mirror of
ssh://git.janware.com/srv/git/janware/proj/jw-python
synced 2026-01-15 09:53:32 +01:00
Jan Lindemann
c5b964a5bb
Add method jwutils.Cmd.add_subcommands(). cmd.add_subcommands(C) will parse and invoke C as a subcommand of cmd, if C is of type jwutils.cmd. Signed-off-by: Jan Lindemann <jan@janware.com>
42 lines
1 KiB
Python
42 lines
1 KiB
Python
import abc
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import argparse
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from jwutils import log
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# compatible with Python 2 *and* 3
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ABC = abc.ABCMeta('ABC', (object,), {'__slots__': ()})
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# full blown example of one level of nested subcommands
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# git -C project remote -v show -n myremote
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class Cmd(ABC): # export
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@abc.abstractmethod
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async def run(self, args):
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pass
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def __init__(self, name, help):
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self.name = name
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self.help = help
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self.parent = None
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self.children = []
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self.child_classes = []
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async def _run(self, args):
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pass
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def add_parser(self, parsers):
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r = parsers.add_parser(self.name, help=self.help,
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formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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r.set_defaults(func=self.run)
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return r
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def add_subcommands(self, cmd):
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if isinstance(cmd, list):
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for c in cmd:
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self.add_subcommands(c)
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return
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self.child_classes.append(cmd)
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def add_arguments(self, parser):
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pass
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