Debian 12でDiscordが古いと文句を言ってくる問題を解決するシェルスクリプト

discord-update.sh

#!/bin/bash
# SPDX-License-Identifier: CC0-1.0
# SPDX-FileCopyrightText: 2024 Kisaragi Marine 
d="$(mktemp)"
if [ -t 1 ]; then
	tty=1
else
	tty=0
fi

if [ "$tty" = 0 ]; then
	escalation=/usr/bin/pkexec
else
	escalation=/usr/bin/sudo
fi

current_version="$(dpkg-query -f '${Version}' -W discord)"
latest_version="$(curl -sS --head 'https://discord.com/api/download/stable?platform=linux&format=deb' | grep -e '^location:' | cut -d: -f2-3 | cut -d/ -f6)"
if ! dpkg --compare-versions "$current_version" ge "$latest_version"; then
	# outdated! update it.
	curl -L 'https://discord.com/api/download/stable?platform=linux&format=deb' > "$d"
	mv "$d" "$d.deb"
	"$escalation" apt install "$d.deb"
	rm "$d.deb"
	cp /usr/share/applications/discord.desktop ~/.local/share/applications
	"$escalation" rm /usr/share/applications/discord.desktop || true
	sed -i -e "s%^Exec=/usr/share/discord/Discord$%Exec=/home/kisaragi/.local/bin/discord-update%" ~/.local/share/applications/discord.desktop
fi

/usr/share/discord/Discord