Example of using staging directory for texture packing

MyPacker.java

import com.badlogic.gdx.tools.FileProcessor;
import com.badlogic.gdx.tools.texturepacker.TexturePacker;
import com.cyphercove.cavecat.Assets;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.filefilter.RegexFileFilter;
import org.apache.commons.io.filefilter.TrueFileFilter;

import java.io.File;
import java.util.Collection;

public class MyPacker {

    static final String SOURCE_DIR = "graphics work/Texture atlases";
    static final String STAGING_DIR = "graphics work/tmp";
    static final String TARGET_DIR = "android/assets";

    public static void main (String[] args) throws Exception {

        //Delete old pack
        File oldPackFile = new File(TARGET_DIR + "/" + Assets.MAIN_ATLAS + Assets.ATLAS_EXTENSION);
        if (oldPackFile.exists()){
            System.out.println("Deleting old pack file");
            oldPackFile.delete();
        }

        //Clear staging directory
        File stagingDirectory = new File(STAGING_DIR);
        if (stagingDirectory.exists()){
            System.out.println("Deleting old pack file");
            FileUtils.cleanDirectory(stagingDirectory);
        }

        //Preprocess by moving stuff to staging area.
        FileProcessor moveAllButGifsProcessor = new FileProcessor(){
            protected void processFile (Entry entry) throws Exception {
                FileUtils.copyFileToDirectory(entry.inputFile, entry.outputDir);
            }
        };
        moveAllButGifsProcessor.addInputSuffix(".json", ".png", "jpg", ".fnt");
        moveAllButGifsProcessor.process(SOURCE_DIR, STAGING_DIR);
        GifProcessor gifProcessor = new GifProcessor(0.015f);
        gifProcessor.process(SOURCE_DIR, STAGING_DIR);

        FileProcessor stripSuffixesProcessor = new FileProcessor(){
            protected void processFile (Entry entry) throws Exception {
                String fileName = entry.inputFile.getName();
                if (fileName.contains("-export")){
                    File newFile = new File(entry.inputFile.getParentFile(), fileName.replace("-export", ""));
                    entry.inputFile.renameTo(newFile);
                }
            }
        };
        stripSuffixesProcessor.process(STAGING_DIR, "");

        //Pack them
        TexturePacker.Settings settings = new TexturePacker.Settings();
        settings.atlasExtension = Assets.ATLAS_EXTENSION;
        TexturePacker.process(
                settings,
                STAGING_DIR,
                TARGET_DIR,
                Assets.MAIN_ATLAS);

        //Copy over any fonts
        Collection<File> fontFiles = FileUtils.listFiles(
                new File(STAGING_DIR),
                new RegexFileFilter(".*\\.fnt"),
                TrueFileFilter.INSTANCE
        );
        File destDir = new File(TARGET_DIR);
        for (File file : fontFiles){
            System.out.println("Copying font file: " + file.getName());
            FileUtils.copyFileToDirectory(file, destDir);
        }
    }


}