Merge branch 'rs-issue-2211' into 'master'

Update redcarpet to 3.2.3

Closes #2211

See merge request !1756

Gemfile

@@ -94,7 +94,7 @@ gem 'html-pipeline-gitlab', '~> 0.1'
 gem "github-markup"
 
 # Required markup gems by github-markdown
-gem 'redcarpet', '~> 3.1.2'
+gem 'redcarpet', '~> 3.2.3'
 gem 'RedCloth'
 gem 'rdoc', '~>3.6'
 gem 'org-ruby', '= 0.9.12'

Gemfile.lock

@@ -457,7 +457,7 @@ GEM
       ffi (>= 0.5.0)
     rdoc (3.12.2)
       json (~> 1.4)
-    redcarpet (3.1.2)
+    redcarpet (3.2.3)
     redis (3.1.0)
     redis-actionpack (4.0.0)
       actionpack (~> 4)
@@ -755,7 +755,7 @@ DEPENDENCIES
   rb-fsevent
   rb-inotify
   rdoc (~> 3.6)
-  redcarpet (~> 3.1.2)
+  redcarpet (~> 3.2.3)
   redis-rails
   request_store
   rspec-rails (= 2.99)

app/helpers/gitlab_markdown_helper.rb

@@ -31,15 +31,17 @@ module GitlabMarkdownHelper
   def markdown(text, options={})
     unless @markdown && options == @options
       @options = options
-      gitlab_renderer = Redcarpet::Render::GitlabHTML.new(self,
-                                                          user_color_scheme_class,
-                                                          {
-                            # see https://github.com/vmg/redcarpet#darling-i-packed-you-a-couple-renderers-for-lunch-
+
+      # see https://github.com/vmg/redcarpet#darling-i-packed-you-a-couple-renderers-for-lunch
+      rend = Redcarpet::Render::GitlabHTML.new(self, user_color_scheme_class, {
         with_toc_data:   true,
-                            safe_links_only: true
+        safe_links_only: true,
+        # Handled further down the line by HTML::Pipeline::SanitizationFilter
+        escape_html:     false
       }.merge(options))
-      @markdown = Redcarpet::Markdown.new(gitlab_renderer,
+
       # see https://github.com/vmg/redcarpet#and-its-like-really-simple-to-use
+      @markdown = Redcarpet::Markdown.new(rend,
         no_intra_emphasis:   true,
         tables:              true,
         fenced_code_blocks:  true,
@@ -47,8 +49,10 @@ module GitlabMarkdownHelper
         strikethrough:       true,
         lax_spacing:         true,
         space_after_headers: true,
-                      superscript: true)
+        superscript:         true
+      )
     end
+
     @markdown.render(text).html_safe
   end
 

lib/gitlab/reference_extractor.rb

@@ -3,7 +3,7 @@ module Gitlab
   class ReferenceExtractor
     attr_accessor :users, :labels, :issues, :merge_requests, :snippets, :commits, :commit_ranges
 
-    include Markdown
+    include ::Gitlab::Markdown
 
     def initialize
       @users, @labels, @issues, @merge_requests, @snippets, @commits, @commit_ranges =