Rake task to locate and display a download ID from downloads.csv

Rakefile.rb

desc "Find a download ID"
task :find_download, :term do |t, args|
  raise "### You haven't created a download csv yet." unless File.exists?('downloads.csv')
  results = CSV.read("downloads.csv").delete_if {|row|
    row[0].strip =~ /^\d+$/ && row[1] + " " + row[4] =~ /.*#{args.term}.*/i ? false : true
  }
  results.sort! { |a,b|
    a[0].to_i <=> b[0].to_i
  }.map! { |res|
    res[0] + ": " + res[1] + " v" + res[3]
  }
  results_menu(results,"download")
  print ("Select download")
  while line = Readline.readline(": ", true)
    if !line || line =~ /^[a-z]/i
      puts "## Canceled"
      Process.exit 0
    end
    line = line.to_i
    if (line > 0 && line <= results.length)
      id = results[line.to_i - 1].match(/^\d+/)[0]
      download_tag = "{% download #{id} %}"
      %x{echo "#{download_tag}\\c"| pbcopy}
      puts %Q{Download tag in clipboard: "#{download_tag}"}
      Process.exit 0
    else
      puts "## Selection out of range"
      Process.exit 0
    end
  end
end

# creates a user menu from a hash or array
def results_menu(res, type = "file")
  counter = 1
  puts
  res.reverse!
  res.each do |match|
    match = match.class == String ? match : match[:path]
    if type == "file"
      display = match.sub(/^.*?\/([^\/]+)$/,"\\1")
      display.gsub!(/^[\d-]+/,'')
      display.gsub!(/\.(md|markdown)$/,'')
      display.gsub!(/-/,' ')
    elsif type == "download"
      display = match.sub(/^\d+:\s*/,'')
    else
      display = match.strip
    end
    printf("%2d ) %s\n", counter, display)
    counter += 1
  end
  puts
end