[mod] dynamically set language_support variable

The language_support variable is set to True by default, and set to False in only 5 engines. Except the documentation and the /config URL, this variable is not used. This commit remove the variable definition in the engines, and set value according to supported_languages length: False when the length is 0, True otherwise. Close #2485
2021-01-24 09:58:57 +01:00 · 2021-01-24 09:58:57 +01:00 · ca93a01844
commit ca93a01844
parent 99244440e4
32 changed files with 3 additions and 33 deletions
--- a/docs/dev/engine_overview.rst
+++ b/docs/dev/engine_overview.rst
@ -42,7 +42,6 @@ argument                type        information
 ======================= =========== ========================================================
 categories              list        pages, in which the engine is working
 paging                  boolean     support multible pages
-language_support        boolean     support language choosing
 time_range_support      boolean     support search time range
 engine_type             str         ``online`` by default, other possibles values are 
                                    ``offline``, ``online_dictionnary``, ``online_currency``
@ -97,7 +96,6 @@ example code
   # engine dependent config
   categories = ['general']
   paging = True
-   language_support = True


 making a request
--- a/searx/engines/init.py
+++ b/searx/engines/init.py
@ -44,7 +44,6 @@ babel_langs = [lang_parts[0] + '-' + lang_parts[-1] if len(lang_parts) > 1 else
 engine_shortcuts = {}
 engine_default_args = {'paging': False,
                       'categories': ['general'],
-                       'language_support': True,
                       'supported_languages': [],
                       'safesearch': False,
                       'timeout': settings['outgoing']['request_timeout'],
@ -127,6 +126,9 @@ def load_engine(engine_data):

        setattr(engine, 'language_aliases', language_aliases)

+    # language_support
+    setattr(engine, 'language_support', len(getattr(engine, 'supported_languages', [])) > 0)
+
    # assign language fetching method if auxiliary method exists
    if hasattr(engine, '_fetch_supported_languages'):
        setattr(engine, 'fetch_supported_languages',
--- a/searx/engines/archlinux.py
+++ b/searx/engines/archlinux.py
@ -21,7 +21,6 @@ about = {

 # engine dependent config
 categories = ['it']
-language_support = True
 paging = True
 base_url = 'https://wiki.archlinux.org'

--- a/searx/engines/bing.py
+++ b/searx/engines/bing.py
@ -24,7 +24,6 @@ about = {
 # engine dependent config
 categories = ['general']
 paging = True
-language_support = True
 supported_languages_url = 'https://www.bing.com/account/general'
 language_aliases = {'zh-CN': 'zh-CHS', 'zh-TW': 'zh-CHT', 'zh-HK': 'zh-CHT'}

--- a/searx/engines/bing_images.py
+++ b/searx/engines/bing_images.py
@ -26,7 +26,6 @@ categories = ['images']
 paging = True
 safesearch = True
 time_range_support = True
-language_support = True
 supported_languages_url = 'https://www.bing.com/account/general'
 number_of_results = 28

--- a/searx/engines/bing_news.py
+++ b/searx/engines/bing_news.py
@ -25,7 +25,6 @@ about = {
 # engine dependent config
 categories = ['news']
 paging = True
-language_support = True
 time_range_support = True

 # search-url
--- a/searx/engines/bing_videos.py
+++ b/searx/engines/bing_videos.py
@ -26,7 +26,6 @@ paging = True
 safesearch = True
 time_range_support = True
 number_of_results = 28
-language_support = True

 base_url = 'https://www.bing.com/'
 search_string = 'videos/search'\
--- a/searx/engines/dailymotion.py
+++ b/searx/engines/dailymotion.py
@ -21,7 +21,6 @@ about = {
 # engine dependent config
 categories = ['videos']
 paging = True
-language_support = True

 # search-url
 # see http://www.dailymotion.com/doc/api/obj-video.html
--- a/searx/engines/doku.py
+++ b/searx/engines/doku.py
@ -20,7 +20,6 @@ about = {
 # engine dependent config
 categories = ['general']  # TODO , 'images', 'music', 'videos', 'files'
 paging = False
-language_support = False
 number_of_results = 5

 # search-url
--- a/searx/engines/duckduckgo.py
+++ b/searx/engines/duckduckgo.py
@ -20,7 +20,6 @@ about = {
 # engine dependent config
 categories = ['general']
 paging = False
-language_support = True
 supported_languages_url = 'https://duckduckgo.com/util/u172.js'
 time_range_support = True

--- a/searx/engines/duckduckgo_images.py
+++ b/searx/engines/duckduckgo_images.py
@ -26,7 +26,6 @@ about = {
 # engine dependent config
 categories = ['images']
 paging = True
-language_support = True
 safesearch = True

 # search-url
--- a/searx/engines/duden.py
+++ b/searx/engines/duden.py
@ -20,7 +20,6 @@ about = {

 categories = ['general']
 paging = True
-language_support = False

 # search-url
 base_url = 'https://www.duden.de/'
--- a/searx/engines/etools.py
+++ b/searx/engines/etools.py
@ -19,7 +19,6 @@ about = {

 categories = ['general']
 paging = False
-language_support = False
 safesearch = True

 base_url = 'https://www.etools.ch'
--- a/searx/engines/genius.py
+++ b/searx/engines/genius.py
@ -20,7 +20,6 @@ about = {
 # engine dependent config
 categories = ['music']
 paging = True
-language_support = False
 page_size = 5

 url = 'https://genius.com/api/'
--- a/searx/engines/gentoo.py
+++ b/searx/engines/gentoo.py
@ -19,7 +19,6 @@ about = {

