10 files changed, 205 insertions, 61 deletions

diff --git a/docs/dev/searxng_extra/index.rst b/docs/dev/searxng_extra/index.rst
index f38bb3154..c2b5c312b 100644
--- a/docs/dev/searxng_extra/index.rst
+++ b/docs/dev/searxng_extra/index.rst
@@ -1,14 +1,15 @@
 .. _searxng_extra:
 
-======================================================
-Tooling box ``searxng_extra`` for developers and users
-======================================================
+=============================
+Tooling box ``searxng_extra``
+=============================
 
-In the folder :origin:`searxng_extra/` we maintain some tools useful for
+In the folder :origin:`searxng_extra/` we maintain some tools useful for CI and
 developers.
 
 .. toctree::
    :maxdepth: 2
    :caption: Contents
 
+   update
    standalone_searx.py
diff --git a/docs/dev/searxng_extra/update.rst b/docs/dev/searxng_extra/update.rst
new file mode 100644
index 000000000..d05c81409
--- /dev/null
+++ b/docs/dev/searxng_extra/update.rst
@@ -0,0 +1,88 @@
+=========================
+``searxng_extra/update/``
+=========================
+
+:origin:`[source] <searxng_extra/update/__init__.py>`
+
+Scripts to update static data in :origin:`searx/data/`
+
+.. _update_ahmia_blacklist.py:
+
+``update_ahmia_blacklist.py``
+=============================
+
+:origin:`[source] <searxng_extra/update/update_ahmia_blacklist.py>`
+
+.. automodule:: searxng_extra.update.update_ahmia_blacklist
+  :members:
+
+
+``update_currencies.py``
+========================
+
+:origin:`[source] <searxng_extra/update/update_currencies.py>`
+
+.. automodule:: searxng_extra.update.update_currencies
+  :members:
+
+``update_engine_descriptions.py``
+=================================
+
+:origin:`[source] <searxng_extra/update/update_engine_descriptions.py>`
+
+.. automodule:: searxng_extra.update.update_engine_descriptions
+  :members:
+
+
+``update_external_bangs.py``
+============================
+
+:origin:`[source] <searxng_extra/update/update_external_bangs.py>`
+
+.. automodule:: searxng_extra.update.update_external_bangs
+  :members:
+
+
+``update_firefox_version.py``
+=============================
+
+:origin:`[source] <searxng_extra/update/update_firefox_version.py>`
+
+.. automodule:: searxng_extra.update.update_firefox_version
+  :members:
+
+
+``update_languages.py``
+=======================
+
+:origin:`[source] <searxng_extra/update/update_languages.py>`
+
+.. automodule:: searxng_extra.update.update_languages
+  :members:
+
+
+``update_osm_keys_tags.py``
+===========================
+
+:origin:`[source] <searxng_extra/update/update_osm_keys_tags.py>`
+
+.. automodule:: searxng_extra.update.update_osm_keys_tags
+  :members:
+
+
+``update_pygments.py``
+======================
+
+:origin:`[source] <searxng_extra/update/update_pygments.py>`
+
+.. automodule:: searxng_extra.update.update_pygments
+  :members:
+
+
+``update_wikidata_units.py``
+============================
+
+:origin:`[source] <searxng_extra/update/update_wikidata_units.py>`
+
+.. automodule:: searxng_extra.update.update_wikidata_units
+  :members:
diff --git a/searxng_extra/update/update_ahmia_blacklist.py b/searxng_extra/update/update_ahmia_blacklist.py
index f7695deae..26c485195 100755
--- a/searxng_extra/update/update_ahmia_blacklist.py
+++ b/searxng_extra/update/update_ahmia_blacklist.py
@@ -1,10 +1,15 @@
 #!/usr/bin/env python
+# lint: pylint
 # SPDX-License-Identifier: AGPL-3.0-or-later
+"""This script saves `Ahmia's blacklist`_ for onion sites.
 
-# This script saves Ahmia's blacklist for onion sites.
-# More info in https://ahmia.fi/blacklist/
+Output file: :origin:`searx/data/ahmia_blacklist.txt` (:origin:`CI Update data
+...  <.github/workflows/data-update.yml>`).
+
+.. _Ahmia's blacklist: https://ahmia.fi/blacklist/
+
+"""
 
-# set path
 from os.path import join
 
 import requests
@@ -17,15 +22,14 @@ def fetch_ahmia_blacklist():
     resp = requests.get(URL, timeout=3.0)
     if resp.status_code != 200:
         raise Exception("Error fetching Ahmia blacklist, HTTP code " + resp.status_code)
-    else:
-        blacklist = resp.text.split()
-        return blacklist
+    return resp.text.split()
 
 
 def get_ahmia_blacklist_filename():
     return join(join(searx_dir, "data"), "ahmia_blacklist.txt")
 
