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#!/usr/bin/env python
# pip installs packages using pinned package versions. If CERTBOT_OLDEST is set
# to 1, tools/oldest_constraints.txt is used, otherwise, tools/requirements.txt
# is used.
from __future__ import absolute_import
from __future__ import print_function
import os
import subprocess
import sys
import tempfile
import readlink
def find_tools_path():
return os.path.dirname(readlink.main(__file__))
def call_with_print(command, env=None):
if not env:
env = os.environ
print(command)
subprocess.check_call(command, shell=True, env=env)
def pip_install_with_print(args_str, env=None):
if not env:
env = os.environ
command = ['"', sys.executable, '" -m pip install --disable-pip-version-check ', args_str]
call_with_print(''.join(command), env=env)
def main(args):
tools_path = find_tools_path()
with tempfile.TemporaryDirectory() as working_dir:
if os.environ.get('CERTBOT_NO_PIN') == '1':
# With unpinned dependencies, there is no constraint
pip_install_with_print(' '.join(args))
else:
# Otherwise, we pick the constraints file based on the environment
# variable CERTBOT_OLDEST.
repo_path = os.path.dirname(tools_path)
if os.environ.get('CERTBOT_OLDEST') == '1':
constraints_path = os.path.normpath(os.path.join(
repo_path, 'tools', 'oldest_constraints.txt'))
else:
constraints_path = os.path.normpath(os.path.join(
repo_path, 'tools', 'requirements.txt'))
env = os.environ.copy()
env["PIP_CONSTRAINT"] = constraints_path
pip_install_with_print(' '.join(args), env=env)
if __name__ == '__main__':
main(sys.argv[1:])
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