Mercurial > hg
view mercurial/i18n.py @ 30832:da5fa0f13a41
ui: introduce an experimental dict of exportable environment variables
Care needs to be taken to prevent leaking potentially sensitive environment
variables through hgweb, if template support for environment variables is to be
introduced. There are a few ideas about the API for preventing accidental
leaking [1]. Option 3 seems best from the POV of not needing to configure
anything in the normal case. I couldn't figure out how to do that, so guard it
with an experimental option for now.
[1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-January/092383.html
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Tue, 17 Jan 2017 23:05:12 -0500 |
parents | 10b17ed9b591 |
children | 2912b06905dc |
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# i18n.py - internationalization support for mercurial # # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import import gettext as gettextmod import locale import os import sys from . import ( encoding, pycompat, ) # modelled after templater.templatepath: if getattr(sys, 'frozen', None) is not None: module = pycompat.sysexecutable else: module = __file__ try: unicode except NameError: unicode = str _languages = None if (pycompat.osname == 'nt' and 'LANGUAGE' not in encoding.environ and 'LC_ALL' not in encoding.environ and 'LC_MESSAGES' not in encoding.environ and 'LANG' not in encoding.environ): # Try to detect UI language by "User Interface Language Management" API # if no locale variables are set. Note that locale.getdefaultlocale() # uses GetLocaleInfo(), which may be different from UI language. # (See http://msdn.microsoft.com/en-us/library/dd374098(v=VS.85).aspx ) try: import ctypes langid = ctypes.windll.kernel32.GetUserDefaultUILanguage() _languages = [locale.windows_locale[langid]] except (ImportError, AttributeError, KeyError): # ctypes not found or unknown langid pass _ugettext = None def setdatapath(datapath): datapath = pycompat.fsdecode(datapath) localedir = os.path.join(datapath, pycompat.sysstr('locale')) t = gettextmod.translation('hg', localedir, _languages, fallback=True) global _ugettext try: _ugettext = t.ugettext except AttributeError: _ugettext = t.gettext _msgcache = {} def gettext(message): """Translate message. The message is looked up in the catalog to get a Unicode string, which is encoded in the local encoding before being returned. Important: message is restricted to characters in the encoding given by sys.getdefaultencoding() which is most likely 'ascii'. """ # If message is None, t.ugettext will return u'None' as the # translation whereas our callers expect us to return None. if message is None or not _ugettext: return message if message not in _msgcache: if type(message) is unicode: # goofy unicode docstrings in test paragraphs = message.split(u'\n\n') else: paragraphs = [p.decode("ascii") for p in message.split('\n\n')] # Be careful not to translate the empty string -- it holds the # meta data of the .po file. u = u'\n\n'.join([p and _ugettext(p) or u'' for p in paragraphs]) try: # encoding.tolocal cannot be used since it will first try to # decode the Unicode string. Calling u.decode(enc) really # means u.encode(sys.getdefaultencoding()).decode(enc). Since # the Python encoding defaults to 'ascii', this fails if the # translated string use non-ASCII characters. encodingstr = pycompat.sysstr(encoding.encoding) _msgcache[message] = u.encode(encodingstr, "replace") except LookupError: # An unknown encoding results in a LookupError. _msgcache[message] = message return _msgcache[message] def _plain(): if ('HGPLAIN' not in encoding.environ and 'HGPLAINEXCEPT' not in encoding.environ): return False exceptions = encoding.environ.get('HGPLAINEXCEPT', '').strip().split(',') return 'i18n' not in exceptions if _plain(): _ = lambda message: message else: _ = gettext