Allow disabling Limelight proxy

FtcDashboard/src/main/java/com/acmerobotics/dashboard/DashboardSettings.java

@@ -0,0 +1,25 @@
+package com.acmerobotics.dashboard;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Build-time dashboard settings. Put the annotation on any one class in your project.
+ *
+ * <pre>
+ * &#64;DashboardSettings(limelightProxy = false)
+ * public class RobotConstants { }
+ * </pre>
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface DashboardSettings {
+    /**
+     * Whether the dashboard may proxy a Limelight on ports 5800-5807.
+     *
+     * @return true to allow the dashboard's Limelight proxy (the default)
+     */
+    boolean limelightProxy() default true;
+}

FtcDashboard/src/main/java/com/acmerobotics/dashboard/FtcDashboard.java

@@ -240,6 +240,7 @@
             new Mutex<>(new TreeMap<>());
 
     private final LimelightProxyManager limelightProxyManager = new LimelightProxyManager();
+    private static boolean limelightProxyEnabled = true;
 
     private static class OpModeAndStatus {
         public OpMode opMode;
@@ -361,7 +362,7 @@
             if (targetConfig.delete()) {
                 RobotLog.e(TAG, "Successfully deleted hardware config: " + name);
             } else {
                 RobotLog.ee(TAG, "Failed to delete hardware config: " + name, null);
             }
         } else {
             RobotLog.w(TAG, "Hardware config file does not exist: " + name);
@@ -968,6 +969,11 @@
                 try {
                     Class<?> configClass = Class.forName(className, false, classLoader);
 
+                    DashboardSettings settings = configClass.getAnnotation(DashboardSettings.class);
+                    if (settings != null && !settings.limelightProxy()) {
+                        limelightProxyEnabled = false;
+                    }
+
                     if (!configClass.isAnnotationPresent(Config.class)
                             || configClass.isAnnotationPresent(Disabled.class)) {
                         continue;
@@ -1302,7 +1308,9 @@
         logcatMonitorRunnable = new LogcatMonitorRunnable();
         logcatMonitorExecutor.submit(logcatMonitorRunnable);
 
-        limelightProxyManager.start();
+        if (limelightProxyEnabled) {
+            limelightProxyManager.start();
+        }
 
         core.enabled = true;