class ConsulTemplate < Formula
  desc "Generic template rendering and notifications with Consul"
  homepage "https://github.com/hashicorp/consul-template"
  url "https://github.com/hashicorp/consul-template.git",
      :tag      => "v0.19.5",
      :revision => "f8c8205caf458dfd0ecab69d029ab112803aa587"
  head "https://github.com/hashicorp/consul-template.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "921d8401cb88f770060bbe6f59eb5a0499764b8539b42682cddaaf8db526ecc2" => :mojave
    sha256 "859b8ac6cb1aaff1d1b7be4b41d0eef356d86634eb76a2601d3cce1626d03bb4" => :high_sierra
    sha256 "4bc3abb371cf2a3f6243800d7b9325a0479639d488a20911eff3ff11a68f2a15" => :sierra
    sha256 "dec98da73d913cf2a2d4364826427eb42dab3638d09ac198e7f9e449082aa8ad" => :el_capitan
  end

  depends_on "go" => :build

  def install
    ENV["GOPATH"] = buildpath
    arch = MacOS.prefer_64_bit? ? "amd64" : "386"
    ENV["XC_OS"] = "darwin"
    ENV["XC_ARCH"] = arch
    dir = buildpath/"src/github.com/hashicorp/consul-template"
    dir.install buildpath.children - [buildpath/".brew_home"]

    cd dir do
      project = "github.com/hashicorp/consul-template"
      commit = Utils.popen_read("git rev-parse --short HEAD").chomp
      ldflags = ["-X #{project}/version.Name=consul-template",
                 "-X #{project}/version.GitCommit=#{commit}"]
      system "go", "build", "-o", bin/"consul-template", "-ldflags",
             ldflags.join(" ")
      prefix.install_metafiles
    end
  end

  test do
    (testpath/"template").write <<~EOS
      {{"homebrew" | toTitle}}
    EOS
    system bin/"consul-template", "-once", "-template", "template:test-result"
    assert_equal "Homebrew", (testpath/"test-result").read.chomp
  end
end