Update oslo incubator bits
* update gettextutils.py, strutils.py, install_venv_common.py * remove cfg.py, openstackkeyring oslo-incubator commit 630d3959b9d001ca18bd2ed1cf757f2eb44a336f Change-Id: I0ae9b9dc72ec88ed64a8c353b9c51734ee2cd24c
This commit is contained in:
Dean Troyer
parent
2958421755
commit
99cea54741
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@ -1,10 +1,8 @@
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[DEFAULT]
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# The list of modules to copy from openstack-common
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module=cfg
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module=iniparser
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module=install_venv_common
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module=openstackkeyring
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module=strutils
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# The base module to hold the copy of openstack.common
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File diff suppressed because it is too large
Load Diff
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@ -1,5 +1,3 @@
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Red Hat, Inc.
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# Copyright 2013 IBM Corp.
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# All Rights Reserved.
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@ -25,14 +23,12 @@ Usual usage in an openstack.common module:
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"""
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import copy
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import functools
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import gettext
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import logging
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import locale
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from logging import handlers
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import os
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import re
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try:
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import UserString as _userString
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except ImportError:
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import collections as _userString
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from babel import localedata
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import six
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@ -40,6 +36,17 @@ import six
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_localedir = os.environ.get('openstackclient'.upper() + '_LOCALEDIR')
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_t = gettext.translation('openstackclient', localedir=_localedir, fallback=True)
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# We use separate translation catalogs for each log level, so set up a
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# mapping between the log level name and the translator. The domain
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# for the log level is project_name + "-log-" + log_level so messages
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# for each level end up in their own catalog.
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_t_log_levels = dict(
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(level, gettext.translation('openstackclient' + '-log-' + level,
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localedir=_localedir,
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fallback=True))
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for level in ['info', 'warning', 'error', 'critical']
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)
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_AVAILABLE_LANGUAGES = {}
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USE_LAZY = False
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@ -58,13 +65,35 @@ def enable_lazy():
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def _(msg):
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if USE_LAZY:
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return Message(msg, 'openstackclient')
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return Message(msg, domain='openstackclient')
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else:
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if six.PY3:
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return _t.gettext(msg)
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return _t.ugettext(msg)
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def _log_translation(msg, level):
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"""Build a single translation of a log message
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"""
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if USE_LAZY:
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return Message(msg, domain='openstackclient' + '-log-' + level)
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else:
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translator = _t_log_levels[level]
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if six.PY3:
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return translator.gettext(msg)
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return translator.ugettext(msg)
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# Translators for log levels.
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#
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# The abbreviated names are meant to reflect the usual use of a short
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# name like '_'. The "L" is for "log" and the other letter comes from
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# the level.
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_LI = functools.partial(_log_translation, level='info')
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_LW = functools.partial(_log_translation, level='warning')
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_LE = functools.partial(_log_translation, level='error')
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_LC = functools.partial(_log_translation, level='critical')
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def install(domain, lazy=False):
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"""Install a _() function using the given translation domain.
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@ -90,11 +119,6 @@ def install(domain, lazy=False):
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# messages in OpenStack. We override the standard _() function
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# and % (format string) operation to build Message objects that can
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# later be translated when we have more information.
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#
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# Also included below is an example LocaleHandler that translates
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# Messages to an associated locale, effectively allowing many logs,
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# each with their own locale.
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def _lazy_gettext(msg):
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"""Create and return a Message object.
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@ -105,7 +129,7 @@ def install(domain, lazy=False):
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Message encapsulates a string so that we can translate
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it later when needed.
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"""
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return Message(msg, domain)
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return Message(msg, domain=domain)
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from six import moves
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moves.builtins.__dict__['_'] = _lazy_gettext
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@ -120,182 +144,169 @@ def install(domain, lazy=False):
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unicode=True)
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class Message(_userString.UserString, object):
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"""Class used to encapsulate translatable messages."""
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def __init__(self, msg, domain):
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# _msg is the gettext msgid and should never change
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self._msg = msg
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self._left_extra_msg = ''
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self._right_extra_msg = ''
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self._locale = None
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self.params = None
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self.domain = domain
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class Message(six.text_type):
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"""A Message object is a unicode object that can be translated.
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@property
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def data(self):
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# NOTE(mrodden): this should always resolve to a unicode string
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# that best represents the state of the message currently
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Translation of Message is done explicitly using the translate() method.
