#!/usr/bin/ruby
  
  require "optparse"
  
  unless ENV["USER"] == "root"
    exec "sudo", $0, *ARGV
  end
  
  all       = false
  force     = false
  opt       = false
  services  = false
  receipts  = false
  gitconfig = false
  
  OptionParser.new do |o|
    o.banner = "Remove most traces of Boxen from your machine."
  
    o.on("--all",       "Remove everything possible.")                         { all       = true }
    o.on("--force",     "Actually do it.")                                     { force     = true }
    o.on("--help",      "Show this help.")                                     { abort o.to_s    }
    o.on("--opt",       "Remove /opt/boxen.")                                  { opt       = true }
    o.on("--services",  "Remove and unload services.")                         { services  = true }
    o.on("--receipts",  "Remove package receipts used by Puppet.")             { receipts  = true }
    o.on("--gitconfig", "Remove Boxen-provided git credential helper config.") { gitconfig = true }
  
    o.parse!
  
    abort o.to_s unless all || opt || services || receipts || gitconfig
  end
  
  unless force
    warn "** I won't actually do anything unless you pass --force."
  end
  
  if all || services
    boxen_services = []
    boxen_services << Dir["/Library/Launch*/dev.*.plist"]
  
    boxen_services.flatten.each do |plist|
      warn "-> Removing #{plist}."
  
      if force
        system "launchctl", "unload", "-w", plist
        system "rm", "-f", plist
      end
    end
  
    system "rm", "-f", "/etc/resolver/dev"
  end
  
  if all || opt
    warn "-> Removing /opt/boxen."
    system "rm", "-rf", "/opt/boxen" if force
  end
  
  if all || receipts
    warn "-> Removing /var/db/.puppet_*."
    # can't use a bare system call here, because we need globbing.
    system 'sh -c "rm -rf /var/db/.puppet_*"' if force
  end
  
  if all || gitconfig
    warn "-> Removing git credential helper config."
    system "/usr/bin/git", "config", "--global", "--unset", "credential.helper"
  end