1 /* 2 * Copyright 2007 scala-tools.org 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, 11 * software distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions 14 * and limitations under the License. 15 */ 16 package org.scala_tools.maven; 17 18 19 /** 20 * Display the Scala Compiler help 21 * 22 * @goal help 23 */ 24 public class ScalaHelpMojo extends ScalaMojoSupport { 25 /** 26 * @parameter expression="${maven.scala.help.versionOnly}" default-value="false" 27 */ 28 private boolean versionOnly; 29 30 @Override 31 public void doExecute() throws Exception { 32 JavaCommand jcmd = null; 33 if (!versionOnly) { 34 jcmd = getScalaCommand(); 35 jcmd.addArgs("-help"); 36 jcmd.addArgs("-X"); 37 jcmd.addArgs("-Y"); 38 jcmd.run(displayCmd); 39 } 40 jcmd = getScalaCommand(); 41 jcmd.addArgs("-version"); 42 jcmd.run(displayCmd); 43 } 44 }