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For all non-translation intents and purposes, a Message is simply unicode,
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and can be treated as such.
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"""
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localedir = os.environ.get(self.domain.upper() + '_LOCALEDIR')
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if self.locale:
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lang = gettext.translation(self.domain,
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localedir=localedir,
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languages=[self.locale],
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fallback=True)
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else:
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# use system locale for translations
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lang = gettext.translation(self.domain,
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localedir=localedir,
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fallback=True)
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def __new__(cls, msgid, msgtext=None, params=None,
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domain='openstackclient', *args):
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"""Create a new Message object.
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In order for translation to work gettext requires a message ID, this
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msgid will be used as the base unicode text. It is also possible
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for the msgid and the base unicode text to be different by passing
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the msgtext parameter.
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"""
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# If the base msgtext is not given, we use the default translation
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# of the msgid (which is in English) just in case the system locale is
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# not English, so that the base text will be in that locale by default.
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if not msgtext:
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msgtext = Message._translate_msgid(msgid, domain)
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# We want to initialize the parent unicode with the actual object that
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# would have been plain unicode if 'Message' was not enabled.
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msg = super(Message, cls).__new__(cls, msgtext)
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msg.msgid = msgid
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msg.domain = domain
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msg.params = params
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return msg
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def translate(self, desired_locale=None):
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"""Translate this message to the desired locale.
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:param desired_locale: The desired locale to translate the message to,
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if no locale is provided the message will be
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translated to the system's default locale.
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:returns: the translated message in unicode
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"""
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translated_message = Message._translate_msgid(self.msgid,
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self.domain,
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desired_locale)
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if self.params is None:
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# No need for more translation
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return translated_message
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# This Message object may have been formatted with one or more
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# Message objects as substitution arguments, given either as a single
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# argument, part of a tuple, or as one or more values in a dictionary.
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# When translating this Message we need to translate those Messages too
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translated_params = _translate_args(self.params, desired_locale)
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translated_message = translated_message % translated_params
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return translated_message
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@staticmethod
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def _translate_msgid(msgid, domain, desired_locale=None):
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if not desired_locale:
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system_locale = locale.getdefaultlocale()
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# If the system locale is not available to the runtime use English
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if not system_locale[0]:
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desired_locale = 'en_US'
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else:
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desired_locale = system_locale[0]
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locale_dir = os.environ.get(domain.upper() + '_LOCALEDIR')
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lang = gettext.translation(domain,
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localedir=locale_dir,
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languages=[desired_locale],
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fallback=True)
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if six.PY3:
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ugettext = lang.gettext
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translator = lang.gettext
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else:
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ugettext = lang.ugettext
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translator = lang.ugettext
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full_msg = (self._left_extra_msg +
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ugettext(self._msg) +
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self._right_extra_msg)
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translated_message = translator(msgid)
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return translated_message
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if self.params is not None:
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full_msg = full_msg % self.params
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def __mod__(self, other):
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# When we mod a Message we want the actual operation to be performed
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# by the parent class (i.e. unicode()), the only thing we do here is
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# save the original msgid and the parameters in case of a translation
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params = self._sanitize_mod_params(other)
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unicode_mod = super(Message, self).__mod__(params)
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modded = Message(self.msgid,
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msgtext=unicode_mod,
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params=params,
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domain=self.domain)
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return modded
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return six.text_type(full_msg)
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def _sanitize_mod_params(self, other):
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"""Sanitize the object being modded with this Message.
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@property
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def locale(self):
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return self._locale
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- Add support for modding 'None' so translation supports it
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- Trim the modded object, which can be a large dictionary, to only
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those keys that would actually be used in a translation
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- Snapshot the object being modded, in case the message is
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translated, it will be used as it was when the Message was created
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"""
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if other is None:
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params = (other,)
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elif isinstance(other, dict):
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params = self._trim_dictionary_parameters(other)
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else:
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params = self._copy_param(other)
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return params
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@locale.setter
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def locale(self, value):
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self._locale = value
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if not self.params:
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return
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def _trim_dictionary_parameters(self, dict_param):
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"""Return a dict that only has matching entries in the msgid."""
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# NOTE(luisg): Here we trim down the dictionary passed as parameters
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# to avoid carrying a lot of unnecessary weight around in the message
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# object, for example if someone passes in Message() % locals() but
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# only some params are used, and additionally we prevent errors for
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# non-deepcopyable objects by unicoding() them.
