net.minecraftforge.gradle.mcp.util.MCPWrapper Maven / Gradle / Ivy

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/*
 * ForgeGradle
 * Copyright (C) 2018 Forge Development LLC
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
 * USA
 */

package net.minecraftforge.gradle.mcp.util;

import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.Map;
import java.util.zip.ZipFile;

import org.gradle.api.Project;

import com.google.common.base.Joiner;
import com.google.common.collect.Maps;

import net.minecraftforge.gradle.common.config.MCPConfigV2;
import net.minecraftforge.gradle.common.util.HashFunction;
import net.minecraftforge.gradle.common.util.Utils;

public class MCPWrapper {
    private final String hash;
    private final File data;
    private final File root;
    private final MCPConfigV2 config;
    protected final Map runtimes = Maps.newHashMap();

    public MCPWrapper(File data, File root) throws IOException {
        this(HashFunction.SHA1.hash(data), data, root);
    }

    public MCPWrapper(String hash, File data, File root) throws IOException {
        this.hash = hash;
        this.data = data;
        this.root = root;
        this.config = MCPConfigV2.getFromArchive(data);
    }

    public MCPRuntime getRuntime(Project project, String side) {
        MCPRuntime ret = runtimes.get(side);
        if (ret == null) {
            ret = new MCPRuntime(project, data, config, side, new File(root, side), Collections.emptyMap());
            runtimes.put(side, ret);
        }
        return ret;
    }

    public File getZip() {
        return data;
    }

    public String getHash() {
        return this.hash;
    }

    public MCPConfigV2 getConfig() {
        return this.config;
    }

    public File getRoot() {
        return this.root;
    }

    public void extractData(File target, String... path) throws IOException {
        String name = config.getData(path);
        if (name == null)
            throw new IOException("Unknown MCP Entry: " + Joiner.on("/").join(path));

        try (ZipFile zip = new ZipFile(data)) {
            Utils.extractFile(zip, name, target);
        }
    }

    public byte[] getData(String... path) throws IOException {
        String name = config.getData(path);
        if (name == null)
            throw new IOException("Unknown MCP Entry: " + Joiner.on("/").join(path));
        return Utils.getZipData(data, name);
    }
}