require 'formula'

class Polipo < Formula
  url 'http://freehaven.net/~chrisd/polipo/polipo-1.0.4.1.tar.gz'
  homepage 'http://www.pps.jussieu.fr/~jch/software/polipo/'
  head 'git://git.wifi.pps.jussieu.fr/polipo'
  md5 'bfc5c85289519658280e093a270d6703'

  def install
    cache_root = (var + "cache/polipo")
    cache_root.mkpath
    args = %W[PREFIX=#{prefix}
              LOCAL_ROOT=#{share}/polipo/www
              DISK_CACHE_ROOT=#{cache_root}
              MANDIR=#{man}
              INFODIR=#{info}
              PLATFORM_DEFINES=-DHAVE_IPv6]

    system "make", "all", *args
    system "make", "install", *args

    plist_path.write startup_plist
    plist_path.chmod 0644
  end

  def startup_plist
    return <<-EOPLIST
<?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>Label</key>
    <string>#{plist_name}</string>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <true/>
    <key>UserName</key>
    <string>#{`whoami`.chomp}</string>
    <key>ProgramArguments</key>
    <array>
      <string>#{bin}/polipo</string>
    </array>
  </dict>
</plist>
    EOPLIST
  end

  def caveats; <<-EOS.undent
    If this is your first install, automatically load on login with:
        mkdir -p ~/Library/LaunchAgents
        cp #{plist_path} ~/Library/LaunchAgents/
        launchctl load -w ~/Library/LaunchAgents/#{plist_path.basename}

    If this is an upgrade and you already have the #{plist_path.basename} loaded:
        launchctl unload -w ~/Library/LaunchAgents/#{plist_path.basename}
        cp #{plist_path} ~/Library/LaunchAgents/
        launchctl load -w ~/Library/LaunchAgents/#{plist_path.basename}
    EOS
  end
end