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