syncthing-inotify brew formula

class Syncthing < Formula
  desc "File watcher intended for use with Syncthing"
  homepage "https://github.com/syncthing/syncthing-inotify"
  url "https://github.com/syncthing/syncthing-inotify.git",
    :tag => "v0.6.4", :revision => "f7992458bc50099fcd0a8467855d0aa356159937"

  head "https://github.com/syncthing/syncthing-inotify.git"

  bottle do
    cellar :any
    sha256 "392d1b861c5eae39e44148842947dfbeb3640cb0d031e0a42fef3ec49d31252b" => :yosemite
    sha256 "28b78c3826f3a9a6c1b521ad91b2e7c91b3bc6417f7e175a2e83960ad2f78e1d" => :mavericks
    sha256 "a1c9ae1947ae60898b14820577ffafc4bbb5e92039d02ebf9e8d2aa9e5fffaea" => :mountain_lion
  end

  depends_on "go" => :build
  depends_on :hg => :build

  def install
    ENV["GOPATH"] = cached_download/".gopath"
    ENV.append_path "PATH", "#{ENV["GOPATH"]}/bin"

    # FIXTHIS: do this without mutating the cache!
    hack_dir = cached_download/".gopath/src/github.com/syncthing"
    rm_rf hack_dir
    mkdir_p hack_dir
    ln_s cached_download, "#{hack_dir}/syncthing"

    system "go", "get"
    system "go", "build"
    bin.install "syncthing-inotify"
  end

  def plist; <<-EOS.undent
    <?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>
        <true/>
        <key>Label</key>
        <string>#{plist_name}</string>
        <key>ProgramArguments</key>
        <array>
          <string>#{opt_bin}/syncthing-inotify</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
        <key>ProcessType</key>
        <string>Background</string>
        <key>StandardErrorPath</key>
        <string>#{var}/log/syncthing-inotify.log</string>
        <key>StandardOutPath</key>
        <string>#{var}/log/syncthing-inotify.log</string>
      </dict>
    </plist>
    EOS
  end

  test do
    system "syncthing-inotify", "-version"
  end
end