Replace MetaLang with codegen_lang.

Telegram/SourceFiles/codegen/lang/processor.cpp

@@ -0,0 +1,84 @@
+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#include "codegen/lang/processor.h"
+
+#include <QtCore/QDir>
+#include <QtCore/QFileInfo>
+#include "codegen/common/cpp_file.h"
+#include "codegen/lang/parsed_file.h"
+#include "codegen/lang/generator.h"
+
+namespace codegen {
+namespace lang {
+namespace {
+
+constexpr int kErrorCantWritePath = 821;
+
+} // namespace
+
+Processor::Processor(const Options &options)
+: parser_(std::make_unique<ParsedFile>(options))
+, options_(options) {
+}
+
+int Processor::launch() {
+	if (!parser_->read()) {
+		return -1;
+	}
+
+	if (!write(parser_->getResult())) {
+		return -1;
+	}
+
+	return 0;
+}
+
+bool Processor::write(const Langpack &langpack) const {
+	bool forceReGenerate = false;
+	QDir dir(options_.outputPath);
+	if (!dir.mkpath(".")) {
+		common::logError(kErrorCantWritePath, "Command Line") << "can not open path for writing: " << dir.absolutePath().toStdString();
+		return false;
+	}
+
+	QFileInfo srcFile(options_.inputPath);
+	QString dstFilePath = dir.absolutePath() + "/lang_auto";
+
+	common::ProjectInfo project = {
+		"codegen_style",
+		srcFile.fileName(),
+		forceReGenerate
+	};
+
+	Generator generator(langpack, dstFilePath, project);
+	if (!generator.writeHeader()) {
+		return false;
+	}
+	if (!generator.writeSource()) {
+		return false;
+	}
+	return true;
+}
+
+Processor::~Processor() = default;
+
+} // namespace lang
+} // namespace codegen