281 lines
9.6 KiB
Python
281 lines
9.6 KiB
Python
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#
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# language.py: install data component that stores information about both
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# installer runtime language choice and installed system
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# language support.
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#
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# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009 Red Hat, Inc.
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import os
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import string
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import locale
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import gettext
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from simpleconfig import SimpleConfigFile
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import system_config_keyboard.keyboard as keyboard
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import logging
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log = logging.getLogger("anaconda")
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# Converts a single language into a "language search path". For example,
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# fr_FR.utf8@euro would become "fr_FR.utf8@eueo fr_FR.utf8 fr_FR fr"
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def expandLangs(astring):
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langs = [astring]
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charset = None
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base = None
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# remove charset ...
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if '.' in astring:
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langs.append(string.split(astring, '.')[0])
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if '@' in astring:
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charset = string.split(astring, '@')[1]
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if '_' in astring:
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base = string.split(astring, '_')[0]
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if charset:
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langs.append("%s@%s" % (base, charset))
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langs.append(base)
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else:
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langs.append(astring[:2])
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return langs
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class Language(object):
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def _setInstLang(self, value):
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# Always store in its full form so we know what we're comparing with.
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try:
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self._instLang = self._canonLang(value)
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except ValueError:
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# If the language isn't listed in lang-table, we won't know what
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# keyboard/font/etc. to use. However, we can still set the $LANG
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# to that and make sure it works in the installed system.
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self._instLang = value
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# If we're running in text mode, value may not be a supported language
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# to display. We need to default to en_US.UTF-8 for now.
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if self.displayMode == 't':
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for (lang, info) in self.localeInfo.iteritems():
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# If there's no font, it's not a supported language.
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if lang == self._instLang and info[2] == "none":
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self._instLang = self._default
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break
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# Now set some things to make sure the language setting takes effect
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# right now.
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os.environ["LANG"] = self._instLang
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os.environ["LC_NUMERIC"] = "C"
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try:
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locale.setlocale(locale.LC_ALL, "")
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except locale.Error:
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pass
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# XXX: oh ick. this is the sort of thing which you should never do...
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# but we switch languages at runtime and thus need to invalidate
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# the set of languages/mofiles which gettext knows about
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gettext._translations = {}
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def _getInstLang(self):
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# If we were given a language that's not in lang-table, lie and say
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# we're using the default. This prevents us from having to check all
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# over the place. Unfortunately, it also means anaconda will be
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# running with the wrong font and keyboard in these cases.
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if self._instLang in self.localeInfo.keys():
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return self._instLang
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else:
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return self._default
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# The language being displayed while anaconda is running.
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instLang = property(lambda s: s._getInstLang(), lambda s, v: s._setInstLang(v))
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def _setSystemLang(self, value):
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# Always store in its full form so we know what we're comparing with.
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try:
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self._systemLang = self._canonLang(value)
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except ValueError:
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# If the language isn't listed in lang-table, we won't know what
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# keyboard/font/etc. to use. However, we can still set the $LANG
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# to that and make sure it works in the installed system.
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self._systemLang = value
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# Now set a bunch of other things that'll get written to
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# /etc/sysconfig/i18n on the installed system.
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self.info["LANG"] = self._systemLang
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if not self.localeInfo.has_key(self._systemLang):
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return
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if self.localeInfo[self._systemLang][2] == "none":
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self.info["SYSFONT"] = None
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else:
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self.info["SYSFONT"] = self.localeInfo[self._systemLang][2]
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# XXX hack - because of exceptional cases on the var - zh_CN.GB2312
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if self._systemLang == "zh_CN.GB18030":
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self.info["LANGUAGE"] = "zh_CN.GB18030:zh_CN.GB2312:zh_CN"
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# The language to use on the installed system. This can differ from the
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# language being used during anaconda. For instance, text installs cannot
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# display all languages (CJK, Indic, etc.).
