111 lines
3.0 KiB
Python
111 lines
3.0 KiB
Python
import subprocess
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from concurrent.futures import ThreadPoolExecutor
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import dcoscli
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import docopt
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from dcos import cmds, emitting, options, subcommand, util
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from dcos.errors import DCOSException
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from dcoscli.subcommand import (default_command_documentation,
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default_command_info, default_doc)
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from dcoscli.util import decorate_docopt_usage
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emitter = emitting.FlatEmitter()
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logger = util.get_logger(__name__)
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def main(argv):
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try:
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return _main(argv)
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except DCOSException as e:
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emitter.publish(e)
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return 1
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@decorate_docopt_usage
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def _main(argv):
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args = docopt.docopt(
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default_doc("help"),
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argv=argv,
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version='dcos-help version {}'.format(dcoscli.version))
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return cmds.execute(_cmds(), args)
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def _cmds():
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"""
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:returns: All of the supported commands
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:rtype: list of dcos.cmds.Command
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"""
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return [
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cmds.Command(
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hierarchy=['help', '--info'],
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arg_keys=[],
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function=_info),
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cmds.Command(
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hierarchy=['help'],
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arg_keys=['<subcommand>'],
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function=_help),
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]
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def _info():
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"""
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:returns: process return code
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:rtype: int
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"""
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emitter.publish(default_command_info("help"))
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return 0
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def _help(command):
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"""
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:param command: the command name for which you want to see a help
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:type command: str
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:returns: process return code
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:rtype: int
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"""
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if command is not None:
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_help_command(command)
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else:
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logger.debug("DCOS bin path: {!r}".format(util.dcos_bin_path()))
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results = [(c, default_command_info(c))
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for c in subcommand.default_subcommands()]
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paths = subcommand.list_paths()
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with ThreadPoolExecutor(max_workers=max(len(paths), 1)) as executor:
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results += list(executor.map(subcommand.documentation, paths))
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commands_message = options\
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.make_command_summary_string(sorted(results))
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emitter.publish(
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"Command line utility for the Mesosphere Datacenter Operating\n"
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"System (DC/OS). The Mesosphere DC/OS is a distributed operating\n"
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"system built around Apache Mesos. This utility provides tools\n"
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"for easy management of a DC/OS installation.\n")
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emitter.publish("Available DC/OS commands:")
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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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def _help_command(command):
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"""
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:param command: the command name for which you want to see a help
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:type command: str
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:returns: process return code
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:rtype: int
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"""
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if command in subcommand.default_subcommands():
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emitter.publish(default_command_documentation(command))
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return 0
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else:
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executable = subcommand.command_executables(command)
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return subprocess.call([executable, command, '--help'])
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