gls_challenge_commit_checker.rb

require 'nokogiri'
require 'open-uri'

usernames = [
  'brianknight10',
  'annekagoss',
  'bethannezink',
  'DanFerrer',
  'antropova',
  'himedlooff',
  'sharnie',
  'CarpeDN',
  'aromayne',
  'tadasv',
  'rvangundy',
  'samueldowens'
]

usernames.each do |username|
  begin
    doc = Nokogiri::HTML(open("https://www.github.com/#{username}"))
    color = doc.css("#contributions-calendar [data-date=\"#{Date.today.prev_day}\"]").attr("fill")
    committed = color.to_s == "#eeeeee" ? "No commits" : "Committed"
    puts "#{username}: #{committed}"
  rescue
    puts "Invalid username: #{username}"
  end
end