120 lines
3.5 KiB
Python
120 lines
3.5 KiB
Python
# Copyright 2012 OpenStack LLC.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import sys
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import uuid
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import os
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from muranoclient.common import exceptions
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import prettytable
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from muranoclient.openstack.common import importutils
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# Decorator for cli-args
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def arg(*args, **kwargs):
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def _decorator(func):
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# Because of the sematics of decorator composition if we just append
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# to the options list positional options will appear to be backwards.
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func.__dict__.setdefault('arguments', []).insert(0, (args, kwargs))
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return func
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return _decorator
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def pretty_choice_list(l):
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return ', '.join("'%s'" % i for i in l)
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def print_list(objs, fields, field_labels, formatters={}, sortby=0):
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pt = prettytable.PrettyTable([f for f in field_labels], caching=False)
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pt.align = 'l'
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for o in objs:
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row = []
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for field in fields:
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if field in formatters:
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row.append(formatters[field](o))
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else:
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data = getattr(o, field, None) or ''
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row.append(data)
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pt.add_row(row)
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print pt.get_string(sortby=field_labels[sortby])
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def print_dict(d, formatters={}):
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pt = prettytable.PrettyTable(['Property', 'Value'], caching=False)
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pt.align = 'l'
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for field in d.keys():
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if field in formatters:
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pt.add_row([field, formatters[field](d[field])])
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else:
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pt.add_row([field, d[field]])
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print pt.get_string(sortby='Property')
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def find_resource(manager, name_or_id):
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"""Helper for the _find_* methods."""
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# first try to get entity as integer id
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try:
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if isinstance(name_or_id, int) or name_or_id.isdigit():
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return manager.get(int(name_or_id))
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except exceptions.NotFound:
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pass
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# now try to get entity as uuid
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try:
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uuid.UUID(str(name_or_id))
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return manager.get(name_or_id)
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except (ValueError, exceptions.NotFound):
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pass
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# finally try to find entity by name
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try:
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return manager.find(name=name_or_id)
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except exceptions.NotFound:
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msg = "No %s with a name or ID of '%s' exists." % \
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(manager.resource_class.__name__.lower(), name_or_id)
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raise exceptions.CommandError(msg)
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def string_to_bool(arg):
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return arg.strip().lower() in ('t', 'true', 'yes', '1')
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def env(*vars, **kwargs):
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"""Search for the first defined of possibly many env vars
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Returns the first environment variable defined in vars, or
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returns the default defined in kwargs.
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"""
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for v in vars:
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value = os.environ.get(v, None)
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if value:
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return value
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return kwargs.get('default', '')
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def import_versioned_module(version, submodule=None):
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module = 'muranoclient.v%s' % version
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if submodule:
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module = '.'.join((module, submodule))
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return importutils.import_module(module)
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def exit(msg=''):
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if msg:
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print >> sys.stderr, msg
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sys.exit(1)
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