Check and install rsync if missing

seqs/backup.sh

@@ -1,10 +1,12 @@
 #!/bin/bash
 
 toolName=backup
+toolBin=rsync
 
 # Get script working directory
 # (when called from a different directory)
 WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
+APTOPT=
 CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
@@ -15,7 +17,12 @@ step_config() {
     CONFIG=1
   else
     echoerr " [E] Check output for errors"
+    # End if no configuration file exists
+    [ $DRY -eq 0 ] && return -1
   fi
+
+  [ $QUIET -ne 0 ] && APTOPT="-y"
+  return 0
 }
 
 step_1_info() { 
@@ -145,15 +152,31 @@ step_3() {
     echoerr " [E] Backup target (${buTarget}) is not writable"
     exit 1
   fi
-  
+
+  checkInstalled 
   exep "mv -f ${buTarget}/${buLog}0.log /tmp/${buLog}1.log 2>/dev/null"
-  exep "rsync -avxHAX --delete --info=stats2 ${buExcludes[*]} ${tmpSource} ${tmpTarget} > /tmp/${buLog}0.log"
+  exep "$toolBin -avxHAX --delete --info=stats2 ${buExcludes[*]} ${tmpSource} ${tmpTarget} > /tmp/${buLog}0.log"
 
   exe mv -f /tmp/${buLog}*.log ${buTarget}
   exe sync
   exep "mount -o ro,remount '${buTarget}' >>/dev/null 2>&1"
 }
 
-VERSION_SEQREV=10
+step_100_info() { echo "Install $toolBin"; }
+step_100_alias() { ALIAS="install"; }
+step_100() {
+  exe apt update
+  exe apt install $toolBin $APTOPT
+}
+
+checkInstalled() {
+  command -v $toolBin >>/dev/null
+  if [ $? -ne 0 ] ; then
+    step install
+  fi
+  toolBin="$(command -v $toolBin)"
+}
+
+VERSION_SEQREV=12
 . /usr/local/bin/sequencer.sh