Added Library JLINE

src/main/java/org/cametendo/BlockSize.java

@@ -0,0 +1,39 @@
+package org.cametendo;
+import java.util.Scanner;
+
+public class BlockSize {
+    
+    public static String blockSizeString = "";
+    
+    static String blockSize(Scanner UserInput) {
+        System.out.println("Choose a block size (Default: 4M)");
+        System.out.println("512KB (1), 1M (2), 2M (3), 4M (4), 8M (5), 16M (6)");
+        String blockSizeInput = UserInput.nextLine();
+
+        switch (blockSizeInput) {
+            case "1":
+                blockSizeString = "512KB";
+                break;
+            case "2":
+                blockSizeString = "1M";
+                break;
+            case "3":
+                blockSizeString = "2M";
+                break;
+            case "4":
+                blockSizeString = "4M";
+                break;
+            case "5":
+                blockSizeString = "8M";
+                break;
+            case "6":
+                blockSizeString = "16M";
+                break;  
+            default:
+                blockSizeString = "4M";
+                break;
+        }
+        System.out.println("Using blocksize of: " + blockSizeString);
+        return blockSizeString;
+    }
+}

src/main/java/org/cametendo/Dd.java

@@ -0,0 +1,27 @@
+package org.cametendo;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+public class Dd {
+    public static void dd() {
+                try {
+            ProcessBuilder pb = new ProcessBuilder("sudo", "dd", "if=" + FilePathAdd.ImagePath, "of=" + StorageDeviceLister.fullPath, "bs=" + BlockSize.blockSizeString, "status=progress", "oflag=" + OflagHandler.oflagHandleString);
+            pb.redirectErrorStream(true);
+            Process process = pb.start();
+            
+            BufferedReader reader = new BufferedReader(
+                new InputStreamReader(process.getInputStream())
+            );
+            
+            int character;
+            while ((character = reader.read()) != -1) {
+                char c = (char) character;
+                System.out.print(c);
+                System.out.flush();
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/main/java/org/cametendo/FilePathAdd.java

@@ -0,0 +1,33 @@
+package org.cametendo;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Scanner;
+
+public class FilePathAdd {
+
+    public static String ImagePath = "";
+
+    protected static String filePath(Scanner UserInput) {
+        fileQuestion();
+        while (true) {
+            ImagePath = UserInput.nextLine();
+            if (ImagePath.isBlank()) {
+                System.out.println("Oops.. You didn't specify a file, did you missclick?");
+                continue;
+            }
+            Path path = Path.of(ImagePath);
+            try {
+                Files.readAttributes(path, "basic:size");
+                System.out.println("Using File: " + ImagePath);
+                return ImagePath;
+            } catch (IOException e) {
+                System.out.println("Failed to access file, invalid path or no access to file! Please try again.");
+            }
+        }
+    }
+
+    protected static void fileQuestion() {
+        System.out.println("Please enter the FULL Path of your ISO / Image. (No tab-complete)");
+    }
+}

src/main/java/org/cametendo/Flasher.java

@@ -0,0 +1,24 @@
+package org.cametendo;
+import java.util.Scanner;
+
+public class Flasher {
+    public static void flasher(Scanner UserInput) {
+        
+        String input = "";
+        
+        System.out.println("The programm wil use the following configuration, do you want to flash with this? (Y/n)");
+        System.out.println("    - To be flashed device: " + StorageDeviceLister.fullPath);
+        System.out.println("    - To be used path: " + FilePathAdd.ImagePath);
+        System.out.println("    - To bed used blocksize: " + BlockSize.blockSizeString);
+        System.out.println("    - To be used oflag: " + OflagHandler.oflagHandleString);
+        input = UserInput.nextLine();
+        if (YesNo.check(input)) {
+            System.out.println("Starting to flash...");
+        } else {
+            System.out.println("Canceling...");
+            System.exit(0);
+        }
+        Dd.dd();
+        System.out.println("Flash completed.");
+    }
+}

