Add latest changes from gitlab-org/gitlab@master

1 files changed, 10 insertions, 0 deletions

diff --git a/app/controllers/projects/blob_controller.rb b/app/controllers/projects/blob_controller.rb
index e108150e432..ab1ac0beb36 100644
--- a/app/controllers/projects/blob_controller.rb
+++ b/app/controllers/projects/blob_controller.rb
@@ -31,6 +31,7 @@ class Projects::BlobController < Projects::ApplicationController
   before_action :authorize_edit_tree!, only: [:new, :create, :update, :destroy]
 
   before_action :commit, except: [:new, :create]
+  before_action :check_for_ambiguous_ref, only: [:show]
   before_action :blob, except: [:new, :create]
   before_action :require_branch_head, only: [:edit, :update]
   before_action :editor_variables, except: [:show, :preview, :diff]
@@ -156,6 +157,15 @@ class Projects::BlobController < Projects::ApplicationController
     end
   end
 
+  def check_for_ambiguous_ref
+    @ref_type = ref_type
+
+    if @ref_type == ExtractsRef::BRANCH_REF_TYPE && ambiguous_ref?(@project, @ref)
+      branch = @project.repository.find_branch(@ref)
+      redirect_to project_blob_path(@project, File.join(branch.target, @path))
+    end
+  end
+
   def commit
     @commit ||= @repository.commit(@ref)