DO NOT REPLY [Bug 13027] New: - Execute target in multiple build files

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=13027

Execute target in multiple build files

           Summary: Execute target in multiple build files
           Product: Ant
           Version: unspecified
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Enhancement
          Priority: Other
         Component: Core tasks
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


When working with a modular application, it is preferred to have an independent 
ant script for each module, which are typically arranged in various 
subdirectories. In order to build those modules with ant today, it is necessary 
to create a lot of repetitive code in the "master" build script, calling the 
build for each module manually. To tackle this, we created our own optional 
replacement for the "ant" task which we called "antdelegate". It allows you to 
add a fileset containing build files, and the specified target will be called 
in those build files. The code follows.

Btw. it would be a good idea to add protected accessors to private members in 
order to make it easier to extend existing tasks.


package com.decode.ant;

import org.apache.tools.ant.taskdefs.Ant;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.FileSet;

import java.util.*;
import java.io.File;
import java.io.IOException;

public class AntDelegate extends Ant{

    private String thetarget="";
    private List filesets = new LinkedList();

    public void execute() throws BuildException {
        Iterator it = filesets.iterator();
        while (it.hasNext()){
            log("Fileset 1", Project.MSG_VERBOSE);
            execFileset((FileSet)(it.next()));
        }
    }

    private void execFileset(FileSet fileSet) throws BuildException {
        DirectoryScanner ds = fileSet.getDirectoryScanner(project);
        File fromDir = fileSet.getDir(project);

        String[] buildFiles = ds.getIncludedFiles();

        for(int j=0;j<buildFiles.length;j++){
            String filename = null;
            try {
                filename = fromDir.getCanonicalPath()+ File.separator+ 
buildFiles[j];
            } catch (IOException e) {
                throw new BuildException(e);
            }
            setAntfile(filename);
            log("Executing target [" + thetarget + "] in " + filename, 
Project.MSG_VERBOSE);
            try {
                super.execute();
            } catch (BuildException bex) {
                throw new BuildException("Problem attempting to build 
target "+thetarget+" in "+filename, bex);
            }
        }

    }

    public void addFileSet(FileSet fs){
        filesets.add(fs);
    }

    public void setTarget(String thetarget) {
        super.setTarget(thetarget);
        this.thetarget = thetarget;
    }
}

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