Hand SlimeLauncher the extracted metadata zip, cache extraction

src/main/java/net/minecraftforge/gradle/internal/SlimeLauncherEclipseConfiguration.java

@@ -137,7 +137,7 @@ static TaskProvider<SlimeLauncherEclipseConfiguration> register(Project project,
 
             task.getCacheDir().set(task.getObjects().directoryProperty().value(task.globalCaches().dir("slime-launcher/cache/%s".formatted(mcdep.getPath())).map(task.problems.ensureFileLocation())));
             task.getLocalCacheDir().set(task.getObjects().directoryProperty().value(task.localCaches().dir("slime-launcher/cache/%s".formatted(task.getName())).map(task.problems.ensureFileLocation())));
-            task.getMetadata().setFrom(metadata.map(SlimeLauncherMetadata::getMetadata));
+            task.getMetadata().setFrom(metadata.map(SlimeLauncherMetadata::getOutputDirectory));
             task.getRunsJson().set(metadata.flatMap(SlimeLauncherMetadata::getRunsJson));
 
             task.getOptions().set(options);

src/main/java/net/minecraftforge/gradle/internal/SlimeLauncherExec.java

@@ -61,7 +61,7 @@ static TaskProvider<SlimeLauncherExec> register(Project project, SourceSet sourc
 
             task.getCacheDir().set(task.getObjectFactory().directoryProperty().value(task.globalCaches().dir("slime-launcher/cache/%s".formatted(mcdep.getPath())).map(task.problems.ensureFileLocation())));
             task.getLocalCacheDir().set(task.getObjectFactory().directoryProperty().value(task.localCaches().dir("slime-launcher/cache/%s".formatted(task.getName())).map(task.problems.ensureFileLocation())));
-            task.getMetadata().setFrom(metadata.map(SlimeLauncherMetadata::getMetadata));
+            task.getMetadata().setFrom(metadata.map(SlimeLauncherMetadata::getOutputDirectory));
             task.getRunsJson().set(metadata.flatMap(SlimeLauncherMetadata::getRunsJson));
 
             task.getOptions().set(options);

src/main/java/net/minecraftforge/gradle/internal/SlimeLauncherMetadata.java

@@ -6,22 +6,26 @@
 
 import org.gradle.api.DefaultTask;
 import org.gradle.api.Project;
+import org.gradle.api.file.ArchiveOperations;
 import org.gradle.api.file.ConfigurableFileCollection;
+import org.gradle.api.file.DirectoryProperty;
+import org.gradle.api.file.FileSystemOperations;
 import org.gradle.api.file.RegularFileProperty;
+import org.gradle.api.tasks.CacheableTask;
 import org.gradle.api.tasks.InputFiles;
+import org.gradle.api.tasks.OutputDirectory;
 import org.gradle.api.tasks.OutputFile;
+import org.gradle.api.tasks.PathSensitive;
+import org.gradle.api.tasks.PathSensitivity;
 import org.gradle.api.tasks.TaskAction;
 import org.gradle.api.tasks.TaskProvider;
 
 import javax.inject.Inject;
-import java.io.FileInputStream;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
-import java.nio.file.StandardCopyOption;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipInputStream;
 
+@CacheableTask
 abstract class SlimeLauncherMetadata extends DefaultTask implements ForgeGradleTask {
     static TaskProvider<SlimeLauncherMetadata> register(Project project, MinecraftDependencyInternal mcdep) {
         var taskName = "slimeLauncherMetadataFor" + Util.dependencyToCamelCase(mcdep.getModule());
@@ -31,35 +35,41 @@ static TaskProvider<SlimeLauncherMetadata> register(Project project, MinecraftDe
         });
     }
 
+    @PathSensitive(PathSensitivity.NONE)
     protected abstract @InputFiles ConfigurableFileCollection getMetadata();
 
+    protected abstract @OutputDirectory DirectoryProperty getOutputDirectory();
+
     protected abstract @OutputFile RegularFileProperty getRunsJson();
 
+    protected abstract @Inject ArchiveOperations getArchiveOperations();
+
+    protected abstract @Inject FileSystemOperations getFileSystemOperations();
+
     @Inject
     public SlimeLauncherMetadata() {
-        this.getRunsJson().convention(this.getDefaultOutputDirectory().map(d -> d.file("runs.json")));
+        this.getOutputDirectory().convention(this.getDefaultOutputDirectory());
+        this.getRunsJson().convention(
+                this.getOutputDirectory().map(d -> d.dir("launcher").file("runs.json"))
+        );
     }
 
     @TaskAction
     protected void exec() throws IOException {
         var archive = this.getMetadata().getSingleFile();
-        var json = this.getRunsJson().getAsFile().get().toPath();
+        var outputDir = this.getOutputDirectory().get();
 
-        boolean foundRuns = false;
-        try (var zin = new ZipInputStream(new FileInputStream(archive))) {
-            for (ZipEntry entry; ((entry = zin.getNextEntry()) != null); ) {
-                if (!entry.getName().startsWith("launcher/"))
-                    continue;
-                if (entry.getName().equals("launcher/runs.json")) {
-                    Files.copy(zin, json, StandardCopyOption.REPLACE_EXISTING);
-                    foundRuns = true;
-                }
-            }
-        }
+        this.getFileSystemOperations().sync(spec -> {
+            spec.from(this.getArchiveOperations().zipTree(archive));
+            spec.into(outputDir);
+        });
 
-        // If we don't find a metadata file, write an empty runs
-        // This happens when using a 'vanilla' minecraft dependency
-        if (!foundRuns)
+        // Write an empty runs.json if it doesn't exist
+        // This happens when using a 'vanilla' Minecraft dependency
+        var json = this.getRunsJson().getAsFile().get().toPath();
+        if (!Files.exists(json)) {
+            Files.createDirectories(json.getParent());
             Files.writeString(json, "{}", StandardCharsets.UTF_8);
+        }
     }
 }

src/main/java/net/minecraftforge/gradle/internal/Tools.java

@@ -9,7 +9,7 @@
 final class Tools {
     private Tools() { }
 
-    static final Tool SLIMELAUNCHER = Tool.ofForge("slimelauncher", "net.minecraftforge:slime-launcher:0.2.2", 8, "net.minecraftforge.launcher.Main");
+    static final Tool SLIMELAUNCHER = Tool.ofForge("slimelauncher", "net.minecraftforge:slime-launcher:0.2.3", 8, "net.minecraftforge.launcher.Main");
 
-    static final Tool MAVENIZER = Tool.ofForge("mavenizer", "net.minecraftforge:minecraft-mavenizer:0.5.19", 25, "net.minecraftforge.mcmaven.cli.Main");
+    static final Tool MAVENIZER = Tool.ofForge("mavenizer", "net.minecraftforge:minecraft-mavenizer:0.5.21", 25, "net.minecraftforge.mcmaven.cli.Main");
 }