python-manilaclient/manilaclient/shell.py
Doug Hellmann 25d9af18bc Drop use of 'oslo' namespace package
The Oslo libraries have moved all of their code out of the 'oslo'
namespace package into per-library packages. The namespace package was
retained during kilo for backwards compatibility, but will be removed by
the liberty-2 milestone. This change removes the use of the namespace
package, replacing it with the new package names.

The patches in the libraries will be put on hold until application
patches have landed, or L2, whichever comes first. At that point, new
versions of the libraries without namespace packages will be released as
a major version update.

Please merge this patch, or an equivalent, before L2 to avoid problems
with those library releases.

Blueprint: remove-namespace-packages
https://blueprints.launchpad.net/oslo-incubator/+spec/remove-namespace-packages

Change-Id: Ib86c36f81f6fdbee64d88dd0b1d126bcc16649ac
2015-05-06 19:35:22 +00:00

517 lines
20 KiB
Python

# Copyright 2011 OpenStack LLC.
# Copyright 2014 Mirantis, Inc.
# All Rights Reserved.
#
# 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 OpenStack Manila API.
"""
from __future__ import print_function
import argparse
import glob
import imp
import itertools
import logging
import os
import pkgutil
import sys
from oslo_utils import encodeutils
import six
from manilaclient import client
from manilaclient import exceptions as exc
import manilaclient.extension
from manilaclient.openstack.common import cliutils
from manilaclient.v1 import shell as shell_v1
# from manilaclient.v2 import shell as shell_v2
DEFAULT_OS_SHARE_API_VERSION = "1"
DEFAULT_MANILA_ENDPOINT_TYPE = 'publicURL'
DEFAULT_MANILA_SERVICE_TYPE = 'share'
logger = logging.getLogger(__name__)
class AllowOnlyOneAliasAtATimeAction(argparse.Action):
"""Allows only one alias of argument to be used at a time."""
def __call__(self, parser, namespace, values, option_string=None):
# NOTE(vponomaryov): this method is redefinition of
# argparse.Action.__call__ interface
if getattr(namespace, self.dest) is not None:
msg = "Only one alias is allowed at a time."
raise argparse.ArgumentError(self, msg)
setattr(namespace, self.dest, values)
class ManilaClientArgumentParser(argparse.ArgumentParser):
def __init__(self, *args, **kwargs):
super(ManilaClientArgumentParser, self).__init__(*args, **kwargs)
# NOTE(vponomaryov): Register additional action to be used by arguments
# with multiple aliases.
self.register('action', 'single_alias', AllowOnlyOneAliasAtATimeAction)
def error(self, message):
"""error(message: string)
Prints a usage message incorporating the message to stderr and
exits.
"""
self.print_usage(sys.stderr)
# FIXME(lzyeval): if changes occur in argparse.ArgParser._check_value
choose_from = ' (choose from'
progparts = self.prog.partition(' ')
self.exit(2, "error: %(errmsg)s\nTry '%(mainp)s help %(subp)s'"
" for more information.\n" %
{'errmsg': message.split(choose_from)[0],
'mainp': progparts[0],
'subp': progparts[2]})
def _get_option_tuples(self, option_string):
"""Avoid ambiguity in argument abbreviation.
Manilaclient uses aliases for command parameters and this method
is used for avoiding parameter ambiguity alert.
"""
option_tuples = super(
ManilaClientArgumentParser, self)._get_option_tuples(option_string)
if len(option_tuples) > 1:
opt_strings_list = []
opts = []
for opt in option_tuples:
if opt[0].option_strings not in opt_strings_list:
opt_strings_list.append(opt[0].option_strings)
opts.append(opt)
return opts
return option_tuples
class OpenStackManilaShell(object):
def get_base_parser(self):
parser = ManilaClientArgumentParser(
prog='manila',
description=__doc__.strip(),
epilog='See "manila help COMMAND" '
'for help on a specific command.',
add_help=False,
formatter_class=OpenStackHelpFormatter,
)
# Global arguments
parser.add_argument('-h', '--help',
action='store_true',
help=argparse.SUPPRESS)
parser.add_argument('--version',
action='version',
version=manilaclient.__version__)
parser.add_argument('-d', '--debug',
action='store_true',
default=cliutils.env('manilaclient_DEBUG',
default=False),
help="Print debugging output.")