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# This Message object may have been constructed with one or more
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# Message objects as substitution parameters, given as a single
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# Message, or a tuple or Map containing some, so when setting the
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# locale for this Message we need to set it for those Messages too.
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if isinstance(self.params, Message):
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self.params.locale = value
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return
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if isinstance(self.params, tuple):
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for param in self.params:
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if isinstance(param, Message):
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param.locale = value
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return
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if isinstance(self.params, dict):
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for param in self.params.values():
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if isinstance(param, Message):
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param.locale = value
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# Look for %(param) keys in msgid;
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# Skip %% and deal with the case where % is first character on the line
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keys = re.findall('(?:[^%]|^)?%\((\w*)\)[a-z]', self.msgid)
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def _save_dictionary_parameter(self, dict_param):
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full_msg = self.data
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# look for %(blah) fields in string;
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# ignore %% and deal with the
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# case where % is first character on the line
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keys = re.findall('(?:[^%]|^)?%\((\w*)\)[a-z]', full_msg)
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# if we don't find any %(blah) blocks but have a %s
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if not keys and re.findall('(?:[^%]|^)%[a-z]', full_msg):
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# apparently the full dictionary is the parameter
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params = copy.deepcopy(dict_param)
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# If we don't find any %(param) keys but have a %s
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if not keys and re.findall('(?:[^%]|^)%[a-z]', self.msgid):
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# Apparently the full dictionary is the parameter
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params = self._copy_param(dict_param)
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else:
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params = {}
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# Save our existing parameters as defaults to protect
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# ourselves from losing values if we are called through an
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# (erroneous) chain that builds a valid Message with
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# arguments, and then does something like "msg % kwds"
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# where kwds is an empty dictionary.
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src = {}
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if isinstance(self.params, dict):
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src.update(self.params)
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src.update(dict_param)
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for key in keys:
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try:
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params[key] = copy.deepcopy(dict_param[key])
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except TypeError:
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# cast uncopyable thing to unicode string
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params[key] = six.text_type(dict_param[key])
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params[key] = self._copy_param(src[key])
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return params
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def _save_parameters(self, other):
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# we check for None later to see if
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# we actually have parameters to inject,
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# so encapsulate if our parameter is actually None
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if other is None:
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self.params = (other, )
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elif isinstance(other, dict):
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self.params = self._save_dictionary_parameter(other)
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else:
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# fallback to casting to unicode,
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# this will handle the problematic python code-like
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# objects that cannot be deep-copied
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try:
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self.params = copy.deepcopy(other)
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except TypeError:
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self.params = six.text_type(other)
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def _copy_param(self, param):
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try:
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return copy.deepcopy(param)
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except TypeError:
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# Fallback to casting to unicode this will handle the
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# python code-like objects that can't be deep-copied
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return six.text_type(param)
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return self
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# overrides to be more string-like
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def __unicode__(self):
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return self.data
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def __str__(self):
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if six.PY3:
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return self.__unicode__()
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return self.data.encode('utf-8')
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def __getstate__(self):
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to_copy = ['_msg', '_right_extra_msg', '_left_extra_msg',
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'domain', 'params', '_locale']
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new_dict = self.__dict__.fromkeys(to_copy)
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for attr in to_copy:
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new_dict[attr] = copy.deepcopy(self.__dict__[attr])
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return new_dict
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def __setstate__(self, state):
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for (k, v) in state.items():
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setattr(self, k, v)
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# operator overloads
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def __add__(self, other):
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copied = copy.deepcopy(self)
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copied._right_extra_msg += other.__str__()
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return copied
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msg = _('Message objects do not support addition.')
