Add support for --launcher-meta-uri to NeoFormRuntimeTask for unobfuscated version support

README.md

@@ -662,6 +662,10 @@ neoFormRuntime {
     // Print more information when NFRT cannot use a cached result
     // Gradle Property: neoForge.neoFormRuntime.analyzeCacheMisses
     analyzeCacheMisses = true
+
+    // Overrides the launcher manifest URL used by NFRT to look up Minecraft versions
+    // Gradle Property: neoForge.neoFormRuntime.launcherManifestUrl
+    launcherManifestUrl = "https://.../version_manifest_v2.json"
 }
 ```
 

src/main/java/net/neoforged/nfrtgradle/NeoFormRuntimeExtension.java

@@ -21,6 +21,7 @@ public NeoFormRuntimeExtension(Project project) {
         getEnableCache().convention(PropertyUtils.getBooleanProperty(project, "neoForge.neoFormRuntime.enableCache").orElse(true));
         getVerbose().convention(PropertyUtils.getBooleanProperty(project, "neoForge.neoFormRuntime.verbose").orElse(false));
         getAnalyzeCacheMisses().convention(PropertyUtils.getBooleanProperty(project, "neoForge.neoFormRuntime.analyzeCacheMisses").orElse(false));
+        getLauncherManifestUrl().convention(PropertyUtils.getStringProperty(project, "neoForge.neoFormRuntime.launcherManifestUrl"));
     }
 
     /**
@@ -66,4 +67,12 @@ public NeoFormRuntimeExtension(Project project) {
      * <b>Gradle property:</b> {@code neoForge.neoFormRuntime.analyzeCacheMisses}.
      */
     public abstract Property<Boolean> getAnalyzeCacheMisses();
+
+    /**
+     * URL for the Minecraft Launcher manifest used to resolve Minecraft version information.
+     * <p>
+     * <b>Default:</b> {@code https://piston-meta.mojang.com/mc/game/version_manifest_v2.json}<br>
+     * <b>Gradle property:</b> {@code neoForge.neoFormRuntime.launcherManifestUrl}.
+     */
+    public abstract Property<String> getLauncherManifestUrl();
 }

src/main/java/net/neoforged/nfrtgradle/NeoFormRuntimePlugin.java

@@ -39,6 +39,7 @@ public void apply(Project project) {
         project.getTasks().withType(NeoFormRuntimeTask.class).configureEach(task -> {
             task.getNeoFormRuntime().convention(toolConfiguration);
             task.getVerbose().convention(extension.getVerbose());
+            task.getLauncherManifestUrl().convention(extension.getLauncherManifestUrl());
             // Every invocation of NFRT should inherit the tools it's using itself via Gradle
             task.addArtifactsToManifest(externalToolsConfiguration);
         });

src/main/java/net/neoforged/nfrtgradle/NeoFormRuntimeTask.java

@@ -22,6 +22,7 @@
 import org.gradle.api.tasks.Input;
 import org.gradle.api.tasks.InputFiles;
 import org.gradle.api.tasks.Internal;
+import org.gradle.api.tasks.Optional;
 import org.gradle.jvm.toolchain.JavaLanguageVersion;
 import org.gradle.jvm.toolchain.JavaToolchainService;
 import org.gradle.process.ExecOperations;
@@ -53,6 +54,14 @@ public abstract class NeoFormRuntimeTask extends DefaultTask {
     @InputFiles
     public abstract ConfigurableFileCollection getNeoFormRuntime();
 
+    /**
+     * URL for the Minecraft Launcher manifest used to resolve Minecraft version information.
+     * When none is given, it defaults to {@code https://piston-meta.mojang.com/mc/game/version_manifest_v2.json}.
+     */
+    @Input
+    @Optional
+    public abstract Property<String> getLauncherManifestUrl();
+
     /**
      * Enable verbose output for the NFRT engine. Defaults to false.
      */
@@ -125,6 +134,11 @@ public final void run(List<String> args) {
         realArgs.add(2, "--work-dir");
         realArgs.add(3, getWorkDirectory().get().getAsFile().getAbsolutePath());
 
+        if (getLauncherManifestUrl().isPresent()) {
+            realArgs.add("--launcher-meta-uri");
+            realArgs.add(getLauncherManifestUrl().get());
+        }
+
         if (getVerbose().get()) {
             realArgs.add("--verbose");
         }