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#!/usr/bin/env python
# Ubuntu CI Engine
# Copyright 2014 Canonical Ltd.
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License version 3, as
# published by the Free Software Foundation.
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
HERE = os.path.abspath(os.path.dirname(__file__))
def _usage():
print('Usage: %s script [arg [arg...]]' % sys.argv[0])
print('Sets up a PYTHONPATH with our ci-utils so that python scripts '
'can be launched properly')
sys.exit(0)
def _parse_args(args):
if not args or args[0] in ['-h', '--help', '-help']:
_usage()
return args[0], args
def _component_path(basedir, script):
'''return the path to the component of the script'''
script = os.path.abspath(script)
if basedir not in script:
sys.exit('ERROR: scripts must reside in source tree')
script = script[len(basedir) + 1:]
return script.split('/')[0]
def main(args):
script, args = _parse_args(args)
ci_utils = os.path.join(HERE, 'ci-utils')
comp = _component_path(HERE, script)
python_path = os.environ.get('PYTHONPATH')
if python_path:
python_path = '{}:{}:{}'.format(ci_utils, comp, python_path)
else:
python_path = '{}:{}'.format(ci_utils, comp)
os.environ['PYTHONPATH'] = python_path
os.execv(script, args)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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