parser.add_argument('--os-cache',
default=cliutils.env('OS_CACHE', default=False),
action='store_true',
help='Use the auth token cache. '
'Defaults to env[OS_CACHE].')
parser.add_argument('--os-reset-cache',
default=False,
action='store_true',
help='Delete cached password and auth token.')
parser.add_argument('--os-username',
metavar='<auth-user-name>',
default=cliutils.env('OS_USERNAME',
'MANILA_USERNAME'),
help='Defaults to env[OS_USERNAME].')
parser.add_argument('--os_username',
help=argparse.SUPPRESS)
parser.add_argument('--os-password',
metavar='<auth-password>',
default=cliutils.env('OS_PASSWORD',
'MANILA_PASSWORD'),
help='Defaults to env[OS_PASSWORD].')
parser.add_argument('--os_password',
help=argparse.SUPPRESS)
parser.add_argument('--os-tenant-name',
metavar='<auth-tenant-name>',
default=cliutils.env('OS_TENANT_NAME',
'MANILA_PROJECT_ID'),
help='Defaults to env[OS_TENANT_NAME].')
parser.add_argument('--os_tenant_name',
help=argparse.SUPPRESS)
parser.add_argument('--os-tenant-id',
metavar='<auth-tenant-id>',
default=cliutils.env('OS_TENANT_ID',
'MANILA_TENANT_ID'),
help='Defaults to env[OS_TENANT_ID].')
parser.add_argument('--os_tenant_id',
help=argparse.SUPPRESS)
parser.add_argument('--os-auth-url',
metavar='<auth-url>',
default=cliutils.env('OS_AUTH_URL',
'MANILA_URL'),
help='Defaults to env[OS_AUTH_URL].')
parser.add_argument('--os_auth_url',
help=argparse.SUPPRESS)
parser.add_argument('--os-region-name',
metavar='<region-name>',
default=cliutils.env('OS_REGION_NAME',
'MANILA_REGION_NAME'),
help='Defaults to env[OS_REGION_NAME].')
parser.add_argument('--os_region_name',
help=argparse.SUPPRESS)
parser.add_argument('--service-type',
metavar='<service-type>',
help='Defaults to compute for most actions.')
parser.add_argument('--service_type',
help=argparse.SUPPRESS)
parser.add_argument('--service-name',
metavar='<service-name>',
default=cliutils.env('MANILA_SERVICE_NAME'),
help='Defaults to env[MANILA_SERVICE_NAME].')
parser.add_argument('--service_name',
help=argparse.SUPPRESS)
parser.add_argument('--share-service-name',
metavar='<share-service-name>',
default=cliutils.env('MANILA_share_service_name'),
help='Defaults to env[MANILA_share_service_name].')
parser.add_argument('--share_service_name',
help=argparse.SUPPRESS)
parser.add_argument('--endpoint-type',
metavar='<endpoint-type>',
default=cliutils.env(
'MANILA_ENDPOINT_TYPE',
default=DEFAULT_MANILA_ENDPOINT_TYPE),
help='Defaults to env[MANILA_ENDPOINT_TYPE] or '
+ DEFAULT_MANILA_ENDPOINT_TYPE + '.')
parser.add_argument('--endpoint_type',
help=argparse.SUPPRESS)
parser.add_argument('--os-share-api-version',
metavar='<compute-api-ver>',
default=cliutils.env(
'OS_SHARE_API_VERSION',
default=DEFAULT_OS_SHARE_API_VERSION),
help='Accepts 1 or 2, defaults '
'to env[OS_SHARE_API_VERSION].')
parser.add_argument('--os_share_api_version',
help=argparse.SUPPRESS)
parser.add_argument('--os-cacert',
metavar='<ca-certificate>',
default=cliutils.env('OS_CACERT', default=None),
help='Specify a CA bundle file to use in '
'verifying a TLS (https) server certificate. '
'Defaults to env[OS_CACERT].')
