feat: Support for SwiftSettings: swiftLanguageMode, enableUpcomingFeature, enableExperimentalFeature (#1423)

I'm trying to use some of the new GRPC and Protobuf package versions and
some of them have adopted upcoming and experimental features as well as
the Swift 6 language mode. These SwiftSettings are ignored in the
current master. This PR adds support for these features to the
repository rule.

## Test Plan

SwiftProtobuf uses the experimental StrictConcurrency feature and the
upcoming ExistentialAny feature, so it was a good test case for this
feature. This is the generated BUILD file with this branch in the
swift_protobuf example.

```python
logan@Logans-MacBook-Pro swift_protobuf_example % bazel query --output=build 
...
swift_library(
  name = "SwiftProtobuf.rspm",
  visibility = ["@swiftpkg_swift_protobuf//:__subpackages__"],
  tags = ["manual"],
  features = ["swift.experimental.StrictConcurrency=complete", "swift.upcoming.ExistentialAny"],
  data = ["@swiftpkg_swift_protobuf//:SwiftProtobuf.rspm_resource_bundle"],
  copts = ["-DSWIFT_PACKAGE"],
  module_name = "SwiftProtobuf",
  srcs = [...],
  always_include_developer_search_paths = True,
  alwayslink = True,
)
...
```

---------

Co-authored-by: Chuck Grindel <chuck@revealtech.ai>

Author: AttilaTheFun

.bazelrc

@@ -1,7 +1,7 @@
 # To update these lines, execute 
 # `bazel run @rules_bazel_integration_test//tools:update_deleted_packages`
-build --deleted_packages=bzlmod/workspace,bzlmod/workspace/Sources/MyExecutable,bzlmod/workspace/Sources/MyLibrary,bzlmod/workspace/Tests/MyLibraryTests,examples/firebase_example,examples/firebase_example/abtesting,examples/firebase_example/abtesting/SharedApp,examples/firebase_example/analytics/AnalyticsExample,examples/firebase_example/appdistribution,examples/firebase_example/appdistribution/AppDistributionExample,examples/firebase_example/appdistribution/AppDistributionTests,examples/firebase_example/crashlytics,examples/google_maps_example,examples/google_maps_example/GoogleMapsExample,examples/google_maps_example/third-party/google-maps-ios-sdk,examples/grpc_example,examples/grpc_example/compilers,examples/grpc_example/protos/echo_service,examples/grpc_example/protos/echo_service/requests,examples/grpc_example/protos/echo_service/responses,examples/grpc_example/sources/client,examples/grpc_example/sources/server,examples/grpc_example/sources/test,examples/interesting_deps,examples/interesting_deps/ios,examples/ios_sim,examples/ios_sim/Sources/Foo,examples/ios_sim/Tests/FooTests,examples/lottie_ios_example,examples/lottie_ios_example/LottieExample,examples/lottie_ios_example/LottieExampleUITest,examples/messagekit_example,examples/messagekit_example/Sources/Models,examples/messagekit_example/Tests/ModelTests,examples/nimble_example,examples/nimble_example/Sources/NimbleExample,examples/objc_code,examples/objc_code/Tests/TrustKitTests,examples/phone_number_kit,examples/phone_number_kit/Tests/PhoneNumberKitTests,examples/pkg_manifest_minimal,examples/pkg_manifest_minimal/Sources/MyExecutable,examples/pkg_manifest_minimal/Sources/MyLibrary,examples/pkg_manifest_minimal/Tests/MyLibraryTests,examples/pkg_manifest_minimal/third_party,examples/resources_example,examples/resources_example/Sources/MyApp,examples/resources_example/Tests/MyAppTests,examples/resources_example/Tests/MyAppUITests,examples/resources_example/third_party,examples/shake_ios_example,examples/shake_ios_example/ShakeIOSExample,examples/shake_ios_example/ShakeIOSExampleUITests,examples/skip_local_transitive_dependencies_example,examples/snapkit_example,examples/soto_example,examples/soto_example/Tests/SotoTests,examples/stripe_example,examples/stripe_example/PaymentSheet/PaymentSheetExample,examples/stripe_example/PaymentSheet/PaymentSheetUITest,examples/swift_package_registry_example,examples/symlink_example,examples/symlink_example/Sources/ImportFramework,examples/symlink_example/Tests/ImportFrameworkTests,examples/tca_example,examples/tca_example/Sources,examples/tca_example/Tests,examples/vapor_example,examples/vapor_example/Sources/App,examples/vapor_example/Sources/Run,examples/vapor_example/Tests/AppTests,examples/vapor_example/swift,examples/xcmetrics_example
