1 files changed, 77 insertions, 0 deletions
diff --git a/fbreader/src/migration/Migration.cpp b/fbreader/src/migration/Migration.cpp
new file mode 100644
index 0000000..172209d
--- /dev/null
+++ b/fbreader/src/migration/Migration.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2008-2012 Geometer Plus <[email protected]>
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <cstdlib>
+
+#include <ZLStringUtil.h>
+
+#include "../options/FBCategoryKey.h"
+
+#include "Migration.h"
+
+void Migration::moveOption(
+	const ZLCategoryKey &oldCategory, const std::string &oldGroup, const std::string &oldName,
+	const ZLCategoryKey &newCategory, const std::string &newGroup, const std::string &newName,
+	const std::string &defaultValue
+) {
+	ZLStringOption newOption(newCategory, newGroup, newName, defaultValue);
+	const std::string newValue = newOption.value();
+	ZLStringOption oldOption(oldCategory, oldGroup, oldName, newValue);
+	const std::string oldValue = oldOption.value();
+	if (newValue != oldValue) {
+		newOption.setValue(oldValue);
+		oldOption.setValue(newValue);
+	}
+}
+
+bool Migration::isLikeToFileName(const std::string &str) {
+	return
+		ZLStringUtil::stringStartsWith(str, "/") ||
+		ZLStringUtil::stringStartsWith(str, "\\\\") ||
+		((str.length() > 2) && (str.substr(1, 2) == ":\\"));
+}
+
+Migration::Migration(const std::string &version) : myVersion(version) {
+}
+
+Migration::~Migration() {
+}
+
+int Migration::extractVersionInformation(const std::string &name) {
+	int major = std::atoi(name.c_str());
+	int minor = 0;
+	int point = 0;
+	int index = name.find('.');
+	if (index > 0) {
+		minor = std::atoi(name.c_str() + index + 1);
+		index = name.find('.', index + 1);
+		if (index > 0) {
+			point = std::atoi(name.c_str() + index + 1);
+		}
+	}
+	return 10000 * major + 100 * minor + point;
+}
+
+void Migration::doMigration() {
+	ZLStringOption versionOption(FBCategoryKey::SYSTEM, "Version", "FBReaderVersion", "0");
+	if (extractVersionInformation(versionOption.value()) <
+			extractVersionInformation(myVersion)) {
+		doMigrationInternal();
+	}
+}