#!/bin/sh
# Installs spool on this Linux computer as a service that starts with it:
# the print queue, the printers on this network and the slicing, with no
# screen and no one signed in. Run it again to update.
#
#   curl -fsSL https://spool.spencerhubert.info/install.sh | sudo sh
set -eu
site=https://spool.spencerhubert.info

if [ "$(uname -s)" != Linux ]; then
	echo "This installs spool on Linux. On a Mac or Windows, download the app from $site" >&2
	exit 1
fi
if [ "$(id -u)" != 0 ]; then
	echo "Run it with sudo: curl -fsSL $site/install.sh | sudo sh" >&2
	exit 1
fi
if ! command -v systemctl >/dev/null 2>&1; then
	echo "spool's service needs systemd, which this computer does not have." >&2
	exit 1
fi
case "$(uname -m)" in
x86_64 | amd64) arch=amd64 ;;
aarch64 | arm64) arch=arm64 ;;
*)
	echo "There is no spool for $(uname -m) yet." >&2
	exit 1
	;;
esac

tmp=$(mktemp -d)
trap 'rm -rf "$tmp"' EXIT
echo "Downloading spool for Linux ($arch)..."
curl -fsSL -o "$tmp/spool" "$site/updates/spool-linux-$arch"
chmod 0755 "$tmp/spool"
"$tmp/spool" service install