#465: Fixed: undefined method 'uname' for nil:NilClass

app/policies/project_policy.rb

@@ -15,11 +15,14 @@ class ProjectPolicy < ApplicationPolicy
     local_reader?
   end
   alias_method :read?,                      :show?
-  alias_method :fork?,                      :show?
   alias_method :archive?,                   :show?
   alias_method :get_id?,                    :show?
   alias_method :refs_list?,                 :show?
 
+  def fork?
+    !user.guest? && show?
+  end
+
   def create?
     return false if user.guest?
     return true  if is_admin?

app/views/projects/git/trees/_show.html.haml

@@ -3,6 +3,7 @@
       'ng-init' => "init('#{@project.name_with_owner}', '#{@treeish}', '#{@path}')" }
   .files
     .pull-left= render 'whereami'
+    - if policy(@project).fork?
       .pull-right= render 'fork'
   .clearfix
   %table.table.table-hover

spec/policies/project_policy_spec.rb

@@ -16,7 +16,7 @@ RSpec.describe ProjectPolicy, type: :policy do
     end
   end
 
-  %i(show? read? fork? archive? get_id? refs_list?).each do |perm|
+  %i(show? read? archive? get_id? refs_list?).each do |perm|
     permissions perm do
       it "grants access to anonymous user" do
         expect(subject).to permit(User.new, project)
@@ -53,6 +53,41 @@ RSpec.describe ProjectPolicy, type: :policy do
     end
   end
 
+  permissions :fork? do
+    it "denies access to anonymous user" do
+      expect(subject).to_not permit(User.new, project)
+    end
+
+    it "grants access to user" do
+      expect(subject).to permit(user, project)
+    end
+
+    context 'hidden project' do
+      before do
+        project.visibility = 'hidden'
+      end
+
+      it "grants access for owner of project" do
+        expect(subject).to permit(project.owner, project)
+      end
+
+      it "grants access for member of project owner group" do
+        project = FactoryGirl.build(:group_project)
+        allow_any_instance_of(ProjectPolicy).to receive(:user_group_ids).and_return([project.owner_id])
+        expect(subject).to permit(user, project)
+      end
+
+      it "grants access for reader of project" do
+        allow_any_instance_of(ProjectPolicy).to receive(:local_reader?).and_return(true)
+        expect(subject).to permit(user, project)
+      end
+
+      it "grants access for to global admin" do
+        expect(subject).to permit(FactoryGirl.create(:admin), project)
+      end
+    end
+  end
+
   permissions :create? do
     it "denies access to anonymous user" do
       expect(subject).to_not permit(User.new, project)