Mercurial > hg
view mercurial/i18n.py @ 37558:8a73132214a3
httppeer: support protocol upgrade
With the new handshake defined and in place on the server, we can
now implement it on the client.
The HTTP handshake mechanism has been taught to add headers advertising
its support for the new capabilities response. Response handling
has been adjusted to allow CBOR responses through. And makepeer()
has been taught to instantiate a mutually supported peer.
The HTTPv2 peer class doesn't implement the full peer interface. So
HTTPv2 is not yet usable as a peer.
Like the server side, we support registering handlers for
different API services. This allows extensions to easily implement
API services and peers. A practical use case for this is to
provide a previous implementation of the experimental version 2
wire protocol to a future version of Mercurial. We know there will
be BC breaks after 4.6 ships. But someone could take the peer and
server code from 4.6, drop it in an extension, and allow its use
indefinitely.
Differential Revision: https://phab.mercurial-scm.org/D3243
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Tue, 10 Apr 2018 18:16:47 -0700 |
parents | 5bc7ff103081 |
children | 79dd61a4554f |
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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 = pycompat.fsencode(__file__) try: unicode except NameError: unicode = str _languages = None if (pycompat.iswindows 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, r'locale') t = gettextmod.translation(r'hg', localedir, _languages, fallback=True) global _ugettext try: _ugettext = t.ugettext except AttributeError: _ugettext = t.gettext _msgcache = {} # encoding: {message: translation} 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 cache = _msgcache.setdefault(encoding.encoding, {}) if message not in cache: 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) cache[message] = u.encode(encodingstr, "replace") except LookupError: # An unknown encoding results in a LookupError. cache[message] = message return cache[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