def execute(self):
"""Executes the specified command.
"""
parser = ArgumentParser(add_help=False)
help_args = ('-h', '--help')
help = False
command = None
try:
for help_arg in help_args:
if help_arg in self._argv:
help = self._argv.pop(self._argv.index(help_arg))
if self._argv:
command = self.get_command(self._argv.pop(0))
if command:
parser.add_arguments(command.arguments)
parser.description = command.help
parser.usage = self.get_command_usage(command)
except:
raise
if not command:
parser.usage = self.available_commands_usage
help = True
if help:
parser.print_help()
if command and not help:
try:
command.parsed_args = parser.parse_args(self._argv)
return command()
except ConsoleError as exc:
sys.stderr.write(
colors.fail('Error: {0}\n'.format(str(exc).strip("'"))))
def execute(self):
"""Executes the specified command.
"""
parser = ArgumentParser(add_help=False)
help_args = ('-h', '--help')
help = False
command = None
try:
for help_arg in help_args:
if help_arg in self._argv:
help = self._argv.pop(self._argv.index(help_arg))
if self._argv:
command = self.get_command(self._argv.pop(0))
if command:
parser.add_arguments(command.arguments)
parser.description = command.help
parser.usage = self.get_command_usage(command)
except:
raise
if not command:
parser.usage = self.available_commands_usage
help = True
if help:
parser.print_help()
if command and not help:
try:
command.parsed_args = parser.parse_args(self._argv)
return command()
except ConsoleError as exc:
sys.stderr.write(
colors.fail('Error: {0}\n'.format(str(exc).strip("'"))))
def _handle_exc(self, exc):
exc_msg = str(exc).strip("'")
sys.stderr.write(colors.fail('Error: {0}\n'.format(exc_msg)))
sys.exit(1)
def attach_commands(self, parser, namespace):
"""Register the commands against the parser.
Args:
parser: The parser to add commands to
namespace: The namespace the commands should sit within
"""
subparsers = parser.add_subparsers()
namespaces = {}
for command_class in self.commands:
command_class = self.get_command(command_class)
command_namespace = command_class.cased_name()
if command_namespace not in namespaces:
namespaces[command_namespace] = []
command_help = command_class.help()
# if namespace in self.commands:
methods = [cmethod for cmethod in dir(command_class)
if hasattr(getattr(command_class, cmethod), 'is_cli_command')]
for a_command in methods:
command = getattr(command_class, a_command)
namespaces[command_namespace].append((a_command, command.__func_doc__))
if command_namespace == namespace:
subparser = subparsers.add_parser(
a_command,
help=command.__func_doc__,
description=command.__desc__)
for arg, kwargs in command.__args__:
subparser.add_argument(arg, **kwargs)
subparser.set_defaults(
command=(
command_class,
a_command,
command.__args_mapping__))
self.update_usage(
subparser, namespace, is_subparser=True)
if command_namespace == namespace:
# when viewing a command
parser.description = command_help
self.update_usage(parser, namespace)
return
if not namespace:
# when viewing the namespaces
subparsers.add_parser(
command_namespace,
description=command_help,
help=command_help)
self.update_usage(parser, namespace)
if not namespace or namespace not in namespaces:
# Override the default output from argparse to display all the
# namespaces and their commands.
parser.print_usage()
self.write()
longest_namespace = max(namespaces, key=len)
length = len(longest_namespace)
for namespace in sorted(namespaces):
commands = namespaces[namespace]
self.write(colors.fail(styles.bold(namespace.ljust(length))))
longest_command = max([command[0] for command in commands], key=len)
longest_command_length = len(longest_command)
for command, help in sorted(commands):
command = styles.bold(command.ljust(longest_command_length))
self.write(' {}\t{}'.format(command, help))
self.write()
sys.exit(0)
def test_fail(self):
assert fail('test') == '\033[91mtest\033[0m'
assert fail('test', terminate=False) == '\033[91mtest'