# external
from dephell_argparse import Command, Parser
# app
from .commands import COMMANDS
from .constants import ReturnCodes
from .exceptions import ExtraException
logger = getLogger('dephell.cli')
parser = Parser(
description='Manage dependencies, projects, virtual environments.',
usage='dephell COMMAND [OPTIONS]',
)
for handler in COMMANDS.values():
parser.add_command(handler=handler)
def main(argv: List[str]) -> int:
# print help
if not argv:
parser._print_message(parser.format_help())
return ReturnCodes.OK.value
if len(argv) == 1 and argv[0] in ('--help', 'help', 'commands'):
parser._print_message(parser.format_help())
return ReturnCodes.OK.value
if len(argv) == 1 and argv[0] in ('-v', '--version'):
argv = ['inspect', 'self']
# rewrite argv to get help about command
if len(argv) >= 1 and argv[0] in ('--help', 'help'):
# project
from dephell_argparse import CommandHandler, Parser
class SumCommand(CommandHandler):
"""Return sum of numbers
"""
@staticmethod
def build_parser(parser: Parser) -> Parser:
parser.add_argument('numbers', type=int, nargs='+')
return parser
def __call__(self):
result = sum(self.args.numbers)
self.print(result)
return 0
parser = Parser()
parser.add_command(SumCommand)
if __name__ == '__main__':
exit(parser.handle())
# project
from dephell_argparse import Parser
def hello(args) -> int:
"""Say "hello"!
"""
print('hello!')
return 0
parser = Parser()
parser.add_command(hello)
if __name__ == '__main__':
exit(parser.handle())