92 lines
3.2 KiB
Java
92 lines
3.2 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2020.
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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 static net.minecraftforge.fml.loading.LogMarkers.CORE;
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import java.io.IOException;
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import java.net.URL;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.Enumeration;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.function.Predicate;
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import java.util.stream.Collectors;
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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 com.google.common.base.Predicates;
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import net.minecraftforge.fml.loading.LibraryFinder;
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import net.minecraftforge.fml.loading.moddiscovery.AbstractJarFileLocator;
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import net.minecraftforge.fml.loading.moddiscovery.ModFile;
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import net.minecraftforge.forgespi.locating.IModFile;
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public class ClasspathLocator extends AbstractJarFileLocator {
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private static final Logger LOGGER = LogManager.getLogger();
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private static final String MODS_TOML = "META-INF/mods.toml";
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private static final String MANIFEST = "META-INF/MANIFEST.MF";
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private Set<Path> modCoords;
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@Override
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public List<IModFile> scanMods() {
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return modCoords.stream().
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map(mc -> ModFile.newFMLInstance(mc, this)).
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peek(f->modJars.compute(f, (mf, fs)->createFileSystem(mf))).
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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 "userdev classpath";
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}
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@Override
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public void initArguments(Map<String, ?> arguments) {
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try {
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modCoords = new LinkedHashSet<>();
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locateMods(MODS_TOML, "classpath_mod", Predicates.alwaysTrue());
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locateMods(MANIFEST, "manifest_jar", path -> findManifest(path).map(m -> m.getMainAttributes().getValue(ModFile.TYPE)).isPresent());
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} catch (IOException e) {
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LOGGER.fatal(CORE,"Error trying to find resources", e);
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throw new RuntimeException("wha?", e);
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}
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}
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private void locateMods(String resource, String name, Predicate<Path> filter) throws IOException {
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final Enumeration<URL> modsTomls = ClassLoader.getSystemClassLoader().getResources(resource);
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while (modsTomls.hasMoreElements()) {
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URL url = modsTomls.nextElement();
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Path path = LibraryFinder.findJarPathFor(resource, name, url);
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if (Files.isDirectory(path))
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continue;
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if (filter.test(path)) {
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LOGGER.debug(CORE, "Found classpath mod: {}", path);
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this.modCoords.add(path);
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}
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}
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}
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}
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