subversionVersion.java :  » J2EE » fleXive » com » flexive » tools » Java Open Source

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 *
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package com.flexive.tools;

import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.StringTokenizer;

/**
 * Retrieve the current checked out subversion version for flexive
 *
 * @author Markus Plesser (markus.plesser@flexive.com), UCS - unique computing solutions gmbh (http://www.ucs.at)
 */
public class subversionVersion {

    public static void main(String[] args) {
        System.out.println(getVersion());
    }

    public static String getVersion() {
        File f = new File(".svn/entries");
        if (f.exists()) {
            try {
                StringBuffer sbInput = new StringBuffer(1000);
                FileReader fr = new FileReader(f);
                while (fr.ready()) sbInput.append((char) fr.read());
                fr.close();

                StringTokenizer tok = new StringTokenizer(sbInput.toString(), "\n", false);
                String currLine = null;
                boolean isV4 = false;
                int line=0;
                while (tok.hasMoreTokens()) {
                    line++;
                    if( currLine == null ) {
                        currLine = tok.nextToken().trim();
                        isV4 = !currLine.startsWith("<?xml");
                    } else
                        currLine = tok.nextToken().trim();
                    if( !isV4 && currLine.startsWith("revision")) {
                        return currLine.substring(currLine.indexOf('"')+1, currLine.lastIndexOf('"'));
                    } else if (isV4 && line == 3) {
                        return currLine.trim();
                    }
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return "unknown";
    }

}