[outdated] Don’t show pods that can't be checked.

lib/cocoapods/command/outdated.rb

@@ -6,7 +6,8 @@ module Pod
 
     $ pod outdated
 
-      Shows the outdated pods in the current Podfile.lock.}
+      Shows the outdated pods in the current Podfile.lock, but only those from
+      spec repos, not those from local/external sources or `:head' versions.}
       end
 
       def self.options
@@ -30,41 +31,17 @@ module Pod
         resolver.update_mode = true
         resolver.update_external_specs = false
         resolver.resolve
-        pods_to_install = resolver.pods_to_install
-        external_pods   = resolver.pods_from_external_sources
 
-        known_update_specs = []
-        head_mode_specs = []
-        resolver.specs.each do |s|
-          next if external_pods.include?(s.name)
-          next unless pods_to_install.include?(s.name)
-
-          if s.version.head?
-            head_mode_specs << s.name
-          else
-            known_update_specs << s.to_s
-          end
+        names = resolver.pods_to_install - resolver.pods_from_external_sources
+        specs = resolver.specs.select do |spec|
+          names.include?(spec.name) && !spec.version.head?
         end
 
-        if pods_to_install.empty?
-          puts "\nNo updates are available.\n".yellow
+        if specs.empty?
+          puts "No updates are available.".yellow
         else
-
-          unless known_update_specs.empty?
-            puts "\nThe following updates are available:".green
-            puts "  - " << known_update_specs.join("\n  - ") << "\n"
-          end
-
-          unless head_mode_specs.empty?
-            puts "\nThe following pods might present updates as they are in head mode:".green
-            puts "  - " << head_mode_specs.join("\n  - ") << "\n"
-          end
-
-          unless (external_pods).empty?
-            puts "\nThe following pods might present updates as they loaded from an external source:".green
-            puts "  - " << external_pods.join("\n  - ") << "\n"
-          end
-          puts
+          puts "The following updates are available:".green
+          puts "  - " << specs.join("\n  - ") << "\n"
         end
       end
     end

lib/cocoapods/resolver.rb

@@ -120,13 +120,13 @@ module Pod
     def pods_to_install
       unless @pods_to_install
         if lockfile
-          @pods_to_install = specs.select { |spec|
+          @pods_to_install = specs.select do |spec|
             spec.version != lockfile.pods_versions[spec.pod_name]
-          }.map(&:name)
+          end.map(&:name)
           if update_mode
-            @pods_to_install += specs.select { |spec|
+            @pods_to_install += specs.select do |spec|
               spec.version.head? || pods_from_external_sources.include?(spec.pod_name)
-            }.map(&:name)
+            end.map(&:name)
           end
           @pods_to_install += @pods_by_state[:added] + @pods_by_state[:changed]
         else

spec/unit/resolver_spec.rb

@@ -326,7 +326,7 @@ module Pod
         @resolver.should_install?("JSONKit").should.be.true
       end
 
-      it "respects the constraints of the pofile" do
+      it "respects the constraints of the podfile" do
         podfile = Podfile.new do
           platform :ios
           pod 'BlocksKit'