script to update gitea

update_gitea.bash

#!/bin/bash

v=$(wget -qO- https://api.github.com/repos/go-gitea/gitea/releases/latest | jq --raw-output '.tag_name')

readonly VER="${v#v}"
readonly BIN="gitea-${VER}-linux-amd64"
readonly SIG="${BIN}.asc"
readonly URL="https://dl.gitea.io/gitea/${VER}/"

verify_signature() {
	local file=$1 sig=$2 out=
	if out=$(gpg --status-fd 1 --verify "$sig" "$file" 2>/dev/null) &&
		echo "$out" | grep -qs "^\[GNUPG:\] GOODSIG 5FC346329753F4B0 Teabot <teabot@gitea.io>" &&
		echo "$out" | grep -qs "^\[GNUPG:\] VALIDSIG "; then
		return 0
	else
		echo "$out" >&2
		return 1
	fi
}


[[ -f "${BIN}" ]] && {
	echo "${BIN} is already there"
	exit 1
}

wget -q --show-progress "${URL}${BIN}"
wget -q --show-progress "${URL}${SIG}"

verify_signature "${BIN}" "${SIG}" \
	&& echo "sig ok" \
	|| {
		echo "sig err"
		exit 1
	}

rm "${SIG}"

chown gitea:gitea "${BIN}"
chmod +x "${BIN}"
[[ -L gitea ]] \
	&& rm gitea
ln -s "${BIN}" gitea
service gitea restart