org_scala_tools_maven.ScalaCompileMojo Maven / Gradle / Ivy

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/*
 * Copyright 2007 scala-tools.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 */
 package org_scala_tools_maven;

import java.io.File;
import java.util.List;

import org.apache.maven.model.Dependency;

/**
 * Compiles a directory of Scala source. Corresponds roughly to the compile goal
 * of the maven-compiler-plugin
 *
 * @phase compile
 * @goal compile
 * @requiresDependencyResolution compile
 */
public class ScalaCompileMojo extends ScalaCompilerSupport {

    /**
     * The directory in which to place compilation output 
     * 
     * @parameter expression="${project.build.outputDirectory}"
     */
    protected File outputDir;

    /**
     * The directory which contains scala/java source files
     * 
     * @parameter expression="${project.build.sourceDirectory}/../scala"
     */
    protected File sourceDir;

    @SuppressWarnings("unchecked")
    protected List getSourceDirectories() throws Exception {
    	List sources = project.getCompileSourceRoots();
    	//Quick fix in case the user has not added the "add-source" goal.
    	String scalaSourceDir = sourceDir.getCanonicalPath();
		if(!sources.contains(scalaSourceDir)) {
    		sources.add(scalaSourceDir);
    	}
    	return sources;
    }
    
    @SuppressWarnings("unchecked")
    @Override
    protected List getClasspathElements() throws Exception {
        return project.getCompileClasspathElements();
    }

    @SuppressWarnings("unchecked")
    @Override
    protected List getDependencies() {
        return project.getCompileDependencies();
    }

    @Override
    protected File getOutputDir() throws Exception {
        return outputDir.getAbsoluteFile();
    }
}