190 lines
9.0 KiB
Java
190 lines
9.0 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2019.
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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 com.google.common.collect.Streams;
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import com.google.common.graph.GraphBuilder;
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import com.google.common.graph.MutableGraph;
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import net.minecraftforge.forgespi.language.IModFileInfo;
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import net.minecraftforge.forgespi.language.IModInfo;
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import net.minecraftforge.fml.loading.EarlyLoadingException.ExceptionData;
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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 net.minecraftforge.fml.loading.toposort.CyclePresentException;
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import net.minecraftforge.fml.loading.toposort.TopologicalSort;
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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.logging.log4j.util.StringBuilderFormattable;
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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.Collection;
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import java.util.Collections;
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import java.util.Comparator;
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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.concurrent.atomic.AtomicInteger;
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import java.util.function.Function;
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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.forEach(ModFile::identifyLanguage);
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}
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@SuppressWarnings("UnstableApiUsage")
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private void sort()
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{
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// lambdas are identity based, so sorting them is impossible unless you hold reference to them
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final MutableGraph<ModFileInfo> graph = GraphBuilder.directed().build();
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AtomicInteger counter = new AtomicInteger();
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Map<IModFileInfo, Integer> infos = modFiles.stream().map(ModFile::getModFileInfo).collect(Collectors.toMap(Function.identity(), (e) -> counter.incrementAndGet()));
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infos.keySet().forEach(i -> graph.addNode((ModFileInfo) i));
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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(graph, dep));
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final List<ModFileInfo> sorted;
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try
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{
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sorted = TopologicalSort.topologicalSort(graph, Comparator.comparing(infos::get));
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}
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catch (CyclePresentException e)
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{
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Set<Set<ModFileInfo>> cycles = e.getCycles();
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LOGGER.error(LOADING, () -> ((StringBuilderFormattable) (buffer -> {
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buffer.append("Mod Sorting failed.\n");
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buffer.append("Detected Cycles: ");
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buffer.append(cycles);
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buffer.append('\n');
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})));
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List<ExceptionData> dataList = cycles.stream()
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.map(Set::stream)
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.map(stream -> stream
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.flatMap(modFileInfo -> modFileInfo.getMods().stream()
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.map(IModInfo::getModId)).collect(Collectors.toList()))
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.map(list -> new ExceptionData("fml.modloading.cycle", list))
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.collect(Collectors.toList());
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throw new EarlyLoadingException("Sorting error", e, dataList);
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}
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this.sortedList = sorted.stream().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(ModFileInfo::getFile).collect(Collectors.toList());
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}
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@SuppressWarnings("UnstableApiUsage")
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private void addDependency(MutableGraph<ModFileInfo> topoGraph, IModInfo.ModVersion dep)
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{
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final ModFileInfo self = (ModFileInfo)dep.getOwner().getOwningFile();
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final ModInfo targetModInfo = modIdNameLookup.get(dep.getModId());
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// soft dep that doesn't exist. Just return. No edge required.
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if (targetModInfo == null) return;
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final ModFileInfo target = targetModInfo.getOwningFile();
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if (self == target)
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return; // in case a jar has two mods that have dependencies between
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switch (dep.getOrdering()) {
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case BEFORE:
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topoGraph.putEdge(self, target);
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break;
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case AFTER:
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topoGraph.putEdge(target, self);
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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 = Stream.concat(DefaultModInfos.getModInfos().stream(), 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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