src/main/java/org/cametendo/Greeting.java

@@ -0,0 +1,7 @@
+package org.cametendo;
+public class Greeting {
+    public static void greeting() {
+        System.out.println("Welcome to cflash!");
+        System.out.println("Would you like to flash an image (Y/n)");
+    }
+}

src/main/java/org/cametendo/Main.java

@@ -0,0 +1,25 @@
+package org.cametendo;
+import java.util.Scanner;
+
+public class Main {
+    public static void main(String[] args) throws InterruptedException {
+        Scanner UserInput = new Scanner(System.in);
+        
+        Greeting.greeting();
+        String input = UserInput.nextLine();
+        
+        if (YesNo.check(input)) {
+            System.out.println("Please choose the to be flashed device (f. e. sda)");
+        } else {
+            System.out.println("Canceling...");
+            System.exit(0);
+        }
+        StorageDeviceLister.deviceCheck(UserInput);
+        FilePathAdd.filePath(UserInput);
+        BlockSize.blockSize(UserInput);
+        OflagHandler.handleOflag(UserInput);
+        Flasher.flasher(UserInput);
+
+        
+    }
+}

src/main/java/org/cametendo/OflagHandler.java

@@ -0,0 +1,33 @@
+package org.cametendo;
+import java.util.Scanner;
+
+public class OflagHandler {
+
+    public static String oflagHandleString = "";
+
+    static String handleOflag(Scanner UserInput) {
+        System.out.println("Okay, next up please define your oflag (Default: direct)");
+        System.out.println("Available flags: direct (1), dsync (2), sync (3), nocache (4)");
+        String oflagHandleInput = UserInput.nextLine();
+
+        switch (oflagHandleInput) {
+            case "1":
+                oflagHandleString = "direct";
+                break;
+            case "2":
+                oflagHandleString = "dsync";
+                break;
+            case "3":
+                oflagHandleString = "sync";
+                break;
+            case "4":
+                oflagHandleString = "nocache";
+                break; 
+            default:
+                oflagHandleString = "direct";
+                break;
+        }
+        System.out.println("Using oflag: " + oflagHandleString);
+        return oflagHandleString;
+    }
+}

src/main/java/org/cametendo/StorageDeviceLister.java

@@ -0,0 +1,57 @@
+package org.cametendo;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.nio.file.Path;
+import java.util.Scanner;
+
+public class StorageDeviceLister {
+
+    public static String device = "";
+    public static String fullPath = "";
+
+    protected static String deviceCheck(Scanner UserInput) {
+        // 1. lsblk wird genau EINMAL aufgerufen
+        deviceList();
+
+        // 2. Die Abfrage-Schleife
+        while (true) {
+            device = UserInput.nextLine();
+            if (device.isBlank()) {
+                System.out.println("Oops... Device name is empty. Did you missclick?");
+                continue;
+            }
+            Path path = Path.of("/dev/" + device);
+
+            try {
+                // Versuche, den echten Pfad zu finden
+                fullPath = path.toRealPath().toString();
+                
+                // Wenn wir hier ankommen, war der Pfad gültig
+                System.out.println("Using device: " + fullPath);
+                return fullPath; 
+
+            } catch (IOException e) {
+                // Fehler-Output, danach springt die Schleife wieder nach oben
+                System.out.println("Failed to access device! Invalid path or no access. Please try again.");
+            }
+        }
+    }
+
+    private static void deviceList() {
+        try {
+            ProcessBuilder pb = new ProcessBuilder("lsblk");
+            Process process = pb.start();
+            BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+            String line;
+            while ((line = reader.readLine()) != null) {
+                System.out.println(line);
+            }
+            process.waitFor();
+            System.out.println("Please enter the name of your device (without /dev/):");
+
+        } catch (IOException | InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/main/java/org/cametendo/YesNo.java

@@ -0,0 +1,17 @@
+package org.cametendo;
+public class YesNo {
+    public static boolean check(String input) {
+        switch (input) {
+            case "Y":
+                return true;
+            case "y":
+                return true;
+            case "":
+                return true;
+            case "n":
+                return false;
+            default:
+                return false; 
+        }
+    }
+}