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systemLang = property(lambda s: s._systemLang, lambda s, v: s._setSystemLang(v))
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def __init__ (self, display_mode = 'g'):
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self._default = "en_US.UTF-8"
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self.displayMode = display_mode
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self.info = {}
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self.localeInfo = {}
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self.nativeLangNames = {}
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# English name -> native name mapping
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search = ('lang-names', '/usr/lib/anaconda/lang-names')
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for path in search:
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if os.access(path, os.R_OK):
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f = open(path, 'r')
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for line in f.readlines():
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lang, native = string.split(line, '\t')
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native = native.strip()
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self.nativeLangNames[lang] = native
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f.close()
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break
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# nick -> (name, short name, font, keyboard, timezone) mapping
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search = ('lang-table', '/tmp/updates/lang-table', '/etc/lang-table',
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'/usr/lib/anaconda/lang-table')
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for path in search:
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if os.access(path, os.R_OK):
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f = open(path, "r")
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for line in f.readlines():
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string.strip(line)
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l = string.split(line, '\t')
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# throw out invalid lines
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if len(l) < 6:
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continue
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self.localeInfo[l[3]] = (l[0], l[1], l[2], l[4], string.strip(l[5]))
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f.close()
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break
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# Hard code this to prevent errors in the build environment.
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self.localeInfo['C'] = self.localeInfo[self._default]
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# instLang must be set after localeInfo is populated, in case the
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# current setting is unsupported by anaconda..
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self.instLang = os.environ.get("LANG", self._default)
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self.systemLang = os.environ.get("LANG", self._default)
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def _canonLang(self, lang):
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"""Convert the shortened form of a language name into the full
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version. If it's not found, raise ValueError.
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Example: fr -> fr_FR.UTF-8
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fr_FR -> fr_FR.UTF-8
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fr_CA -> ValueError
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"""
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for key in self.localeInfo.keys():
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if lang in expandLangs(key):
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return key
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raise ValueError
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def available(self):
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return self.nativeLangNames.keys()
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def dracutSetupString(self):
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args=""
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for (key, val) in self.info.iteritems():
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if val != None:
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args += " %s=%s" % (key, val)
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return args
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def getCurrentLangSearchList(self):
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return expandLangs(self.systemLang) + ['C']
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def getDefaultKeyboard(self, instPath):
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try:
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return self.localeInfo[self.systemLang][3]
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except KeyError:
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try:
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kbd = keyboard.Keyboard()
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kbd.read(instPath)
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return kbd.get()
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except:
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return self.localeInfo[self._default][3]
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def getDefaultTimeZone(self, instPath):
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try:
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return self.localeInfo[self.systemLang][4]
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except KeyError:
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# If doing an upgrade and the system language is something not
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# recognized by anaconda, we should try to see if we can figure
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# it out from the running system.
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if os.path.exists(instPath + "/etc/sysconfig/clock"):
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cfg = SimpleConfigFile()
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cfg.read(instPath + "/etc/sysconfig/clock")
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try:
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return cfg.get("ZONE")
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except:
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return self.localeInfo[self._default][4]
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else:
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return self.localeInfo[self._default][4]
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def getFontFile(self, lang):
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# Note: in /etc/fonts.cgz fonts are named by the map
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# name as that's unique, font names are not
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try:
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l = self._canonLang(lang)
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except ValueError:
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l = self._default
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return self.localeInfo[l][2]
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def getLangName(self, lang):
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try:
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l = self._canonLang(lang)
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except ValueError:
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l = self._default
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return self.localeInfo[l][0]
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def getLangByName(self, name):
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for (key, val) in self.localeInfo.iteritems():
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if val[0] == name:
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return key
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def getNativeLangName(self, lang):
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return self.nativeLangNames[lang]
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def write(self, instPath):
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f = open(instPath + "/etc/sysconfig/i18n", "w")
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for (key, val) in self.info.iteritems():
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if val != None:
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f.write("%s=\"%s\"\n" % (key, val))
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f.close()
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def writeKS(self, f):
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f.write("lang %s\n" % self.info['LANG'])
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