Minor fixes to the installation process

lib/cocoapods/hooks/target_installer_data.rb

@@ -19,18 +19,9 @@ module Pod
       #       updated if they need a reference to the prefix header.
       #
       def prefix_header_filename
-        UI.warn "The usage of the TargetInstaller#prefix_header_filename is deprecated."
         library.prefix_header_path.relative_path_from(sandbox.root)
       end
 
-      # @return [PBXNativeTarget] the target generated by the installation
-      #         process.
-      #
-      # @note   Generated by the {#add_target} step.
-      #
-      def target
-      end
-
       # @return [Project] the Pods project of the sandbox.
       #
       def project
@@ -43,13 +34,12 @@ module Pod
         library.target_definition
       end
 
-
-      # @return [TargetDefinition] the target definition of the library.
+      # @return [PBXNativeTarget] the target generated by the installation
+      #         process.
       #
       def target
         library.target
       end
-
     end
   end
 end

lib/cocoapods/installer.rb

@@ -173,19 +173,19 @@ module Pod
     def detect_pods_to_install
       names = []
 
-      # TODO
-      # specs_by_root_name.each do |root_name, specs|
-      #   if update_mode
-      #     if specs.any? { |spec| spec.version.head? } #|| resolver.pods_from_external_sources.include?(root_name)
-      #       @names_of_pods_to_install << root_name
-      #     end
-      #   end
-
-      #   unless pod_installation_exists?(root_name)
-      #     @names_of_pods_to_install << root_name
-      #   end
-      # end
-      # TODO user root name.
+      analyzer.specifications.each do |spec|
+        root_name = spec.root.name
+
+        if update_mode
+          if spec.version.head? #|| TODO resolver.pods_from_external_sources.include?(root_name)
+            names << root_name
+          end
+        end
+
+        unless sandbox.pod_dir(root_name).exist?
+          names << root_name
+        end
+      end
 
       names += analyzer.sandbox_state.added + analyzer.sandbox_state.changed
       names = names.map { |name| Specification.root_name(name) }
@@ -275,7 +275,7 @@ module Pod
     #
     def install_pod_sources
       @installed_specs = []
-        root_specs = analyzer.specifications.map { |spec| spec.root }
+      root_specs = analyzer.specifications.map { |spec| spec.root }.uniq
       root_specs.each do |spec|
         if names_of_pods_to_install.include?(spec.name)
           UI.section("Installing #{spec}".green, "-> ".green) do

lib/cocoapods/installer/file_references_installer.rb

@@ -103,7 +103,7 @@ module Pod
       #         platform in a single installation.
       #
       def file_accessors
-        @file_accessors ||= libraries.map(&:file_accessors).flatten
+        @file_accessors ||= libraries.map(&:file_accessors).flatten.compact
       end
 
       #-----------------------------------------------------------------------#

lib/cocoapods/installer/target_installer.rb

@@ -123,6 +123,8 @@ module Pod
 
       # Creates the link to the headers of the Pod in the sandbox.
       #
+      # TODO: clean up
+      #
       # @return [void]
       #
       def link_headers

lib/cocoapods/installer/user_project_integrator.rb

@@ -300,9 +300,10 @@ module Pod
           configs_by_overridden_key = {}
           target.build_configurations.each do |config|
             xcconfig.attributes.keys.each do |key|
-              configs_by_overridden_key[key] ||= []
               target_value = config.build_settings[key]
+
               if target_value && !target_value.include?('$(inherited)')
+                configs_by_overridden_key[key] ||= []
                 configs_by_overridden_key[key] << config.name
               end
             end
@@ -310,10 +311,10 @@ module Pod
             configs_by_overridden_key.each do |key, config_names|
               name    = "#{target.name} [#{config_names.join(' - ')}]"
               actions = [
-                "Use the `$(inherited)' flag, or",
+                "Use the `$(inherited)` flag, or",
                 "Remove the build settings from the target."
               ]
-              UI.warn("The target `#{name}' overrides the `#{key}' build " \
+              UI.warn("The target `#{name}` overrides the `#{key}` build " \
                       "setting defined in `#{library.xcconfig_relative_path}'.",
                       actions)
             end

lib/cocoapods/sandbox/file_accessor.rb

@@ -191,7 +191,8 @@ module Pod
         end
 
         unless file_lists.empty?
-          UI.warn "[#{spec_consumer.spec.name}] The usage of Rake FileList is deprecated. Use `exclude_files`."
+          # TODO Restore warning in 0.17 proper
+          # UI.warn "[#{spec_consumer.spec.name}] The usage of Rake FileList is deprecated. Use `exclude_files`."
         end
 
         result.flatten.compact.uniq

spec/unit/installer/file_references_installer_spec.rb

@@ -47,6 +47,10 @@ module Pod
         installer.send(:file_accessors).count.should == 1
       end
 
+      xit "handles libraries without pods and hence without file accessors" do
+
+      end
+
     end
 
     #-------------------------------------------------------------------------#