Monitor multiple source directories for changes and sync to given destination

monitor_and_sync.sh

#!/bin/bash

# Ensure fswatch is installed
if ! command -v fswatch &>/dev/null; then
	echo "Error: fswatch is not installed. Please install it before running this script."
	exit 1
fi

if [ $# -ne 1 ]; then
	echo "Usage: $0 <2 letter country code>"
	exit 1
fi

dest_name="$1"
source_dirs=()
dest_dirs=()
source_base="$HOME/Containers/globaltech/packages"
dest_base="$HOME/Containers/Fool-$dest_name/public/wp-content"

# Set default set of directories to monitor
plugins=(
	'fool-wp-tracker'
	'fool-wp-segment'
)
themes=(
	'freesite-2020-theme'
	'au-theme'
)

# Validate package exists
is_valid_package() {
	local dir="$source_base/$1"
	if [ -d "$dir" ]; then
		echo "$dir"
	else
		echo "Error: '$dir' is not a valid package."
		exit 1
	fi
}

# Override default directories if options are passed
while getopts ":p:t:" opt; do
	case "$opt" in
	p)
		IFS=',' read -ra plugin_dirs <<<"$OPTARG"
		for dir in "${plugin_dirs[@]}"; do
			package=$(is_valid_package "$dir")
			plugins+=("$package")
		done
		;;
	t)
		IFS=',' read -ra theme_dirs <<<"$OPTARG"
		for dir in "${theme_dirs[@]}"; do
			package=$(is_valid_package "$dir")
			themes+=("$package")
		done
		;;
	\?)
		echo "Usage: $0 [-p plugin1,plugin2,plugin3] [-t theme1,theme2]"
		exit 1
		;;
	esac
done

shift $((OPTIND - 1))

# If only -p or -t was passed, empty the other array
if [ -n "${plugins[0]}" ] && [ -z "${themes[0]}" ]; then
	themes=()
elif [ -z "${plugins[0]}" ] && [ -n "${themes[0]}" ]; then
	plugins=()
fi

for plugin in "${plugins[@]}"; do
	source_dirs+=("$source_base/$plugin/")
	dest_dirs+=("$dest_base/plugins/$plugin/")
done

for theme in "${themes[@]}"; do
	source_dirs+=("$source_base/$theme/")
	dest_dirs+=("$dest_base/themes/$theme/")
done

exclude_patterns=('.git/' 'node_modules/' 'vendor/' 'logs/' '*.log' '.cache/' '*.cache' 'sql/' 'wordpress/' '~' '*.swp' '*.sw0' '4913' '.DS_Store')

for pattern in "${exclude_patterns[@]}"; do
	exclude_args+=(--exclude="$pattern")
done

graceful_termination() {
	# Add any cleanup tasks here if needed
	echo "Received termination signal. Stopping monitoring..."
	exit 0
}

trap graceful_termination SIGINT SIGTERM

sync_directories() {
	local path_to_print="${1:-Default message}"
  	echo "$path_to_print synchronized"
	rsync -avq --delete "${exclude_args[@]}" "$source_dir" "$dest_dir"
}

# Debounce implementation attempted but incomplete
for ((i = 0; i < ${#source_dirs[@]}; i++)); do
	source_dir="${source_dirs[$i]}"
	dest_dir="${dest_dirs[$i]}"
	# last_sync_time=0

	sync_directories "Initial sync for $source_dir"

	fswatch --recursive --event Updated --event Created --event Removed "${exclude_args[@]}" "$source_dir" | while read -r event_path; do
		# current_time=$(date +%s)

		# if ((current_time - last_sync_time >= 1)); then
		sync_directories "$event_path"
		# last_sync_time=$current_time
		# fi
	done &
done

while true; do
	sleep 60
done