Summary Generator for mdBook

build.rb

require 'pathname'
PATHS = Pathname.glob('./src/**/[^SUMMARY]*.md')

paths = PATHS.each_with_object({}) do |path, dirs|
  unless dirs[path.parent]
    dirs[path.parent] = []
  end
  dirs[path.parent] << path
end


File.open('./src/SUMMARY.md', 'w') do |f|
  f.puts("# Summary")
  paths.each_key do |k|
    f.puts ""
    dirname = k.to_s.gsub('./src', '').upcase
    f.puts("## #{dirname}")

    paths[k].each do |path|
      title = path.basename.to_s.gsub('_', ' ').gsub('.md', '').upcase
      f.puts "- [#{dirname} > #{title}](#{path.to_s.gsub('/src', '')})"
    end
  end
end
system 'mdbook build'
system 'more ./src/SUMMARY.md'