vfkit.rb

class Vfkit < Formula
  desc "Command line hypervisor using Apple's Virtualization Framework"
  homepage "https://github.com/crc-org/vfkit"
  url "https://github.com/crc-org/vfkit.git",
      tag: "v0.5.1",
      revision: "441c13483b5d5a82f8053ab011f879559df9e7c1"
  license "Apache-2.0"
  head "https://github.com/crc-org/vfkit.git", branch: "main"

  depends_on "go" => :build

  def install
    ENV["CGO_ENABLED"] = "1"
    ENV["CGO_CFLAGS"] = "-mmacosx-version-min=11.0"
    ENV["GOOS"]="darwin"
    arch = Hardware::CPU.intel? ? "amd64" : Hardware::CPU.arch.to_s
    system "make", "out/vfkit-#{arch}"
    bin.install "out/vfkit-#{arch}" => "vfkit"
  end

  test do
    # test version
    version_output = shell_output("#{bin}/vfkit --version 2>&1").strip
    assert_match(/vfkit version: #{version}/, version_output)

    # start a VM with non-existing kernel
    lines =  shell_output("#{bin}/vfkit --kernel foo --initrd bar --kernel-cmdline baz 2>&1", 1).strip.split(/\r?\n|\r/)
    assert_match(/open foo: no such file or directory/, lines.last)
  end
end