Integrate ODRs for app specs.

CHANGELOG.md

@@ -8,6 +8,12 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
 
 ##### Enhancements
 
+* Add support for integrating on demand resources.  
+  [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
+  [JunyiXie](https://github.com/JunyiXie)
+  [#9606](https://github.com/CocoaPods/CocoaPods/issues/9606)
+  [#10845](https://github.com/CocoaPods/CocoaPods/pull/10845)
+
 * Integrate `project_header_files` specified by specs.  
   [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
   [#9820](https://github.com/CocoaPods/CocoaPods/issues/9820)
@@ -277,11 +283,6 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
 
 ##### Enhancements
 
-* Add support for integrating on demand resources.  
-  [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
-  [JunyiXie](https://github.com/JunyiXie)
-  [#9606](https://github.com/CocoaPods/CocoaPods/issues/9606)
-
 * Add the App Clip product symbol to the list of products that need embedding.  
   [Igor Makarov](https://github.com/igor-makarov)
   [#9882](https://github.com/CocoaPods/CocoaPods/pull/9882)

examples/OnDemandResources Example/Podfile

@@ -2,9 +2,10 @@
 # platform :ios, '9.0'
 
 target 'OnDemandResourcesDemo' do
+  platform :ios, '13.2'
   # Comment the next line if you don't want to use dynamic frameworks
   use_frameworks!
-    pod 'TestLibrary', :path  => './TestLibrary'
+    pod 'TestLibrary', :path  => './TestLibrary', :appspecs => ['App1', 'App2'], :testspecs => ['Tests']
 
   # Pods for OnDemandResourcesDemo
 

examples/OnDemandResources Example/TestLibrary/App1/Classes/AppDelegate.swift

@@ -0,0 +1,20 @@
+import UIKit
+
+class ViewController: UIViewController {
+    override func viewDidLoad() {
+        view.backgroundColor = .green
+    }
+}
+
+@UIApplicationMain
+class AppDelegate: NSObject, UIApplicationDelegate {
+    var window: UIWindow?
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+        window = UIWindow(frame: UIScreen.main.bounds)
+        window?.rootViewController = UINavigationController(rootViewController: ViewController())
+        window?.makeKeyAndVisible()
+
+        return true
+    }
+}

examples/OnDemandResources Example/TestLibrary/App2/Classes/AppDelegate.swift

@@ -0,0 +1,20 @@
+import UIKit
+
+class ViewController: UIViewController {
+    override func viewDidLoad() {
+        view.backgroundColor = .green
+    }
+}
+
+@UIApplicationMain
+class AppDelegate: NSObject, UIApplicationDelegate {
+    var window: UIWindow?
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+        window = UIWindow(frame: UIScreen.main.bounds)
+        window?.rootViewController = UINavigationController(rootViewController: ViewController())
+        window?.makeKeyAndVisible()
+
+        return true
+    }
+}

examples/OnDemandResources Example/TestLibrary/TestLibrary.podspec

@@ -28,10 +28,12 @@ TODO: Add long description of the pod here.
   s.source           = { :git => 'https://github.com/lizhuoli1126@126.com/TestLibrary.git', :tag => s.version.to_s }
   # s.social_media_url = 'https://twitter.com/<TWITTER_USERNAME>'
 
-  s.ios.deployment_target = '8.0'
+  s.ios.deployment_target = '9.0'
+
+  s.swift_version = '4'
 
   s.source_files = 'TestLibrary/Classes/**/*'
-  
+
   s.on_demand_resources = {
     't1' => ['on_demand_bundle1/*'],
     't2' => ['on_demand_bundle2/*']
@@ -41,5 +43,31 @@ TODO: Add long description of the pod here.
     'DEFINES_MODULE' => 'YES'
   }
 
+  s.app_spec 'App1' do |app_spec|
+    app_spec.source_files = 'App1/Classes/**/*'
+
+    app_spec.on_demand_resources = {
+      'a1' => ['App1/app1_on_demand_bundle1/*']
+    }
+  end
+
+  s.app_spec 'App2' do |app_spec|
+    app_spec.source_files = 'App2/Classes/**/*'
+
+    app_spec.on_demand_resources = {
+      'a2' => ['App2/app2_on_demand_bundle1/*']
+    }
+  end
+
+  s.test_spec 'Tests' do |test_spec|
+    test_spec.source_files = 'Tests/Classes/**/*'
+
+    test_spec.app_host_name = 'TestLibrary/App1'
+    test_spec.requires_app_host = true
+    test_spec.dependency 'TestLibrary/App1'
 
