Allow library podspec to declare Swift Package Manager dependencies

packages/react-native/scripts/cocoapods/spm.rb

@@ -0,0 +1,89 @@
+class SPMManager
+  def initialize()
+     @dependencies_by_pod = {}
+  end
+
+  def dependency(pod_spec, url:, requirement:,  products:)
+    @dependencies_by_pod[pod_spec.name] ||= []
+    @dependencies_by_pod[pod_spec.name] << { url: url, requirement: requirement, products: products}
+  end
+
+  def apply_on_post_install(installer)
+    project = installer.pods_project
+
+    log 'Cleaning old SPM dependencies from Pods project'
+    clean_spm_dependencies_from_target(project, @dependencies_by_pod)
+    log 'Adding SPM dependencies to Pods project'
+    @dependencies_by_pod.each do |pod_name, dependencies|
+      dependencies.each do |spm_spec|
+        log "Adding SPM dependency on product #{spm_spec[:products]}"
+        add_spm_to_target(
+          project,
+          project.targets.find { |t| t.name == pod_name},
+          spm_spec[:url],
+          spm_spec[:requirement],
+          spm_spec[:products]
+        )
+        log " Adding workaround for Swift package not found issue"
+        target = project.targets.find { |t| t.name == pod_name}
+        target.build_configurations.each do |config|
+          target.build_settings(config.name)['SWIFT_INCLUDE_PATHS'] ||= ['$(inherited)']
+          search_path = '${SYMROOT}/${CONFIGURATION}${EFFECTIVE_PLATFORM_NAME}/'
+          unless target.build_settings(config.name)['SWIFT_INCLUDE_PATHS'].include?(search_path)
+            target.build_settings(config.name)['SWIFT_INCLUDE_PATHS'].push(search_path)
+          end
+        end
+      end
+    end
+
+    unless @dependencies_by_pod.empty?
+      log_warning "If you're using Xcode 15 or earlier you might need to close and reopen the Xcode workspace"
+      unless ENV["USE_FRAMEWORKS"] == "dynamic"
+        @dependencies_by_pod.each do |pod_name, dependencies|
+          log_warning "Pod #{pod_name} is using swift package(s) #{dependencies.map{|i| i[:products]}.flatten.uniq.join(", ")} with static linking, this might cause linker errors. Consider using USE_FRAMEOWRKS=dynamic, see https://github.com/facebook/react-native/pull/44627#issuecomment-2123119711 for more information"
+        end
+      end
+    end
+  end
+
+  private
+
+  def log(msg)
+    ::Pod::UI.puts "[SPM] #{msg}"
+  end
+
+  def log_warning(msg)
+    ::Pod::UI.puts "\n\n[SPM] WARNING!!! #{msg}\n\n"
+  end
+
+  def clean_spm_dependencies_from_target(project, new_targets)
+    project.root_object.package_references.delete_if { |pkg| (pkg.class == Xcodeproj::Project::Object::XCRemoteSwiftPackageReference) }
+  end
+
+  def add_spm_to_target(project, target, url, requirement, products)
+    pkg_class = Xcodeproj::Project::Object::XCRemoteSwiftPackageReference
+    ref_class = Xcodeproj::Project::Object::XCSwiftPackageProductDependency
+    pkg = project.root_object.package_references.find { |p| p.class == pkg_class && p.repositoryURL == url }
+    if !pkg
+      pkg = project.new(pkg_class)
+      pkg.repositoryURL = url
+      pkg.requirement = requirement
+      log(" Adding package to workspace: #{pkg.inspect}")
+      project.root_object.package_references << pkg
+    end
+    products.each do |product_name|
+      ref = target.package_product_dependencies.find do |r| 
+        r.class == ref_class && r.package == pkg && r.product_name == product_name 
+      end
+      next if ref
+
+      log(" Adding product dependency #{product_name} to #{target.name}")
+      ref = project.new(ref_class)
+      ref.package = pkg
+      ref.product_name = product_name
+      target.package_product_dependencies << ref
+    end
+  end
+end
+
+SPM = SPMManager.new

packages/react-native/scripts/react_native_pods.rb

@@ -17,6 +17,7 @@
 require_relative './cocoapods/runtime.rb'
 require_relative './cocoapods/helpers.rb'
 require_relative './cocoapods/privacy_manifest_utils.rb'
+require_relative './cocoapods/spm.rb'
 # Importing to expose use_native_modules!
 require_relative './cocoapods/autolinking.rb'
 
@@ -241,6 +242,18 @@ def install_modules_dependencies(spec, new_arch_enabled: NewArchitectureHelper.n
   NewArchitectureHelper.install_modules_dependencies(spec, new_arch_enabled, folly_config[:version])
 end
 
+
+# This function can be used by library developer to declare an SwiftPackageManager dependency.
+#
+# Parameters:
+# - spec: The spec the Swift Package Manager dependency has to be added to
+# - url: The URL of the Swift Package Manager dependency
+# - requirement: The version requirement of the Swift Package Manager dependency (eg. ` {kind: 'upToNextMajorVersion', minimumVersion: '5.9.1'},`)
+# - products: The product/target of the Swift Package Manager dependency (eg. AlamofireDynamic)
+def spm_dependency(spec, url:, requirement:, products:)
+  SPM.dependency(spec, url: url, requirement: requirement, products: products)
+end
+
 # It returns the default flags.
 # deprecated.
 def get_default_flags()
@@ -294,6 +307,7 @@ def react_native_post_install(
   ReactNativePodsUtils.updateOSDeploymentTarget(installer)
   ReactNativePodsUtils.set_dynamic_frameworks_flags(installer)
   ReactNativePodsUtils.add_ndebug_flag_to_pods_in_release(installer)
+  SPM.apply_on_post_install(installer)
 
   if privacy_file_aggregation_enabled
     PrivacyManifestUtils.add_aggregated_privacy_manifest(installer)