-query --deleted_packages=bzlmod/workspace,bzlmod/workspace/Sources/MyExecutable,bzlmod/workspace/Sources/MyLibrary,bzlmod/workspace/Tests/MyLibraryTests,examples/firebase_example,examples/firebase_example/abtesting,examples/firebase_example/abtesting/SharedApp,examples/firebase_example/analytics/AnalyticsExample,examples/firebase_example/appdistribution,examples/firebase_example/appdistribution/AppDistributionExample,examples/firebase_example/appdistribution/AppDistributionTests,examples/firebase_example/crashlytics,examples/google_maps_example,examples/google_maps_example/GoogleMapsExample,examples/google_maps_example/third-party/google-maps-ios-sdk,examples/grpc_example,examples/grpc_example/compilers,examples/grpc_example/protos/echo_service,examples/grpc_example/protos/echo_service/requests,examples/grpc_example/protos/echo_service/responses,examples/grpc_example/sources/client,examples/grpc_example/sources/server,examples/grpc_example/sources/test,examples/interesting_deps,examples/interesting_deps/ios,examples/ios_sim,examples/ios_sim/Sources/Foo,examples/ios_sim/Tests/FooTests,examples/lottie_ios_example,examples/lottie_ios_example/LottieExample,examples/lottie_ios_example/LottieExampleUITest,examples/messagekit_example,examples/messagekit_example/Sources/Models,examples/messagekit_example/Tests/ModelTests,examples/nimble_example,examples/nimble_example/Sources/NimbleExample,examples/objc_code,examples/objc_code/Tests/TrustKitTests,examples/phone_number_kit,examples/phone_number_kit/Tests/PhoneNumberKitTests,examples/pkg_manifest_minimal,examples/pkg_manifest_minimal/Sources/MyExecutable,examples/pkg_manifest_minimal/Sources/MyLibrary,examples/pkg_manifest_minimal/Tests/MyLibraryTests,examples/pkg_manifest_minimal/third_party,examples/resources_example,examples/resources_example/Sources/MyApp,examples/resources_example/Tests/MyAppTests,examples/resources_example/Tests/MyAppUITests,examples/resources_example/third_party,examples/shake_ios_example,examples/shake_ios_example/ShakeIOSExample,examples/shake_ios_example/ShakeIOSExampleUITests,examples/skip_local_transitive_dependencies_example,examples/snapkit_example,examples/soto_example,examples/soto_example/Tests/SotoTests,examples/stripe_example,examples/stripe_example/PaymentSheet/PaymentSheetExample,examples/stripe_example/PaymentSheet/PaymentSheetUITest,examples/swift_package_registry_example,examples/symlink_example,examples/symlink_example/Sources/ImportFramework,examples/symlink_example/Tests/ImportFrameworkTests,examples/tca_example,examples/tca_example/Sources,examples/tca_example/Tests,examples/vapor_example,examples/vapor_example/Sources/App,examples/vapor_example/Sources/Run,examples/vapor_example/Tests/AppTests,examples/vapor_example/swift,examples/xcmetrics_example
