[installer] Group support added for Development Pods mirroring the folder structure

CHANGELOG.md

@@ -37,6 +37,10 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
   [Samuel Giddins](https://github.com/segiddins)
   [#2914](https://github.com/CocoaPods/CocoaPods/issues/2914)
 
+* Installer changed to organize a development pod's source and resource files
+  into subgroups reflecting their organization in the filesystem.
+  [Imre mihaly](https://github.com/imihaly)
+
 ##### Bug Fixes
 
 * Fix updating a pod that has subspec dependencies.  

lib/cocoapods/installer/file_references_installer.rb

@@ -67,7 +67,7 @@ module Pod
       #
       def add_source_files_references
         UI.message '- Adding source files to Pods project' do
-          add_file_accessors_paths_to_pods_group(:source_files)
+          add_file_accessors_paths_to_pods_group(:source_files, nil, true)
         end
       end
 
@@ -100,8 +100,8 @@ module Pod
       #
       def add_resources
         UI.message '- Adding resources to Pods project' do
-          add_file_accessors_paths_to_pods_group(:resources, :resources)
-          add_file_accessors_paths_to_pods_group(:resource_bundle_files, :resources)
+          add_file_accessors_paths_to_pods_group(:resources, :resources, true)
+          add_file_accessors_paths_to_pods_group(:resource_bundle_files, :resources, true)
         end
       end
 
@@ -152,14 +152,20 @@ module Pod
       # @param  [Symbol] group_key
       #         The key of the group of the Pods project.
       #
+      # @param  [Bool] group_if_development
+      #         Wether organizing the a local pod's files in subgroups inside
+      #         the pod's group is allowed.
+      #
       # @return [void]
       #
-      def add_file_accessors_paths_to_pods_group(file_accessor_key, group_key = nil)
+      def add_file_accessors_paths_to_pods_group(file_accessor_key, group_key = nil, group_if_development = false)
         file_accessors.each do |file_accessor|
+          pod_name = file_accessor.spec.name
+          local = sandbox.local?(pod_name)
           paths = file_accessor.send(file_accessor_key)
           paths.each do |path|
             group = pods_project.group_for_spec(file_accessor.spec.name, group_key)
-            pods_project.add_file_reference(path, group)
+            pods_project.add_file_reference(path, group, local && group_if_development)
           end
         end
       end

lib/cocoapods/project.rb

@@ -59,6 +59,7 @@ module Pod
 
       parent_group = development ? development_pods : pods
       source_tree = absolute ? :absolute : :group
+      
       group = parent_group.new_group(pod_name, path, source_tree)
       group
     end
@@ -144,13 +145,25 @@ module Pod
     # @param  [PBXGroup] group
     #         The group for the new file reference.
     #
+    # @param  [Bool] development
+    #         Wether the file is part of a development pod.
+    #         If it is then groups will be created to reflect the code's structure in the filesystem.
+    #
     # @return [PBXFileReference] The new file reference.
     #
-    def add_file_reference(absolute_path, group)
+    def add_file_reference(absolute_path, group, development = false)
       unless Pathname.new(absolute_path).absolute?
         raise ArgumentError, "Paths must be absolute #{absolute_path}"
       end
 
+      if development
+        relative_path = Pathname.new(absolute_path).relative_path_from(group.real_path).dirname
+        relative_path.each_filename do|name| 
+          next if name == "." 
+          group = group[name] || group.new_group(name, name) 
+        end
+      end
+       
       if ref = reference_for_path(absolute_path)
         ref
       else

spec/unit/project_spec.rb

@@ -161,6 +161,7 @@ module Pod
         before do
           @project.add_pod_group('BananaLib', config.sandbox.pod_dir('BananaLib'), false)
           @file = config.sandbox.pod_dir('BananaLib') + 'file.m'
+          @nested_file = config.sandbox.pod_dir('BananaLib') + 'Dir/SubDir/nested_file.m'
           @group = @project.group_for_spec('BananaLib')
         end
 
@@ -169,6 +170,11 @@ module Pod
           ref.hierarchy_path.should == '/Pods/BananaLib/file.m'
         end
 
+        it "adds subgroups for a file reference if requested" do
+          ref = @project.add_file_reference(@nested_file, @group, true)
+          ref.hierarchy_path.should == '/Pods/BananaLib/Dir/SubDir/nested_file.m'	  
+        end
+
         it "it doesn't duplicate file references for a single path" do
           ref_1 = @project.add_file_reference(@file, @group)
           ref_2 = @project.add_file_reference(@file, @group)