mirror of
https://github.com/searxng/searxng.git
synced 2024-11-22 12:10:11 +01:00
0b7f0bde62
Instead of a single line with 500000 characters use nicely formatted JSON. Sort the lists in engine_languages.py so when updating it is possible to more easily see the differences (search engines do change the order their languages are listed in)
192 lines
7.9 KiB
Python
192 lines
7.9 KiB
Python
# -*- coding: utf-8 -*-
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# This script generates languages.py from intersecting each engine's supported languages.
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#
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# Output files (engines_languages.json and languages.py)
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# are written in current directory to avoid overwriting in case something goes wrong.
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from json import dump
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import io
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from sys import path
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from babel import Locale, UnknownLocaleError
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from babel.languages import get_global
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path.append('../searx') # noqa
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from searx import settings
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from searx.engines import initialize_engines, engines
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# Output files.
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engines_languages_file = 'engines_languages.json'
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languages_file = 'languages.py'
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# Fetchs supported languages for each engine and writes json file with those.
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def fetch_supported_languages():
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engines_languages = {}
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for engine_name in engines:
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if hasattr(engines[engine_name], 'fetch_supported_languages'):
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try:
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engines_languages[engine_name] = engines[engine_name].fetch_supported_languages()
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if type(engines_languages[engine_name]) == list:
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engines_languages[engine_name] = sorted(engines_languages[engine_name])
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except Exception as e:
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print(e)
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# write json file
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with io.open(engines_languages_file, "w", encoding="utf-8") as f:
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dump(engines_languages, f, ensure_ascii=False, indent=4, separators=(',', ': '))
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return engines_languages
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# Get babel Locale object from lang_code if possible.
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def get_locale(lang_code):
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try:
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locale = Locale.parse(lang_code, sep='-')
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return locale
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except (UnknownLocaleError, ValueError):
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return None
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# Append engine_name to list of engines that support locale.
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def add_engine_counter(lang_code, engine_name, languages):
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if lang_code in languages:
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if 'counter' not in languages[lang_code]:
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languages[lang_code]['counter'] = [engine_name]
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elif engine_name not in languages[lang_code]['counter']:
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languages[lang_code]['counter'].append(engine_name)
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# Join all language lists.
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# TODO: Add language names from engine's language list if name not known by babel.
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def join_language_lists(engines_languages):
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language_list = {}
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for engine_name in engines_languages:
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for lang_code in engines_languages[engine_name]:
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# apply custom fixes if necessary
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if lang_code in getattr(engines[engine_name], 'language_aliases', {}).values():
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lang_code = next(lc for lc, alias in engines[engine_name].language_aliases.items()
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if lang_code == alias)
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locale = get_locale(lang_code)
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# ensure that lang_code uses standard language and country codes
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if locale and locale.territory:
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lang_code = locale.language + '-' + locale.territory
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# add locale if it's not in list
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if lang_code not in language_list:
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if locale:
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language_list[lang_code] = {'name': locale.get_language_name().title(),
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'english_name': locale.english_name,
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'country': locale.get_territory_name() or ''}
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# also add language without country
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if locale.language not in language_list:
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language_list[locale.language] = {'name': locale.get_language_name().title(),
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'english_name': locale.english_name}
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else:
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language_list[lang_code] = {}
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# count engine for both language_country combination and language alone
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add_engine_counter(lang_code, engine_name, language_list)
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add_engine_counter(lang_code.split('-')[0], engine_name, language_list)
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return language_list
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# Filter language list so it only includes the most supported languages and countries.
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def filter_language_list(all_languages):
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min_supported_engines = 10
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main_engines = [engine_name for engine_name in engines.keys()
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if 'general' in engines[engine_name].categories and
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engines[engine_name].supported_languages and
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not engines[engine_name].disabled]
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# filter list to include only languages supported by most engines or all default general engines
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filtered_languages = {code: lang for code, lang
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in all_languages.items()
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if (len(lang.get('counter', [])) >= min_supported_engines or
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all(main_engine in lang.get('counter', [])
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for main_engine in main_engines))}
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return filtered_languages
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# Add country codes to languages without one and filter out language codes.
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def assign_country_codes(filtered_languages, all_languages):
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sorted_languages = sorted(all_languages,
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key=lambda lang: len(all_languages[lang].get('counter', [])),
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reverse=True)
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previous_lang = None
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previous_code = None
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countries = 0
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for current_code in sorted(filtered_languages):
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current_lang = current_code.split('-')[0]
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# count country codes per language
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if current_lang == previous_lang:
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countries += 1
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else:
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if previous_lang is not None:
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# if language has no single country code
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if countries == 0:
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# try to get country code with most supported engines
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for l in sorted_languages:
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l_parts = l.split('-')
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if len(l_parts) == 2 and l_parts[0] == previous_lang:
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filtered_languages[l] = all_languages[l]
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filtered_languages[l]['country'] = ''
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countries = 1
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break
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if countries == 0:
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# get most likely country code from babel
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subtags = get_global('likely_subtags').get(previous_lang)
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if subtags:
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subtag_parts = subtags.split('_')
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new_code = subtag_parts[0] + '-' + subtag_parts[-1]
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filtered_languages[new_code] = all_languages[previous_lang]
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countries = 1
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if countries == 1:
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# remove countryless version of language if there's only one country
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del filtered_languages[previous_lang]
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if previous_code in filtered_languages:
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filtered_languages[previous_code]['country'] = ''
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countries = 0
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previous_lang = current_lang
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previous_code = current_code
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# Write languages.py.
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def write_languages_file(languages):
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new_file = open(languages_file, 'wb')
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file_content = '# -*- coding: utf-8 -*-\n'\
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+ '# list of language codes\n'\
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+ '# this file is generated automatically by utils/update_search_languages.py\n'\
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+ '\nlanguage_codes = ('
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for code in sorted(languages):
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file_content += '\n (u"' + code + '"'\
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+ ', u"' + languages[code]['name'].split(' (')[0] + '"'\
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+ ', u"' + languages[code].get('country', '') + '"'\
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+ ', u"' + languages[code].get('english_name', '').split(' (')[0] + '"),'
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# remove last comma
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file_content = file_content[:-1]
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file_content += '\n)\n'
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new_file.write(file_content.encode('utf8'))
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new_file.close()
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if __name__ == "__main__":
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initialize_engines(settings['engines'])
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engines_languages = fetch_supported_languages()
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all_languages = join_language_lists(engines_languages)
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filtered_languages = filter_language_list(all_languages)
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assign_country_codes(filtered_languages, all_languages)
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write_languages_file(filtered_languages)
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