INNER CODE UNIT · Python

parse_args

Yelp/paasta · paasta_tools/cli/cli.py:217

def parse_args(argv):
    """Initialize autocompletion and configure the argument parser.

    :return: an argparse.Namespace object mapping parameter names to the inputs
             from sys.argv
    """
    # NOTE: in "real" use, these env vars are set by
    # paasta_tabcomplete.sh (which we plop into
    # usr/share/bash-completion/completions/ as our completion script)
    if "_ARGCOMPLETE" in os.environ:
        # NOTE: COMP_LINE will be the full command so far
        comp_line = os.environ.get("COMP_LINE", "")
        comp_words = comp_line.split()

        # ...but we want to grab the subcommand since the
        # shell can handle tab-completing `paasta` :p
        if len(comp_words) >= 2 and comp_words[1] in PAASTA_SUBCOMMANDS:
            parser = get_argparser(commands=[comp_words[1]])

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