update-gitea.sh

#!/bin/bash

get_latest_release() {
	curl --silent "https://api.github.com/repos/$1/releases/latest" | # Get latest release from GitHub api
		grep '"tag_name":' |                                            # Get tag line
		sed -E 's/.*"v([^"]+)".*/\1/'                                   # Pluck JSON value
}

VERSION=$(get_latest_release "go-gitea/gitea")

if test -z "$VERSION"
then
	echo "Invalid version: $VERSION"
	exit 1
else
	echo "Newest version: $VERSION"
	read -p "Press <enter> to install."
fi

# Create a temporary directory for our adventures
WORKDIR="$(mktemp -d)"
trap "rm -r '$WORKDIR'" EXIT

set -e

cd "$WORKDIR"

FILENAME="gitea-$VERSION-linux-amd64"

wget "https://dl.gitea.io/gitea/$VERSION/$FILENAME"{,.asc}
gpg --verify "$FILENAME".asc

systemctl stop gitea

install -m0755 -o root "$FILENAME" /usr/local/bin/gitea

systemctl start gitea