adjust_shebang

# File actionwebservice/setup.rb, line 1151
  def adjust_shebang(path)
    return if no_harm?
    tmpfile = File.basename(path) + '.tmp'
    begin
      File.open(path, 'rb') {|r|
        first = r.gets
        return unless File.basename(config('rubypath')) == 'ruby'
        return unless File.basename(first.sub(/\A\#!/, '').split[0]) == 'ruby'
        $stderr.puts "adjusting shebang: #{File.basename(path)}" if verbose?
        File.open(tmpfile, 'wb') {|w|
          w.print first.sub(/\A\#!\s*\S+/, '#! ' + config('rubypath'))
          w.write r.read
        }
        move_file tmpfile, File.basename(path)
      }
    ensure
      File.unlink tmpfile if File.exist?(tmpfile)
    end
  end