For some unknown reason, the Pods group was created twice sometimes.

Fixes: https://secure.travis-ci.org/#!/CocoaPods/CocoaPods/jobs/2236387

lib/cocoapods/project.rb

@@ -31,12 +31,12 @@ module Pod
 
     # Shortcut access to the `Pods' PBXGroup.
     def pods
-      groups.find { |g| g.name == 'Pods' } || groups.new({ 'name' => 'Pods' })
+      @pods ||= groups.where(:name => 'Pods') || groups.new('name' => 'Pods')
     end
 
     # Shortcut access to the `Local Pods' PBXGroup.
     def local_pods
-      groups.find { |g| g.name == 'Local Pods' } || groups.new({ 'name' => 'Local Pods' })
+      @local_pods ||= groups.where(:name => 'Local Pods') || groups.new('name' => 'Local Pods')
     end
 
     # Adds a group as child to the `Pods' group namespacing subspecs.
@@ -44,7 +44,7 @@ module Pod
       groups = parent_group.groups
       group = nil
       name.split('/').each do |name|
-        group = groups.find { |g| g.name == name } || groups.new('name' => name)
+        group = groups.where(:name => name) || groups.new('name' => name)
         groups = group.groups
       end
       group

spec/unit/installer_spec.rb

@@ -71,12 +71,12 @@ module Pod
 
       it "adds the files of the pod to the Pods project only once" do
         @installer.install!
-        group = @installer.project.pods.groups.find{|g| g.name == 'Reachability'}
+        group = @installer.project.pods.groups.where(:name => 'Reachability')
         group.files.map(&:name).should == ["Reachability.h", "Reachability.m"]
       end
 
       it "lists a pod only once" do
-        reachability_pods = @installer.pods.map(&:to_s).select{|s| s.include?('Reachability') }
+        reachability_pods = @installer.pods.map(&:to_s).select { |s| s.include?('Reachability') }
         reachability_pods.count.should == 1
       end