TurtleFilesManager

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class TurtleFilesManager {

    public String[] neededPrograms = { "install.lua", "setLabel.lua" };
    public String mainPath = "C:\\Users\\noah1\\Twitch\\Minecraft\\Instances\\CC Simple\\saves\\Testing\\computercraft\\computer";

    public TurtleFilesManager() {
        // listDirs(mainPath);
        updatePrograms(mainPath);
        // listDirs(mainPath);
    }

    public void updatePrograms(String path) {
        File sourceFolder = new File(path + "\\src");
        File[] ids = new File(path).listFiles();
        int copies = 0, failedCopies = 0, deletions = 0, failedDeletions = 0;
        if (ids != null) {
            for (File id : ids) {
                if (!id.getName().equals("src")) {
                    File[] programs = id.listFiles();
                    String existingPrograms = "";
                    if (programs != null)
                        for (File ep : programs)
                            existingPrograms += ep.getName();

                    for (String neededProgram : neededPrograms) {
                        System.out.println("Updating " + id.getName() + "\\" + neededProgram + ":");
                        File newProgram = new File(id.getAbsolutePath() + "\\" + neededProgram);

                        if (existingPrograms.contains(neededProgram)) {
                            System.out.print(" > Found old -> Deleting... ");
                            if (newProgram.delete()) {
                                deletions++;
                                System.out.println("Success!");
                            } else {
                                failedDeletions++;
                                System.out.println("Failed!");
                            }
                        } else {
                            System.out.println(" > No old found");
                        }

                        System.out.print(" > Copying... ");
                        File sourceProgram = new File(sourceFolder.getAbsolutePath() + "\\" + neededProgram);
                        String reason = copyFile(sourceProgram, newProgram);
                        if (newProgram.exists()) {
                            copies++;
                            System.out.println("Success!");
                        } else {
                            failedCopies++;
                            System.out.println("Failed!");
                            System.out.println(" > Reason: " + reason);
                        }
                        System.out.println();
                    }
                }
            }
        }
        System.out.println(
                ">>> Copied " + copies + " file" + (copies == 1 ? "" : "s") + " (" + failedCopies + " failed) <<<");
        System.out.println(">>> Deleted " + deletions + " file" + (deletions == 1 ? "" : "s") + " (" + failedDeletions
                + " failed) <<<\n");
    }

    public String copyFile(File source, File dest) {
        if (!source.exists())
            return "source file doesn't exist";

        try {
            InputStream is = new FileInputStream(source);
            OutputStream os = new FileOutputStream(dest);
            byte[] buffer = new byte[1024];
            int length;
            while ((length = is.read(buffer)) > 0) {
                os.write(buffer, 0, length);
            }
            is.close();
            os.close();
            return "successful";
        } catch (Exception e) {
            e.printStackTrace();
            return "failed";
        }
    }

    public void listDirs(String path) {
        File allFilesDir = new File(path);
        File[] folders = allFilesDir.listFiles();

        System.out.println("=== All Computer Files ===");
        for (File file : folders) {
            System.out.println("ID: " + file.getName());
            File[] programs = file.listFiles();
            if (programs != null)
                for (File p : programs) {
                    if (p.getName().contains(".lua")) {
                        System.out.println(" -" + p.getName());
                    }
                }
            System.out.println();
        }
    }
}