Rake tasks refactoring

_rake/build_toc.rake

@@ -3,8 +3,8 @@ task :build_toc do
   src_dir = CONFIG[:source_dir]
   toc_file = ENV['dest'] || "#{src_dir}/HelpTOC.json"
 
-  load "#{src_dir}/_lib/toc_generator.rb"
-  load "#{src_dir}/_lib/summary_checker.rb"
+  load "#{src_dir}/_rake/lib/toc_generator.rb"
+  load "#{src_dir}/_rake/lib/summary_checker.rb"
 
   kramdown_config = YAML::load_file("#{src_dir}/_config.yml")['kramdown']
   toc = Docs::TocGenerator.extract("#{src_dir}/_SUMMARY.md", kramdown_config)

_rake/lib/broken_links_checker.rb

@@ -1,5 +1,5 @@
 require 'rexml/xpath'
-require_relative './utils.rb'
+require_relative './lic/markdown'
 
 module Docs
   class SummaryChecker

_rake/lib/summary_checker.rb

@@ -1,5 +1,5 @@
 require 'rexml/xpath'
-require_relative './utils.rb'
+require_relative './util/markdown'
 
 module Docs
   class SummaryChecker
@@ -11,9 +11,10 @@ module Docs
 
       xml.elements.each("//a") do |link|
         href = link.attribute('href').to_s
+        is_external = href.start_with?('http://', 'https://', 'ftp://', '//')
         path = "#{dir}/#{href.gsub(/\.html$/, '.md')}"
 
-        if !File.file?(path)
+        if !is_external and !File.file?(path)
           is_ok = false unless is_ok
           missing_files.push href
           break

_rake/lib/toc_generator.rb

@@ -4,7 +4,7 @@ require 'uri'
 require 'kramdown'
 require 'rexml/document'
 require 'rexml/xpath'
-require_relative './utils.rb'
+require_relative './util/markdown'
 
 module Docs
   class TocGenerator