Script to unsubscribe from all issue notifications on GitHub

unsubscribe_from_github_issue_notifications.rb

#!/usr/bin/env ruby

# set env variables GITHUB_USER and GITHUB_PASS

require 'bundler/inline'
gemfile do
  source 'https://rubygems.org'
  gem 'ferrum'
end

def browser
  @browser ||= Ferrum::Browser.new(timeout: 30)
end

def left_notification_count
  browser.evaluate("document.querySelectorAll('.js-notification-bulk-action-check-item').length")
end

browser.goto('https://github.com/notifications')
input = browser.at_xpath("//input[@id='login_field']")
input.focus.type(ENV['GITHUB_USER'])
input = browser.at_xpath("//input[@id='password']")
input.focus.type(ENV['GITHUB_PASS'], :Enter)
browser.network.wait_for_idle
sleep 2

while left_notification_count > 0
  browser.at_css('.js-notifications-mark-all-prompt').click
  browser.network.wait_for_idle

  browser.at_css('button[title="Unsubscribe"]').click
  browser.network.wait_for_idle
  # I thought wait_for_idle should be enough but it seems it isn't
  sleep 5
  print '.'
end

browser.quit