org.jvnet.maven.plugin.antrun.UnJarTask Maven / Gradle / Ivy

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package org.jvnet.maven.plugin.antrun;

import org.apache.tools.ant.taskdefs.Expand;
import org.apache.tools.ant.util.FileUtils;

import java.io.File;

/**
 * Extends the unjar task to be able to specify dynamic destination directory.
 *
 * For example:
 *
 * *
 *       
 *       
 *           
 *               
 *           
 *       
 *
 * produces:
 *
 *      [unjar] Expanding: /tmp/src/a.jar into /tmp/a_jar
 *      [unjar] Expanding: /tmp/src/b.jar into /tmp/b_jar
 *      [unjar] Expanding: /tmp/src/c.jar into /tmp/c_jar
 *      [unjar] Expanding: /tmp/src/d.jar into /tmp/d_jar
 *
 * 
 * 
 * @author [email protected]
 *
 */

public class UnJarTask extends Expand {

    @Override
    protected void expandFile(FileUtils fileUtils, File srcF, File dir) {
        String destDirName = dir.getAbsolutePath();
        if (destDirName.indexOf("@filebasename@") != -1) {
            String fileBaseName = getBaseName(srcF);
            destDirName = destDirName.replaceAll("@filebasename@", fileBaseName);
            File destDir = new File(destDirName);
            destDir.mkdirs();
            super.expandFile(fileUtils, srcF, destDir);
        } else {
            super.expandFile(fileUtils, srcF, dir);
        }
    }

    private String getBaseName(File file) {
        String srcFileName = file.getName();
        String fileBaseName = srcFileName.indexOf('.') != -1 ?
                srcFileName.substring(0, srcFileName.lastIndexOf('.')) : srcFileName;
        return fileBaseName;
    }
}