parser.add_argument('--insecure',
default=cliutils.env('manilaclient_INSECURE',
default=False),
action='store_true',
help=argparse.SUPPRESS)
parser.add_argument('--retries',
metavar='<retries>',
type=int,
default=0,
help='Number of retries.')
return parser
def get_subcommand_parser(self, version):
parser = self.get_base_parser()
self.subcommands = {}
subparsers = parser.add_subparsers(metavar='<subcommand>')
try:
actions_module = {
'1.1': shell_v1,
}[version]
except KeyError:
actions_module = shell_v1
self._find_actions(subparsers, actions_module)
self._find_actions(subparsers, self)
for extension in self.extensions:
self._find_actions(subparsers, extension.module)
self._add_bash_completion_subparser(subparsers)
return parser
def _discover_extensions(self, version):
extensions = []
for name, module in itertools.chain(
self._discover_via_python_path(version),
self._discover_via_contrib_path(version)):
extension = manilaclient.extension.Extension(name, module)
extensions.append(extension)
return extensions
def _discover_via_python_path(self, version):
for (module_loader, name, ispkg) in pkgutil.iter_modules():
if name.endswith('python_manilaclient_ext'):
if not hasattr(module_loader, 'load_module'):
# Python 2.6 compat: actually get an ImpImporter obj
module_loader = module_loader.find_module(name)
module = module_loader.load_module(name)
yield name, module
def _discover_via_contrib_path(self, version):
module_path = os.path.dirname(os.path.abspath(__file__))
version_str = "v%s" % version.replace('.', '_')
ext_path = os.path.join(module_path, version_str, 'contrib')
ext_glob = os.path.join(ext_path, "*.py")
for ext_path in glob.iglob(ext_glob):
name = os.path.basename(ext_path)[:-3]
if name == "__init__":
continue
module = imp.load_source(name, ext_path)
yield name, module
def _add_bash_completion_subparser(self, subparsers):
subparser = subparsers.add_parser(
'bash_completion',
add_help=False,
formatter_class=OpenStackHelpFormatter)
self.subcommands['bash_completion'] = subparser
subparser.set_defaults(func=self.do_bash_completion)
def _find_actions(self, subparsers, actions_module):
for attr in (a for a in dir(actions_module) if a.startswith('do_')):
# I prefer to be hypen-separated instead of underscores.
command = attr[3:].replace('_', '-')
callback = getattr(actions_module, attr)
desc = callback.__doc__ or ''
help = desc.strip()
arguments = getattr(callback, 'arguments', [])
subparser = subparsers.add_parser(
command,
help=help,
description=desc,
add_help=False,
formatter_class=OpenStackHelpFormatter)
subparser.add_argument('-h', '--help',
action='help',
help=argparse.SUPPRESS,)
self.subcommands[command] = subparser
for (args, kwargs) in arguments:
subparser.add_argument(*args, **kwargs)
subparser.set_defaults(func=callback)
def setup_debugging(self, debug):
if not debug:
return
streamhandler = logging.StreamHandler()
streamformat = "%(levelname)s (%(module)s:%(lineno)d) %(message)s"
streamhandler.setFormatter(logging.Formatter(streamformat))
logger.setLevel(logging.DEBUG)
logger.addHandler(streamhandler)
def main(self, argv):
# Parse args once to find version and debug settings
parser = self.get_base_parser()
(options, args) = parser.parse_known_args(argv)
self.setup_debugging(options.debug)
# build available subcommands based on version
self.extensions = self._discover_extensions(
options.os_share_api_version)
self._run_extension_hooks('__pre_parse_args__')
subcommand_parser = self.get_subcommand_parser(
options.os_share_api_version)
self.parser = subcommand_parser
if options.help or not argv:
subcommand_parser.print_help()
return 0
args = subcommand_parser.parse_args(argv)
self._run_extension_hooks('__post_parse_args__', args)
