Adding spotless to the gradle file

.github/workflows/main.yml

@@ -36,3 +36,18 @@ jobs:
     # Runs a single command using the runners shell
     - name: Compile and run tests on robot code
       run: ./gradlew build
+
+  spotless:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: 17
+      - run: ./gradlew spotlessCheck

build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "java"
     id "edu.wpi.first.GradleRIO" version "2024.1.1"
+    id 'com.diffplug.spotless' version '6.20.0'
 }
 
 java {
@@ -84,7 +85,11 @@ wpi.sim.addDriverstation()
 // in order to make them all available at runtime. Also adding the manifest so WPILib
 // knows where to look for our Robot Class.
 jar {
-    from { configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) } }
+    from {
+        configurations.runtimeClasspath.collect {
+            it.isDirectory() ? it : zipTree(it)
+        }
+    }
     from sourceSets.main.allSource
     manifest edu.wpi.first.gradlerio.GradleRIOPlugin.javaManifest(ROBOT_MAIN_CLASS)
     duplicatesStrategy = DuplicatesStrategy.INCLUDE
@@ -99,3 +104,46 @@ wpi.java.configureTestTasks(test)
 tasks.withType(JavaCompile) {
     options.compilerArgs.add '-XDstringConcat=inline'
 }
+
+spotless {
+    java {
+        target fileTree('.') {
+            include '**/*.java'
+            exclude '**/build/**', '**/build-*/**'
+        }
+        toggleOffOn()
+        googleJavaFormat()
+        removeUnusedImports()
+        trimTrailingWhitespace()
+        endWithNewline()
+    }
+    groovyGradle {
+        target fileTree('.') {
+            include '**/*.gradle'
+            exclude '**/build/**', '**/build-*/**'
+        }
+        greclipse()
+        indentWithSpaces(4)     
+        trimTrailingWhitespace()
+        endWithNewline()
+    }
+    format 'xml', {
+        target fileTree('.') {
+            include '**/*.xml'
+            exclude '**/build/**', '**/build-*/**'
+        }
+        eclipseWtp('xml')
+        trimTrailingWhitespace()
+        indentWithSpaces(2)
+        endWithNewline()
+    }
+    format 'misc', {
+        target fileTree('.') {
+            include '**/*.md', '**/.gitignore'
+            exclude '**/build/**', '**/build-*/**'
+        }
+        trimTrailingWhitespace()
+        indentWithSpaces(2)
+        endWithNewline()
+    }
+}