Remove legacy langpacks.

Telegram/Resources/qrc/telegram.qrc

@@ -68,12 +68,4 @@
   <qresource prefix="/misc">
     <file alias="default_shortcuts-custom.json">../default_shortcuts-custom.json</file>
   </qresource>
-  <qresource prefix="/langs">
-    <file alias="lang_it.strings">../langs/lang_it.strings</file>
-    <file alias="lang_es.strings">../langs/lang_es.strings</file>
-    <file alias="lang_de.strings">../langs/lang_de.strings</file>
-    <file alias="lang_nl.strings">../langs/lang_nl.strings</file>
-    <file alias="lang_pt_BR.strings">../langs/lang_pt_BR.strings</file>
-    <file alias="lang_ko.strings">../langs/lang_ko.strings</file>
-  </qresource>
 </RCC>

Telegram/SourceFiles/lang/lang_cloud_manager.cpp

@@ -240,23 +240,11 @@ void CloudManager::setSuggestedLanguage(const QString &langCode) {
 		_languageWasSuggested = true;
 		_firstLanguageSuggestion.notify();
 
-		if (AuthSession::Exists() && _langpack.id().isEmpty() && !_suggestedLanguage.isEmpty()) {
-			auto isLegacy = [](const QString &languageId) {
-				for (auto &legacyString : kLegacyLanguages) {
-					auto legacyId = str_const_toString(legacyString);
-					if (ConvertLegacyLanguageId(legacyId) == languageId) {
-						return true;
-					}
-				}
-				return false;
-			};
-
-			// The old available languages (de/it/nl/ko/es/pt_BR) won't be
-			// suggested anyway, because everyone saw the suggestion in intro.
-			if (!isLegacy(_suggestedLanguage)) {
-				_offerSwitchToId = _suggestedLanguage;
-				offerSwitchLangPack();
-			}
+		if (AuthSession::Exists()
+			&& _langpack.id().isEmpty()
+			&& !_suggestedLanguage.isEmpty()) {
+			_offerSwitchToId = _suggestedLanguage;
+			offerSwitchLangPack();
 		}
 	}
 }

Telegram/SourceFiles/lang/lang_instance.cpp

@@ -294,7 +294,6 @@ void Instance::reset(const Language &data) {
 	_name = data.name;
 	_nativeName = data.nativeName;
 
-	_legacyId = kLegacyLanguageNone;
 	_customFilePathAbsolute = QString();
 	_customFilePathRelative = QString();
 	_customFileContent = QByteArray();
@@ -603,46 +602,6 @@ bool Instance::loadFromCustomFile(const QString &filePath) {
 	return false;
 }
 
-void Instance::fillFromLegacy(int legacyId, const QString &legacyPath) {
-	if (legacyId == kLegacyDefaultLanguage) {
-		_legacyId = legacyId;
-
-		// We suppose that user didn't switch to the default language,
-		// so we will suggest him to switch to his language if we get it.
-		//
-		// The old available languages (de/it/nl/ko/es/pt_BR) won't be
-		// suggested anyway, because everyone saw the suggestion in intro.
-		_id = QString();// str_const_toString(kLegacyLanguages[legacyId]);
-	} else if (legacyId == kLegacyCustomLanguage) {
-		auto absolutePath = QFileInfo(legacyPath).absoluteFilePath();
-		auto relativePath = QDir().relativeFilePath(absolutePath);
-		auto content = Lang::FileParser::ReadFile(absolutePath, relativePath);
-		if (!content.isEmpty()) {
-			_legacyId = legacyId;
-			fillFromCustomContent(absolutePath, relativePath, content);
-		}
-	} else if (legacyId > kLegacyDefaultLanguage && legacyId < base::array_size(kLegacyLanguages)) {
-		auto languageId = str_const_toString(kLegacyLanguages[legacyId]);
-		auto resourcePath = qsl(":/langs/lang_") + languageId + qsl(".strings");
-		auto content = Lang::FileParser::ReadFile(resourcePath, resourcePath);
-		if (!content.isEmpty()) {
-			_legacyId = legacyId;
-			_id = languageId;
-			_version = 0;
-			loadFromContent(content);
-		}
-	}
-	_id = LanguageIdOrDefault(ConvertLegacyLanguageId(_id));
-	if (!isCustom()) {
-		_pluralId = _id;
-	}
-	_name = _nativeName = QString();
-	_base = nullptr;
-	updatePluralRules();
-
-	_idChanges.fire_copy(_id);
-}
-
 // SetCallback takes two QByteArrays: key, value.
 // It is called for all key-value pairs in string.
 // ResetCallback takes one QByteArray: key.

Telegram/SourceFiles/lang/lang_instance.h

@@ -13,24 +13,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 namespace Lang {
 
-constexpr auto kLegacyLanguageNone = -2;
-constexpr auto kLegacyCustomLanguage = -1;
-constexpr auto kLegacyDefaultLanguage = 0;
-
-constexpr str_const kLegacyLanguages[] = {
-	"en",
-	"it",
-	"es",
-	"de",
-	"nl",
-	"pt_BR",
-	"ko",
-};
-
-inline QString ConvertLegacyLanguageId(const QString &languageId) {
-	return languageId.toLower().replace('_', '-');
-}
-
 struct Language {
 	QString id;
 	QString pluralId;
@@ -91,7 +73,6 @@ public:
 
 	QByteArray serialize() const;
 	void fillFromSerialized(const QByteArray &data, int dataAppVersion);
-	void fillFromLegacy(int legacyId, const QString &legacyPath);
 
 	void applyDifference(
 		Pack pack,
@@ -144,7 +125,6 @@ private:
 	QString _id, _pluralId;
 	rpl::event_stream<QString> _idChanges;
 	QString _name, _nativeName;
-	int _legacyId = kLegacyLanguageNone;
 	QString _customFilePathAbsolute;
 	QString _customFilePathRelative;
 	QByteArray _customFileContent;

Telegram/SourceFiles/storage/localstorage.cpp

@@ -841,17 +841,11 @@ void _readLocations() {
 }
 
 struct ReadSettingsContext {
-	int legacyLanguageId = Lang::kLegacyLanguageNone;
-	QString legacyLanguageFile;
 	MTP::DcOptions dcOptions;
 };
 
 void applyReadContext(ReadSettingsContext &&context) {
 	Core::App().dcOptions()->addFromOther(std::move(context.dcOptions));
-	if (context.legacyLanguageId != Lang::kLegacyLanguageNone) {
-		Lang::Current().fillFromLegacy(context.legacyLanguageId, context.legacyLanguageFile);
-		writeLangPack();
-	}
 }
 
 QByteArray serializeCallSettings(){
@@ -1478,16 +1472,12 @@ bool _readSetting(quint32 blockId, QDataStream &stream, int version, ReadSetting
 		qint32 v;
 		stream >> v;
 		if (!_checkStreamStatus(stream)) return false;
-
-		context.legacyLanguageId = v;
 	} break;
 
 	case dbiLangFileOld: {
 		QString v;
 		stream >> v;
 		if (!_checkStreamStatus(stream)) return false;
-
-		context.legacyLanguageFile = v;
 	} break;
 
 	case dbiWindowPosition: {