325c9ae9c3
We use syntaxes which can be used only in Python2 at many locations. But we should reduce the use of the syntaxes. This patch serves syntax level compatibility with Python3. However, for full compatibility is required still a lot of work because many API changes are made between 2 to 3. Signed-off-by: Satoshi Kobayashi <satoshi-k@stratosphere.co.jp> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
76 lines
2.4 KiB
Python
76 lines
2.4 KiB
Python
# Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2014 YAMAMOTO Takashi <yamamoto at valinux co jp>
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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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import ryu.contrib
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from ryu import cfg
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from ryu import utils
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from ryu import version
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import argparse
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import os.path
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import sys
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subcommands = {
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'run': 'ryu.cmd.manager',
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'of-config-cli': 'ryu.cmd.of_config_cli',
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'rpc-cli': 'ryu.cmd.rpc_cli',
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}
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class RemainderOpt(cfg.MultiStrOpt):
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def _get_argparse_kwargs(self, group, **kwargs):
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kwargs = cfg.MultiStrOpt._get_argparse_kwargs(self, group, **kwargs)
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kwargs['nargs'] = argparse.REMAINDER
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return kwargs
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base_conf = cfg.ConfigOpts()
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base_conf.register_cli_opt(cfg.StrOpt('subcommand', positional=True,
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required=True,
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help='[%s]' % '|'.join(
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subcommands.keys())))
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base_conf.register_cli_opt(RemainderOpt('subcommand_args', default=[],
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positional=True,
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help='subcommand specific arguments'))
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class SubCommand(object):
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def __init__(self, name, entry):
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self.name = name
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self.entry = entry
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def run(self, args):
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prog = '%s %s' % (os.path.basename(sys.argv[0]), self.name,)
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self.entry(args=args, prog=prog)
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def main():
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try:
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base_conf(project='ryu', version='ryu %s' % version)
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except cfg.RequiredOptError as e:
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base_conf.print_help()
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raise SystemExit(1)
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subcmd_name = base_conf.subcommand
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try:
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subcmd_mod_name = subcommands[subcmd_name]
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except KeyError:
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base_conf.print_help()
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raise SystemExit('Unknown subcommand %s' % subcmd_name)
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subcmd_mod = utils.import_module(subcmd_mod_name)
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subcmd = SubCommand(name=subcmd_name, entry=subcmd_mod.main)
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subcmd.run(base_conf.subcommand_args)
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