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raise TypeError(msg)
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def __radd__(self, other):
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copied = copy.deepcopy(self)
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copied._left_extra_msg += other.__str__()
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return copied
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return self.__add__(other)
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def __mod__(self, other):
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# do a format string to catch and raise
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# any possible KeyErrors from missing parameters
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self.data % other
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copied = copy.deepcopy(self)
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return copied._save_parameters(other)
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def __mul__(self, other):
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return self.data * other
|
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|
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def __rmul__(self, other):
|
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return other * self.data
|
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|
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def __getitem__(self, key):
|
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return self.data[key]
|
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|
||||
def __getslice__(self, start, end):
|
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return self.data.__getslice__(start, end)
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|
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def __getattribute__(self, name):
|
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# NOTE(mrodden): handle lossy operations that we can't deal with yet
|
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# These override the UserString implementation, since UserString
|
||||
# uses our __class__ attribute to try and build a new message
|
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# after running the inner data string through the operation.
|
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# At that point, we have lost the gettext message id and can just
|
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# safely resolve to a string instead.
|
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ops = ['capitalize', 'center', 'decode', 'encode',
|
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'expandtabs', 'ljust', 'lstrip', 'replace', 'rjust', 'rstrip',
|
||||
'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill']
|
||||
if name in ops:
|
||||
return getattr(self.data, name)
|
||||
else:
|
||||
return _userString.UserString.__getattribute__(self, name)
|
||||
def __str__(self):
|
||||
# NOTE(luisg): Logging in python 2.6 tries to str() log records,
|
||||
# and it expects specifically a UnicodeError in order to proceed.
|
||||
msg = _('Message objects do not support str() because they may '
|
||||
'contain non-ascii characters. '
|
||||
'Please use unicode() or translate() instead.')
|
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raise UnicodeError(msg)
|
||||
|
||||
|
||||
def get_available_languages(domain):
|
||||
|
|
@ -317,49 +328,147 @@ def get_available_languages(domain):
|
|||
# NOTE(luisg): Babel <1.0 used a function called list(), which was
|
||||
# renamed to locale_identifiers() in >=1.0, the requirements master list
|
||||
# requires >=0.9.6, uncapped, so defensively work with both. We can remove
|
||||
# this check when the master list updates to >=1.0, and all projects udpate
|
||||
# this check when the master list updates to >=1.0, and update all projects
|
||||
list_identifiers = (getattr(localedata, 'list', None) or
|
||||
getattr(localedata, 'locale_identifiers'))
|
||||
locale_identifiers = list_identifiers()
|
||||
|
||||
for i in locale_identifiers:
|
||||
if find(i) is not None:
|
||||
language_list.append(i)
|
||||
|
||||
# NOTE(luisg): Babel>=1.0,<1.3 has a bug where some OpenStack supported
|
||||
# locales (e.g. 'zh_CN', and 'zh_TW') aren't supported even though they
|
||||
# are perfectly legitimate locales:
|
||||
# https://github.com/mitsuhiko/babel/issues/37
|
||||
# In Babel 1.3 they fixed the bug and they support these locales, but
|
||||
# they are still not explicitly "listed" by locale_identifiers().
|
||||
# That is why we add the locales here explicitly if necessary so that
|
||||
# they are listed as supported.
|
||||
aliases = {'zh': 'zh_CN',
|
||||
'zh_Hant_HK': 'zh_HK',
|
||||
'zh_Hant': 'zh_TW',
|
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'fil': 'tl_PH'}
|
||||
for (locale, alias) in six.iteritems(aliases):
|
||||
if locale in language_list and alias not in language_list:
|
||||
language_list.append(alias)
|
||||
|
||||
_AVAILABLE_LANGUAGES[domain] = language_list
|
||||
return copy.copy(language_list)
|
||||
|
||||
|
||||
def get_localized_message(message, user_locale):
|
||||
"""Gets a localized version of the given message in the given locale."""
|
||||
def translate(obj, desired_locale=None):
|
||||
"""Gets the translated unicode representation of the given object.
|
||||
|
||||
If the object is not translatable it is returned as-is.
|
||||
If the locale is None the object is translated to the system locale.
|
||||
|
||||
:param obj: the object to translate
|
||||
:param desired_locale: the locale to translate the message to, if None the
|
||||
default system locale will be used
|
||||
:returns: the translated object in unicode, or the original object if
|
||||
it could not be translated
|
||||
"""
|
||||
message = obj
|
||||
if not isinstance(message, Message):
|
||||
# If the object to translate is not already translatable,
|
||||
# let's first get its unicode representation
|
||||
message = six.text_type(obj)
|
||||
if isinstance(message, Message):
|
||||
if user_locale:
|
||||
message.locale = user_locale
|
||||
return six.text_type(message)
|
||||
else:
|
||||
return message
|
||||
# Even after unicoding() we still need to check if we are
|
||||
# running with translatable unicode before translating
|
||||
return message.translate(desired_locale)
|
||||
return obj
|
||||
|
||||
|
||||
class LocaleHandler(logging.Handler):
|
||||
"""Handler that can have a locale associated to translate Messages.
