duffle.rb

class Duffle < Formula
  desc "Duffle is the reference implementation of the CNAB specification"
  homepage "https://github.com/cnabio/duffle/releases"
  url "https://github.com/cnabio/duffle/releases/latest/download/duffle-darwin-amd64"
  sha256 "584839c76de74bf92dc387bb3eea8d1b937b0f862cdc8c71de1bfc0f376631dc"

  bottle :unneeded

  def install
    rm_f Dir["bin/*.cmd", "sbin/*.cmd", "libexec/*.cmd", "etc/hadoop/*.cmd"]
    libexec.install %w[bin sbin libexec share etc]
    bin.write_exec_script Dir["#{libexec}/bin/*"]
    sbin.write_exec_script Dir["#{libexec}/sbin/*"]
    libexec.write_exec_script Dir["#{libexec}/libexec/*"]
    chmod 0755, Dir["#{libexec}/*.sh"]
  end

  test do
    system bin/"duffle", "fs", "-ls"
  end
end

run

brew install https://gist.githubusercontent.com/benkelly/25ac3b25c8488748886d07fc87c3c12e/raw/2ffa2ef1d8a144d8a2a786e73629460c49a8b3fc/duffle.rb