Pull preserve into render helpers

app/helpers/markup_helper.rb

@@ -74,7 +74,7 @@ module MarkupHelper
 
     context[:project] ||= @project
     html = markdown_unsafe(text, context)
-    banzai_postprocess(html, context)
+    prepare_for_rendering(html, context)
   end
 
   def markdown_field(object, field)
@@ -82,13 +82,13 @@ module MarkupHelper
     return '' unless object.present?
 
     html = Banzai.render_field(object, field)
-    banzai_postprocess(html, object.banzai_render_context(field))
+    prepare_for_rendering(html, object.banzai_render_context(field))
   end
 
   def markup(file_name, text, context = {})
     context[:project] ||= @project
     html = context.delete(:rendered) || markup_unsafe(file_name, text, context)
-    banzai_postprocess(html, context)
+    prepare_for_rendering(html, context)
   end
 
   def render_wiki_content(wiki_page)
@@ -107,14 +107,14 @@ module MarkupHelper
         wiki_page.formatted_content.html_safe
       end
 
-    banzai_postprocess(html, context)
+    prepare_for_rendering(html, context)
   end
 
   def markup_unsafe(file_name, text, context = {})
     return '' unless text.present?
 
     if gitlab_markdown?(file_name)
-      Hamlit::RailsHelpers.preserve(markdown_unsafe(text, context))
+      markdown_unsafe(text, context)
     elsif asciidoc?(file_name)
       asciidoc_unsafe(text)
     elsif plain?(file_name)
@@ -225,8 +225,7 @@ module MarkupHelper
     Gitlab::OtherMarkup.render(file_name, text)
   end
 
-  # Calls Banzai.post_process with some common context options
-  def banzai_postprocess(html, context = {})
+  def prepare_for_rendering(html, context = {})
     return '' unless html.present?
 
     context.merge!(
@@ -239,7 +238,9 @@ module MarkupHelper
       requested_path: @path
     )
 
-    Banzai.post_process(html, context)
+    html = Banzai.post_process(html, context)
+
+    Hamlit::RailsHelpers.preserve(html)
   end
 
   extend self

app/views/help/index.html.haml

@@ -27,7 +27,6 @@
 .row
   .col-md-8
     .documentation-index
-      = preserve do
       = markdown(@help_index)
   .col-md-4
     .panel.panel-default

app/views/projects/_wiki.html.haml

@@ -2,7 +2,6 @@
   %div{ class: container_class }
     .wiki-holder.prepend-top-default.append-bottom-default
       .wiki
-        = preserve do
         = render_wiki_content(@wiki_home)
 - else
   - can_create_wiki = can?(current_user, :create_wiki, @project)

app/views/projects/issues/show.html.haml

@@ -58,7 +58,6 @@
     - if @issue.description.present?
       .description{ class: can?(current_user, :update_issue, @issue) ? 'js-task-list-container' : '' }
         .wiki
-          = preserve do
           = markdown_field(@issue, :description)
         %textarea.hidden.js-task-list-field
           = @issue.description

app/views/projects/merge_requests/show/_mr_box.html.haml

@@ -6,7 +6,6 @@
     - if @merge_request.description.present?
       .description{ class: can?(current_user, :update_merge_request, @merge_request) ? 'js-task-list-container' : '' }
         .wiki
-          = preserve do
           = markdown_field(@merge_request, :description)
         %textarea.hidden.js-task-list-field
           = @merge_request.description

app/views/projects/milestones/show.html.haml

@@ -43,7 +43,6 @@
       - if @milestone.description.present?
         .description
           .wiki
-            = preserve do
             = markdown_field(@milestone, :description)
 
   - if can?(current_user, :read_issue, @project) && @milestone.total_items_count(current_user).zero?

