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# 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.
from __future__ import print_function
import os
import sys
import six
import uuid
from oslo_serialization import jsonutils
from oslo_utils import encodeutils
import prettytable
from karborclient.common.apiclient import exceptions
# Decorator for cli-args
def arg(*args, **kwargs):
def _decorator(func):
# Because of the sematics of decorator composition if we just append
# to the options list positional options will appear to be backwards.
func.__dict__.setdefault('arguments', []).insert(0, (args, kwargs))
return func
return _decorator
def env(*vars, **kwargs):
"""Search for the first defined of possibly many env vars
Returns the first environment variable defined in vars, or
returns the default defined in kwargs.
"""
for v in vars:
value = os.environ.get(v)
if value:
return value
return kwargs.get('default', '')
def _print(pt, order):
if sys.version_info >= (3, 0):
print(pt.get_string(sortby=order))
else:
print(encodeutils.safe_encode(pt.get_string(sortby=order)))
def print_list(objs, fields, exclude_unavailable=False, formatters=None,
sortby_index=0):
'''Prints a list of objects.
@param objs: Objects to print
@param fields: Fields on each object to be printed
@param exclude_unavailable: Boolean to decide if unavailable fields are
removed
@param formatters: Custom field formatters
@param sortby_index: Results sorted against the key in the fields list at
this index; if None then the object order is not
altered
'''
formatters = formatters or {}
mixed_case_fields = ['serverId']
removed_fields = []
rows = []
for o in objs:
row = []
for field in fields:
if field in removed_fields:
continue
if field in formatters:
row.append(formatters[field](o))
else:
if field in mixed_case_fields:
field_name = field.replace(' ', '_')
else:
field_name = field.lower().replace(' ', '_')
if type(o) == dict and field in o:
data = o[field]
else:
if not hasattr(o, field_name) and exclude_unavailable:
removed_fields.append(field)
continue
else:
data = getattr(o, field_name, '')
if data is None:
data = '-'
if isinstance(data, six.string_types) and "\r" in data:
data = data.replace("\r", " ")
row.append(data)
rows.append(row)
for f in removed_fields:
fields.remove(f)
pt = prettytable.PrettyTable((f for f in fields), caching=False)
pt.align = 'l'
for row in rows:
pt.add_row(row)
if sortby_index is None:
order_by = None
else:
order_by = fields[sortby_index]
_print(pt, order_by)
def print_dict(d, property="Property", dict_format_list=None,
json_format_list=None):
pt = prettytable.PrettyTable([property, 'Value'], caching=False)
pt.align = 'l'
for r in d.items():
r = list(r)
if isinstance(r[1], six.string_types) and "\r" in r[1]:
r[1] = r[1].replace("\r", " ")
if dict_format_list is not None and r[0] in dict_format_list:
r[1] = dict_prettyprint(r[1])
if json_format_list is not None and r[0] in json_format_list:
r[1] = json_prettyprint(r[1])
pt.add_row(r)
_print(pt, property)
def dict_prettyprint(val):
"""dict pretty print formatter.
:param val: dict.
:return: formatted json string.
"""
return jsonutils.dumps(val, indent=2, sort_keys=True)
def json_prettyprint(val):
"""json pretty print formatter.
:param val: json string.
:return: formatted json string.
"""
return val and jsonutils.dumps(jsonutils.loads(val),
indent=2, sort_keys=True)
def find_resource(manager, name_or_id, *args, **kwargs):
"""Helper for the _find_* methods."""
# first try to get entity as integer id
try:
if isinstance(name_or_id, int) or name_or_id.isdigit():
return manager.get(int(name_or_id), *args, **kwargs)
except exceptions.NotFound:
pass
# now try to get entity as uuid
try:
uuid.UUID(str(name_or_id))
return manager.get(name_or_id, *args, **kwargs)
except (ValueError, exceptions.NotFound):
pass
# finally try to find entity by name
try:
return manager.find(name=name_or_id)
except exceptions.NotFound:
msg = "No %s with a name or ID of '%s' exists." % \
(manager.resource_class.__name__.lower(), name_or_id)
raise exceptions.CommandError(msg)
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