bin: check for profile presence in backup-restic

bin/backup-restic

@@ -23,7 +23,14 @@ fi
 
 PROFILE=$1
 shift
+
 PROFILE_ROOT=$CONFIG_ROOT/$PROFILE
+
+if [ ! -d "$PROFILE_ROOT" ] ; then
+    echo "Profile '$PROFILE' not found in $CONFIG_ROOT"
+    exit 2
+fi
+
 export RESTIC_PASSWORD_COMMAND="pass restic/$PROFILE/$HOSTNAME"
 
 CMDLINE="restic backup --one-file-system --exclude-caches $DRY"