Prints forks of private repos

find_forks.rb

require "net/https"
require "json"

GITHUB_OAUTH_TOKEN = <YOUR OAUTH TOKEN HERE>
GITHUB_ORG_NAME = <YOUR ORG>

def api_request(http, path)
  request = Net::HTTP::Get.new(path)
  request["Authorization"] = "token #{GITHUB_OAUTH_TOKEN}"
  response = http.request(request)
  %r{<(?<next_page>.*)>; rel="next"} =~ response["Link"].to_s
  data = response.content_type =~ /json/ ? JSON.parse(response.body) : response.body
  [data, next_page]
end

http = Net::HTTP.start("api.github.com", 443, use_ssl: true)

next_page = "/orgs/#{GITHUB_ORG_NAME}/repos?type=private"
while next_page
  data, next_page = api_request(http, next_page)
  data.each do |repo|
    forks, _ = api_request(http, repo["forks_url"])
    forks.each do |fork|
      puts fork["full_name"] if fork["fork"]
    end
  end
end