class Consul < Formula
  desc "Tool for service discovery, monitoring and configuration"
  homepage "https://www.consul.io"
  url "https://github.com/hashicorp/consul.git",
      :tag => "v1.0.2",
      :revision => "b55059fc3d0327c92c41431e57dfd2df3f956b03"

  head "https://github.com/hashicorp/consul.git",
       :shallow => false

  bottle do
    cellar :any_skip_relocation
    sha256 "23804c075d9eb365599d6450a4bb59bcfb03a703fae8c03cbb2c2196156474e2" => :high_sierra
    sha256 "056833510109f7fc3e358140af35f38daf0ee44f56c85bfe11e0eaa76939e9e4" => :sierra
    sha256 "e9c460ab90b7e523978af4bc14b059a24b8406116538ed60c10a616c4c18dee2" => :el_capitan
  end

  depends_on "go" => :build

  def install
    contents = Dir["{*,.git,.gitignore}"]
    gopath = buildpath/"gopath"
    (gopath/"src/github.com/hashicorp/consul").install contents

    ENV["GOPATH"] = gopath
    ENV.prepend_create_path "PATH", gopath/"bin"

    cd gopath/"src/github.com/hashicorp/consul" do
      system "make"
      bin.install "bin/consul"
      prefix.install_metafiles
      zsh_completion.install "contrib/zsh-completion/_consul"
    end
  end

  plist_options :manual => "consul agent -dev -advertise 127.0.0.1"

  def plist; <<~EOS
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
      <dict>
        <key>KeepAlive</key>
        <dict>
          <key>SuccessfulExit</key>
          <false/>
        </dict>
        <key>Label</key>
        <string>#{plist_name}</string>
        <key>ProgramArguments</key>
        <array>
          <string>#{opt_bin}/consul</string>
          <string>agent</string>
          <string>-dev</string>
          <string>-advertise</string>
          <string>127.0.0.1</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>WorkingDirectory</key>
        <string>#{var}</string>
        <key>StandardErrorPath</key>
        <string>#{var}/log/consul.log</string>
        <key>StandardOutPath</key>
        <string>#{var}/log/consul.log</string>
      </dict>
    </plist>
    EOS
  end

  test do
    fork do
      exec "#{bin}/consul", "agent", "-data-dir", "."
    end
    sleep 3
    system "#{bin}/consul", "leave"
  end
end