56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
"""Display command line usage information
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Usage:
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dcos help --info
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dcos help
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Options:
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--help Show this screen
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--info Show a short description of this subcommand
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--version Show version
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"""
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import dcoscli
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import docopt
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from dcos.api import emitting, options, subcommand, util
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emitter = emitting.FlatEmitter()
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def main():
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err = util.configure_logger_from_environ()
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if err is not None:
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emitter.publish(err)
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return 1
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args = docopt.docopt(
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__doc__,
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version='dcos-help version {}'.format(dcoscli.version))
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if args['help'] and args['--info']:
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emitter.publish(__doc__.split('\n')[0])
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# Note: this covers --all also.
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# Eventually we will only show commonly used commands for help
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# and use --all to show, well, all commands.
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elif args['help']:
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directory = util.dcos_path()
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commands_message = options.make_command_summary_string(
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sorted(
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subcommand.documentation(command_path)
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for command_path
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in subcommand.list_paths(directory)))
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emitter.publish(
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"Command line utility for the Mesosphere Datacenter Operating "
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"System (DCOS). The Mesosphere DCOS is a distributed operating "
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"system built around Apache Mesos. This utility provides tools "
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"for easy management of a DCOS installation.\n")
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emitter.publish("Available DCOS commands in {!r}:".format(directory))
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emitter.publish(commands_message)
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emitter.publish(
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"\nGet detailed command description with 'dcos <command> --help'.")
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return 0
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else:
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emitter.publish(options.make_generic_usage_message(__doc__))
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return 1
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