|
||||
def _translate_args(args, desired_locale=None):
|
||||
"""Translates all the translatable elements of the given arguments object.
|
||||
|
||||
A quick example of how to utilize the Message class above.
|
||||
LocaleHandler takes a locale and a target logging.Handler object
|
||||
to forward LogRecord objects to after translating the internal Message.
|
||||
This method is used for translating the translatable values in method
|
||||
arguments which include values of tuples or dictionaries.
|
||||
If the object is not a tuple or a dictionary the object itself is
|
||||
translated if it is translatable.
|
||||
|
||||
If the locale is None the object is translated to the system locale.
|
||||
|
||||
:param args: the args to translate
|
||||
:param desired_locale: the locale to translate the args to, if None the
|
||||
default system locale will be used
|
||||
:returns: a new args object with the translated contents of the original
|
||||
"""
|
||||
if isinstance(args, tuple):
|
||||
return tuple(translate(v, desired_locale) for v in args)
|
||||
if isinstance(args, dict):
|
||||
translated_dict = {}
|
||||
for (k, v) in six.iteritems(args):
|
||||
translated_v = translate(v, desired_locale)
|
||||
translated_dict[k] = translated_v
|
||||
return translated_dict
|
||||
return translate(args, desired_locale)
|
||||
|
||||
|
||||
class TranslationHandler(handlers.MemoryHandler):
|
||||
"""Handler that translates records before logging them.
|
||||
|
||||
The TranslationHandler takes a locale and a target logging.Handler object
|
||||
to forward LogRecord objects to after translating them. This handler
|
||||
depends on Message objects being logged, instead of regular strings.
|
||||
|
||||
The handler can be configured declaratively in the logging.conf as follows:
|
||||
|
||||
[handlers]
|
||||
keys = translatedlog, translator
|
||||
|
||||
[handler_translatedlog]
|
||||
class = handlers.WatchedFileHandler
|
||||
args = ('/var/log/api-localized.log',)
|
||||
formatter = context
|
||||
|
||||
[handler_translator]
|
||||
class = openstack.common.log.TranslationHandler
|
||||
target = translatedlog
|
||||
args = ('zh_CN',)
|
||||
|
||||
If the specified locale is not available in the system, the handler will
|
||||
log in the default locale.
|
||||
"""
|
||||
|
||||
def __init__(self, locale, target):
|
||||
"""Initialize a LocaleHandler
|
||||
def __init__(self, locale=None, target=None):
|
||||
"""Initialize a TranslationHandler
|
||||
|
||||
:param locale: locale to use for translating messages
|
||||
:param target: logging.Handler object to forward
|
||||
LogRecord objects to after translation
|
||||
"""
|
||||
logging.Handler.__init__(self)
|
||||
# NOTE(luisg): In order to allow this handler to be a wrapper for
|
||||
# other handlers, such as a FileHandler, and still be able to
|
||||
# configure it using logging.conf, this handler has to extend
|
||||
# MemoryHandler because only the MemoryHandlers' logging.conf
|
||||
# parsing is implemented such that it accepts a target handler.
|
||||
handlers.MemoryHandler.__init__(self, capacity=0, target=target)
|
||||
self.locale = locale
|
||||
self.target = target
|
||||
|
||||
def setFormatter(self, fmt):
|
||||
self.target.setFormatter(fmt)
|
||||
|
||||
def emit(self, record):
|
||||
if isinstance(record.msg, Message):
|
||||
# set the locale and resolve to a string
|
||||
record.msg.locale = self.locale
|
||||
# We save the message from the original record to restore it
|
||||
# after translation, so other handlers are not affected by this
|
||||
original_msg = record.msg
|
||||
original_args = record.args
|
||||
|
||||
try:
|
||||
self._translate_and_log_record(record)
|
||||
finally:
|
||||
record.msg = original_msg
|
||||
record.args = original_args
|
||||
|
||||
def _translate_and_log_record(self, record):
|
||||
record.msg = translate(record.msg, self.locale)
|
||||
|
||||
# In addition to translating the message, we also need to translate
|
||||
# arguments that were passed to the log method that were not part
|
||||
# of the main message e.g., log.info(_('Some message %s'), this_one))
|
||||
record.args = _translate_args(record.args, self.locale)
|
||||
|
||||
self.target.emit(record)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,3 @@
|
|||
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
||||
|
||||
# Copyright 2011 OpenStack Foundation.
|
||||
# All Rights Reserved.
|
||||
#
|
||||
|
|
@ -19,25 +17,31 @@
|
|||
System-level utilities and helper functions.
