f0f03b4c91
Allow for more complex manipulation of arguments to be contained within a separate method for clarity. Change-Id: I9d5f369511401591d3267a8654bfb871f8208820
41 lines
1.5 KiB
Python
41 lines
1.5 KiB
Python
#
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# Copyright (c) 2012-2015 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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from git_upstream.commands import GitUpstreamCommand
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from git_upstream.log import LogDedentMixin
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class HelpCommand(LogDedentMixin, GitUpstreamCommand):
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"""Display help about this program or one of its commands."""
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name = "help"
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def __init__(self, *args, **kwargs):
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super(HelpCommand, self).__init__(*args, **kwargs)
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self.parser.add_argument('command', metavar='<command>', nargs='?',
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help="command to display help about")
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def execute(self, args, parent_parser=None):
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if getattr(args, 'command', None):
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if args.command in args.subcommands:
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args.subcommands[args.command].print_help()
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else:
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self.parser.error("'%s' is not a valid subcommand" %
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args.command)
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else:
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parent_parser.print_help()
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