Homebrew formula for imgcat (modified from closed PR on Homebrew/Homebrew)

imgcat.rb

class Imgcat < Formula
  desc "imgcat for iTerm"
  homepage "https://www.iterm2.com/images.html"
  version "2.9.20160313"
  url "https://raw.githubusercontent.com/gnachman/iTerm2/v#{version}/tests/imgcat"
  sha256 "036ee8aec2487a02b40d62d72918090ae022fc018589337dfd8403e08ffdd0c0"

  head do
    url "https://raw.githubusercontent.com/gnachman/iTerm2/HEAD/tests/imgcat"
  end

  def install
    bin.install "imgcat"
  end

  test do
    system bin/"imgcat", test_fixtures("test.png")
  end
end