net.minecraftforge.gradle.common.tasks.ApplyMappings Maven / Gradle / Ivy

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Minecraft mod development framework used by Forge and FML for the gradle build system adapted for mohist api.
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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.common.tasks;

import net.minecraftforge.gradle.common.util.McpNames;
import net.minecraftforge.gradle.common.util.Utils;

import org.apache.commons.io.IOUtils;
import org.gradle.api.DefaultTask;
import org.gradle.api.file.RegularFileProperty;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.InputFile;
import org.gradle.api.tasks.OutputFile;
import org.gradle.api.tasks.TaskAction;

import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;

public abstract class ApplyMappings extends DefaultTask {
    private boolean javadocs = false;
    private boolean lambdas = true;

    public ApplyMappings() {
        getOutput().convention(getProject().getLayout().getBuildDirectory().dir(getName()).map(s -> s.file("output.zip")));
    }

    @TaskAction
    public void apply() throws IOException {
        McpNames names = McpNames.load(getMappings().get().getAsFile());

        try (ZipFile zin = new ZipFile(getInput().get().getAsFile())) {
            try (FileOutputStream fos = new FileOutputStream(getOutput().get().getAsFile());
                 ZipOutputStream out = new ZipOutputStream(fos)) {
                zin.stream().forEach(e -> {
                    try {
                        out.putNextEntry(Utils.getStableEntry(e.getName()));
                        if (!e.getName().endsWith(".java")) {
                            IOUtils.copy(zin.getInputStream(e), out);
                        } else {
                            out.write(names.rename(zin.getInputStream(e), javadocs, lambdas).getBytes(StandardCharsets.UTF_8));
                        }
                        out.closeEntry();
                    } catch (IOException e1) {
                        throw new RuntimeException(e1);
                    }
                });
            }
        }
    }

    @InputFile
    public abstract RegularFileProperty getInput();

    @InputFile
    public abstract RegularFileProperty getMappings();

    @OutputFile
    public abstract RegularFileProperty getOutput();

    @Input
    public boolean getJavadocs() {
        return this.javadocs;
    }

    public void setJavadocs(boolean javadocs) {
        this.javadocs = javadocs;
    }

    @Input
    public boolean getLambdas() {
        return this.lambdas;
    }

    public void setLambdas(boolean lambdas) {
        this.lambdas = lambdas;
    }
}