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In order to properly enable verbose logging for plugin enumeration, verbosity option must be extracted before commands are processed, and therefore before all valid arguments are known. ArgumentParser.parse_known_args() is used for this, which will collect all unexpected arguments into an "extras" list, rather than raising an error. This, however, has an outstanding bug, where if say option '-v' is known and '-f is unknown, args '-v -f' will be parsed correctly (with '-f' being collected into extras), but '-vf' will not, resulting in an error. To get around this, pre-process sys.argv to detect joined options and manually split them into separate args.
109 lines
4.0 KiB
Python
109 lines
4.0 KiB
Python
# Copyright 2013-2015 ARM Limited
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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 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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import sys
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import argparse
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import logging
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import os
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import subprocess
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import warnings
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from wa.framework import pluginloader
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from wa.framework.command import init_argument_parser
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from wa.framework.configuration import settings
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from wa.framework.configuration.execution import ConfigManager
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from wa.framework.host import init_user_directory
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from wa.framework.exception import WAError, DevlibError, ConfigError
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from wa.utils import log
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from wa.utils.doc import format_body
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from wa.utils.misc import get_traceback
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warnings.filterwarnings(action='ignore', category=UserWarning, module='zope')
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logger = logging.getLogger('command_line')
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def load_commands(subparsers):
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commands = {}
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for command in pluginloader.list_commands():
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commands[command.name] = pluginloader.get_command(command.name,
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subparsers=subparsers)
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return commands
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# ArgumentParser.parse_known_args() does not correctly deal with concatenated
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# single character options. See https://bugs.python.org/issue16142 for the
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# description of the issue (with a fix attached since 2013!). To get around
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# this problem, this will pre-process sys.argv to detect such joined options
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# and split them.
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def split_joined_options(argv):
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output = []
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for part in argv:
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if len(part) > 1 and part[0] == '-' and part[1] != '-':
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for c in part[1:]:
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output.append('-' + c)
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else:
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output.append(part)
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return output
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def main():
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if not os.path.exists(settings.user_directory):
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init_user_directory()
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try:
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description = ("Execute automated workloads on a remote device and process "
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"the resulting output.\n\nUse \"wa <subcommand> -h\" to see "
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"help for individual subcommands.")
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parser = argparse.ArgumentParser(description=format_body(description, 80),
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prog='wa',
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formatter_class=argparse.RawDescriptionHelpFormatter,
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)
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init_argument_parser(parser)
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# load_commands will trigger plugin enumeration, and we want logging
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# to be enabled for that, which requires the verbosity setting; however
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# full argument parse cannot be complted until the commands are loaded; so
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# parse just the base args for know so we can get verbosity.
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argv = split_joined_options(sys.argv[1:])
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args, _ = parser.parse_known_args(argv)
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settings.set("verbosity", args.verbose)
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log.init(settings.verbosity)
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# each command will add its own subparser
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commands = load_commands(parser.add_subparsers(dest='command'))
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args = parser.parse_args(argv)
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config = ConfigManager()
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config.load_config_file(settings.user_config_file)
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for config_file in args.config:
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if not os.path.exists(config_file):
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raise ConfigError("Config file {} not found".format(config_file))
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config.load_config_file(config_file)
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command = commands[args.command]
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sys.exit(command.execute(config, args))
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except KeyboardInterrupt:
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logging.info('Got CTRL-C. Aborting.')
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sys.exit(3)
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except Exception as e: # pylint: disable=broad-except
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if not getattr(e, 'logged', None):
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log.log_error(e, logger)
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sys.exit(2)
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