python-mistralclient/mistralclient/shell.py
LingxianKong 1e79ff5471 Add bash-completion command support
Implement a helper command 'mistral bash-completion' to generate available
commands and options supported by mistral.

Change-Id: Id0e52daf4ee3f7c1ba9fefaa4f103bd74e66d97d
Partically Implements: blueprint bash-completion-script-optimization
2015-05-18 12:01:42 +08:00

347 lines
13 KiB
Python

# Copyright 2015 - StackStorm, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Command-line interface to the Mistral APIs
"""
import logging
import sys
from mistralclient.api import client
import mistralclient.commands.v2.action_executions
import mistralclient.commands.v2.actions
import mistralclient.commands.v2.cron_triggers
import mistralclient.commands.v2.environments
import mistralclient.commands.v2.executions
import mistralclient.commands.v2.tasks
import mistralclient.commands.v2.workbooks
import mistralclient.commands.v2.workflows
from mistralclient.openstack.common import cliutils as c
from cliff import app
from cliff import command
from cliff import commandmanager
import argparse
LOG = logging.getLogger(__name__)
class OpenStackHelpFormatter(argparse.HelpFormatter):
def __init__(self, prog, indent_increment=2, max_help_position=32,
width=None):
super(OpenStackHelpFormatter, self).__init__(prog, indent_increment,
max_help_position, width)
def start_section(self, heading):
# Title-case the headings.
heading = '%s%s' % (heading[0].upper(), heading[1:])
super(OpenStackHelpFormatter, self).start_section(heading)
class HelpAction(argparse.Action):
"""Custom help action.
Provide a custom action so the -h and --help options
to the main app will print a list of the commands.
The commands are determined by checking the CommandManager
instance, passed in as the "default" value for the action.
"""
def __call__(self, parser, namespace, values, option_string=None):
outputs = []
max_len = 0
app = self.default
parser.print_help(app.stdout)
app.stdout.write('\nCommands for API v2 :\n')
for name, ep in sorted(app.command_manager):
factory = ep.load()
cmd = factory(self, None)
one_liner = cmd.get_description().split('\n')[0]
outputs.append((name, one_liner))
max_len = max(len(name), max_len)
for (name, one_liner) in outputs:
app.stdout.write(' %s %s\n' % (name.ljust(max_len), one_liner))
sys.exit(0)
class BashCompletionCommand(command.Command):
"""Prints all of the commands and options for bash-completion."""
def take_action(self, parsed_args):
commands = set()
options = set()
for option, _action in self.app.parser._option_string_actions.items():
options.add(option)
for command_name, _cmd in self.app.command_manager:
commands.add(command_name)
print(' '.join(commands | options))
class MistralShell(app.App):
def __init__(self):
super(MistralShell, self).__init__(
description=__doc__.strip(),
version='0.1',
command_manager=commandmanager.CommandManager('mistral.cli'),
)
# Set v2 commands by default
self._set_shell_commands(self._get_commands_v2())
def configure_logging(self):
super(MistralShell, self).configure_logging()
logging.getLogger('iso8601').setLevel(logging.WARNING)
if self.options.verbose_level <= 1:
logging.getLogger('requests').setLevel(logging.WARNING)
def build_option_parser(self, description, version,
argparse_kwargs=None):
"""Return an argparse option parser for this application.
Subclasses may override this method to extend
the parser with more global options.
:param description: full description of the application
:paramtype description: str
:param version: version number for the application
:paramtype version: str
:param argparse_kwargs: extra keyword argument passed to the
ArgumentParser constructor
:paramtype extra_kwargs: dict
"""
argparse_kwargs = argparse_kwargs or {}
parser = argparse.ArgumentParser(
description=description,
add_help=False,
formatter_class=OpenStackHelpFormatter,
**argparse_kwargs
)
parser.add_argument(
'--version',
action='version',
version='%(prog)s {0}'.format(version),
help='Show program\'s version number and exit.'
)
parser.add_argument(
'-v', '--verbose',
action='count',
dest='verbose_level',
default=self.DEFAULT_VERBOSE_LEVEL,
help='Increase verbosity of output. Can be repeated.',
)
parser.add_argument(
'--log-file',
action='store',
default=None,
help='Specify a file to log output. Disabled by default.',
)
parser.add_argument(
'-q', '--quiet',
action='store_const',
dest='verbose_level',
const=0,
help='Suppress output except warnings and errors.',
)
parser.add_argument(
'-h', '--help',
action=HelpAction,
nargs=0,
default=self, # tricky
help="Show this help message and exit.",
)
parser.add_argument(
'--debug',
default=False,
action='store_true',
help='Show tracebacks on errors.',
)
parser.add_argument(
'--os-mistral-url',
action='store',
dest='mistral_url',
default=c.env('OS_MISTRAL_URL',
default='http://localhost:8989/v2'),
help='Mistral API host (Env: OS_MISTRAL_URL)'
)
parser.add_argument(
'--os-username',
action='store',
dest='username',
default=c.env('OS_USERNAME', default='admin'),
help='Authentication username (Env: OS_USERNAME)'
)
