Add Spotless Gradle plugin configuration

Author: wborn

build.gradle

@@ -13,6 +13,15 @@ scmVersion {
     }
 }
 
+buildscript {
+    repositories {
+        maven { url 'https://plugins.gradle.org/m2' }
+    }
+    dependencies {
+        classpath 'com.diffplug.spotless:spotless-plugin-gradle:7.0.3'
+    }
+}
+
 allprojects {
     // Apply common project setup
     apply from: "${project.rootDir}/project.gradle"

project.gradle

@@ -389,4 +389,31 @@ plugins.withType(JavaPlugin).whenPluginAdded {
     }
 }
 
+plugins.apply('com.diffplug.spotless')
+
+spotless {
+    java {
+        target '**/*.java'
+
+        googleJavaFormat()
+        licenseHeaderFile rootProject.file('tools/spotless/openremote-license-header.txt')
+        importOrder('java', 'javax', 'com', 'org')
+        removeUnusedImports()
+        formatAnnotations()
+        trimTrailingWhitespace()
+        endWithNewline()
+    }
+
+    typescript {
+        target 'src/**/*.ts'
+        targetExclude(
+                'src/model.ts',
+                'src/restclient.ts'
+        )
+
+        eslint().configFile(rootProject.file('ui/.eslintrc.json')).tsconfigFile(rootProject.file('ui/tsconfig.json'))
+        licenseHeaderFile rootProject.file('tools/spotless/openremote-license-header.txt'), '(import|const|declare|export|var) '
+    }
+}
+
 // POM generator

tools/spotless/openremote-license-header.txt

@@ -0,0 +1,18 @@
+/*
+ * Copyright $YEAR, OpenRemote Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */

ui/app/custom/build.gradle

@@ -1,12 +1,10 @@
 buildDir = "dist"
 
-tasks.register('clean') {
-    dependsOn npmClean
-}
-
 tasks.register('installDist', Copy) {
     dependsOn npmBuild
     mustRunAfter(resolveTask(":manager:installDist"))
     from project.buildDir
     into "${project(':deployment').buildDir}/image/manager/app/${projectDir.name}"
 }
+
+clean.dependsOn(npmClean)