Merge branch 'rename-repo-files' into 'master'

Implements the form for renaming the new filename on the file edit page

## What does this MR do?
Adds the possibility to edit a filename when editing the content of a file on Gitlab

this MR was made to solve #5850 

![Screen_Shot_2016-07-01_at_16.45.53](/uploads/eeed05800e3dc11f1e3840e0e4fa06b5/Screen_Shot_2016-07-01_at_16.45.53.png)

See merge request !5049

2 files changed, 8 insertions, 1 deletions

diff --git a/app/controllers/concerns/creates_commit.rb b/app/controllers/concerns/creates_commit.rb
index dacb5679dd3..f2b8f297bc2 100644
--- a/app/controllers/concerns/creates_commit.rb
+++ b/app/controllers/concerns/creates_commit.rb
@@ -7,7 +7,8 @@ module CreatesCommit
     commit_params = @commit_params.merge(
       source_project: @project,
       source_branch: @ref,
-      target_branch: @target_branch
+      target_branch: @target_branch,
+      previous_path: @previous_path
     )
 
     result = service.new(@tree_edit_project, current_user, commit_params).execute
diff --git a/app/controllers/projects/blob_controller.rb b/app/controllers/projects/blob_controller.rb
index 5356fdf010d..eda3727a28d 100644
--- a/app/controllers/projects/blob_controller.rb
+++ b/app/controllers/projects/blob_controller.rb
@@ -38,6 +38,12 @@ class Projects::BlobController < Projects::ApplicationController
   end
 
   def update
+    if params[:file_path].present?
+      @previous_path = @path
+      @path = params[:file_path]
+      @commit_params[:file_path] = @path
+    end
+
     after_edit_path =
       if from_merge_request && @target_branch == @ref
         diffs_namespace_project_merge_request_path(from_merge_request.target_project.namespace, from_merge_request.target_project, from_merge_request) +