Generate a list of URLs used by each jekyll site subdirectory of cwd

print_jekyll_subdir_urls.rb

#!/usr/bin/env ruby
# encoding: utf-8

# Generate a list of URLs used by each jekyll site subdirectory of cwd

template = <<-END
---
layout: none
---
/*
 * {{ site.title }}
 */
{% for page in site.pages %}{{ page.url }}
{% endfor %}{% for post in site.posts %}{{ post.url }}
{% endfor %}

END

urls = ''

Dir.glob('*/').reject { |dir| dir.match(/scss/) }.each do |dir|
  puts "Generating URLs for #{dir}"
  Dir.chdir dir
  File.write 'urls.txt', template
  `jekyll build`
  urls << File.read('_site/urls.txt')
  File.delete 'urls.txt'
  Dir.chdir '..'
end

File.write 'urls.txt', urls.gsub(/\/urls\.txt\n/, '')