Redirect to a run property.

Update documentation.
Error out when the user adds dev login to a none client run.

README.md

@@ -383,6 +383,20 @@ neogradle.subsystems.devLogin.addRepositories=<true/false>
 By default, the repositories are added, but if you want to disable this, you can set the property to false.
 By doing so you are responsible for adding a maven repository that provides the dev login CLI artifact.
 
+### Per run configuration
+If you want to configure the dev login tool per run, you can do so by setting the following properties in your run configuration:
+```groovy
+runs {
+    someRun {
+        shouldUseDevLogin false
+    }
+}
+```
+This will disable the dev login tool for this run. By default, the dev login tool is enabled for all client runs.
+
+> [!WARNING]
+> If you enable the dev login tool for a none client run, you will get an error message.
+
 ## Centralized Cache
 NeoGradle has a centralized cache that can be used to store the decompiled Minecraft sources, the recompiled Minecraft sources, and other task outputs of complex tasks.
 The cache is enabled by default, and can be disabled by setting the following property in your gradle.properties:

common/src/main/java/net/neoforged/gradle/common/CommonProjectPlugin.java

@@ -384,7 +384,7 @@ private void applyAfterEvaluate(final Project project) {
                     final Tools tools = project.getExtensions().getByType(Subsystems.class).getTools();
                     if (devLogin.getEnabled().get()) {
                         //Dev login is only supported on the client side
-                        if (runImpl.getIsClient().get()) {
+                        if (runImpl.getIsClient().get() && runImpl.getShouldUseDevLogin().get()) {
                             final String mainClass = runImpl.getMainClass().get();
 
                             //We add the dev login tool to the runtime only configuration, of the first source set, this should suffice
@@ -398,6 +398,8 @@ private void applyAfterEvaluate(final Project project) {
 
                             //Set the main class to the dev login tool
                             run.getMainClass().set("net.covers1624.devlogin.DevLogin");
+                        } else if (!runImpl.getIsClient().get() && runImpl.getShouldUseDevLogin().get()) {
+                            throw new GradleException("Dev login is only supported on runs which are marked as clients! The run: " + runImpl.getName() + " is not a client run.");
                         }
                     }
                 }

common/src/main/java/net/neoforged/gradle/common/runs/run/RunImpl.java

@@ -60,6 +60,8 @@ public RunImpl(final Project project, final String name) {
         getConfigureFromDependencies().convention(getConfigureAutomatically());
 
         getWorkingDirectory().convention(project.getLayout().getProjectDirectory().dir("runs").dir(getName()));
+
+        getShouldUseDevLogin().convention(getIsClient());
     }
 
     @Override

dsl/common/src/main/groovy/net/neoforged/gradle/dsl/common/runs/run/Run.groovy

@@ -1,5 +1,6 @@
 package net.neoforged.gradle.dsl.common.runs.run
 
+import groovy.cli.Option
 import groovy.transform.CompileStatic
 import net.minecraftforge.gdi.BaseDSLElement
 import net.minecraftforge.gdi.NamedDSLElement
@@ -156,6 +157,16 @@ interface Run extends BaseDSLElement<Run>, NamedDSLElement {
     @Optional
     abstract Property<Boolean> getIsGameTest();
 
+    /**
+     * Indicates if this run should use the dev login.
+     *
+     * @return {@code true} if this run uses dev login; otherwise, {@code false}.
+     */
+    @Input
+    @DSLProperty
+    @Optional
+    abstract Property<Boolean> getShouldUseDevLogin();
+
     /**
      * Defines the source sets that are used as a mod.
      * <p>