Fix hardcoded condition and unassigned vars

app/controllers/public/projects_controller.rb

@@ -19,6 +19,6 @@ class Public::ProjectsController < ApplicationController
     @recent_tags = @repository.tags.first(10)
 
     @commit = @repository.commit(params[:ref])
-    @tree = Tree.new(@repository, @commit.id, @ref, @path)
+    @tree = Tree.new(@repository, @commit.id)
   end
 end

app/views/public/projects/_tree.html.haml

-- if false#tree.readme
+- if tree.readme
   = render "projects/tree/readme", readme: tree.readme
 - else
   .alert