[Fix]: Update DiffPatch and introduce testing

build.gradle

@@ -78,6 +78,10 @@ subprojects.forEach { Project subProject ->
         }
     }
 
+    subProject.tasks.withType(ProcessResources).configureEach {
+        duplicatesStrategy = DuplicatesStrategy.INCLUDE
+    }
+
     //Wire up our custom repositories.
     subProject.repositories.mavenLocal()
     subProject.repositories.maven { MavenArtifactRepository repository ->

common/src/main/java/net/neoforged/gradle/common/extensions/IdeManagementExtension.java

@@ -63,7 +63,7 @@ public IdeManagementExtension(Project project) {
      * @return whether this is an IntelliJ-based invocation
      */
     public boolean isIdeaImport() {
-        return Boolean.getBoolean("idea.active");
+        return Boolean.getBoolean("idea.sync.active");
     }
 
     /**

common/src/main/java/net/neoforged/gradle/common/extensions/subsystems/SubsystemsExtension.java

@@ -89,13 +89,11 @@ private void configureParchmentDefaults() {
                                     return DEFAULT_PARCHMENT_GROUP
                                             + ":" + DEFAULT_PARCHMENT_ARTIFACT_PREFIX + minecraftVersion
                                             + ":" + mappingVersion
-                                            // We need the checked variant for now since it resolves
-                                            // parameters conflicting with local variables by prefixing everything with "p"
-                                            + ":checked"
                                             + "@zip";
                                 })
                 )
         );
+        parchment.getConflictPrefix().convention("p_");
         parchment.getMinecraftVersion().convention(
                 getStringProperty("parchment.minecraftVersion")
         );

dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/extensions/subsystems/Parchment.groovy

@@ -22,6 +22,13 @@ interface Parchment extends ConfigurableDSLElement<Parchment> {
     @DSLProperty
     Property<String> getParchmentArtifact();
 
+    /**
+     * The prefix added to parameters in parchment when a conflict arises.
+     */
+    @Input
+    @DSLProperty
+    Property<String> getConflictPrefix();
+
     /**
      * Minecraft version of parchment to use. This property is
      * ignored if {@link #getParchmentArtifact()} is set explicitly.

dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/util/Constants.groovy

@@ -27,7 +27,7 @@ class Constants {
     public static final String DEFAULT_PARCHMENT_GROUP = "org.parchmentmc.data"
     public static final String DEFAULT_PARCHMENT_ARTIFACT_PREFIX = "parchment-"
     public static final String DEFAULT_PARCHMENT_MAVEN_URL = "https://maven.parchmentmc.org/"
-    public static final String JST_TOOL_ARTIFACT = "net.neoforged.jst:jst-cli-bundle:1.0.39"
+    public static final String JST_TOOL_ARTIFACT = "net.neoforged.jst:jst-cli-bundle:1.0.43"
     public static final String DEVLOGIN_TOOL_ARTIFACT = "net.covers1624:DevLogin:0.1.0.4"
     public static final String DEVLOGIN_MAIN_CLASS = "net.covers1624.devlogin.DevLogin"
 

gradle.properties

@@ -37,4 +37,4 @@ spock_version=2.1
 spock_groovy_version=3.0
 mockito_version=4.11.0
 jimfs_version=1.2
-trainingwheels_version=1.0.48
+trainingwheels_version=1.0.49

neoform/src/main/java/net/neoforged/gradle/neoform/runtime/extensions/NeoFormRuntimeExtension.java

@@ -436,7 +436,7 @@ protected void bakeDefinition(NeoFormRuntimeDefinition definition) {
         remapTask.configure(task -> configureMcpRuntimeTaskWithDefaults(spec, neoFormDirectory, symbolicDataSources, task));
 
         TaskProvider<? extends WithOutput> recompileInput = maybeApplyParchment(
-                spec,
+                definition,
                 remapTask,
                 symbolicDataSources,
                 neoFormDirectory,
@@ -492,21 +492,22 @@ protected void bakeDefinition(NeoFormRuntimeDefinition definition) {
         });
     }
 
-    private static TaskProvider<? extends WithOutput> maybeApplyParchment(NeoFormRuntimeSpecification spec,
+    private static TaskProvider<? extends WithOutput> maybeApplyParchment(NeoFormRuntimeDefinition runtimeDefinition,
                                                              TaskProvider<? extends WithOutput> recompileInput,
                                                              Map<String, String> symbolicDataSources,
                                                              File neoFormDirectory,
                                                              Provider<RegularFile> listLibrariesOutput) {
-        Project project = spec.getProject();
+        Project project = runtimeDefinition.getSpecification().getProject();
         Parchment parchment = project.getExtensions().getByType(Subsystems.class).getParchment();
         Tools tools = project.getExtensions().getByType(Subsystems.class).getTools();
         if (!parchment.getEnabled().get()) {
             return recompileInput;
         }
 
-        TaskProvider<? extends Runtime> applyParchmentTask = project.getTasks().register(CommonRuntimeUtils.buildTaskName(spec, "applyParchment"), DefaultExecute.class, task -> {
+        TaskProvider<? extends Runtime> applyParchmentTask = project.getTasks().register(CommonRuntimeUtils.buildTaskName(runtimeDefinition, "applyParchment"), DefaultExecute.class, task -> {
             // Provide the mappings via artifact
             File mappingFile = ToolUtilities.resolveTool(project, parchment.getParchmentArtifact().get());
+            String conflictPrefix = parchment.getConflictPrefix().get();
             File toolExecutable = ToolUtilities.resolveTool(project, tools.getJST().get());
 
             task.getArguments().putFile("mappings", project.provider(() -> mappingFile));
@@ -521,13 +522,23 @@ private static TaskProvider<? extends WithOutput> maybeApplyParchment(NeoFormRun
             task.getProgramArguments().add("{mappings}");
             task.getProgramArguments().add("--in-format=archive");
             task.getProgramArguments().add("--out-format=archive");
+            task.getProgramArguments().add("--parchment-conflict-prefix=%s".formatted(conflictPrefix));
             task.getProgramArguments().add("{input}");
             task.getProgramArguments().add("{output}");
 
+            final StringBuilder builder = new StringBuilder();
+            runtimeDefinition.getAllDependencies().forEach(f -> {
+                if (!builder.isEmpty()) {
+                    builder.append(File.pathSeparator);
+                }
+                builder.append(f.getAbsolutePath());
+            });
+            task.getProgramArguments().add("--classpath=" + builder);
+
             task.dependsOn(listLibrariesOutput);
             task.dependsOn(recompileInput);
 
-            configureCommonRuntimeTaskParameters(task, symbolicDataSources, "applyParchment", spec, neoFormDirectory);
+            configureCommonRuntimeTaskParameters(task, symbolicDataSources, "applyParchment", runtimeDefinition.getSpecification(), neoFormDirectory);
         });
 
         return applyParchmentTask;

platform/build.gradle

@@ -1,4 +1,5 @@
 plugins {
+    id 'groovy'
     id 'java-gradle-plugin'
 }