 # engine dependent config
 categories = ['it']
-language_support = True
 paging = True
 base_url = 'https://wiki.gentoo.org'

--- a/searx/engines/gigablast.py
+++ b/searx/engines/gigablast.py
@ -24,7 +24,6 @@ about = {
 categories = ['general']
 # gigablast's pagination is totally damaged, don't use it
 paging = False
-language_support = True
 safesearch = True

 # search-url
--- a/searx/engines/google.py
+++ b/searx/engines/google.py
@ -31,7 +31,6 @@ about = {
 # engine dependent config
 categories = ['general']
 paging = True
-language_support = True
 time_range_support = True
 safesearch = True
 supported_languages_url = 'https://www.google.com/preferences?#languages'
--- a/searx/engines/google_images.py
+++ b/searx/engines/google_images.py
@ -56,7 +56,6 @@ about = {
 # engine dependent config
 categories = ['images']
 paging = False
-language_support = True
 use_locale_domain = True
 time_range_support = True
 safesearch = True
--- a/searx/engines/google_news.py
+++ b/searx/engines/google_news.py
@ -68,7 +68,6 @@ time_range_dict = {

 categories = ['news']
 paging = False
-language_support = True
 use_locale_domain = True
 time_range_support = True

--- a/searx/engines/invidious.py
+++ b/searx/engines/invidious.py
@ -21,7 +21,6 @@ about = {
 # engine dependent config
 categories = ["videos", "music"]
 paging = True
-language_support = True
 time_range_support = True


--- a/searx/engines/mediawiki.py
+++ b/searx/engines/mediawiki.py
@ -19,7 +19,6 @@ about = {

 # engine dependent config
 categories = ['general']
-language_support = True
 paging = True
 number_of_results = 1
 search_type = 'nearmatch'  # possible values: title, text, nearmatch
--- a/searx/engines/peertube.py
+++ b/searx/engines/peertube.py
@ -21,7 +21,6 @@ about = {
 # engine dependent config
 categories = ["videos"]
 paging = True
-language_support = True
 base_url = "https://peer.tube/"
 supported_languages_url = base_url + "api/v1/videos/languages"

--- a/searx/engines/photon.py
+++ b/searx/engines/photon.py
@ -20,7 +20,6 @@ about = {
 # engine dependent config
 categories = ['map']
 paging = False
-language_support = True
 number_of_results = 10

 # search-url
--- a/searx/engines/qwant.py
+++ b/searx/engines/qwant.py
@ -23,7 +23,6 @@ about = {
 # engine dependent config
 categories = []
 paging = True
-language_support = True
 supported_languages_url = 'https://qwant.com/region'

 category_to_keyword = {'general': 'web',
--- a/searx/engines/sepiasearch.py
+++ b/searx/engines/sepiasearch.py
@ -20,7 +20,6 @@ about = {

 categories = ['videos']
 paging = True
-language_support = True
 time_range_support = True
 safesearch = True
 supported_languages = [
--- a/searx/engines/startpage.py
+++ b/searx/engines/startpage.py
@ -29,7 +29,6 @@ categories = ['general']
 # storing of qid's between mulitble search-calls

 paging = True
-language_support = True
 supported_languages_url = 'https://www.startpage.com/do/settings'

 # search-url
--- a/searx/engines/yacy.py
+++ b/searx/engines/yacy.py
@ -24,7 +24,6 @@ about = {
 # engine dependent config
 categories = ['general', 'images']  # TODO , 'music', 'videos', 'files'
 paging = True
-language_support = True
 number_of_results = 5
 http_digest_auth_user = ""
 http_digest_auth_pass = ""
--- a/searx/engines/yahoo.py
+++ b/searx/engines/yahoo.py
@ -20,7 +20,6 @@ about = {
 # engine dependent config
 categories = ['general']
 paging = True
-language_support = True
 time_range_support = True

 # search-url
--- a/searx/engines/yahoo_news.py
+++ b/searx/engines/yahoo_news.py
@ -25,7 +25,6 @@ about = {
 # engine dependent config
 categories = ['news']
 paging = True
-language_support = True

 # search-url
 search_url = 'https://news.search.yahoo.com/search?{query}&b={offset}&{lang}=uh3_news_web_gs_1&pz=10&xargs=0&vl=lang_{lang}'  # noqa
--- a/searx/engines/yandex.py
+++ b/searx/engines/yandex.py
@ -23,7 +23,6 @@ about = {
 # engine dependent config
 categories = ['general']
 paging = True
-language_support = True  # TODO

 default_tld = 'com'
 language_map = {'ru': 'ru',
--- a/searx/engines/youtube_api.py
+++ b/searx/engines/youtube_api.py
@ -21,7 +21,6 @@ about = {
 # engine dependent config
 categories = ['videos', 'music']
 paging = False
-language_support = True
 api_key = None

 # search-url
--- a/searx/engines/youtube_noapi.py
+++ b/searx/engines/youtube_noapi.py
@ -20,7 +20,6 @@ about = {
 # engine dependent config
 categories = ['videos', 'music']
 paging = True
-language_support = False
 time_range_support = True

 # search-url