+    test_spec.on_demand_resources = {
+      'test1' => ['Tests/test_on_demand_bundle/*']
+    }
+  end
 end

lib/cocoapods/installer/user_project_integrator/target_integrator.rb

@@ -433,6 +433,85 @@ def embed_frameworks_output_paths(framework_paths, xcframeworks)
             end
             paths + xcframework_paths
           end
+
+          # Updates a projects native targets to include on demand resources specified by the supplied parameters.
+          # Note that currently, only app level targets are allowed to include on demand resources.
+          #
+          # @param  [Sandbox] sandbox
+          #         The sandbox to use for calculating ODR file references.
+          #
+          # @param  [Xcodeproj::Project] project
+          #         The project to update known asset tags as well as add the ODR group.
+          #
+          # @param  [Xcodeproj::PBXNativeTarget, Array<Xcodeproj::PBXNativeTarget>] native_targets
+          #         The native targets to integrate on demand resources into.
+          #
+          # @param  [Sandbox::FileAccessor, Array<Sandbox::FileAccessor>] file_accessors
+          #         The file accessors that that provide the ODRs to integrate.
+          #
+          # @param  [Xcodeproj::PBXGroup] parent_odr_group
+          #         The group to use as the parent to add ODR file references into.
+          #
+          # @param  [String] target_odr_group_name
+          #         The name to use for the group created that contains the ODR file references.
+          #
+          # @return [void]
+          #
+          def add_on_demand_resources(sandbox, project, native_targets, file_accessors, parent_odr_group,
+                                      target_odr_group_name)
+            asset_tags_added = Set.new
+            file_accessors = Array(file_accessors)
+            native_targets = Array(native_targets)
+
+            # Target no longer provides ODR references so remove everything related to this target.
+            if file_accessors.all? { |fa| fa.on_demand_resources.empty? }
+              old_target_odr_group = parent_odr_group[target_odr_group_name]
+              old_odr_file_refs = old_target_odr_group&.recursive_children_groups&.each_with_object({}) do |group, hash|
+                hash[group.name] = group.files
+              end || {}
+              native_targets.each do |user_target|
+                user_target.remove_on_demand_resources(old_odr_file_refs)
+              end
+              old_target_odr_group&.remove_from_project
+              return
+            end
+
+            target_odr_group = parent_odr_group[target_odr_group_name] || parent_odr_group.new_group(target_odr_group_name)
+            current_file_refs = target_odr_group.recursive_children_groups.flat_map(&:files)
+
+            added_file_refs = file_accessors.flat_map do |file_accessor|
+              target_odr_files_refs = Hash[file_accessor.on_demand_resources.map do |tag, resources|
+                tag_group = target_odr_group[tag] || target_odr_group.new_group(tag)
+                asset_tags_added << tag
+                resources_file_refs = resources.map do |resource|
+                  odr_resource_file_ref = Pathname.new(resource).relative_path_from(sandbox.root)
+                  tag_group.find_file_by_path(odr_resource_file_ref.to_s) || tag_group.new_file(odr_resource_file_ref)
+                end
+                [tag, resources_file_refs]
+              end]
+              native_targets.each do |user_target|
+                user_target.add_on_demand_resources(target_odr_files_refs)
+              end
+              target_odr_files_refs.values.flatten
+            end
+
+            # if the target ODR file references were updated, make sure we remove the ones that are no longer present
+            # for the target.
+            remaining_refs = current_file_refs - added_file_refs
+            remaining_refs.each do |ref|
+              native_targets.each do |user_target|
+                user_target.resources_build_phase.remove_file_reference(ref)
+              end
+              ref.remove_from_project
+            end
+            target_odr_group.recursive_children_groups.each { |g| g.remove_from_project if g.empty? }
+
+            unless asset_tags_added.empty?
+              attributes = project.root_object.attributes
+              attributes['KnownAssetTags'] = (attributes['KnownAssetTags'] ||= []) | asset_tags_added.to_a
+              project.root_object.attributes = attributes
+            end
+          end
         end
 
