Try to use actionpack gem to generate guide when Rails is not vendored

Author: lifo

railties/guides/rails_guides.rb

@@ -1,17 +1,28 @@
 pwd = File.dirname(__FILE__)
 $: << pwd
-$: << File.join(pwd, "../../activesupport/lib")
-$: << File.join(pwd, "../../actionpack/lib")
 
-require "action_controller"
-require "action_view"
+begin
+  as_lib = File.join(pwd, "../../activesupport/lib")
+  ap_lib = File.join(pwd, "../../actionpack/lib")
+
+  $: << as_lib if File.directory?(as_lib)
+  $: << ap_lib if File.directory?(ap_lib)
+  
+  require "action_controller"
+  require "action_view"
+rescue LoadError
+  require 'rubygems'
+  gem "actionpack", '>= 2.3'
+
+  require "action_controller"
+  require "action_view"
+end
 
-# Require rubygems after loading Action View
-require 'rubygems'
 begin
-  gem 'RedCloth', '>= 4.1.1'# Need exactly 4.1.1
+  require 'rubygems'
+  gem 'RedCloth', '>= 4.1.1'
 rescue Gem::LoadError
-  $stderr.puts %(Missing the RedCloth 4.1.1 gem.\nPlease `gem install -v=4.1.1 RedCloth` to generate the guides.)
+  $stderr.puts %(Generating Guides requires RedCloth 4.1.1+)
   exit 1
 end
 
@@ -22,7 +33,6 @@ module RailsGuides
   autoload :Indexer, "rails_guides/indexer"
   autoload :Helpers, "rails_guides/helpers"
   autoload :TextileExtensions, "rails_guides/textile_extensions"
-  autoload :Levenshtein, "rails_guides/levenshtein"
 end
 
 RedCloth.send(:include, RailsGuides::TextileExtensions)

railties/guides/rails_guides/generator.rb

@@ -57,7 +57,6 @@ def generate_guide(guide)
 
           result = view.render(:layout => 'layout', :text => textile(body))
           f.write result
-          warn_about_broken_links(result)
         end
       end
     end
@@ -135,38 +134,5 @@ def with_workaround_for_notextile(body)
         code_blocks[$1.to_i]
       end
     end
-
-    def warn_about_broken_links(html)
-      anchors = extract_anchors(html)
-      check_fragment_identifiers(html, anchors)
-    end
-    
-    def extract_anchors(html)
-      # Textile generates headers with IDs computed from titles.
-      anchors = Set.new
-      html.scan(/<h\d\s+id="([^"]+)/).flatten.each do |anchor|
-        if anchors.member?(anchor)
-          puts "*** DUPLICATE HEADER ID: #{anchor}, please consider rewording"
-        else
-          anchors << anchor
-        end
-      end
-
-      # Also, footnotes are rendered as paragraphs this way.
-      anchors += Set.new(html.scan(/<p\s+class="footnote"\s+id="([^"]+)/).flatten)
-      return anchors
-    end
-    
-    def check_fragment_identifiers(html, anchors)
-      html.scan(/<a\s+href="#([^"]+)/).flatten.each do |fragment_identifier|
-        next if fragment_identifier == 'mainCol' # in layout, jumps to some DIV
-        unless anchors.member?(fragment_identifier)
-          guess = anchors.min { |a, b|
-            Levenshtein.distance(fragment_identifier, a) <=> Levenshtein.distance(fragment_identifier, b)
-          }
-          puts "*** BROKEN LINK: ##{fragment_identifier}, perhaps you meant ##{guess}."
-        end
-      end
-    end
   end
 end