Symlink vendored framework headers into the public headers dir

Fixes #3161

lib/cocoapods/installer/file_references_installer.rb

@@ -126,6 +126,10 @@ module Pod
               header_mappings(headers_sandbox, file_accessor, file_accessor.public_headers).each do |namespaced_path, files|
                 sandbox.public_headers.add_files(namespaced_path, files, library.platform)
               end
+
+              vendored_frameworks_header_mappings(headers_sandbox, file_accessor).each do |namespaced_path, files|
+                sandbox.public_headers.add_files(namespaced_path, files, library.platform)
+              end
             end
           end
         end
@@ -208,6 +212,40 @@ module Pod
         mappings
       end
 
+      # Computes the destination sub-directory in the sandbox for headers
+      # from inside vendored frameworks.
+      #
+      # @param  [Pathname] headers_sandbox
+      #         The sandbox where the header links should be stored for this
+      #         Pod.
+      #
+      # @param  [Sandbox::FileAccessor] file_accessor
+      #         The consumer file accessor for which the headers need to be
+      #         linked.
+      #
+      # @return [Hash{Pathname => Array<Pathname>}] A hash containing the
+      #         headers folders as the keys and the absolute paths of the
+      #         header files as the values.
+      #
+      def vendored_frameworks_header_mappings(headers_sandbox, file_accessor)
+        mappings = {}
+        file_accessor.vendored_frameworks.each do |framework|
+          headers_dir = Sandbox::FileAccessor.vendored_frameworks_headers_dir(framework)
+          headers = Sandbox::FileAccessor.vendored_frameworks_headers(framework)
+          framework_name = framework.basename(framework.extname)
+          dir = headers_sandbox + framework_name
+          headers.each do |header|
+            # the relative path of framework headers should be kept,
+            # not flattened like is done for most public headers.
+            relative_path = header.relative_path_from(headers_dir)
+            sub_dir = dir + relative_path.dirname
+            mappings[sub_dir] ||= []
+            mappings[sub_dir] << header
+          end
+        end
+        mappings
+      end
+
       #-----------------------------------------------------------------------#
     end
   end

lib/cocoapods/sandbox/file_accessor.rb

@@ -152,13 +152,31 @@ module Pod
         paths_for_attribute(:vendored_frameworks, true)
       end
 
+      # @param  [Pathname] framework
+      #         The vendored framework to search into.
+      # @return [Array<Pathname>] The paths of the header directory of the
+      #         vendored framework.
+      #
+      def self.vendored_frameworks_headers_dir(framework)
+        headers_dir = (framework + 'Headers').realpath
+      end
+
+      # @param  [Pathname] framework
+      #         The vendored framework to search into.
+      # @return [Array<Pathname>] The paths of the headers included in the
+      #         vendored framework.
+      #
+      def self.vendored_frameworks_headers(framework)
+        headers_dir = self.vendored_frameworks_headers_dir(framework)
+        Pathname.glob(headers_dir + GLOB_PATTERNS[:public_header_files])
+      end
+
       # @return [Array<Pathname>] The paths of the framework headers that come
       #         shipped with the Pod.
       #
       def vendored_frameworks_headers
         vendored_frameworks.map do |framework|
-          headers_dir = (framework + 'Headers').realpath
-          Pathname.glob(headers_dir + GLOB_PATTERNS[:public_header_files])
+          self.class.vendored_frameworks_headers(framework)
         end.flatten.uniq
       end
 

spec/unit/installer/file_references_installer_spec.rb

@@ -65,8 +65,10 @@ module Pod
         headers_root = config.sandbox.public_headers.root
         public_header = headers_root + 'BananaLib/Banana.h'
         private_header = headers_root + 'BananaLib/BananaPrivate.h'
+        framework_header = headers_root + 'BananaLib/Bananalib/Bananalib.h'
         public_header.should.exist
         private_header.should.not.exist
+        framework_header.should.exist
       end
     end
 
@@ -125,6 +127,17 @@ module Pod
           }
         end
       end
+
+      describe '#vendored_frameworks_header_mappings' do
+        it 'returns the vendored frameworks header mappings' do
+          headers_sandbox = Pathname.new('BananaLib')
+          header = @file_accessor.root + 'Bananalib.framework/Versions/A/Headers/Bananalib.h'
+          mappings = @installer.send(:vendored_frameworks_header_mappings, headers_sandbox, @file_accessor)
+          mappings.should == {
+            (headers_sandbox + 'Bananalib') => [header],
+          }
+        end
+      end
     end
 
     #-------------------------------------------------------------------------#