diskimage-builder/elements/pypi/pre-install.d/00-configure-pypi-mirror
Gregory Haynes 76ddfc439f Namespace PYPI_MIRROR_URL vars with DIB
We have a good pattern of namespacing env vars with DIB_. Add support
for DIB_PYPI_MIRROR_URL* and maintain backwards compat support.

Change-Id: I434c9d1b14cd571b20754c9ad7cd64c936f8399a
2015-02-18 19:12:26 +00:00

69 lines
2.6 KiB
Python
Executable file

#!/usr/bin/env python
#
# 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.
from __future__ import print_function
import os.path
def main():
home = os.path.expanduser("~")
backup_configs(home)
indices = []
if (os.environ.get('DIB_PYPI_MIRROR_URL') or
os.environ.get('PYPI_MIRROR_URL')):
candidates = [k for k in os.environ if
k.startswith('DIB_PYPI_MIRROR_URL')]
back_compat = [k for k in os.environ if
k.startswith('PYPI_MIRROR_URL')]
if len(back_compat) > 0:
print('DEPRECATION WARNING: Please use DIB_PYPI_MIRROR_URL* rather'
' than PYPI_MIRROR_URL*')
candidates += back_compat
indices = list(map(os.environ.get, sorted(candidates)))
else:
indices = ['file:///tmp/pypi']
print('WARNING: You are using the pypi element but no pypi mirror is '
'defined via the PYPI_MIRROR_URL env variable')
easy_index = indices[-1]
use_pypi_python_org = True
if os.environ.get('DIB_OFFLINE'):
use_pypi_python_org = False
if os.environ.get('DIB_NO_PYPI_PIP'):
use_pypi_python_org = False
if use_pypi_python_org:
indices.append('https://pypi.python.org/simple')
with file(home + '/.pip/pip.conf', 'wt') as output:
output.write('[global]\n')
output.write('log = %s/pip.log\n' % (home,))
output.write('index-url = %s\n' % (indices[0],))
for index in indices[1:]:
output.write('extra-index-url = %s\n' % (index,))
with file(home + '/.pydistutils.cfg', 'wt') as output:
output.write('[easy_install]\n')
output.write('index_url = %s\n' % (easy_index,))
def backup_configs(home):
pip_dir = home + '/.pip'
if not os.path.exists(pip_dir):
os.mkdir(pip_dir)
if os.path.exists(pip_dir + '/pip.conf'):
os.rename(pip_dir + '/pip.conf', pip_dir + '/pip.conf.orig')
if os.path.exists(home + '/.pydistutils.cfg'):
os.rename(home + '/.pydistutils.cfg', home + '/.pydistutils.cfg.orig')
if __name__ == '__main__':
main()