Note that this reload may cause an issue for Python 3.5.3 and lower because of the weakref issue, fixed in Python 3.5.4: https://github.com/python/cpython/commit/9cd7e17640a49635d1c1f8c2989578a8fc2c1de6. """ if 'google' not in sys.modules: return import importlib # pylint: disable=g-import-not-at-top importlib.reload(sys.modules['google']) 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') VENDORED_DIR = os.path.join(THIRD_PARTY_DIR, 'vendored') # Flag for whether or not an import wrapper is used to measure time taken for # individual imports. MEASURING_TIME_ACTIVE = False # 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 = [ ('argcomplete', ''), # For tab-completion (gcloud installs only). ('mock', ''), ('funcsigs', ''), # mock dependency ('google-reauth-python', ''), # Package name: google_reauth ('pyu2f', ''), # google_reauth dependency ('pyasn1', ''), # oauth2client dependency ('pyasn1-modules', ''), # oauth2client dependency ('rsa', ''), # oauth2client dependency ('apitools', ''), ('gcs-oauth2-boto-plugin', ''), ('fasteners', ''), # oauth2client and apitools dependency ('monotonic', ''), # fasteners dependency ('pyparsing', ''), # httplib2 dependency ('httplib2', submodule_pyvers), ('retry-decorator', ''), ('six', ''), # Python 2 / 3 compatibility dependency ('cachetools', 'src'), # google auth dependency ('urllib3', 'src'), # requests dependency ('charset_normalizer', ''), # requests dependency ('chardet', ''), # requests dependency ('certifi', ''), # requests dependency ('idna', ''), # requests dependency ('requests', 'src'), # google auth dependency ('google-auth-library-python', ''), ('google-auth-library-python-httplib2', ''), #Package name: google-auth-httplib2 ] # 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. # # Note that vendored libraries (e.g. Boto) are added to the Python path in # gslib/__init__.py, as they will always be present even when bypassing this # script and invoking gslib.__main__.py's main() method directly. THIRD_PARTY_DIR = os.path.join(GSUTIL_DIR, 'third_party') 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)) CRCMOD_PATH = os.path.join(THIRD_PARTY_DIR, 'crcmod', submodule_pyvers) CRCMOD_OSX_PATH = os.path.join(THIRD_PARTY_DIR, 'crcmod_osx') try: # pylint: disable=g-import-not-at-top import crcmod except ImportError: # Note: the bundled crcmod module under THIRD_PARTY_DIR does not include its # compiled C extension, but we still add it to sys.path because other parts of # gsutil assume that at least the core crcmod module will be available. 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(): _fix_google_module() # pylint: disable=g-import-not-at-top import gslib.__main__ sys.exit(gslib.__main__.main()) if __name__ == '__main__': RunMain()
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