app/views/projects/notes/_note.html.haml

@@ -75,7 +75,6 @@
                   = icon('trash-o', class: 'danger-highlight')
       .note-body{ class: note_editable ? 'js-task-list-container' : '' }
         .note-text.md
-          = preserve do
           = note.redacted_note_html
         = edited_time_ago_with_tooltip(note, placement: 'bottom', html_class: 'note_edited_ago', include_author: true)
         - if note_editable

app/views/projects/tags/_tag.html.haml

@@ -24,7 +24,6 @@
     - if release && release.description.present?
       .description.prepend-top-default
         .wiki
-          = preserve do
           = markdown_field(release, :description)
 
   .row-fixed-content.controls

app/views/projects/tags/show.html.haml

@@ -38,7 +38,6 @@
     - if @release.description.present?
       .description
         .wiki
-          = preserve do
           = markdown_field(@release, :description)
     - else
       This tag has no release notes.

app/views/projects/wikis/show.html.haml

@@ -27,7 +27,6 @@
 
   .wiki-holder.prepend-top-default.append-bottom-default
     .wiki
-      = preserve do
       = render_wiki_content(@page)
 
 = render 'sidebar'

app/views/search/results/_issue.html.haml

@@ -8,7 +8,6 @@
     .pull-right ##{issue.iid}
   - if issue.description.present?
     .description.term
-      = preserve do
       = search_md_sanitize(issue, :description)
   %span.light
     #{issue.project.name_with_namespace}

app/views/search/results/_merge_request.html.haml

@@ -9,7 +9,6 @@
     .pull-right= merge_request.to_reference
   - if merge_request.description.present?
     .description.term
-      = preserve do
       = search_md_sanitize(merge_request, :description)
   %span.light
     #{merge_request.project.name_with_namespace}

app/views/search/results/_milestone.html.haml

@@ -5,5 +5,4 @@
 
   - if milestone.description.present?
     .description.term
-      = preserve do
       = search_md_sanitize(milestone, :description)

app/views/search/results/_note.html.haml

@@ -22,5 +22,4 @@
 
   .note-search-result
     .term
-      = preserve do
       = search_md_sanitize(note, :note)

app/views/shared/_service_settings.html.haml

@@ -4,7 +4,6 @@
   = render "projects/services/#{@service.to_param}/help", subject: subject
 - elsif @service.help.present?
   .well
-    = preserve do
     = markdown @service.help
 
 .service-settings

features/steps/project/commits/commits.rb

@@ -21,7 +21,7 @@ class Spinach::Features::ProjectCommits < Spinach::FeatureSteps
     expect(response_headers['Content-Type']).to have_content("application/atom+xml")
     expect(body).to have_selector("title", text: "#{@project.name}:master commits")
     expect(body).to have_selector("author email", text: commit.author_email)
-    expect(body).to have_selector("entry summary", text: commit.description[0..10].delete("\r"))
+    expect(body).to have_selector("entry summary", text: commit.description[0..10].delete("\r\n"))
   end
 
   step 'I click on tag link' do

spec/features/atom/users_spec.rb

@@ -53,7 +53,7 @@ describe "User Feed", feature: true  do
       end
 
       it 'has XHTML summaries in issue descriptions' do
-        expect(body).to match /we have a bug!<\/p>\n\n<hr ?\/>\n\n<p dir="auto">I guess/
+        expect(body).to match /<hr ?\/>/
       end
 
       it 'has XHTML summaries in notes' do

spec/helpers/events_helper_spec.rb

@@ -56,7 +56,7 @@ describe EventsHelper do
 
     it 'preserves code color scheme' do
       input = "```ruby\ndef test\n  'hello world'\nend\n```"
-      expected = '<pre class="code highlight js-syntax-highlight ruby">' \
+      expected = "\n<pre class=\"code highlight js-syntax-highlight ruby\">" \
         "<code><span class=\"line\"><span class=\"k\">def</span> <span class=\"nf\">test</span>...</span>\n" \
         "</code></pre>"
       expect(helper.event_note(input)).to eq(expected)