fix kernel encryption

src/install/kernel.rs

@@ -15,9 +15,16 @@ pub fn setup_mkinitcpio(conf: &DriveConfig) {
     );
 
     // Set kernel cmdline
-    // TODO : Encryption support
     std::fs::create_dir_all("/mnt/etc/kernel").unwrap();
-    std::fs::write("/mnt/etc/kernel/cmdline", format!("root={}", conf.root)).unwrap();
+
+    if conf.encryption.is_some() {
+        let block_uuid = find_uuid_by_dev(&conf.root).unwrap();
+        std::fs::write("/mnt/etc/kernel/cmdline", 
+        format!("rd.luks.options=timeout=30s rd.luks.name={block_uuid}=root root=/dev/mapper/root rw")
+    ).unwrap();
+    } else {
+        std::fs::write("/mnt/etc/kernel/cmdline", format!("root={}", conf.root)).unwrap();
+    }
 
     // TODO : more configs
     print_status("Writing /etc/mkinitcpio.conf");
@@ -29,3 +36,29 @@ pub fn setup_mkinitcpio(conf: &DriveConfig) {
 
     arch_chroot(&["mkinitcpio", "--allpresets"], None, true);
 }
+
+fn find_uuid_by_dev(dev: &str) -> Option<String> {
+    let dir_path = "/dev/disk/by-uuid";
+
+    if let Ok(entries) = std::fs::read_dir(dir_path) {
+        for entry in entries.flatten() {
+            let path = entry.path();
+
+            if let Ok(target) = std::fs::read_link(&path) {
+                let resolved_path = path.parent().unwrap().join(&target);
+
+                if resolved_path
+                    .to_string_lossy()
+                    .ends_with(dev.split("/").last().unwrap())
+                {
+                    // Match -> Return found Block Device UUID
+                    if let Some(filename) = path.file_name() {
+                        return Some(filename.to_string_lossy().to_string());
+                    }
+                }
+            }
+        }
+    }
+
+    None
+}

src/install/mod.rs

@@ -1,6 +1,3 @@
-// TODO : Setup ssh (config + authorized_keys)
-// TODO : Setup virtualization
-// TODO : Setup docker
 // TODO : Autojoin docker swarm
 // TODO : Autojoin teleport
 
@@ -101,8 +98,6 @@ pub fn install(conf: InstallConfig) {
             install_pkgs(&pkg::DESKTOP_PKG);
             print_status("Enable SDDM");
 
-            // TODO : Setup KDE Keyboard Layout
-
             std::os::unix::fs::symlink(
                 "/usr/lib/systemd/system/sddm.service",
                 "/mnt/etc/systemd/system/display-manager.service",