Synch Traktor Libraries

#!/bin/bash
# Synchronize the MY-MUSIC folders on a local and a network mounted computer
# Run this script with the option "test" to do a dry-run instead of actual sync

# Define library paths
RemoteLibrary="/Volumes/canton/Google Drive/MY-MUSIC"
LocalLibrary="/Users/canton/Google Drive/MY-MUSIC"

# Check if 'test' argument is passed
if [[ "$1" == "test" ]]; then
  RSYNC_OPTIONS="--dry-run"
  echo -e "\n*** Running in --dry-run test mode. ***"
else
  RSYNC_OPTIONS=""
fi

# Exit if files are not found
if [[ ! -f "$LocalLibrary/TRAKTOR4/collection.nml" ]] || [[ ! -f "$RemoteLibrary/TRAKTOR4/collection.nml" ]]; then
  echo ""
  echo "One or both of the TRAKTOR4/collection.nml files cannot be found. Mount a volume?"
  echo "Local: $LocalLibrary"
  echo "Network: $RemoteLibrary"
  exit 1
fi

# Check modification times
LocalModTime=$(stat -f "%m" "$LocalLibrary/TRAKTOR4/collection.nml" 2>/dev/null)
RemoteModTime=$(stat -f "%m" "$RemoteLibrary/TRAKTOR4/collection.nml" 2>/dev/null)

# Compare modification times and set sync direction
if [[ $LocalModTime -gt $RemoteModTime ]]; then
  src="$LocalLibrary"
  dest="$RemoteLibrary"
  newerMessage="FROM THIS COMPUTER:    "
  olderMessage="TO THE REMOTE COMPUTER:"
else
  src="$RemoteLibrary"
  dest="$LocalLibrary"
  newerMessage="FROM THE REMOTE COMPUTER:"
  olderMessage="TO THIS COMPUTER:        "
fi

# Show modification times and prompt for confirmation
echo -e "\nHere are the modification times for the two libraries:"
echo "THIS COMPUTER: $(date -r $LocalModTime)"
echo "REMOTE:        $(date -r $RemoteModTime)"
echo ""
echo -e "So, we are going to synchronize\n$newerMessage $src\n$olderMessage $dest"
read -p "---> Type 'yes' to confirm: " confirm

if [[ $confirm == "yes" ]]; then
  echo "*** SYNCHRONIZING... ***"
  rsync -avzh --delete $RSYNC_OPTIONS "$src/" "$dest/"
  echo "*** SYNCHRONIZING COMPLETE! ***"
else
  echo "Synchronization canceled."
fi