Prevent empty public projects from throwing exceptions

GITLAB-1279 (GITLAB-1264)

Change-Id: Ifb5b4313bc91fae720f8ef5c36152c45e9d38934

app/controllers/public/projects_controller.rb

@@ -16,9 +16,11 @@ class Public::ProjectsController < ApplicationController
     render_404 and return unless @project
 
     @repository = @project.repository
+    unless @project.empty_repo?
       @recent_tags = @repository.tags.first(10)
 
       @commit = @repository.commit(params[:ref])
       @tree = Tree.new(@repository, @commit.id)
     end
+  end
 end

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

@@ -15,6 +15,7 @@
 
 %br
 .row
+  - unless @project.empty_repo?
     .span9
       = render 'tree', tree: @tree
     .span3
@@ -44,3 +45,5 @@
                   %i.icon-calendar
                     = time_ago_in_words(tag.commit.committed_date)
                   ago
+  - else
+    = 'Empty Repository'

features/public/public_projects.feature

@@ -12,3 +12,8 @@ Feature: Public Projects Feature
     When I visit public page for "Community" project
     Then I should see public project details
     And I should see project readme
+
+  Scenario: I visit an empty public project page
+    Given public empty project "Empty Public Project"
+    When I visit empty public project page
+    Then I should see empty public project details
\ No newline at end of file

features/steps/public/projects_feature.rb

@@ -9,6 +9,11 @@ class Spinach::Features::PublicProjectsFeature < Spinach::FeatureSteps
     page.should_not have_content "Enterprise"
   end
 
+  step 'I should see project "Empty Public Project"' do
+    page.should have_content "Empty Public Project"
+    puts page.save_page('foo.html')
+  end
+
   step 'I should see public project details' do
     page.should have_content '32 branches'
     page.should have_content '16 tags'
@@ -22,6 +27,19 @@ class Spinach::Features::PublicProjectsFeature < Spinach::FeatureSteps
     create :project_with_code, name: 'Community', public: true
   end
 
+  step 'public empty project "Empty Public Project"' do
+    create :project, name: 'Empty Public Project', public: true
+  end
+
+  step 'I visit empty public project page' do
+    project = Project.find_by_name('Empty Public Project')
+    visit public_project_path(project)
+  end
+
+  step 'I should see empty public project details' do
+    page.should have_content 'Empty Repository'
+  end
+
   step 'private project "Enterprise"' do
     create :project, name: 'Enterprise'
   end