bin/chmod-lite.py

#!/usr/bin/python -b
# Copyright 2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

import os
import sys

from portage.util import apply_recursive_permissions

# Change back to original cwd _after_ all imports (bug #469338).
os.chdir(os.environ["__PORTAGE_HELPER_CWD"])


def main(files):

    # We can't trust that the filesystem encoding (locale dependent)
    # correctly matches the arguments, so use surrogateescape to
    # pass through the original argv bytes for Python 3.
    fs_encoding = sys.getfilesystemencoding()
    files = [x.encode(fs_encoding, "surrogateescape") for x in files]

    for filename in files:
        # Emulate 'chmod -fR a+rX,u+w,g-w,o-w' with minimal chmod calls.
        apply_recursive_permissions(
            filename, filemode=0o644, filemask=0o022, dirmode=0o755, dirmask=0o022
        )

    return os.EX_OK


if __name__ == "__main__":
    sys.exit(main(sys.argv[1:]))