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ce4b573 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | # -*- coding=utf-8 -*-
from __future__ import absolute_import, unicode_literals
import argparse
import os
import sys
from .options import project
class BaseCommand(object):
"""A CLI command.
"""
name = None
description = None
default_arguments = [project]
arguments = []
def __init__(self, parser=None):
if not parser:
parser = argparse.ArgumentParser(
prog=os.path.basename(sys.argv[0]),
description="Base argument parser for passa"
)
self.parser = parser
self.add_arguments()
@classmethod
def build_parser(cls):
parser = argparse.ArgumentParser(
prog="passa {}".format(cls.name),
description=cls.description,
)
return cls(parser)
@classmethod
def run_parser(cls):
parser = cls.build_parser()
parser()
def __call__(self, argv=None):
options = self.parser.parse_args(argv)
result = self.main(options)
if result is not None:
sys.exit(result)
def add_default_arguments(self):
for arg in self.default_arguments:
arg.add_to_parser(self.parser)
def add_arguments(self):
self.add_default_arguments()
for arg in self.arguments:
arg.add_to_parser(self.parser)
def main(self, options):
return self.run(options)
def run(self, options):
raise NotImplementedError
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