Script to update gitea to a version on an alpine host

update-gitea.sh

#!/bin/sh

BINARY_LOCATION="/usr/bin/gitea"
ARCHIVE_FILENAME="gitea-$1-linux-amd64.xz"
FILENAME="gitea-$1-linux-amd64"
URL="https://dl.gitea.io/gitea/$1/gitea-$1-linux-amd64.xz"
URL_HASH="https://dl.gitea.io/gitea/$1/gitea-$1-linux-amd64.xz.sha256"
URL_SIGN="https://dl.gitea.io/gitea/$1/gitea-$1-linux-amd64.xz.asc"

rc-service gitea stop
curl -O -L "$URL"
curl -O -L "$URL_HASH"
curl -O -L "$URL_SIGN"
sha256sum -c "$ARCHIVE_FILENAME.sha256"
if [[ $? -ne 0 ]]
then
	echo "SHA256 doesn't match"
	exit 1
fi
gpg --verify "$ARCHIVE_FILENAME.asc" "$ARCHIVE_FILENAME"
if [[ $? -ne 0 ]]
then
	echo "GPG Signature fail"
	exit 1
fi

rm "$ARCHIVE_FILENAME.sha256"
rm "$ARCHIVE_FILENAME.asc"

xz -d $ARCHIVE_FILENAME

mv $FILENAME $BINARY_LOCATION
chmod +x $BINARY_LOCATION
setcap CAP_NET_BIND_SERVICE=+eip $BINARY_LOCATION

rc-service gitea start