Add "empty_repo?" method to Repository role

Replaces two calls that this method simplifies

app/controllers/application_controller.rb

@@ -135,7 +135,7 @@ class ApplicationController < ActionController::Base
   end
 
   def require_non_empty_project
-    redirect_to @project unless @project.repo_exists? && @project.has_commits?
+    redirect_to @project if @project.empty_repo?
   end
 
   def no_cache_headers

app/controllers/projects_controller.rb

@@ -50,7 +50,7 @@ class ProjectsController < ApplicationController
 
     respond_to do |format|
       format.html do
-         if @project.repo_exists? && @project.has_commits?
+         unless @project.empty_repo?
            @last_push = current_user.recent_push(@project.id)
            render :show
          else

app/roles/repository.rb

@@ -8,6 +8,10 @@ module Repository
     false
   end
 
+  def empty_repo?
+    !repo_exists? || !has_commits?
+  end
+
   def commit(commit_id = nil)
     Commit.find_or_first(repo, commit_id, root_ref)
   end

spec/roles/repository_spec.rb

@@ -0,0 +1,22 @@
+require 'spec_helper'
+
+describe Project, "Repository" do
+  let(:project) { build(:project) }
+
+  describe "#empty_repo?" do
+    it "should return true if the repo doesn't exist" do
+      project.stub(repo_exists?: false, has_commits?: true)
+      project.should be_empty_repo
+    end
+
+    it "should return true if the repo has commits" do
+      project.stub(repo_exists?: true, has_commits?: false)
+      project.should be_empty_repo
+    end
+
+    it "should return false if the repo exists and has commits" do
+      project.stub(repo_exists?: true, has_commits?: true)
+      project.should_not be_empty_repo
+    end
+  end
+end