updateTeku.sh

#!/bin/bash
set -euo pipefail
TEMP=`mktemp -d`

function cleanup() {
	rm -rf "${TEMP}"
}
trap cleanup EXIT

VERSION=${1?Must specify the Teku version to get}
URL="https://artifacts.consensys.net/public/teku/raw/names/teku.zip/versions/${VERSION}/teku-${VERSION}.zip"
echo "Downloading version ${VERSION} of Teku from ${URL}..."
curl -o "${TEMP}/teku-${VERSION}.zip" -L --fail "${URL}"

unzip -t "${TEMP}/teku-${VERSION}.zip"

echo "Calculating new hash..."
HASH=`shasum -a 256 ${TEMP}/teku-${VERSION}.zip | cut -d ' ' -f 1`

cat > teku.rb <<EOF
class Teku < Formula
  desc "Teku Ethereum 2 beacon chain client"
  homepage "https://github.com/consensys/teku"
  url "${URL}"
  # update with: ./updateTeku.sh <new-version>
  sha256 "${HASH}"
  head "https://artifacts.consensys.net/public/teku/raw/names/teku.zip/versions/develop/teku-develop.zip"

  depends_on "openjdk" => "21+"

  def install
    cp_r ".", "#{prefix}/dist"
    bin.install_symlink "#{prefix}/dist/bin/teku"

    (buildpath/"teku.yaml").write <<~EOS
      # Default Homebrew Teku config
      network: "mainnet"
      data-path: "#{etc}/teku.yaml"
    EOS
    etc.install "teku.yaml"
  end

  def post_install
    # Make sure the var/teku directory exists
    (var/"teku").mkpath
  end

  service do
    run [opt_bin/"teku", "--config-file=#{etc}/teku.yaml"]
    keep_alive true
    working_dir var/"teku"
  end

  test do
    system "#{bin}/teku" "--version"
  end
end
EOF

echo "New url: ${URL}"
echo "New hash: ${HASH}"
echo "Success.  Commit the changes to teku.rb to release."