class HubIgnore

# File lib/hubignore.rb, line 44
def items
  items = []
  file = IO.read('.gitignore')
  file.scan(/^\#\#\s*HubIgnore Begins?:.*^\#\#\s*HubIgnore End.?$/mi).each do |block|
    first_line = block.lines.first
    items << first_line.split(':')[1].split(',').map(&:strip)
  end
  items
end

# File lib/hubignore.rb, line 54
def list
  puts 'These are the ignores in you .gitignore file:'
  puts items.flatten
end

# File lib/hubignore.rb, line 17
  def parse_argv(argv)
    help = <<EOS
  $ hubignore -v --version # show version
  $ hubignore -l --list # list git ignores in current .gitignore
  $ hubignore -u --update # update git ignores in current .gitignore to upstream
  $ hubignore -h --help # show this help message
EOS

    case argv
    when ['-l'], ['--list']
      list
      exit
    when ['-u'], ['--update']
      update
      exit
    when ['-v'], ['--version']
      puts "hubignore #{HubIgnore::VERSION}"
      exit
    when ['-h'], ['--help']
      puts help
      exit
    else
      puts help
      exit 1
    end
  end

# File lib/hubignore.rb, line 9
def run(argv)
  unless File.exist?('.gitignore')
    puts 'No .gitignore file in current directory. Exiting.'
    return
  end
  parse_argv(argv)
end

# File lib/hubignore.rb, line 59
def update
  content = IO.read('.gitignore')
  new_content = content.gsub(/^\#\#\s*HubIgnore Begins?:.*^\#\#\s*HubIgnore End.?$/mi) do |block|
    first_line = block.lines.first
    result = first_line
    first_line.split(':')[1].split(',').map(&:strip).each do |file|
      next if file.empty?
      puts "Downloading #{file}"
      result += "\#\# #{file} Begins:\n"
      uri = URI.parse(
        'https://raw.githubusercontent.com/github/'\
        "gitignore/master/#{file}.gitignore"
      )
      result += uri.read
      result += "\n"
    end
    result += block.lines.last
    result
  end

  IO.write('.gitignore', new_content)
end