Clone all forks in a GitHub repository's network.

clone_github_network.rb

#!/usr/bin/env ruby

require 'json'
require 'open-uri'
require 'fileutils'

token = ''
token_arg = '?access_token='+token

def clone_repo(repo)
	puts repo['full_name']
	owner, path = repo['full_name'].split('/')
	FileUtils.mkdir_p(owner)
	unless File.directory?(repo['full_name'])
		`git clone "#{repo['clone_url']}" "#{repo['full_name']}"`
	end
end
def clone_repo_branch(repo, branch)
	puts repo['full_name']
	owner, path = repo['full_name'].split('/')
	FileUtils.mkdir_p(owner)
	full_dir = repo["full_name"]+'.'+branch
	unless File.directory?(full_dir)
		`git clone "#{repo['clone_url']}" "#{full_dir}" -b #{branch}`
	end
end

github_api = "https://api.github.com/repos"
master = File.join(ARGV[0],ARGV[1])
FileUtils.mkdir_p(master)
Dir.chdir(master)
clone_repo(JSON.parse(open("#{github_api}/#{ARGV[0]}/#{ARGV[1]}").read))

page = 1
while page < 100 do
	puts "================= page #{page}"
	forks = JSON.parse(open("#{github_api}/#{ARGV[0]}/#{ARGV[1]}/forks#{token_arg}&per_page=100&page=#{page}").read)
	forks.each do |fork|
		puts fork["full_name"]
		full_name = fork["full_name"]
		begin
			branches = JSON.parse(open("#{github_api}/#{full_name}/branches#{token_arg}").read)
			branches.each do |branch|
				puts "#{full_name}, #{branch["name"]}"
				clone_repo_branch(fork, branch['name'])
			end
		rescue Exception => e
			puts e.message
			puts e.backtrace.inspect
		end
	end
	page += 1
end