 
-blacklist = fetch_ahmia_blacklist()
-with open(get_ahmia_blacklist_filename(), "w") as f:
-    f.write('\n'.join(blacklist))
+if __name__ == '__main__':
+    blacklist = fetch_ahmia_blacklist()
+    with open(get_ahmia_blacklist_filename(), "w", encoding='utf-8') as f:
+        f.write('\n'.join(blacklist))
diff --git a/searxng_extra/update/update_currencies.py b/searxng_extra/update/update_currencies.py
index 3373e2455..e51692e72 100755
--- a/searxng_extra/update/update_currencies.py
+++ b/searxng_extra/update/update_currencies.py
@@ -1,13 +1,22 @@
 #!/usr/bin/env python
+# lint: pylint
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+"""Fetch currencies from :origin:`searx/engines/wikidata.py` engine.
+
+Output file: :origin:`searx/data/currencies.json` (:origin:`CI Update data ...
+<.github/workflows/data-update.yml>`).
+
+"""
+
+# pylint: disable=invalid-name
+
 import re
 import unicodedata
 import json
 
 # set path
-from sys import path
-from os.path import realpath, dirname, join
+from os.path import join
 
 from searx import searx_dir
 from searx.locales import LOCALE_NAMES
diff --git a/searxng_extra/update/update_engine_descriptions.py b/searxng_extra/update/update_engine_descriptions.py
index 51cfc7cc2..5b73fd396 100755
--- a/searxng_extra/update/update_engine_descriptions.py
+++ b/searxng_extra/update/update_engine_descriptions.py
@@ -1,6 +1,16 @@
 #!/usr/bin/env python
+# lint: pylint
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+"""Fetch website description from websites and from
+:origin:`searx/engines/wikidata.py` engine.
+
+Output file: :origin:`searx/data/engine_descriptions.json`.
+
+"""
+
+# pylint: disable=invalid-name, global-statement
+
 import json
 from urllib.parse import urlparse
 from os.path import join
@@ -102,7 +112,7 @@ def get_wikipedia_summary(lang, pageid):
         response.raise_for_status()
         api_result = json.loads(response.text)
         return api_result.get('extract')
-    except:
+    except Exception:  # pylint: disable=broad-except
         return None
 
 
@@ -134,7 +144,7 @@ def get_website_description(url, lang1, lang2=None):
     try:
         response = searx.network.get(url, headers=headers, timeout=10)
         response.raise_for_status()
-    except Exception:
+    except Exception:  # pylint: disable=broad-except
         return (None, None)
 
     try:
diff --git a/searxng_extra/update/update_external_bangs.py b/searxng_extra/update/update_external_bangs.py
index d5c6b585a..be3aade0f 100755
--- a/searxng_extra/update/update_external_bangs.py
+++ b/searxng_extra/update/update_external_bangs.py
@@ -1,17 +1,20 @@
 #!/usr/bin/env python
 # lint: pylint
 # SPDX-License-Identifier: AGPL-3.0-or-later
-"""
-Update searx/data/external_bangs.json using the duckduckgo bangs.
+"""Update :origin:`searx/data/external_bangs.json` using the duckduckgo bangs
+(:origin:`CI Update data ... <.github/workflows/data-update.yml>`).
+
+https://duckduckgo.com/newbang loads:
 
-https://duckduckgo.com/newbang loads
 * a javascript which provides the bang version ( https://duckduckgo.com/bv1.js )
 * a JSON file which contains the bangs ( https://duckduckgo.com/bang.v260.js for example )
 
 This script loads the javascript, then the bangs.
 
-The javascript URL may change in the future ( for example https://duckduckgo.com/bv2.js ),
-but most probably it will requires to update RE_BANG_VERSION
+The javascript URL may change in the future ( for example
+https://duckduckgo.com/bv2.js ), but most probably it will requires to update
+RE_BANG_VERSION
+
 """
 # pylint: disable=C0116
 
diff --git a/searxng_extra/update/update_firefox_version.py b/searxng_extra/update/update_firefox_version.py
index 750e955fd..a447f9fd5 100755
--- a/searxng_extra/update/update_firefox_version.py
+++ b/searxng_extra/update/update_firefox_version.py
@@ -1,21 +1,30 @@
 #!/usr/bin/env python
+# lint: pylint
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
+"""Fetch firefox useragent signatures
+
+Output file: :origin:`searx/data/useragents.json` (:origin:`CI Update data ...
+<.github/workflows/data-update.yml>`).
+
+"""
+
 import json
-import requests
 import re
-from os.path import dirname, join
+from os.path import join
 from urllib.parse import urlparse, urljoin
-from distutils.version import LooseVersion, StrictVersion
+from distutils.version import LooseVersion
+
+import requests
 from lxml import html
 from searx import searx_dir
 