|
||||
"""
|
||||
|
||||
import math
|
||||
import re
|
||||
import sys
|
||||
import unicodedata
|
||||
|
||||
import six
|
||||
|
||||
from openstackclient.openstack.common.gettextutils import _ # noqa
|
||||
from openstackclient.openstack.common.gettextutils import _
|
||||
|
||||
|
||||
# Used for looking up extensions of text
|
||||
# to their 'multiplied' byte amount
|
||||
BYTE_MULTIPLIERS = {
|
||||
'': 1,
|
||||
't': 1024 ** 4,
|
||||
'g': 1024 ** 3,
|
||||
'm': 1024 ** 2,
|
||||
'k': 1024,
|
||||
UNIT_PREFIX_EXPONENT = {
|
||||
'k': 1,
|
||||
'K': 1,
|
||||
'Ki': 1,
|
||||
'M': 2,
|
||||
'Mi': 2,
|
||||
'G': 3,
|
||||
'Gi': 3,
|
||||
'T': 4,
|
||||
'Ti': 4,
|
||||
}
|
||||
UNIT_SYSTEM_INFO = {
|
||||
'IEC': (1024, re.compile(r'(^[-+]?\d*\.?\d+)([KMGT]i?)?(b|bit|B)$')),
|
||||
'SI': (1000, re.compile(r'(^[-+]?\d*\.?\d+)([kMGT])?(b|bit|B)$')),
|
||||
}
|
||||
BYTE_REGEX = re.compile(r'(^-?\d+)(\D*)')
|
||||
|
||||
TRUE_STRINGS = ('1', 't', 'true', 'on', 'y', 'yes')
|
||||
FALSE_STRINGS = ('0', 'f', 'false', 'off', 'n', 'no')
|
||||
|
|
@ -60,12 +64,12 @@ def int_from_bool_as_string(subject):
|
|||
return bool_from_string(subject) and 1 or 0
|
||||
|
||||
|
||||
def bool_from_string(subject, strict=False):
|
||||
def bool_from_string(subject, strict=False, default=False):
|
||||
"""Interpret a string as a boolean.
|
||||
|
||||
A case-insensitive match is performed such that strings matching 't',
|
||||
'true', 'on', 'y', 'yes', or '1' are considered True and, when
|
||||
`strict=False`, anything else is considered False.
|
||||
`strict=False`, anything else returns the value specified by 'default'.
|
||||
|
||||
Useful for JSON-decoded stuff and config file parsing.
|
||||
|
||||
|
|
@ -90,7 +94,7 @@ def bool_from_string(subject, strict=False):
|
|||
'acceptable': acceptable}
|
||||
raise ValueError(msg)
|
||||
else:
|
||||
return False
|
||||
return default
|
||||
|
||||
|
||||
def safe_decode(text, incoming=None, errors='strict'):
|
||||
|
|
@ -101,7 +105,7 @@ def safe_decode(text, incoming=None, errors='strict'):
|
|||
values http://docs.python.org/2/library/codecs.html
|
||||
:returns: text or a unicode `incoming` encoded
|
||||
representation of it.
|
||||
:raises TypeError: If text is not an isntance of str
|
||||
:raises TypeError: If text is not an instance of str
|
||||
"""
|
||||
if not isinstance(text, six.string_types):
|
||||
raise TypeError("%s can't be decoded" % type(text))
|
||||
|
|
@ -144,7 +148,7 @@ def safe_encode(text, incoming=None,
|
|||
values http://docs.python.org/2/library/codecs.html
|
||||
:returns: text or a bytestring `encoding` encoded
|
||||
representation of it.
