bundles/org.eclipse.build.tools/src/org/eclipse/releng/CvsDiffParser.java

/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation and others. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: IBM Corporation - initial API and implementation
 *******************************************************************************/
/*
 * Created on Dec 9, 2003
 */

package org.eclipse.releng;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Vector;

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;

/**
 * @author kmoir
 * 
 *         To change the template for this generated type comment go to Window -
 *         Preferences - Java - Code Generation - Code and Comments
 */
public class CvsDiffParser extends Task {

    public static void main(final String[] args) {

        final CvsDiffParser parser = new CvsDiffParser();
        parser.setMapDiffFile("d:/junk/cvsDiff.txt");
        parser.execute();
    }

    private String mapDiffFile;

    private Vector updatedMaps;

    /**
	 *  
	 */
    public CvsDiffParser() {
        super();
        // TODO Auto-generated constructor stub
    }

    @Override
    public void execute() throws BuildException {
        parseMapDiffFile();
        // sendNotice();
    }

    /**
     * @return Returns the mapDiffFile.
     */
    public String getMapDiffFile() {
        return mapDiffFile;
    }

    private void parseMapDiffFile() {
        updatedMaps = new Vector();

        // read the contents of the Diff file, and return contents as a String
        if (mapDiffFile.length() == 0) {
            updatedMaps = null;
        }

        BufferedReader in = null;
        String aLine;

        try {
            in = new BufferedReader(new FileReader(mapDiffFile));
        }
        catch (final FileNotFoundException e) {
            e.printStackTrace();
        }

        try {
            while ((aLine = in.readLine()) != null) {
                if (aLine.startsWith("RCS file")) {
                    final String mapPath = (aLine.substring(aLine.indexOf(":"), aLine.indexOf(","))).trim();

                    // verification for actual changes in tags base.plugin
                    while (((aLine = in.readLine()) != null) && !aLine.startsWith("===")) {
                        if (aLine.startsWith("< plugin") || aLine.startsWith("< fragment") || aLine.startsWith("< feature")
                                || aLine.startsWith("< base.plugin")) {
                            updatedMaps.add(new File(mapPath).getName());
                            break;
                        }
                    }

                }
            }
        }
        catch (final IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * @param mapDiffFile
     *            The mapDiffFile to set.
     */
    public void setMapDiffFile(final String mapDiffFile) {
        this.mapDiffFile = mapDiffFile;
    }

    // private void sendNotice(){
    //
    // if (updatedMaps==null || updatedMaps.size()==0){
    // throw new BuildException("Build cancelled - map files unchanged.");
    // }
    //
    // Mailer mailer = new Mailer();
    //
    // String subject="updated map file listing";
    // String message ="these map files have been updated for the build:\n\n";
    //
    // for (int i=0; i<updatedMaps.size();i++){
    // message=message.concat(updatedMaps.elementAt(i).toString()+"\n");
    // }
    //
    // try {
    // mailer.sendMessage(subject,message);
    // } catch (NoClassDefFoundError e){
    // System.out.println(message);
    // }
    // }
}