Extend the ssh configuration check by calling the echo command if the first check fails.

Signed-off-by: Florian Wallner <florian.wallner@exxcellent.de>
Signed-off-by: nachoparker <nacho@ownyourbits.com>

Author: Florian Wallner

bin/ncp/BACKUPS/nc-rsync-auto.sh

@@ -28,10 +28,12 @@ configure()
     return 1;
   }
 
+  # Check if the ssh access is properly configured. For this purpose the command : or echo is called remotely.
+  # If one of the commands works, the test is successful.
   [[ "$DESTINATION" =~ : ]] && {
     local NET="$( sed 's|:.*||' <<<"$DESTINATION" )"
     local SSH=( ssh -o "BatchMode=yes" -p "$PORTNUMBER" "$NET" )
-    ${SSH[@]} : || { echo "SSH non-interactive not properly configured"; return 1; }
+    ${SSH[@]} echo || { echo "SSH non-interactive not properly configured"; return 1; }
   }
 
   echo "0  5  */${SYNCDAYS}  *  *  root  /usr/bin/rsync -ax -e \"ssh -p $PORTNUMBER\" --delete \"$DATADIR\" \"$DESTINATION\"" > /etc/cron.d/ncp-rsync-auto

changelog.md

@@ -1,5 +1,7 @@
 
-[v1.20.1](https://github.com/nextcloud/nextcloudpi/commit/5fb675b) (2019-12-19) Revert "build: dont use empty values by default"
+[v1.20.2](https://github.com/nextcloud/nextcloudpi/commit/97cb2ff) (2019-11-13) Extend the ssh configuration check by calling the echo command if the first check fails.
+
+[v1.20.1](https://github.com/nextcloud/nextcloudpi/commit/6d0bc6b) (2019-12-19) Revert "build: dont use empty values by default"
 
 [v1.20.0 ](https://github.com/nextcloud/nextcloudpi/commit/f75c415) (2019-12-19) upgrade to NC17.0.2