class Gomplate < Formula
  desc "Command-line Golang template processor"
  homepage "https://gomplate.hairyhenderson.ca/"
  url "https://github.com/hairyhenderson/gomplate/archive/v3.2.0.tar.gz"
  sha256 "52663592a5fd1a67a8c48ebd434860e1930fe3b9cab2c740bef7629177f932ba"
  head "https://github.com/hairyhenderson/gomplate.git"

  bottle do
    cellar :any_skip_relocation
    sha256 "2ea33ca97932b9d1f6a18e5ed460056ed83d31ba9e189be2b97205df52355343" => :mojave
    sha256 "4a52b61754bc9458ec2504051996c7046d5f571bab9395ae11b5adc6eab3b285" => :high_sierra
    sha256 "a251d5860d01d850ffde0f7e86255553abfb1f7836a946803bd0b2c8d5d06edb" => :sierra
  end

  depends_on "go" => :build
  depends_on "upx" => :build

  def install
    ENV["GOPATH"] = buildpath
    (buildpath/"src/github.com/hairyhenderson/gomplate").install buildpath.children
    cd "src/github.com/hairyhenderson/gomplate" do
      system "make", "compress", "VERSION=#{version}"
      bin.install "bin/gomplate-slim" => "gomplate"
      prefix.install_metafiles
    end
  end

  test do
    output = shell_output("#{bin}/gomplate --version")
    assert_equal "gomplate version #{version}", output.chomp

    test_template = <<~EOS
      {{ range ("foo:bar:baz" | strings.SplitN ":" 2) }}{{.}}
      {{end}}
    EOS

    expected = <<~EOS
      foo
      bar:baz
    EOS

    assert_match expected, pipe_output("#{bin}/gomplate", test_template, 0)
  end
end