gitsucker.rb

#!/usr/bin/env ruby
require 'open-uri'
require 'nokogiri'
require 'json'

class Repo
  def initialize(name)
    @name = name
  end

  def forking_authors
    forking_author_names.
      collect {|name| Author.new(name) }.
      sort_by {|author| author.score }.
      reverse
  end

  private

  def author
    JSON.parse(open(repo_url).read)['repositories'].first['username']
  end

  def forking_author_names
    JSON.parse(open(forks_url).read).map {|fork| fork['owner']['login'] }
  end

  def forks_url
    "https://api.github.com/repos/#{author}/#{@name}/forks"
  end

  def repo_url
    "https://api.github.com/legacy/repos/search/#{@name}"
  end
end

class Author
  attr_reader :score

  def initialize(name)
    @name = name
    @score = original_repo_count * 3
    @score += language_count('Ruby') * 2
    @score += language_count('Javascript') * 2
    @score += forked_repo_count * 1
  end

  def stat_types
    %w(name public original forked ruby javascript score)
  end

  def stats
    [
      @name,
      public_repo_count,
      original_repo_count,
      forked_repo_count,
      language_count('Ruby'),
      language_count('Javascript'),
      score
    ]
  end

  private

  def forked_repo_count
    public_repo_count - original_repo_count
  end

  def github_profile
    @github_profile ||= Nokogiri::HTML(open("https://github.com/#{@name}"))
  end

  def language_count(language)
    github_profile.css('ul.repo-stats').select do |li|
      li.text.include? language
    end.count
  end

  def public_repo_count
    github_profile.css('.public').count
  end

  def original_repo_count
    github_profile.css('.source').count
  end
end

ARGV.each do |query|
  puts 'Fetching data...'

  begin
    puts '%-20s %-10s %-10s %-10s %-10s %-10s %-10s' % Author.stat_types
    puts '=' * 80

    Repo.new(query).forking_authors.each do |author|
      puts '%-20s %-10s %-10s %-10s %-10s %-10s %-10s' % author.stats
    end
  rescue
    puts 'No repo found'
  end
end