 URL = 'https://ftp.mozilla.org/pub/firefox/releases/'
 RELEASE_PATH = '/pub/firefox/releases/'
 
-NORMAL_REGEX = re.compile('^[0-9]+\.[0-9](\.[0-9])?$')
-# BETA_REGEX = re.compile('.*[0-9]b([0-9\-a-z]+)$')
-# ESR_REGEX = re.compile('^[0-9]+\.[0-9](\.[0-9])?esr$')
+NORMAL_REGEX = re.compile(r'^[0-9]+\.[0-9](\.[0-9])?$')
+# BETA_REGEX = re.compile(r'.*[0-9]b([0-9\-a-z]+)$')
+# ESR_REGEX = re.compile(r'^[0-9]+\.[0-9](\.[0-9])?esr$')
 
 #
 useragents = {
@@ -32,20 +41,19 @@ def fetch_firefox_versions():
     resp = requests.get(URL, timeout=2.0)
     if resp.status_code != 200:
         raise Exception("Error fetching firefox versions, HTTP code " + resp.status_code)
-    else:
-        dom = html.fromstring(resp.text)
-        versions = []
+    dom = html.fromstring(resp.text)
+    versions = []
 
-        for link in dom.xpath('//a/@href'):
-            url = urlparse(urljoin(URL, link))
-            path = url.path
-            if path.startswith(RELEASE_PATH):
-                version = path[len(RELEASE_PATH) : -1]
-                if NORMAL_REGEX.match(version):
-                    versions.append(LooseVersion(version))
+    for link in dom.xpath('//a/@href'):
+        url = urlparse(urljoin(URL, link))
+        path = url.path
+        if path.startswith(RELEASE_PATH):
+            version = path[len(RELEASE_PATH) : -1]
+            if NORMAL_REGEX.match(version):
+                versions.append(LooseVersion(version))
 
-        list.sort(versions, reverse=True)
-        return versions
+    list.sort(versions, reverse=True)
+    return versions
 
 
 def fetch_firefox_last_versions():
@@ -66,6 +74,7 @@ def get_useragents_filename():
     return join(join(searx_dir, "data"), "useragents.json")
 
 
-useragents["versions"] = fetch_firefox_last_versions()
-with open(get_useragents_filename(), "w") as f:
-    json.dump(useragents, f, indent=4, ensure_ascii=False)
+if __name__ == '__main__':
+    useragents["versions"] = fetch_firefox_last_versions()
+    with open(get_useragents_filename(), "w", encoding='utf-8') as f:
+        json.dump(useragents, f, indent=4, ensure_ascii=False)
diff --git a/searxng_extra/update/update_languages.py b/searxng_extra/update/update_languages.py
index f37345808..754180c47 100755
--- a/searxng_extra/update/update_languages.py
+++ b/searxng_extra/update/update_languages.py
@@ -1,9 +1,17 @@
 #!/usr/bin/env python
+# lint: pylint
+
 # SPDX-License-Identifier: AGPL-3.0-or-later
+"""This script generates languages.py from intersecting each engine's supported
+languages.
+
+Output files: :origin:`searx/data/engines_languages.json` and
+:origin:`searx/languages.py` (:origin:`CI Update data ...
+<.github/workflows/data-update.yml>`).
+
+"""
 
-# This script generates languages.py from intersecting each engine's supported languages.
-#
-# Output files: searx/data/engines_languages.json and searx/languages.py
+# pylint: disable=invalid-name
 
 import json
 from pathlib import Path
@@ -24,7 +32,7 @@ languages_file = Path(searx_dir) / 'languages.py'
 def fetch_supported_languages():
     set_timeout_for_thread(10.0)
 
-    engines_languages = dict()
+    engines_languages = {}
     names = list(engines)
     names.sort()
 
@@ -32,7 +40,7 @@ def fetch_supported_languages():
         if hasattr(engines[engine_name], 'fetch_supported_languages'):
             engines_languages[engine_name] = engines[engine_name].fetch_supported_languages()
             print("fetched %s languages from engine %s" % (len(engines_languages[engine_name]), engine_name))
-            if type(engines_languages[engine_name]) == list:
+            if type(engines_languages[engine_name]) == list:  # pylint: disable=unidiomatic-typecheck
                 engines_languages[engine_name] = sorted(engines_languages[engine_name])
 
     print("fetched languages from %s engines" % len(engines_languages))
@@ -55,7 +63,7 @@ def get_locale(lang_code):
 
