Enable all types of github notifications for all your github hooks.

github-hook-config.rb

#!/usr/bin/env ruby

require 'json'
require 'pp'

user = ENV['USER']
pass = ENV['PASS']

notifications = %w(commit_comment create delete download follow fork fork_apply gist gollum
    issue_comment issues member public pull_request push team_add watch
    pull_request_review_comment status)

notifications_json = {"events" => notifications}.to_json

# get all repos
repos = JSON.parse(`curl --silent -u '#{user}:#{pass}' https://api.github.com/user/repos`)

repos.each do |repo|
  # get hooks
  JSON.parse(`curl --silent -u '#{  user}:#{pass}' https://api.github.com/repos/#{user}/#{repo["name"]}/hooks`).each do |hook|
    # enable notifications for hook
    pp JSON.parse(`curl --silent -u '#{user}:#{pass}' -XPOST https://api.github.com/repos/#{user}/#{repo["name"]}/hooks/#{hook["id"]} -d #{notifications_json.inspect}`)
  end
end