mirror of
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cad09500d3
Summary: Previously, i18n are initialized at module import time, and cannot be reinitialized if HGPLAIN is changed. That makes chg server has to hash HGPLAIN, and use different servers if HGPLAIN is set. Change i18n to be only initialized at `dispatch._dispatch` time, after chg server updating environment variables. So a same chg server could serve different languages or encodings. Reviewed By: singhsrb Differential Revision: D7845334 fbshipit-source-id: 6fba19cc07efdfa60a0e328cf2cc981cfed4bcc8
121 lines
3.9 KiB
Python
121 lines
3.9 KiB
Python
# i18n.py - internationalization support for mercurial
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#
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# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import gettext as gettextmod
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import locale
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import os
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import sys
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from . import (
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encoding,
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pycompat,
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)
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# modelled after templater.templatepath:
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if getattr(sys, 'frozen', None) is not None:
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module = pycompat.sysexecutable
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else:
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module = pycompat.fsencode(__file__)
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try:
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unicode
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except NameError:
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unicode = str
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_languages = None
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if (pycompat.iswindows
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and 'LANGUAGE' not in encoding.environ
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and 'LC_ALL' not in encoding.environ
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and 'LC_MESSAGES' not in encoding.environ
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and 'LANG' not in encoding.environ):
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# Try to detect UI language by "User Interface Language Management" API
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# if no locale variables are set. Note that locale.getdefaultlocale()
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# uses GetLocaleInfo(), which may be different from UI language.
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# (See http://msdn.microsoft.com/en-us/library/dd374098(v=VS.85).aspx )
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try:
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import ctypes
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langid = ctypes.windll.kernel32.GetUserDefaultUILanguage()
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_languages = [locale.windows_locale[langid]]
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except (ImportError, AttributeError, KeyError):
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# ctypes not found or unknown langid
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pass
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_ugettext = None
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def setdatapath(datapath):
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datapath = pycompat.fsdecode(datapath)
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localedir = os.path.join(datapath, pycompat.sysstr('locale'))
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t = gettextmod.translation('hg', localedir, _languages, fallback=True)
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global _ugettext
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try:
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_ugettext = t.ugettext
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except AttributeError:
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_ugettext = t.gettext
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_msgcache = {} # encoding: {message: translation}
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def gettext(message):
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"""Translate message.
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The message is looked up in the catalog to get a Unicode string,
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which is encoded in the local encoding before being returned.
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Important: message is restricted to characters in the encoding
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given by sys.getdefaultencoding() which is most likely 'ascii'.
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"""
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# If message is None, t.ugettext will return u'None' as the
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# translation whereas our callers expect us to return None.
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if message is None or not _ugettext:
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return message
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cache = _msgcache.setdefault(encoding.encoding, {})
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if message not in cache:
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if type(message) is unicode:
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# goofy unicode docstrings in test
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paragraphs = message.split(u'\n\n')
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else:
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paragraphs = [p.decode("ascii") for p in message.split('\n\n')]
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# Be careful not to translate the empty string -- it holds the
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# meta data of the .po file.
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u = u'\n\n'.join([p and _ugettext(p) or u'' for p in paragraphs])
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try:
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# encoding.tolocal cannot be used since it will first try to
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# decode the Unicode string. Calling u.decode(enc) really
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# means u.encode(sys.getdefaultencoding()).decode(enc). Since
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# the Python encoding defaults to 'ascii', this fails if the
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# translated string use non-ASCII characters.
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encodingstr = pycompat.sysstr(encoding.encoding)
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cache[message] = u.encode(encodingstr, "replace")
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except LookupError:
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# An unknown encoding results in a LookupError.
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cache[message] = message
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return cache[message]
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_plain = True
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def _getplain():
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if ('HGPLAIN' not in encoding.environ
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and 'HGPLAINEXCEPT' not in encoding.environ):
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return False
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exceptions = encoding.environ.get('HGPLAINEXCEPT', '').strip().split(',')
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return 'i18n' not in exceptions
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def _(message):
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if _plain:
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return message
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else:
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return gettext(message)
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def init():
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"""inline _plain() so it's faster. called by dispatch._dispatch"""
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global _encoding, _plain
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_encoding = encoding.encoding
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_plain = _getplain()
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_msgcache.clear()
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