ssm/ssm-gen

#!/usr/bin/env bash

err() { printf '%s\n' "$*" >&2; }

workdir="/run/user/$UID/ssm/services"

[[ -d "$workdir" ]] || {
	mkdir -p "$workdir" || exit 7
}

while (( $# )); do
	case "$1" in
		-o|--oneshot) flag_oneshot=1;;
		-e|--edit) flag_edit=1;;
		-s|--start) flag_start=1;;

		-n|--name) service_name=$2; shift;;
		-w|--workdir) workdir=$2; shift;;

		--) shift; break;;
		*) break;;
	esac
	shift
done

[[ "$1" ]] || {
	err "Need at least one argument!"
	exit 5
}

cmd=$1; shift

[[ "$service_name" ]] || service_name=$cmd
[[ "$cmd" == '/'* ]] || cmd=$(which "$cmd")

args=$@

{
	printf '#!/usr/bin/env ssm\n\n'

	(( flag_oneshot )) && printf 'service_oneshot=1\n'

	printf 'service_command="%s"\n' "$cmd"

	[[ "$args" ]] && printf 'service_args=( %s )\n' "${service_args[*]}"
} > "$workdir/$service_name"

(( flag_edit )) && {
	"$EDITOR" "$workdir/$service_name" || exit 3
}

(( flag_start )) && ssm "$workdir/$service_name" start