Fix relative links in other markup formats

- Apply the RelativeLinkFilter filter to other formats, e.g.,
  reStructuredText so links from the Files view or the Project view work
- Remove the AsciidocPipeline pipeline

Fixes #3533.

1 files changed, 24 insertions, 0 deletions

diff --git a/lib/gitlab/other_markup.rb b/lib/gitlab/other_markup.rb
new file mode 100644
index 00000000000..746ec283330
--- /dev/null
+++ b/lib/gitlab/other_markup.rb
@@ -0,0 +1,24 @@
+module Gitlab
+  # Parser/renderer for markups without other special support code.
+  module OtherMarkup
+
+    # Public: Converts the provided markup into HTML.
+    #
+    # input         - the source text in a markup format
+    # context       - a Hash with the template context:
+    #                 :commit
+    #                 :project
+    #                 :project_wiki
+    #                 :requested_path
+    #                 :ref
+    #
+    def self.render(file_name, input, context)
+      html = GitHub::Markup.render(file_name, input).
+        force_encoding(input.encoding)
+
+      html = Banzai.post_process(html, context)
+
+      html.html_safe
+    end
+  end
+end