abort si parent vide

backup-recv

@@ -37,12 +37,15 @@ elif [ "$1" = "incsend" ]; then
   SNAP=`available_local | sort | tail -n 1`
   echo "Trying to send last snap $SNAP"
   PARENT=`available_common | sort | tail -n 1`
-  echo "Parent $PARENT"
-  read -p "[press enter to continue]"
   if [ "$PARENT" = "$SNAP" ]; then
     echo "Parent and Snap coincide ! Already sent ! Aborting"
     exit 1
+  elif [ "$PARENT" = "" ]; then
+    echo "No common parent. Please send a full backup"
+    exit 2
   fi
+  echo "Parent $PARENT"
+  read -p "[press enter to continue]"
   btrfs_send -p $FS_DIR/$BACK_DIR/$PARENT $FS_DIR/$BACK_DIR/$SNAP | $REMOTE receive $SNAP $PARENT
 elif [ "$1" = "receive" ]; then
   btrfs receive $FS_DIR/$BACK_DIR