         # Integrates the user project targets. Only the targets that do **not**
@@ -632,68 +711,17 @@ def remove_obsolete_script_phases(removed_phase_names = REMOVED_SCRIPT_PHASE_NAM
           end
         end
 
-        # Updates all user targets to include on demand resources specified by libraries. Note that currently,
-        # only app level targets are allowed to include on demand resources.
-        #
-        # @return [void]
-        #
         def add_on_demand_resources
-          user_project = target.user_project
-
-          asset_tags_added = target.pod_targets.each_with_object(Set.new) do |pod_target, asset_tags|
-            target_odr_group_name = "#{pod_target.label}-OnDemandResources"
+          target.pod_targets.each do |pod_target|
+            # When integrating with the user's project we are only interested in integrating ODRs from library specs
+            # and not test specs or app specs.
             library_file_accessors = pod_target.file_accessors.select { |fa| fa.spec.library_specification? }
-
-            # Target no longer provides ODR references so remove everything related to this target.
-            if library_file_accessors.all? { |fa| fa.on_demand_resources.empty? }
-              old_target_odr_group = user_project.main_group.find_subpath("Pods/#{target_odr_group_name}")
-              old_odr_file_refs = old_target_odr_group&.recursive_children_groups&.each_with_object({}) do |group, hash|
-                hash[group.name] = group.files
-              end || {}
-              target.user_targets.each do |user_target|
-                user_target.remove_on_demand_resources(old_odr_file_refs)
-              end
-              old_target_odr_group&.remove_from_project
-              next
-            end
-
-            target_odr_group = user_project['Pods'][target_odr_group_name] || user_project['Pods'].new_group(target_odr_group_name)
-            current_file_refs = target_odr_group.recursive_children_groups.flat_map(&:files)
-
-            added_file_refs = library_file_accessors.flat_map do |file_accessor|
-              target_odr_files_refs = Hash[file_accessor.on_demand_resources.map do |tag, resources|
-                tag_group = target_odr_group[tag] || target_odr_group.new_group(tag)
-                asset_tags << tag
-                resources_file_refs = resources.map do |resource|
-                  odr_resource_file_ref = Pathname.new(resource).relative_path_from(target.sandbox.root)
-                  tag_group.find_file_by_path(odr_resource_file_ref.to_s) || tag_group.new_file(odr_resource_file_ref)
-                end
-                [tag, resources_file_refs]
-              end]
-              target.user_targets.each do |user_target|
-                user_target.add_on_demand_resources(target_odr_files_refs)
-              end
-              target_odr_files_refs.values.flatten
-            end
-
-            # if the target ODR file references were updated, make sure we remove the ones that are no longer present
-            # for the target.
-            remaining_refs = current_file_refs - added_file_refs
-            unless remaining_refs.empty?
-              remaining_refs.each do |ref|
-                target.user_targets.each do |user_target|
-                  user_target.resources_build_phase.remove_file_reference(ref)
-                end
-                ref.remove_from_project
-              end
-              target_odr_group.recursive_children_groups.each { |g| g.remove_from_project if g.empty? }
-            end
-          end
-
-          unless asset_tags_added.empty?
-            attributes = user_project.root_object.attributes
-            attributes['KnownAssetTags'] = (attributes['KnownAssetTags'] ||= []) | asset_tags_added.to_a
-            target.user_project.root_object.attributes = attributes
+            target_odr_group_name = "#{pod_target.label}-OnDemandResources"
+            # The 'Pods' group would always be there for production code however for tests its sometimes not added.
+            # This ensures its always present and makes it easier for existing and new tests.
+            parent_odr_group = target.user_project.main_group['Pods'] || target.user_project.new_group('Pods')
+            TargetIntegrator.add_on_demand_resources(target.sandbox, target.user_project, target.user_targets,
+                                                     library_file_accessors, parent_odr_group, target_odr_group_name)
           end
         end
 