|
||||
:raises TypeError: If text is not an isntance of str
|
||||
:raises TypeError: If text is not an instance of str
|
||||
"""
|
||||
if not isinstance(text, six.string_types):
|
||||
raise TypeError("%s can't be encoded" % type(text))
|
||||
|
|
@ -154,43 +158,65 @@ def safe_encode(text, incoming=None,
|
|||
sys.getdefaultencoding())
|
||||
|
||||
if isinstance(text, six.text_type):
|
||||
return text.encode(encoding, errors)
|
||||
if six.PY3:
|
||||
return text.encode(encoding, errors).decode(incoming)
|
||||
else:
|
||||
return text.encode(encoding, errors)
|
||||
elif text and encoding != incoming:
|
||||
# Decode text before encoding it with `encoding`
|
||||
text = safe_decode(text, incoming, errors)
|
||||
return text.encode(encoding, errors)
|
||||
if six.PY3:
|
||||
return text.encode(encoding, errors).decode(incoming)
|
||||
else:
|
||||
return text.encode(encoding, errors)
|
||||
|
||||
return text
|
||||
|
||||
|
||||
def to_bytes(text, default=0):
|
||||
"""Converts a string into an integer of bytes.
|
||||
def string_to_bytes(text, unit_system='IEC', return_int=False):
|
||||
"""Converts a string into an float representation of bytes.
|
||||
|
||||
Looks at the last characters of the text to determine
|
||||
what conversion is needed to turn the input text into a byte number.
|
||||
Supports "B, K(B), M(B), G(B), and T(B)". (case insensitive)
|
||||
The units supported for IEC ::
|
||||
|
||||
Kb(it), Kib(it), Mb(it), Mib(it), Gb(it), Gib(it), Tb(it), Tib(it)
|
||||
KB, KiB, MB, MiB, GB, GiB, TB, TiB
|
||||
|
||||
The units supported for SI ::
|
||||
|
||||
kb(it), Mb(it), Gb(it), Tb(it)
|
||||
kB, MB, GB, TB
|
||||
|
||||
Note that the SI unit system does not support capital letter 'K'
|
||||
|
||||
:param text: String input for bytes size conversion.
|
||||
:param default: Default return value when text is blank.
|
||||
:param unit_system: Unit system for byte size conversion.
|
||||
:param return_int: If True, returns integer representation of text
|
||||
in bytes. (default: decimal)
|
||||
:returns: Numerical representation of text in bytes.
|
||||
:raises ValueError: If text has an invalid value.
|
||||
|
||||
"""
|
||||
match = BYTE_REGEX.search(text)
|
||||
try:
|
||||
base, reg_ex = UNIT_SYSTEM_INFO[unit_system]
|
||||
except KeyError:
|
||||
msg = _('Invalid unit system: "%s"') % unit_system
|
||||
raise ValueError(msg)
|
||||
match = reg_ex.match(text)
|
||||
if match:
|
||||
magnitude = int(match.group(1))
|
||||
mult_key_org = match.group(2)
|
||||
if not mult_key_org:
|
||||
return magnitude
|
||||
elif text:
|
||||
msg = _('Invalid string format: %s') % text
|
||||
raise TypeError(msg)
|
||||
magnitude = float(match.group(1))
|
||||
unit_prefix = match.group(2)
|
||||
if match.group(3) in ['b', 'bit']:
|
||||
magnitude /= 8
|
||||
else:
|
||||
return default
|
||||
mult_key = mult_key_org.lower().replace('b', '', 1)
|
||||
multiplier = BYTE_MULTIPLIERS.get(mult_key)
|
||||
if multiplier is None:
|
||||
msg = _('Unknown byte multiplier: %s') % mult_key_org
|
||||
raise TypeError(msg)
|
||||
return magnitude * multiplier
|
||||
msg = _('Invalid string format: %s') % text
|
||||
raise ValueError(msg)
|
||||
if not unit_prefix:
|
||||
res = magnitude
|
||||
else:
|
||||
res = magnitude * pow(base, UNIT_PREFIX_EXPONENT[unit_prefix])
|
||||
if return_int:
|
||||
return int(math.ceil(res))
|
||||
return res
|
||||
|
||||
|
||||
def to_slug(value, incoming=None, errors="strict"):
|
||||
|
|
|
|||
|
|
@ -1,5 +1,3 @@
|
|||
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
||||
|
||||
# Copyright 2013 OpenStack Foundation
|
||||
# Copyright 2013 IBM Corp.
|
||||
#
|
||||
|
|
|
|||
Loading…
Reference in New Issue