pollymc/api/logic/BaseInstaller.cpp

/* Copyright 2013-2017 MultiMC Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <QFile>

#include "BaseInstaller.h"
#include "minecraft/MinecraftInstance.h"

BaseInstaller::BaseInstaller()
{

}

bool BaseInstaller::isApplied(MinecraftInstance *on)
{
	return QFile::exists(filename(on->instanceRoot()));
}

bool BaseInstaller::add(MinecraftInstance *to)
{
	if (!patchesDir(to->instanceRoot()).exists())
	{
		QDir(to->instanceRoot()).mkdir("patches");
	}

	if (isApplied(to))
	{
		if (!remove(to))
		{
			return false;
		}
	}

	return true;
}

bool BaseInstaller::remove(MinecraftInstance *from)
{
	return QFile::remove(filename(from->instanceRoot()));
}

QString BaseInstaller::filename(const QString &root) const
{
	return patchesDir(root).absoluteFilePath(id() + ".json");
}
QDir BaseInstaller::patchesDir(const QString &root) const
{
	return QDir(root + "/patches/");
}