Check for unused translations (#24)

Makefile

@@ -31,6 +31,7 @@ check-translations:
 	@$(foreach lang,$(languages), \
 		msgcmp resources/language/resource.language.$(lang)/strings.po resources/language/resource.language.en_gb/strings.po; \
 	)
+	@tests/check_for_unused_translations.py
 
 check-addon: clean build
 	@echo ">>> Running addon checks"

resources/language/resource.language.en_gb/strings.po

@@ -18,10 +18,6 @@ msgctxt "#30003"
 msgid "Catalogue"
 msgstr ""
 
-msgctxt "#30004"
-msgid "TV Shows and Movies listed by category"
-msgstr ""
-
 msgctxt "#30007"
 msgid "Channels"
 msgstr ""
@@ -42,10 +38,6 @@ msgctxt "#30013"
 msgid "TV guide"
 msgstr ""
 
-msgctxt "#30014"
-msgid "Browse the TV Guide"
-msgstr ""
-
 
 ### SUBMENUS
 msgctxt "#30053"
@@ -144,10 +136,6 @@ msgctxt "#30713"
 msgid "The requested video was not found in the guide."
 msgstr ""
 
-msgctxt "#30714"
-msgid "Local metadata is cleared."
-msgstr ""
-
 msgctxt "#30715"
 msgid "Updating metadata"
 msgstr ""

resources/language/resource.language.nl_nl/strings.po

@@ -19,10 +19,6 @@ msgctxt "#30003"
 msgid "Catalogue"
 msgstr "Catalogus"
 
-msgctxt "#30004"
-msgid "TV Shows and Movies listed by category"
-msgstr "Programma's en films per categorie"
-
 msgctxt "#30007"
 msgid "Channels"
 msgstr "Kanalen"
@@ -43,10 +39,6 @@ msgctxt "#30013"
 msgid "TV guide"
 msgstr "Tv-gids"
 
-msgctxt "#30014"
-msgid "Browse the TV Guide"
-msgstr "Doorblader de tv-gids"
-
 
 ### SUBMENUS
 msgctxt "#30053"
@@ -145,10 +137,6 @@ msgctxt "#30713"
 msgid "The requested video was not found in the guide."
 msgstr "De gevraagde video werd niet gevonden in de tv-gids."
 
-msgctxt "#30714"
-msgid "Local metadata is cleared."
-msgstr "De lokale metadata is verwijderd."
-
 msgctxt "#30715"
 msgid "Updating metadata"
 msgstr "Vernieuwen metadata"

tests/check_for_unused_translations.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+""" Quick and dirty way to check if all translations might be used. """
+
+# pylint: disable=invalid-name,superfluous-parens
+
+import subprocess
+import sys
+
+import polib
+
+error = 0
+
+# Load all python code from git
+code = subprocess.check_output(['git', 'grep', '', '--', 'resources/*.py', 'resources/settings.xml']).decode('utf-8')
+
+# Load po file
+po = polib.pofile('resources/language/resource.language.en_gb/strings.po')
+for entry in po:
+    # Extract msgctxt
+    msgctxt = entry.msgctxt.lstrip('#')
+
+    if msgctxt not in code:
+        print('No usage found for translation:')
+        print(entry)
+        error = 1
+
+sys.exit(error)