| |
|
|
| 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 |
|
|
