find-orphans

#!/usr/bin/env ruby
ROOT = File.dirname __dir__
PAGES = Dir["#{ROOT}/docs/**/*.md", "#{ROOT}/docs/**/*.yml"]

linked = Dir[
  "#{ROOT}/docs/index.md",
  "#{ROOT}/docs/*/commands/_*.yml",
  "#{ROOT}/docs/*/configuration/_*.yml",
  "#{ROOT}/docs/server/messages/*.yml",
].to_a
PAGES.each do |file|
	contents = File.read(file)

	# Markdown links
	contents.scan(/\[[^\]]+\]\(\/([^\)]+?)\/?(?:\#[^\)]+|\/)?\)/).each do |link|
		linked << "#{ROOT}/docs/#{link[0]}.md"
		linked << "#{ROOT}/docs/#{link[0]}.yml"
		linked << "#{ROOT}/docs/#{link[0]}/index.md"
	end

	# Markdown includes
	contents.scan(/\{!\s*(\S+)\s*!\}/).each do |fragment|
		linked << "#{ROOT}/docs/#{fragment[0]}"
	end

	# Jinja includes
	contents.scan(/\{%\s*include\s*"(\S+)"\s*%}/).each do |fragment|
		linked << "#{ROOT}/docs/#{fragment[0]}"
	end
end

orphaned = 0
PAGES.each do |file|
	next if linked.include? file
	puts "Orphaned: #{file}"
	orphaned += 1
end
puts "#{orphaned} orphaned!"
exit orphaned