net.fabricmc.installer.installer.LocalVersionInstaller.java Source code

Introduction

Here is the source code for net.fabricmc.installer.installer.LocalVersionInstaller.java

Source

/*
 * Copyright (c) 2016, 2017, 2018 FabricMC
 *
 * 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.
 */

package net.fabricmc.installer.installer;

import net.fabricmc.installer.util.IInstallerProgress;
import net.fabricmc.installer.util.Translator;
import org.apache.commons.io.FileUtils;

import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;
import java.io.File;
import java.util.Optional;
import java.util.jar.Attributes;
import java.util.jar.JarFile;

/**
 * Created by modmuss50 on 15/05/2017.
 */
public class LocalVersionInstaller {
    public static void install(File mcDir, IInstallerProgress progress) throws Exception {
        JFileChooser fc = new JFileChooser();
        fc.setDialogTitle(Translator.getString("install.client.selectCustomJar"));
        fc.setFileFilter(new FileNameExtensionFilter("Jar Files", "jar"));
        if (fc.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
            File inputFile = fc.getSelectedFile();

            JarFile jarFile = new JarFile(inputFile);
            Attributes attributes = jarFile.getManifest().getMainAttributes();
            String mcVersion = attributes.getValue("MinecraftVersion");
            Optional<String> stringOptional = ClientInstaller.isValidInstallLocation(mcDir, mcVersion);
            jarFile.close();
            if (stringOptional.isPresent()) {
                throw new Exception(stringOptional.get());
            }
            ClientInstaller.install(mcDir, mcVersion, progress, inputFile);
        } else {
            throw new Exception("Failed to find jar");
        }

    }

    public static void installServer(File mcDir, IInstallerProgress progress) throws Exception {
        JFileChooser fc = new JFileChooser();
        fc.setDialogTitle(Translator.getString("install.client.selectCustomJar"));
        fc.setFileFilter(new FileNameExtensionFilter("Jar Files", "jar"));
        if (fc.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
            File inputFile = fc.getSelectedFile();

            JarFile jarFile = new JarFile(inputFile);
            Attributes attributes = jarFile.getManifest().getMainAttributes();
            String fabricVersion = attributes.getValue("FabricVersion");
            jarFile.close();
            File fabricJar = new File(mcDir, "fabric-" + fabricVersion + ".jar");
            if (fabricJar.exists()) {
                fabricJar.delete();
            }
            FileUtils.copyFile(inputFile, fabricJar);
            ServerInstaller.install(mcDir, fabricVersion, progress, fabricJar);
        } else {
            throw new Exception("Failed to find jar");
        }

    }

}