class SnapTelemetry < Formula
  desc "Snap is an opensource telemetry framework"
  homepage "http://snap-telemetry.io/"
  url "https://github.com/intelsdi-x/snap/archive/0.17.0.tar.gz"
  sha256 "d627eff8155b346ce542fdf3251b2713a0bae887fb6a8ef3ba169b13c4f9fc60"

  head "https://github.com/intelsdi-x/snap.git"

  bottle do
    cellar :any_skip_relocation
    rebuild 1
    sha256 "562b40c3b1496819e1485c355e1c006316ed75eaaeeb4b617f9e6d29736e2d5c" => :sierra
    sha256 "acaa74b60a4c417ccb79e489734c1889bf4311d80af93a198d72b22d3911eb52" => :el_capitan
    sha256 "9248facbc3a64388b48d18dbf9dc645823508fb50192554057cf56296338d6e8" => :yosemite
  end

  depends_on "go" => :build
  depends_on "glide" => :build

  def install
    ENV["GOPATH"] = buildpath
    ENV["CGO_ENABLED"] = "0"
    ENV["GLIDE_HOME"] = HOMEBREW_CACHE/"glide_home/#{name}"

    snapd = buildpath/"src/github.com/intelsdi-x/snap"
    snapd.install buildpath.children

    cd snapd do
      system "glide", "install"
      system "go", "build", "-o", "snapd", "-ldflags", "-w -X main.gitversion=#{version}"
      bin.install "snapd"
      prefix.install_metafiles
    end

    snapctl = buildpath/"src/github.com/intelsdi-x/snap/cmd/snapctl"
    cd snapctl do
      system "go", "build", "-o", "snapctl", "-ldflags", "-w -X main.gitversion=#{version}"
      bin.install "snapctl"
    end
  end

  test do
    assert_match version.to_s, shell_output("#{bin}/snapd --version")
    assert_match version.to_s, shell_output("#{bin}/snapctl --version")

    begin
      snapd_pid = fork do
        exec "#{bin}/snapd -t 0 -l 1 -o #{testpath}"
      end
      sleep 5
      assert_match("No plugins", shell_output("#{bin}/snapctl plugin list"))
      assert_match("No task", shell_output("#{bin}/snapctl task list"))
      assert_predicate testpath/"snapd.log", :exist?
    ensure
      Process.kill("TERM", snapd_pid)
    end
  end
end