#! /usr/bin/env python3
"""The paper-git command dispatcher"""
import argparse
from papergit.core import initialize
from papergit.commands.base import BaseCommand
from papergit.utilities.modules import find_components
def main():
"""The `paper_git command dispatcher."""
parser = argparse.ArgumentParser(
description="""\
The Paper-to-Git system
Copyright 2017 Abhilash Raj""",
formatter_class=argparse.RawDescriptionHelpFormatter)
subparser = parser.add_subparsers(title='Commands')
subcommands = []
for command_class in find_components('papergit.commands', BaseCommand):
command = command_class()
assert issubclass(command_class, BaseCommand)
subcommands.append(command)
for command in subcommands:
command_parser = subparser.add_parser(
command.name, help=command.__doc__)
command.add(parser, command_parser)
command_parser.set_defaults(func=command.process)
args = parser.parse_args()
if len(args.__dict__) < 1:
# No arguments or subcommands were given.
parser.print_help()
parser.exit()
# Initialize the system.
initialize()
# Run the given command.
args.func(args)
