gist_cloner github_username

gist_cloner.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'fileutils'
require 'net/http'
require 'uri'
require "open-uri"
require 'nokogiri'
=begin rdoc
 Clone all the public gists of a user.
 Place each gist in a folder named for the gist_id
=end
def download_gists(username, page=1)
  puts "-- Downloading page #{page} of gists --"
  url = URI.parse("http://gist.github.com")
  res = Net::HTTP.start(url.host, url.port) do |http|
      response = http.get("/#{username}?page=#{page}")
      if response.code == '200'
        links = get_links(response.body)
        links.each do |link, gist_id|
          puts "git://gist.github.com/#{gist_id}.git"
          if File.directory?(gist_id)
            `cd #{gist_id} && git pull ; cd ..`
          else
            `git clone git://gist.github.com/#{gist_id}.git #{gist_id}`
          end
        end
        download_gists(username, page+1) unless links.empty?
      end
  end
end

def get_links(page, domain=/http:\/\/.*\.\w{2,}\//)
  doc = Nokogiri::HTML(page)
  doc.css('a').inject({}) do |links, a|
    u = a.attributes['href'].content if a.attributes['href']
    links[u] = $+ if u.match(/\/(\d+$)/)
    links
  end
end

if ARGV.empty?
  puts "Usage: gist_cloner.rb github_username"
else
  FileUtils.mkdir ARGV.last
  FileUtils.chdir ARGV.last
  download_gists ARGV.first
  puts '# done'
end