ansible/test/runner/injector/python.py
2019-07-11 14:25:57 -07:00

75 lines
2.2 KiB
Python
Executable file

#!/usr/bin/env python
"""Provides an entry point for python scripts and python modules on the controller with the current python interpreter and optional code coverage collection."""
import os
import sys
def main():
"""Main entry point."""
name = os.path.basename(__file__)
args = [sys.executable]
coverage_config = os.environ.get('COVERAGE_CONF')
coverage_output = os.environ.get('COVERAGE_FILE')
if coverage_config:
if coverage_output:
args += ['-m', 'coverage.__main__', 'run', '--rcfile', coverage_config]
else:
if sys.version_info >= (3, 4):
# noinspection PyUnresolvedReferences
import importlib.util
# noinspection PyUnresolvedReferences
found = bool(importlib.util.find_spec('coverage'))
else:
import imp
try:
imp.find_module('coverage')
found = True
except ImportError:
found = False
if not found:
exit('ERROR: Could not find `coverage` module. Did you use a virtualenv created without --system-site-packages or with the wrong interpreter?')
if name == 'python.py':
if sys.argv[1] == '-c':
# prevent simple misuse of python.py with -c which does not work with coverage
sys.exit('ERROR: Use `python -c` instead of `python.py -c` to avoid errors when code coverage is collected.')
elif name == 'pytest':
args += ['-m', 'pytest']
else:
args += [find_executable(name)]
args += sys.argv[1:]
os.execv(args[0], args)
def find_executable(name):
"""
:type name: str
:rtype: str
"""
path = os.environ.get('PATH', os.path.defpath)
seen = set([os.path.abspath(__file__)])
for base in path.split(os.path.pathsep):
candidate = os.path.abspath(os.path.join(base, name))
if candidate in seen:
continue
seen.add(candidate)
if os.path.exists(candidate) and os.access(candidate, os.F_OK | os.X_OK):
return candidate
raise Exception('Executable "%s" not found in path: %s' % (name, path))
if __name__ == '__main__':
main()