class Docker < Formula
  desc "Pack, ship and run any application as a lightweight container"
  homepage "https://www.docker.com/"
  url "https://github.com/docker/docker-ce.git",
      :tag      => "v19.03.4",
      :revision => "9013bf583a215dc1488d941f9b6f7f11e1ea899f"

  bottle do
    cellar :any_skip_relocation
    sha256 "f23dad9c1da05cabee6fe374aff8bf2f0a2fc977311d60866dc5616cbac5a61e" => :catalina
    sha256 "ef7735ec063e05ed9d42160a6d0e6be69228aa2b556bedf47d81842ef686d817" => :mojave
    sha256 "d7a899fa9a800416167d21499a03645548cdc409b564ba8bf1434c9a519ddd9c" => :high_sierra
  end

  depends_on "go" => :build
  depends_on "go-md2man" => :build

  def install
    ENV["GOPATH"] = buildpath
    dir = buildpath/"src/github.com/docker/cli"
    dir.install (buildpath/"components/cli").children
    cd dir do
      commit = Utils.popen_read("git rev-parse --short HEAD").chomp
      build_time = Utils.popen_read("date -u +'%Y-%m-%dT%H:%M:%SZ' 2> /dev/null").chomp
      ldflags = ["-X \"github.com/docker/cli/cli/version.BuildTime=#{build_time}\"",
                 "-X github.com/docker/cli/cli/version.GitCommit=#{commit}",
                 "-X github.com/docker/cli/cli/version.Version=#{version}",
                 "-X \"github.com/docker/cli/cli/version.PlatformName=Docker Engine - Community\""]
      system "go", "build", "-o", bin/"docker", "-ldflags", ldflags.join(" "),
             "github.com/docker/cli/cmd/docker"

      Pathname.glob("man/*.[1-8].md") do |md|
        section = md.to_s[/\.(\d+)\.md\Z/, 1]
        (man/"man#{section}").mkpath
        system "go-md2man", "-in=#{md}", "-out=#{man/"man#{section}"/md.stem}"
      end

      bash_completion.install "contrib/completion/bash/docker"
      fish_completion.install "contrib/completion/fish/docker.fish"
      zsh_completion.install "contrib/completion/zsh/_docker"
    end
  end

  test do
    assert_match "Docker version #{version}", shell_output("#{bin}/docker --version")
    assert_match "ERROR: Cannot connect to the Docker daemon", shell_output("#{bin}/docker info", 1)
  end
end