Import music from USB drive

src/freedombone-app-koel

@@ -194,7 +194,22 @@ function koel_import_from_directory {
 }
 
 function koel_import_from_usb {
-    echo -n ''
+    clear
+    detect_usb_drive
+
+    if [ ! -b $USB_DRIVE ]; then
+        dialog --title $"Import music from USB drive" --msgbox $'No USB drive found' 6 50
+        return
+    fi
+
+    backup_mount_drive ${USB_DRIVE} ${MY_USERNAME}
+    if [ ! -d $USB_MOUNT/Music ]; then
+        dialog --title $"Import music from USB drive" --msgbox $'No Music directory found on USB drive' 6 50
+        backup_unmount_drive ${USB_DRIVE}
+    fi
+    cp -r $USB_MOUNT/Music/* /music
+    backup_unmount_drive ${USB_DRIVE}
+    dialog --title $"Import music from USB drive" --msgbox $'Import complete. You may now remove the USB drive' 6 50
 }
 
 function configure_interactive_koel {