 # Join all language lists.
 def join_language_lists(engines_languages):
-    language_list = dict()
+    language_list = {}
     for engine_name in engines_languages:
         for lang_code in engines_languages[engine_name]:
 
@@ -91,7 +99,7 @@ def join_language_lists(engines_languages):
                     'name': language_name,
                     'english_name': english_name,
                     'counter': set(),
-                    'countries': dict(),
+                    'countries': {},
                 }
 
             # add language with country if not in list
@@ -119,6 +127,7 @@ def join_language_lists(engines_languages):
 def filter_language_list(all_languages):
     min_engines_per_lang = 13
     min_engines_per_country = 7
+    # pylint: disable=consider-using-dict-items, consider-iterating-dictionary
     main_engines = [
         engine_name
         for engine_name in engines.keys()
@@ -138,7 +147,7 @@ def filter_language_list(all_languages):
     }
 
     def _copy_lang_data(lang, country_name=None):
-        new_dict = dict()
+        new_dict = {}
         new_dict['name'] = all_languages[lang]['name']
         new_dict['english_name'] = all_languages[lang]['english_name']
         if country_name:
@@ -146,10 +155,10 @@ def filter_language_list(all_languages):
         return new_dict
 
     # for each language get country codes supported by most engines or at least one country code
-    filtered_languages_with_countries = dict()
+    filtered_languages_with_countries = {}
     for lang, lang_data in filtered_languages.items():
         countries = lang_data['countries']
-        filtered_countries = dict()
+        filtered_countries = {}
 
         # get language's country codes with enough supported engines
         for lang_country, country_data in countries.items():
@@ -211,7 +220,7 @@ def write_languages_file(languages):
 
     language_codes = tuple(language_codes)
 
-    with open(languages_file, 'w') as new_file:
+    with open(languages_file, 'w', encoding='utf-8') as new_file:
         file_content = "{file_headers} {language_codes},\n)\n".format(
             # fmt: off
             file_headers = '\n'.join(file_headers),
@@ -224,7 +233,7 @@ def write_languages_file(languages):
 
 if __name__ == "__main__":
     load_engines(settings['engines'])
-    engines_languages = fetch_supported_languages()
-    all_languages = join_language_lists(engines_languages)
-    filtered_languages = filter_language_list(all_languages)
-    write_languages_file(filtered_languages)
+    _engines_languages = fetch_supported_languages()
+    _all_languages = join_language_lists(_engines_languages)
+    _filtered_languages = filter_language_list(_all_languages)
+    write_languages_file(_filtered_languages)
diff --git a/searxng_extra/update/update_osm_keys_tags.py b/searxng_extra/update/update_osm_keys_tags.py
index 2916cbff1..1d691c194 100755
--- a/searxng_extra/update/update_osm_keys_tags.py
+++ b/searxng_extra/update/update_osm_keys_tags.py
@@ -5,7 +5,10 @@
 
 To get the i18n names, the scripts uses `Wikidata Query Service`_ instead of for
 example `OSM tags API`_ (sidenote: the actual change log from
-map.atownsend.org.uk_ might be useful to normalize OSM tags)
+map.atownsend.org.uk_ might be useful to normalize OSM tags).
+
+Output file: :origin:`searx/data/osm_keys_tags` (:origin:`CI Update data ...
+<.github/workflows/data-update.yml>`).
 
 .. _Wikidata Query Service: https://query.wikidata.org/
 .. _OSM tags API: https://taginfo.openstreetmap.org/taginfo/apidoc
diff --git a/searxng_extra/update/update_wikidata_units.py b/searxng_extra/update/update_wikidata_units.py
index 43a872b1b..e999b6cfd 100755
--- a/searxng_extra/update/update_wikidata_units.py
+++ b/searxng_extra/update/update_wikidata_units.py
@@ -3,6 +3,13 @@
 # lint: pylint
 # pylint: disable=missing-module-docstring
 
+"""Fetch units from :origin:`searx/engines/wikidata.py` engine.
+
+Output file: :origin:`searx/data/wikidata_units.json` (:origin:`CI Update data
+...  <.github/workflows/data-update.yml>`).
+
+"""
+
 import json
 import collections
 
@@ -54,5 +61,6 @@ def get_wikidata_units_filename():
     return join(join(searx_dir, "data"), "wikidata_units.json")
 
 
-with open(get_wikidata_units_filename(), 'w', encoding="utf8") as f:
-    json.dump(get_data(), f, indent=4, ensure_ascii=False)
+if __name__ == '__main__':
+    with open(get_wikidata_units_filename(), 'w', encoding="utf8") as f:
+        json.dump(get_data(), f, indent=4, ensure_ascii=False)