VeraCrypt: verschiebe Programmlogik aus Shell- in Python-Skript

veracrypt/verausbdrive.py

@@ -141,12 +141,24 @@ def __main():
     container_name = args[ARG_CONTAINER_NAME]
     container = os.path.join(usbdrive, container_name)
 
+    if not os.path.exists(usbdrive):
+        print(":: USB partition mount point \"{}\" doesn't exist. Ignoring request.".format(usbdrive))
+        return
+
     if args[ARG_VERA_DISMOUNT]:
-        vera_unmount(volume)
+        if os.path.exists(volume):
+            vera_unmount(volume)
+        else:
+            print(":: VeraCrypt mount point \"{}\" doesn't exist. Skipping unmount!".format(volume))
+
         if args[ARG_UNMOUNT_USB_DRIVE]:
             unmount_usbdrive(usbdrive)
         return
 
+    if os.path.exists(volume):
+        print(":: VeraCrypt mount point \"{}\" already exists! Assuming container is already mounted.".format(volume))
+        return
+
     vera_mount(volume, container)
 
 if __name__ == '__main__':

veracrypt/verausbdrive.sh.example

@@ -16,24 +16,9 @@ PYTHON_VERA_WRAPPER_BIN=~/ls1-misc/veracrypt/verausbdrive.py
 
 set -e
 
-USB_DRIVE_MOUNT_PATH="$MOUNT_PATH/$USB_DRIVE_PART_NAME"
-VERA_MOUNT_PATH="$MOUNT_PATH/$VERA_DRIVE_NAME"
-
-if [ ! -d "$USB_DRIVE_MOUNT_PATH" ]
-then
-	echo "USB drive partition not mounted; ignoring request."
-	exit 0
-fi
-
-if [ -d "$VERA_MOUNT_PATH" ]
-then
-	echo "Verascript drive name already in use; assuming the container is already mounted."
-	exit 0
-fi
-
 MY_BASEPATH="$(dirname "$PYTHON_VERA_WRAPPER_BIN")"
 MY_BINARY="$(basename "$PYTHON_VERA_WRAPPER_BIN")"
 
 pushd "$MY_BASEPATH" > /dev/null
-	pipenv run ./"$MY_BINARY" -m "$MOUNT_PATH" -v "$VERA_DRIVE_NAME" -n "$USB_DRIVE_PART_NAME" "$VERA_CONTAINER_PATH_REL"
+	pipenv run ./"$MY_BINARY" -m "$MOUNT_PATH" -v "$VERA_DRIVE_NAME" -n "$USB_DRIVE_PART_NAME" "$VERA_CONTAINER_PATH_REL" $@
 popd > /dev/null