159 lines
5.3 KiB
Java
159 lines
5.3 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2018.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.userdev;
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import com.google.common.collect.Maps;
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import com.google.common.collect.Sets;
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import net.minecraftforge.fml.loading.moddiscovery.IModLocator;
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import net.minecraftforge.fml.loading.moddiscovery.ModFile;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import java.io.File;
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import java.io.IOException;
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import java.net.URISyntaxException;
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import java.net.URL;
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import java.nio.file.*;
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import java.util.*;
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import java.util.function.Consumer;
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import java.util.jar.Manifest;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import static net.minecraftforge.fml.Logging.SCAN;
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public class ClasspathLocator implements IModLocator
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{
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private static final Logger LOGGER = LogManager.getLogger();
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private static final String COREMODS = "META-INF/coremods.json";
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private static final String MODS = "META-INF/mods.toml";
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private Map<Path, List<Path>> paths = Maps.newHashMap();
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public ClasspathLocator() {}
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@Override
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public List<ModFile> scanMods() {
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Set<URL> modUrls = Sets.newHashSet();
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ClassLoader loader = Thread.currentThread().getContextClassLoader();
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try
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{
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modUrls.addAll(Collections.list(ClassLoader.getSystemResources(COREMODS)));
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modUrls.addAll(Collections.list(loader.getResources(COREMODS)));
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modUrls.addAll(Collections.list(ClassLoader.getSystemResources(MODS)));
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modUrls.addAll(Collections.list(loader.getResources(MODS)));
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}
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catch (IOException e)
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{
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e.printStackTrace();
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}
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return modUrls.stream().map((url) -> {
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try
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{
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// We got URLs including "META-INF/<something", so get two components up.
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return new File(url.toURI()).toPath().getParent().getParent();
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}
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catch (URISyntaxException e)
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{
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e.printStackTrace();
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}
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return null;
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}).filter(Objects::nonNull).distinct()
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.map(path -> new ModFile(path, this))
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.collect(Collectors.toList());
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}
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@Override
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public String name() {
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return "classpath mods";
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}
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@Override
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public Path findPath(final ModFile modFile, final String... path) {
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if (path.length < 1) {
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throw new IllegalArgumentException("Missing path");
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}
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Path filePath = modFile.getFilePath();
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Path classesRoot = getClassesPath(filePath);
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String[] tail = Arrays.copyOfRange(path, 1, path.length);
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Path classPath = classesRoot.resolve(classesRoot.getFileSystem().getPath(path[0], tail));
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if(Files.exists(classPath))
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{
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return classPath;
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}
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return filePath.resolve(filePath.getFileSystem().getPath(path[0], tail));
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}
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@Override
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public void scanFile(final ModFile modFile, final Consumer<Path> pathConsumer) {
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LOGGER.debug(SCAN,"Scanning classpath");
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Path filePath = modFile.getFilePath();
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Path scanPath = getClassesPath(filePath);
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try (Stream<Path> files = Files.find(scanPath, Integer.MAX_VALUE, (p, a) -> p.getNameCount() > 0 && p.getFileName().toString().endsWith(".class"))) {
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files.forEach(pathConsumer);
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} catch (IOException e) {
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e.printStackTrace();
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}
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LOGGER.debug(SCAN,"Classpath scan complete");
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}
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private Path getClassesPath(Path filePath)
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{
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Path classesPath = filePath;
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// Hack 1: When running from within intellij, we get
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// "out/production/resources" + "out/production/classes"
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if(filePath.getNameCount() >= 1 && filePath.getName(filePath.getNameCount()-1).toString().equals("resources"))
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{
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classesPath = filePath.getParent().resolve("classes");
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}
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// Hack 2: When running from gradle, we get
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// "build/resources/<sourceset>" + "build/classes/<language>/<sourceset>"
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else if(filePath.getNameCount() >= 2 && filePath.getName(filePath.getNameCount()-2).toString().equals("resources"))
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{
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// We'll scan all the subdirectories for languages and sourcesets, hopefully that works...
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classesPath = filePath.getParent().getParent().resolve("classes");
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}
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return classesPath;
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}
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@Override
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public String toString()
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{
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return "{Classpath locator}";
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}
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@Override
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public Optional<Manifest> findManifest(Path file)
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{
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return Optional.empty();
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}
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@Override
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public void initArguments(final Map<String, ?> arguments) {
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}
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}
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