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7b3025f93e
Only run code when the script is executed directly (not imported). Factorize command description by using the script's __doc__ variable. Fix typo in --force help message. Signed-off-by: Robin Jarry <robin.jarry@6wind.com> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
77 lines
2.1 KiB
Python
77 lines
2.1 KiB
Python
#!/usr/bin/env python
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'''Wrapper for python2 and python3 around compileall to raise exception
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when a python byte code generation failed.
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Inspired from:
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http://stackoverflow.com/questions/615632/how-to-detect-errors-from-compileall-compile-dir
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'''
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from __future__ import print_function
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import sys
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import py_compile
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import compileall
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import argparse
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def check_for_errors(comparison):
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'''Wrap comparison operator with code checking for PyCompileError.
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If PyCompileError was raised, re-raise it again to abort execution,
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otherwise perform comparison as expected.
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'''
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def operator(self, other):
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exc_type, value, traceback = sys.exc_info()
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if exc_type is not None and issubclass(exc_type,
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py_compile.PyCompileError):
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print("Cannot compile %s" % value.file)
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raise value
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return comparison(self, other)
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return operator
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class ReportProblem(int):
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'''Class that pretends to be an int() object but implements all of its
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comparison operators such that it'd detect being called in
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PyCompileError handling context and abort execution
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'''
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VALUE = 1
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def __new__(cls, *args, **kwargs):
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return int.__new__(cls, ReportProblem.VALUE, **kwargs)
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@check_for_errors
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def __lt__(self, other):
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return ReportProblem.VALUE < other
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@check_for_errors
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def __eq__(self, other):
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return ReportProblem.VALUE == other
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def __ge__(self, other):
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return not self < other
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def __gt__(self, other):
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return not self < other and not self == other
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def __ne__(self, other):
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return not self == other
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("target", metavar="TARGET",
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help="Directory to scan")
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parser.add_argument("--force", action="store_true",
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help="Force compilation even if already compiled")
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args = parser.parse_args()
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compileall.compile_dir(args.target, force=args.force, quiet=ReportProblem())
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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