/usr/lib/python2.7/dist-packages/glanceclient/common/utils.py is in python-glanceclient 1:0.12.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 | # Copyright 2012 OpenStack Foundation
# 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.
from __future__ import print_function
import errno
import os
import sys
import uuid
if os.name == 'nt':
import msvcrt
else:
msvcrt = None
import prettytable
from glanceclient import exc
from glanceclient.openstack.common import importutils
from glanceclient.openstack.common import strutils
# 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 schema_args(schema_getter, omit=[]):
typemap = {
'string': str,
'integer': int,
'boolean': string_to_bool,
'array': list
}
def _decorator(func):
schema = schema_getter()
if schema is None:
param = '<unavailable>'
kwargs = {
'help': ("Please run with connection parameters set to "
"retrieve the schema for generating help for this "
"command")
}
func.__dict__.setdefault('arguments', []).insert(0, ((param, ),
kwargs))
else:
properties = schema.get('properties', {})
for name, property in properties.iteritems():
if name in omit:
continue
param = '--' + name.replace('_', '-')
kwargs = {}
type_str = property.get('type', 'string')
if type_str == 'array':
items = property.get('items')
kwargs['type'] = typemap.get(items.get('type'))
kwargs['nargs'] = '+'
else:
kwargs['type'] = typemap.get(type_str)
if type_str == 'boolean':
kwargs['metavar'] = '[True|False]'
else:
kwargs['metavar'] = '<%s>' % name.upper()
description = property.get('description', "")
if 'enum' in property:
if len(description):
description += " "
description += ("Valid values: " +
', '.join(property.get('enum')))
kwargs['help'] = description
func.__dict__.setdefault('arguments',
[]).insert(0, ((param, ), kwargs))
return func
return _decorator
def pretty_choice_list(l):
return ', '.join("'%s'" % i for i in l)
def print_list(objs, fields, formatters={}):
pt = prettytable.PrettyTable([f for f in fields], caching=False)
pt.align = 'l'
for o in objs:
row = []
for field in fields:
if field in formatters:
row.append(formatters[field](o))
else:
field_name = field.lower().replace(' ', '_')
data = getattr(o, field_name, None) or ''
row.append(data)
pt.add_row(row)
print(strutils.safe_encode(pt.get_string()))
def print_dict(d):
pt = prettytable.PrettyTable(['Property', 'Value'], caching=False)
pt.align = 'l'
[pt.add_row(list(r)) for r in d.iteritems()]
print(strutils.safe_encode(pt.get_string(sortby='Property')))
def find_resource(manager, name_or_id):
"""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))
except exc.NotFound:
pass
# now try to get entity as uuid
try:
uuid.UUID(strutils.safe_encode(name_or_id))
return manager.get(name_or_id)
except (ValueError, exc.NotFound):
pass
# finally try to find entity by name
matches = list(manager.list(filters={'name': name_or_id}))
num_matches = len(matches)
if num_matches == 0:
msg = "No %s with a name or ID of '%s' exists." % \
(manager.resource_class.__name__.lower(), name_or_id)
raise exc.CommandError(msg)
elif num_matches > 1:
msg = ("Multiple %s matches found for '%s', use an ID to be more"
" specific." % (manager.resource_class.__name__.lower(),
name_or_id))
raise exc.CommandError(msg)
else:
return matches[0]
def skip_authentication(f):
"""Function decorator used to indicate a caller may be unauthenticated."""
f.require_authentication = False
return f
def is_authentication_required(f):
"""Checks to see if the function requires authentication.
Use the skip_authentication decorator to indicate a caller may
skip the authentication step.
"""
return getattr(f, 'require_authentication', True)
def string_to_bool(arg):
return arg.strip().lower() in ('t', 'true', 'yes', '1')
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, None)
if value:
return value
return kwargs.get('default', '')
def import_versioned_module(version, submodule=None):
module = 'glanceclient.v%s' % version
if submodule:
module = '.'.join((module, submodule))
return importutils.import_module(module)
def exit(msg=''):
if msg:
print(strutils.safe_encode(msg), file=sys.stderr)
sys.exit(1)
def save_image(data, path):
"""
Save an image to the specified path.
:param data: binary data of the image
:param path: path to save the image to
"""
if path is None:
image = sys.stdout
else:
image = open(path, 'wb')
try:
for chunk in data:
image.write(chunk)
finally:
if path is not None:
image.close()
def make_size_human_readable(size):
suffix = ['B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB']
base = 1024.0
index = 0
while size >= base:
index = index + 1
size = size / base
padded = '%.1f' % size
stripped = padded.rstrip('0').rstrip('.')
return '%s%s' % (stripped, suffix[index])
def getsockopt(self, *args, **kwargs):
"""
A function which allows us to monkey patch eventlet's
GreenSocket, adding a required 'getsockopt' method.
TODO: (mclaren) we can remove this once the eventlet fix
(https://bitbucket.org/eventlet/eventlet/commits/609f230)
lands in mainstream packages.
"""
return self.fd.getsockopt(*args, **kwargs)
def exception_to_str(exc):
try:
error = unicode(exc)
except UnicodeError:
try:
error = str(exc)
except UnicodeError:
error = ("Caught '%(exception)s' exception." %
{"exception": exc.__class__.__name__})
return strutils.safe_encode(error, errors='ignore')
def get_file_size(file_obj):
"""
Analyze file-like object and attempt to determine its size.
:param file_obj: file-like object.
:retval The file's size or None if it cannot be determined.
"""
if hasattr(file_obj, 'seek') and hasattr(file_obj, 'tell'):
try:
curr = file_obj.tell()
file_obj.seek(0, os.SEEK_END)
size = file_obj.tell()
file_obj.seek(curr)
return size
except IOError as e:
if e.errno == errno.ESPIPE:
# Illegal seek. This means the file object
# is a pipe (e.g the user is trying
# to pipe image data to the client,
# echo testdata | bin/glance add blah...), or
# that file object is empty, or that a file-like
# object which doesn't support 'seek/tell' has
# been supplied.
return
else:
raise
def get_data_file(args):
if args.file:
return open(args.file, 'rb')
else:
# distinguish cases where:
# (1) stdin is not valid (as in cron jobs):
# glance ... <&-
# (2) image data is provided through standard input:
# glance ... < /tmp/file or cat /tmp/file | glance ...
# (3) no image data provided:
# glance ...
try:
os.fstat(0)
except OSError:
# (1) stdin is not valid (closed...)
return None
if not sys.stdin.isatty():
# (2) image data is provided through standard input
if msvcrt:
msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
return sys.stdin
else:
# (3) no image data provided
return None
|