154 lines
7.4 KiB
Java
154 lines
7.4 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.fml.loading;
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import net.minecraftforge.fml.loading.toposort.TopologicalSort;
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import net.minecraftforge.fml.language.IModInfo;
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import net.minecraftforge.fml.loading.moddiscovery.ModFile;
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import net.minecraftforge.fml.loading.moddiscovery.ModFileInfo;
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import net.minecraftforge.fml.loading.moddiscovery.ModInfo;
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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 org.apache.maven.artifact.versioning.ArtifactVersion;
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import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
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import java.util.*;
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import java.util.function.Function;
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import java.util.function.Supplier;
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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.loading.LogMarkers.LOADING;
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public class ModSorter
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{
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private static final Logger LOGGER = LogManager.getLogger();
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private List<ModFile> modFiles;
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private List<ModInfo> sortedList;
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private Map<String, ModInfo> modIdNameLookup;
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private ModSorter(final List<ModFile> modFiles)
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{
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this.modFiles = modFiles;
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}
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public static LoadingModList sort(List<ModFile> mods)
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{
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final ModSorter ms = new ModSorter(mods);
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EarlyLoadingException earlyLoadingException = null;
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try {
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ms.findLanguages();
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ms.buildUniqueList();
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ms.verifyDependencyVersions();
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ms.sort();
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} catch (EarlyLoadingException ele) {
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earlyLoadingException = ele;
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ms.sortedList = Collections.emptyList();
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}
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return LoadingModList.of(ms.modFiles, ms.sortedList, earlyLoadingException);
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}
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private void findLanguages() {
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modFiles.stream().forEach(mf->mf.identifyLanguage());
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}
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private void sort()
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{
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final TopologicalSort.DirectedGraph<Supplier<ModFileInfo>> topoGraph = new TopologicalSort.DirectedGraph<>();
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modFiles.stream().map(ModFile::getModFileInfo).map(ModFileInfo.class::cast).forEach(mi -> topoGraph.addNode(() -> mi));
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modFiles.stream().map(ModFile::getModInfos).flatMap(Collection::stream).
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map(IModInfo::getDependencies).flatMap(Collection::stream).
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forEach(dep -> addDependency(topoGraph, dep));
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final List<Supplier<ModFileInfo>> sorted;
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try
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{
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sorted = TopologicalSort.topologicalSort(topoGraph);
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}
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catch (TopologicalSort.TopoSortException e)
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{
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TopologicalSort.TopoSortException.TopoSortExceptionData<Supplier<ModInfo>> data = e.getData();
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LOGGER.error(LOADING, ()-> data);
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throw new EarlyLoadingException("Sorting error", e, data.toExceptionData(mi-> mi.get().getModId()));
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}
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this.sortedList = sorted.stream().map(Supplier::get).map(ModFileInfo::getMods).
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flatMap(Collection::stream).map(ModInfo.class::cast).collect(Collectors.toList());
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this.modFiles = sorted.stream().map(Supplier::get).map(ModFileInfo::getFile).collect(Collectors.toList());
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}
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private void addDependency(TopologicalSort.DirectedGraph<Supplier<ModFileInfo>> topoGraph,IModInfo.ModVersion dep)
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{
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switch (dep.getOrdering()) {
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case BEFORE:
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topoGraph.addEdge(()->(ModFileInfo)dep.getOwner().getOwningFile(), ()->modIdNameLookup.get(dep.getModId()).getOwningFile());
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break;
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case AFTER:
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topoGraph.addEdge(()->modIdNameLookup.get(dep.getModId()).getOwningFile(), ()->(ModFileInfo)dep.getOwner().getOwningFile());
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break;
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case NONE:
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break;
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}
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}
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private void buildUniqueList()
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{
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final Stream<ModInfo> modInfos = modFiles.stream().map(ModFile::getModInfos).flatMap(Collection::stream).map(ModInfo.class::cast);
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final Map<String, List<ModInfo>> modIds = modInfos.collect(Collectors.groupingBy(IModInfo::getModId));
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// TODO: make this figure out dupe handling better
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final List<Map.Entry<String, List<ModInfo>>> dupedMods = modIds.entrySet().stream().filter(e -> e.getValue().size() > 1).collect(Collectors.toList());
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if (!dupedMods.isEmpty()) {
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final List<EarlyLoadingException.ExceptionData> duplicateModErrors = dupedMods.stream().
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map(dm -> new EarlyLoadingException.ExceptionData("fml.modloading.dupedmod", dm.getValue().get(0))).
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collect(Collectors.toList());
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throw new EarlyLoadingException("Duplicate mods found", null, duplicateModErrors);
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}
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modIdNameLookup = modIds.entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, e -> e.getValue().get(0)));
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}
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private void verifyDependencyVersions()
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{
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final Map<String, ArtifactVersion> modVersions = Stream.concat(modFiles.stream().map(ModFile::getModInfos).
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flatMap(Collection::stream), DefaultModInfos.getModInfos().stream()).collect(Collectors.toMap(IModInfo::getModId, IModInfo::getVersion));
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final Map<IModInfo, List<IModInfo.ModVersion>> modVersionDependencies = modFiles.stream().
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map(ModFile::getModInfos).flatMap(Collection::stream).
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collect(Collectors.groupingBy(Function.identity(), Java9BackportUtils.flatMapping(e -> e.getDependencies().stream(), Collectors.toList())));
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final Set<IModInfo.ModVersion> mandatoryModVersions = modVersionDependencies.values().stream().flatMap(Collection::stream).
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filter(mv -> mv.isMandatory() && mv.getSide().isCorrectSide()).collect(Collectors.toSet());
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LOGGER.debug(LOADING, "Found {} mandatory requirements", mandatoryModVersions.size());
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final Set<IModInfo.ModVersion> missingVersions = mandatoryModVersions.stream().filter(mv->this.modVersionMatches(mv, modVersions)).collect(Collectors.toSet());
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LOGGER.debug(LOADING, "Found {} mandatory mod requirements missing", missingVersions.size());
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if (!missingVersions.isEmpty()) {
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final List<EarlyLoadingException.ExceptionData> exceptionData = missingVersions.stream().map(mv ->
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new EarlyLoadingException.ExceptionData("fml.modloading.missingdependency", mv.getModId(),
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mv.getOwner().getModId(), mv.getVersionRange(), modVersions.getOrDefault(mv.getModId(), new DefaultArtifactVersion("null")))).
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collect(Collectors.toList());
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throw new EarlyLoadingException("Missing mods", null, exceptionData);
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}
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}
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private boolean modVersionMatches(final IModInfo.ModVersion mv, final Map<String, ArtifactVersion> modVersions)
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{
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return !modVersions.containsKey(mv.getModId()) || !mv.getVersionRange().containsVersion(modVersions.get(mv.getModId()));
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}
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}
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