Add BlobPresenter for highlighting

Force FoundBlob to use BlobPresenter

2 files changed, 17 insertions, 1 deletions

diff --git a/app/models/blob.rb b/app/models/blob.rb
index e5854415dd2..425ba69c073 100644
--- a/app/models/blob.rb
+++ b/app/models/blob.rb
@@ -1,7 +1,9 @@
 # frozen_string_literal: true
 
-# Blob is a Rails-specific wrapper around Gitlab::Git::Blob objects
+# Blob is a Rails-specific wrapper around Gitlab::Git::Blob, SnippetBlob and Ci::ArtifactBlob
 class Blob < SimpleDelegator
+  include Presentable
+
   CACHE_TIME = 60 # Cache raw blobs referred to by a (mutable) ref for 1 minute
   CACHE_TIME_IMMUTABLE = 3600 # Cache blobs referred to by an immutable reference for 1 hour
 
diff --git a/app/presenters/blob_presenter.rb b/app/presenters/blob_presenter.rb
new file mode 100644
index 00000000000..2bca413876c
--- /dev/null
+++ b/app/presenters/blob_presenter.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class BlobPresenter < Gitlab::View::Presenter::Simple
+  presents :blob
+
+  def highlight(plain: nil)
+    Gitlab::Highlight.highlight(
+      blob.path,
+      blob.data,
+      language: blob.language_from_gitattributes,
+      plain: (plain || blob.no_highlighting?)
+    )
+  end
+end