zulip/zerver/lib/i18n.py

97 lines
3.1 KiB
Python

import operator
from django.conf import settings
from django.utils import translation
from django.utils.translation import ugettext as _
from django.utils.lru_cache import lru_cache
from itertools import zip_longest
from typing import Any, List, Dict
import os
import ujson
import logging
def with_language(string: str, language: str) -> str:
"""
This is an expensive function. If you are using it in a loop, it will
make your code slow.
"""
old_language = translation.get_language()
translation.activate(language)
result = _(string)
translation.activate(old_language)
return result
@lru_cache()
def get_language_list() -> List[Dict[str, Any]]:
path = os.path.join(settings.DEPLOY_ROOT, 'locale', 'language_name_map.json')
with open(path) as reader:
languages = ujson.load(reader)
return languages['name_map']
def get_language_list_for_templates(default_language: str) -> List[Dict[str, Dict[str, str]]]:
language_list = [lang for lang in get_language_list()
if 'percent_translated' not in lang or
lang['percent_translated'] >= 5.]
formatted_list = []
lang_len = len(language_list)
firsts_end = (lang_len // 2) + operator.mod(lang_len, 2)
firsts = list(range(0, firsts_end))
seconds = list(range(firsts_end, lang_len))
assert len(firsts) + len(seconds) == lang_len
for row in zip_longest(firsts, seconds):
item = {}
for position, ind in zip(['first', 'second'], row):
if ind is None:
continue
lang = language_list[ind]
percent = name = lang['name']
if 'percent_translated' in lang:
percent = "{} ({}%)".format(name, lang['percent_translated'])
selected = False
if default_language in (lang['code'], lang['locale']):
selected = True
item[position] = {
'name': name,
'code': lang['code'],
'percent': percent,
'selected': selected
}
formatted_list.append(item)
return formatted_list
def get_language_name(code: str) -> str:
for lang in get_language_list():
if code in (lang['code'], lang['locale']):
return lang['name']
# Log problem, but still return a name
logging.error("Unknown language code '%s'", code)
return "Unknown"
def get_available_language_codes() -> List[str]:
language_list = get_language_list()
codes = [language['code'] for language in language_list]
return codes
def get_language_translation_data(language: str) -> Dict[str, str]:
if language == 'zh-hans':
language = 'zh_Hans'
elif language == 'zh-hant':
language = 'zh_Hant'
elif language == 'id-id':
language = 'id_ID'
path = os.path.join(settings.DEPLOY_ROOT, 'locale', language, 'translations.json')
try:
with open(path) as reader:
return ujson.load(reader)
except FileNotFoundError:
print(f'Translation for {language} not found at {path}')
return {}