parser.add_argument(
'--os-password',
action='store',
dest='password',
default=c.env('OS_PASSWORD', default='openstack'),
help='Authentication password (Env: OS_PASSWORD)'
)
parser.add_argument(
'--os-tenant-id',
action='store',
dest='tenant_id',
default=c.env('OS_TENANT_ID'),
help='Authentication tenant identifier (Env: OS_TENANT_ID)'
)
parser.add_argument(
'--os-tenant-name',
action='store',
dest='tenant_name',
default=c.env('OS_TENANT_NAME', 'Default'),
help='Authentication tenant name (Env: OS_TENANT_NAME)'
)
parser.add_argument(
'--os-auth-token',
action='store',
dest='token',
default=c.env('OS_AUTH_TOKEN'),
help='Authentication token (Env: OS_AUTH_TOKEN)'
)
parser.add_argument(
'--os-auth-url',
action='store',
dest='auth_url',
default=c.env('OS_AUTH_URL'),
help='Authentication URL (Env: OS_AUTH_URL)'
)
parser.add_argument(
'--os-cacert',
action='store',
dest='cacert',
default=c.env('OS_CACERT'),
help='Authentication CA Certificate (Env: OS_CACERT)'
)
return parser
def initialize_app(self, argv):
self._clear_shell_commands()
ver = client.determine_client_version(self.options.mistral_url)
self._set_shell_commands(self._get_commands(ver))
self.client = client.client(mistral_url=self.options.mistral_url,
username=self.options.username,
api_key=self.options.password,
project_name=self.options.tenant_name,
auth_url=self.options.auth_url,
project_id=self.options.tenant_id,
endpoint_type='publicURL',
service_type='workflow',
auth_token=self.options.token,
cacert=self.options.cacert)
def _set_shell_commands(self, cmds_dict):
for k, v in cmds_dict.items():
self.command_manager.add_command(k, v)
def _clear_shell_commands(self):
exclude_cmds = ['help', 'complete']
cmds = self.command_manager.commands.copy()
for k, v in cmds.items():
if k not in exclude_cmds:
self.command_manager.commands.pop(k)
def _get_commands(self, version):
if version == 2:
return self._get_commands_v2()
return {}
@staticmethod
def _get_commands_v2():
return {
'bash-completion': BashCompletionCommand,
'workbook-list': mistralclient.commands.v2.workbooks.List,
'workbook-get': mistralclient.commands.v2.workbooks.Get,
'workbook-create': mistralclient.commands.v2.workbooks.Create,
'workbook-delete': mistralclient.commands.v2.workbooks.Delete,
'workbook-update': mistralclient.commands.v2.workbooks.Update,
'workbook-get-definition':
mistralclient.commands.v2.workbooks.GetDefinition,
'workbook-validate': mistralclient.commands.v2.workbooks.Validate,
'workflow-list': mistralclient.commands.v2.workflows.List,
'workflow-get': mistralclient.commands.v2.workflows.Get,
'workflow-create': mistralclient.commands.v2.workflows.Create,
'workflow-delete': mistralclient.commands.v2.workflows.Delete,
'workflow-update': mistralclient.commands.v2.workflows.Update,
'workflow-get-definition':
mistralclient.commands.v2.workflows.GetDefinition,
'workflow-validate': mistralclient.commands.v2.workflows.Validate,
'environment-create':
mistralclient.commands.v2.environments.Create,
'environment-delete':
mistralclient.commands.v2.environments.Delete,
'environment-update':
mistralclient.commands.v2.environments.Update,
'environment-list': mistralclient.commands.v2.environments.List,
'environment-get': mistralclient.commands.v2.environments.Get,
'action-execution-list':
mistralclient.commands.v2.action_executions.List,
'action-execution-get':
mistralclient.commands.v2.action_executions.Get,
'action-execution-get-input':
mistralclient.commands.v2.action_executions.GetInput,
'action-execution-get-output':
mistralclient.commands.v2.action_executions.GetOutput,
'action-execution-update':
mistralclient.commands.v2.action_executions.Update,
'execution-create': mistralclient.commands.v2.executions.Create,
'execution-delete': mistralclient.commands.v2.executions.Delete,
'execution-update': mistralclient.commands.v2.executions.Update,
'execution-list': mistralclient.commands.v2.executions.List,
'execution-get': mistralclient.commands.v2.executions.Get,
'execution-get-input':
mistralclient.commands.v2.executions.GetInput,
'execution-get-output':
mistralclient.commands.v2.executions.GetOutput,
'task-list': mistralclient.commands.v2.tasks.List,
'task-get': mistralclient.commands.v2.tasks.Get,
'task-get-published': mistralclient.commands.v2.tasks.GetPublished,
'task-get-result': mistralclient.commands.v2.tasks.GetResult,
'action-list': mistralclient.commands.v2.actions.List,
'action-get': mistralclient.commands.v2.actions.Get,
'action-create': mistralclient.commands.v2.actions.Create,
'action-delete': mistralclient.commands.v2.actions.Delete,
'action-update': mistralclient.commands.v2.actions.Update,
'action-get-definition':
mistralclient.commands.v2.actions.GetDefinition,
'cron-trigger-list': mistralclient.commands.v2.cron_triggers.List,
'cron-trigger-get': mistralclient.commands.v2.cron_triggers.Get,
'cron-trigger-create':
mistralclient.commands.v2.cron_triggers.Create,
'cron-trigger-delete':
mistralclient.commands.v2.cron_triggers.Delete
}
def main(argv=sys.argv[1:]):
return MistralShell().run(argv)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))