# Short-circuit and deal with help right away.
if args.func == self.do_help:
self.do_help(args)
return 0
elif args.func == self.do_bash_completion:
self.do_bash_completion(args)
return 0
(os_username, os_password, os_tenant_name, os_auth_url,
os_region_name, os_tenant_id, endpoint_type, insecure,
service_type, service_name, share_service_name,
cacert, os_cache, os_reset_cache) = (
args.os_username, args.os_password, args.os_tenant_name,
args.os_auth_url, args.os_region_name, args.os_tenant_id,
args.endpoint_type, args.insecure, args.service_type,
args.service_name, args.share_service_name,
args.os_cacert, args.os_cache, args.os_reset_cache)
if share_service_name:
service_name = share_service_name
if not endpoint_type:
endpoint_type = DEFAULT_MANILA_ENDPOINT_TYPE
if not service_type:
service_type = DEFAULT_MANILA_SERVICE_TYPE
service_type = cliutils.get_service_type(args.func) or service_type
# FIXME(usrleon): Here should be restrict for project id same as
# for os_username or os_password but for compatibility it is not.
if not cliutils.isunauthenticated(args.func):
if not os_username:
raise exc.CommandError(
"You must provide a username "
"via either --os-username or env[OS_USERNAME]")
if not (os_tenant_name or os_tenant_id):
raise exc.CommandError("You must provide a tenant_id "
"via either --os-tenant-id or "
"env[OS_TENANT_ID]")
if not os_auth_url:
raise exc.CommandError(
"You must provide an auth url "
"via either --os-auth-url or env[OS_AUTH_URL]")
if not (os_tenant_name or os_tenant_id):
raise exc.CommandError(
"You must provide a tenant_id "
"via either --os-tenant-id or env[OS_TENANT_ID]")
if not os_auth_url:
raise exc.CommandError(
"You must provide an auth url "
"via either --os-auth-url or env[OS_AUTH_URL]")
self.cs = client.Client(options.os_share_api_version,
username=os_username,
api_key=os_password,
project_name=os_tenant_name,
auth_url=os_auth_url,
insecure=insecure, region_name=os_region_name,
tenant_id=os_tenant_id,
endpoint_type=endpoint_type,
extensions=self.extensions,
service_type=service_type,
service_name=service_name,
retries=options.retries,
http_log_debug=args.debug,
cacert=cacert,
use_keyring=os_cache,
force_new_token=os_reset_cache)
args.func(self.cs, args)
def _run_extension_hooks(self, hook_type, *args, **kwargs):
"""Run hooks for all registered extensions."""
for extension in self.extensions:
extension.run_hooks(hook_type, *args, **kwargs)
def do_bash_completion(self, args):
"""Print arguments for bash_completion.
Prints all of the commands and options to stdout so that the
manila.bash_completion script doesn't have to hard code them.
"""
commands = set()
options = set()
for sc_str, sc in list(self.subcommands.items()):
commands.add(sc_str)
for option in sc._optionals._option_string_actions:
options.add(option)
commands.remove('bash-completion')
commands.remove('bash_completion')
print(' '.join(commands | options))
@cliutils.arg('command', metavar='<subcommand>', nargs='?',
help='Display help for <subcommand>')
def do_help(self, args):
"""Display help about this program or one of its subcommands."""
if args.command:
if args.command in self.subcommands:
self.subcommands[args.command].print_help()
else:
raise exc.CommandError("'%s' is not a valid subcommand" %
args.command)
else:
self.parser.print_help()
# I'm picky about my shell help.
class OpenStackHelpFormatter(argparse.HelpFormatter):
def start_section(self, heading):
# Title-case the headings
heading = '%s%s' % (heading[0].upper(), heading[1:])
super(OpenStackHelpFormatter, self).start_section(heading)
def main():
try:
if sys.version_info >= (3, 0):
OpenStackManilaShell().main(sys.argv[1:])
else:
OpenStackManilaShell().main(
map(encodeutils.safe_decode, sys.argv[1:]))
except KeyboardInterrupt:
print("... terminating manila client", file=sys.stderr)
sys.exit(130)
except Exception as e:
logger.debug(e, exc_info=1)
message = e.message
if not isinstance(message, six.string_types):
message = str(message)
print("ERROR: %s" % encodeutils.safe_encode(message), file=sys.stderr)
sys.exit(1)
if __name__ == "__main__":
main()