lib/cocoapods/installer/xcode/pods_project_generator/pod_target_integrator.rb

@@ -34,6 +34,7 @@ def integrate!
               target_installation_result.non_library_specs_by_native_target.each do |native_target, spec|
                 add_embed_frameworks_script_phase(native_target, spec)
                 add_copy_resources_script_phase(native_target, spec)
+                add_on_demand_resources(native_target, spec) if spec.app_specification?
                 UserProjectIntegrator::TargetIntegrator.create_or_update_user_script_phases(script_phases_for_specs(spec), native_target)
               end
               add_copy_dsyms_script_phase(target_installation_result.native_target)
@@ -205,7 +206,7 @@ def add_copy_xcframeworks_script_phase(native_target)
           # vendored dSYMs.
           #
           # @param [PBXNativeTarget] native_target
-          #         the native target for which to add the the copy dSYM files build phase.
+          #         the native target for which to add the copy dSYM files build phase.
           #
           # @return [void]
           #
@@ -248,6 +249,41 @@ def add_copy_dsyms_script_phase(native_target)
             UserProjectIntegrator::TargetIntegrator.set_input_output_paths(phase, input_paths_by_config, output_paths_by_config)
           end
 
+          # Adds the ODRs that are related to this app spec. This includes the app spec dependencies as well as the ODRs
+          # coming from the app spec itself.
+          #
+          # @param [Xcodeproj::PBXNativeTarget] native_target
+          #         the native target for which to add the ODR file references into.
+          #
+          # @param [Specification] app_spec
+          #         the app spec to integrate ODRs for.
+          #
+          # @return [void]
+          #
+          def add_on_demand_resources(native_target, app_spec)
+            dependent_targets = target.dependent_targets_for_app_spec(app_spec)
+            parent_odr_group = native_target.project.group_for_spec(app_spec.name)
+
+            # Add ODRs of the app spec dependencies first.
+            dependent_targets.each do |pod_target|
+              file_accessors = pod_target.file_accessors.select do |fa|
+                fa.spec.library_specification? ||
+                  fa.spec.test_specification? && pod_target.test_app_hosts_by_spec[fa.spec]&.first == app_spec
+              end
+              target_odr_group_name = "#{pod_target.label}-OnDemandResources"
+              UserProjectIntegrator::TargetIntegrator.add_on_demand_resources(target.sandbox, native_target.project,
+                                                                              native_target, file_accessors,
+                                                                              parent_odr_group, target_odr_group_name)
+            end
+
+            # Now add the ODRs of our own app spec declaration.
+            file_accessor = target.file_accessors.find { |fa| fa.spec == app_spec }
+            target_odr_group_name = "#{target.subspec_label(app_spec)}-OnDemandResources"
+            UserProjectIntegrator::TargetIntegrator.add_on_demand_resources(target.sandbox, native_target.project,
+                                                                            native_target, file_accessor,
+                                                                            parent_odr_group, target_odr_group_name)
+          end
+
           # @return [String] the message that should be displayed for the target
           #         integration.
           #

lib/cocoapods/installer/xcode/pods_project_generator/target_installation_result.rb

@@ -79,12 +79,12 @@ def initialize(target, native_target, resource_bundle_targets = [], test_native_
           # @param  [Specification] spec
           #         The specification to base from in order to find the native target.
           #
-          # @return [PBXNativeTarget] the native target to use or `nil` if none is found.
+          # @return [PBXNativeTarget, Nil] the native target to use or `nil` if none is found.
           #
           def native_target_for_spec(spec)
             return native_target if spec.library_specification?
             return test_native_target_from_spec(spec) if spec.test_specification?
-            return app_native_target_from_spec(spec) if spec.app_specification?
+            app_native_target_from_spec(spec) if spec.app_specification?
           end
 
           # @return [Hash{PBXNativeTarget => Specification}] a hash where the keys are the test native targets and the value

lib/cocoapods/target/pod_target.rb

@@ -311,7 +311,7 @@ def test_spec_consumers
       test_specs.map { |test_spec| test_spec.consumer(platform) }
     end
 
-    # @return [Array<Specification::Consumer>] the test specification consumers for
+    # @return [Array<Specification::Consumer>] the app specification consumers for
     #         the target.
     #
     def app_spec_consumers
@@ -394,7 +394,7 @@ def contains_test_specifications?
       !test_specs.empty?
     end
 
-    # @return [Boolean] Whether the target has any tests specifications.
+    # @return [Boolean] Whether the target has any app specifications.
     #
     def contains_app_specifications?
       !app_specs.empty?