Added LFS badge to indicate LFS tracked files

Closes #15567

app/assets/stylesheets/framework/files.scss

@@ -396,3 +396,8 @@ span.idiff {
 .file-fork-suggestion-note {
   margin-right: 1.5em;
 }
+
+.label-lfs {
+  color: $common-gray-light;
+  border: 1px solid $common-gray-light;
+}

app/controllers/projects/tree_controller.rb

@@ -26,6 +26,7 @@ class Projects::TreeController < Projects::ApplicationController
 
     respond_to do |format|
       format.html do
+        @lfs_blobs = Gitlab::Git::Blob.batch_lfs_pointers(@project.repository, @tree.blobs.map(&:id))
         @last_commit = @repository.last_commit_for_path(@commit.id, @tree.path) || @commit
       end
 

app/views/projects/blob/_header_content.html.haml

@@ -8,3 +8,6 @@
 
   %small
     = number_to_human_size(blob.raw_size)
+
+  - if blob.stored_externally?
+    %span.label.label-lfs.append-right-5 LFS

app/views/projects/tree/_blob_item.html.haml

+- is_lfs_blob = @lfs_blobs.select{|b| b.id === blob_item.id }.any?
 %tr{ class: "tree-item #{tree_hex_class(blob_item)}" }
   %td.tree-item-file-name
     = tree_icon(type, blob_item.mode, blob_item.name)
     - file_name = blob_item.name
     = link_to project_blob_path(@project, tree_join(@id || @commit.id, blob_item.name)), class: 'str-truncated', title: file_name do
       %span= file_name
+    - if is_lfs_blob
+      %span.label.label-lfs.prepend-left-5 LFS
   %td.hidden-xs.tree-commit
   %td.tree-time-ago.cgray.text-right
     = render 'projects/tree/spinner'

changelogs/unreleased/lfs-badge.yml

+---
+title: Added badge to tree & blob views to indicate LFS tracked files
+merge_request:
+author:
+type: added