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1 | #!/usr/bin/python3 |
2 | ############################################################################### | |
3 | # # | |
4 | # collecty - A system statistics collection daemon for IPFire # | |
5 | # Copyright (C) 2015 IPFire development team # | |
6 | # # | |
7 | # This program is free software: you can redistribute it and/or modify # | |
8 | # it under the terms of the GNU General Public License as published by # | |
9 | # the Free Software Foundation, either version 3 of the License, or # | |
10 | # (at your option) any later version. # | |
11 | # # | |
12 | # This program is distributed in the hope that it will be useful, # | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
15 | # GNU General Public License for more details. # | |
16 | # # | |
17 | # You should have received a copy of the GNU General Public License # | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
19 | # # | |
20 | ############################################################################### | |
21 | ||
22 | import gettext | |
23 | import os | |
24 | ||
25 | from .constants import * | |
26 | from .i18n import TEXTDOMAIN | |
27 | ||
28 | import logging | |
29 | log = logging.getLogger("collecty.locale") | |
30 | log.propagate = 1 | |
31 | ||
32 | class Locale(object): | |
33 | def __init__(self, lang): | |
34 | self.lang = lang | |
35 | ||
36 | def translate(self, message, plural_message=None, count=None): | |
37 | if plural_message is not None: | |
38 | assert count is not None | |
39 | ||
40 | # Replace the message by the plural message if | |
41 | # we are using plural. | |
42 | if count > 1: | |
43 | message = plural_message | |
44 | ||
45 | return message | |
46 | ||
47 | ||
48 | class GettextLocale(Locale): | |
49 | def __init__(self, lang, translation): | |
50 | Locale.__init__(self, lang) | |
51 | ||
52 | self.translation = translation | |
53 | ||
54 | # Bind gettext functions | |
55 | self.gettext = self.translation.gettext | |
56 | self.ngettext = self.translation.ngettext | |
57 | ||
58 | def translate(self, message, plural_message=None, count=None): | |
59 | if plural_message is not None: | |
60 | assert count is not None | |
61 | return self.ngettext(message, plural_message, count) | |
62 | ||
63 | return self.gettext(message) | |
64 | ||
65 | ||
66 | def _find_all_locales(domain, directory): | |
67 | locales = { | |
68 | DEFAULT_LOCALE : Locale(DEFAULT_LOCALE), | |
69 | } | |
70 | ||
71 | for lang in os.listdir(directory): | |
72 | if lang.startswith("."): | |
73 | continue | |
74 | ||
75 | filename = os.path.join(directory, lang, "LC_MESSAGES", | |
76 | "%s.mo" % domain) | |
77 | ||
78 | # Check if a translation file exists and go on if not | |
79 | if not os.path.exists(filename): | |
80 | continue | |
81 | ||
82 | try: | |
83 | translation = gettext.translation(domain, | |
84 | directory, languages=[lang]) | |
85 | except Exception as e: | |
86 | log.error("Cound not load translation for %s: %s" \ | |
87 | % (lang, e)) | |
88 | continue | |
89 | ||
90 | locales[lang] = GettextLocale(lang, translation) | |
91 | ||
92 | log.debug("Loaded translations: %s" % ", ".join(locales.keys())) | |
93 | ||
94 | return locales | |
95 | ||
96 | _locales = _find_all_locales(TEXTDOMAIN, "/usr/share/locale") | |
97 | ||
98 | def get_supported_locales(): | |
99 | return list(_locales.keys()) | |
100 | ||
101 | def get_closest(*langs): | |
102 | for lang in langs: | |
103 | if not lang: | |
104 | continue | |
105 | ||
106 | lang = lang.replace("-", "_") | |
107 | parts = lang.split("_") | |
108 | ||
109 | if len(parts) > 2: | |
110 | continue | |
111 | ||
112 | elif len(parts) == 2: | |
113 | parts[0] = parts[0].lower() | |
114 | parts[1] = parts[1].upper() | |
115 | lang = "_".join(parts) | |
116 | ||
117 | for l in (lang, parts[0]): | |
118 | try: | |
119 | return _locales[l] | |
120 | except KeyError: | |
121 | pass | |
122 | ||
123 | def get(*langs): | |
124 | return get_closest(*langs) or _locale.get(DEFAULT_LOCALE, None) |