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      => "v0.20.1",
      :revision => "668c77b30f6ddcb5c80856dbec6f16b86f1b7023"
  head "https://github.com/hashicorp/consul-template.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "fe5380c1104a607b3970058432c75a798999bf63afa588db28428e84e933701e" => :mojave
    sha256 "c809f774afb8305d1a581b7a2869cf42ca311370cf233a3b13b0988ee9a0afe8" => :high_sierra
    sha256 "f181d44f0d605373b0bf1b6452fa0b6f5a7157355808ba3023ec5dc39c8944f1" => :sierra
  end

  depends_on "go" => :build

  def install
    ENV["GOPATH"] = buildpath
    ENV["XC_OS"] = "darwin"
    ENV["XC_ARCH"] = "amd64"
    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