initial cut of Gradle plugin

grails-gradle-plugin/build.gradle

@@ -0,0 +1,31 @@
+apply plugin: 'groovy'
+apply plugin: 'maven'
+
+group = 'org.grails'
+
+repositories {
+  maven { url "http://repo.spring.io/libs-release" }
+  mavenLocal()
+  mavenCentral()
+
+}
+
+dependencies {
+    compile gradleApi()
+    compile project(":grails-bootstrap"), {
+        exclude group:"org.fusesource.jansi", module:"jansi"
+        exclude group:"jline", module:"jline"
+        exclude group:"net.java.dev.jna", module:"jna"
+
+        // Ant
+        exclude group:"org.codehaus.groovy", module:"groovy-ant"
+        exclude group:"org.apache.ant", module:"ant"
+        exclude group:"org.apache.ant", module:"ant-launcher"
+        exclude group:"org.apache.ivy", module:"ivy"
+        exclude group:"org.apache.ant", module:"ant-trax"
+        exclude group:"org.apache.ant", module:"ant-junit"
+
+        exclude group:"org.codehaus.gant", module:"gant_groovy1.8"
+    }
+    compile "org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion"
+}

grails-gradle-plugin/src/main/groovy/org/grails/gradle/plugin/core/GrailsPlugin.groovy

@@ -0,0 +1,56 @@
+package org.grails.gradle.plugin.core
+
+import grails.util.Environment
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.plugins.GroovyPlugin
+import org.springframework.boot.gradle.SpringBootPlugin
+
+class GrailsPlugin extends GroovyPlugin {
+
+    void apply(Project project) {
+        super.apply(project)
+
+        project.getPlugins().apply(SpringBootPlugin)
+
+
+        def projectDir = project.projectDir
+
+        def grailsSourceDirs = []
+        def excludedDirs = ['views', 'migrations', 'assets', 'i18n']
+        new File("$projectDir/grails-app").eachDir { File subdir ->
+            def dirName = subdir.name
+            if(!subdir.hidden && !dirName.startsWith(".") && !excludedDirs.contains(dirName)) {
+                grailsSourceDirs << subdir.absolutePath
+            }
+        }
+
+        grailsSourceDirs << "$projectDir/src/main/groovy"
+
+        def environment = Environment.current
+
+        println "ENVIRONMENT IS $environment"
+
+
+        project.sourceSets {
+            main {
+                groovy {
+                    srcDirs = grailsSourceDirs
+                    filter {
+                        exclude "$projectDir/grails-app/conf/hibernate"
+                        exclude "$projectDir/grails-app/conf/spring"
+                    }
+                    resources {
+                        srcDirs = [
+                                "$projectDir/grails-app/conf/hibernate",
+                                "$projectDir/grails-app/conf/spring",
+                                "$projectDir/grails-app/views",
+                                "$projectDir/src/main/webapp"
+                        ]
+                    }
+                }
+            }
+        }
+    }
+
+}

grails-gradle-plugin/src/main/resources/META-INF/gradle-plugins/org.grails.core.properties

@@ -0,0 +1 @@
+implementation-class=org.grails.gradle.plugin.core.GrailsPlugin

settings.gradle

@@ -57,4 +57,7 @@ include 'grails-aether',
         'grails-test-suite-web',
 
         // Deprecated Compatibility Classes
-        'grails-compat'
+        'grails-compat',
+
+        // Gradle Plugin
+        'grails-gradle-plugin'