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#===----------------------------------------------------------------------===##
#
# The LLVM Compiler Infrastructure
#
# This file is dual licensed under the MIT and the University of Illinois Open
# Source Licenses. See LICENSE.TXT for details.
#
#===----------------------------------------------------------------------===##
"""not.py is a utility for inverting the return code of commands.
It acts similar to llvm/utils/not.
ex: python /path/to/not.py ' echo hello
echo $? // (prints 1)
"""
import distutils.spawn
import subprocess
import sys
def main():
argv = list(sys.argv)
del argv[0]
if len(argv) > 0 and argv[0] == '--crash':
del argv[0]
expectCrash = True
else:
expectCrash = False
if len(argv) == 0:
return 1
prog = distutils.spawn.find_executable(argv[0])
if prog is None:
sys.stderr.write('Failed to find program %s' % argv[0])
return 1
rc = subprocess.call(argv)
if rc < 0:
return 0 if expectCrash else 1
if expectCrash:
return 1
return rc == 0
if __name__ == '__main__':
exit(main())
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