+build --deleted_packages=bzlmod/workspace,bzlmod/workspace/Sources/MyExecutable,bzlmod/workspace/Sources/MyLibrary,bzlmod/workspace/Tests/MyLibraryTests,examples/firebase_example,examples/firebase_example/abtesting,examples/firebase_example/abtesting/SharedApp,examples/firebase_example/analytics/AnalyticsExample,examples/firebase_example/appdistribution,examples/firebase_example/appdistribution/AppDistributionExample,examples/firebase_example/appdistribution/AppDistributionTests,examples/firebase_example/crashlytics,examples/google_maps_example,examples/google_maps_example/GoogleMapsExample,examples/google_maps_example/third-party/google-maps-ios-sdk,examples/grpc_example,examples/grpc_example/compilers,examples/grpc_example/protos/echo_service,examples/grpc_example/protos/echo_service/requests,examples/grpc_example/protos/echo_service/responses,examples/grpc_example/sources/client,examples/grpc_example/sources/common,examples/grpc_example/sources/server,examples/interesting_deps,examples/interesting_deps/ios,examples/ios_sim,examples/ios_sim/Sources/Foo,examples/ios_sim/Tests/FooTests,examples/lottie_ios_example,examples/lottie_ios_example/LottieExample,examples/lottie_ios_example/LottieExampleUITest,examples/messagekit_example,examples/messagekit_example/Sources/Models,examples/messagekit_example/Tests/ModelTests,examples/nimble_example,examples/nimble_example/Sources/NimbleExample,examples/objc_code,examples/objc_code/Tests/TrustKitTests,examples/phone_number_kit,examples/phone_number_kit/Tests/PhoneNumberKitTests,examples/pkg_manifest_minimal,examples/pkg_manifest_minimal/Sources/MyExecutable,examples/pkg_manifest_minimal/Sources/MyLibrary,examples/pkg_manifest_minimal/Tests/MyLibraryTests,examples/pkg_manifest_minimal/third_party,examples/resources_example,examples/resources_example/Sources/MyApp,examples/resources_example/Tests/MyAppTests,examples/resources_example/Tests/MyAppUITests,examples/resources_example/third_party,examples/shake_ios_example,examples/shake_ios_example/ShakeIOSExample,examples/shake_ios_example/ShakeIOSExampleUITests,examples/skip_local_transitive_dependencies_example,examples/snapkit_example,examples/soto_example,examples/soto_example/Tests/SotoTests,examples/stripe_example,examples/stripe_example/PaymentSheet/PaymentSheetExample,examples/stripe_example/PaymentSheet/PaymentSheetUITest,examples/swift_package_registry_example,examples/symlink_example,examples/symlink_example/Sources/ImportFramework,examples/symlink_example/Tests/ImportFrameworkTests,examples/tca_example,examples/tca_example/Sources,examples/tca_example/Tests,examples/vapor_example,examples/vapor_example/Sources/App,examples/vapor_example/Sources/Run,examples/vapor_example/Tests/AppTests,examples/vapor_example/swift,examples/xcmetrics_example
+query --deleted_packages=bzlmod/workspace,bzlmod/workspace/Sources/MyExecutable,bzlmod/workspace/Sources/MyLibrary,bzlmod/workspace/Tests/MyLibraryTests,examples/firebase_example,examples/firebase_example/abtesting,examples/firebase_example/abtesting/SharedApp,examples/firebase_example/analytics/AnalyticsExample,examples/firebase_example/appdistribution,examples/firebase_example/appdistribution/AppDistributionExample,examples/firebase_example/appdistribution/AppDistributionTests,examples/firebase_example/crashlytics,examples/google_maps_example,examples/google_maps_example/GoogleMapsExample,examples/google_maps_example/third-party/google-maps-ios-sdk,examples/grpc_example,examples/grpc_example/compilers,examples/grpc_example/protos/echo_service,examples/grpc_example/protos/echo_service/requests,examples/grpc_example/protos/echo_service/responses,examples/grpc_example/sources/client,examples/grpc_example/sources/common,examples/grpc_example/sources/server,examples/interesting_deps,examples/interesting_deps/ios,examples/ios_sim,examples/ios_sim/Sources/Foo,examples/ios_sim/Tests/FooTests,examples/lottie_ios_example,examples/lottie_ios_example/LottieExample,examples/lottie_ios_example/LottieExampleUITest,examples/messagekit_example,examples/messagekit_example/Sources/Models,examples/messagekit_example/Tests/ModelTests,examples/nimble_example,examples/nimble_example/Sources/NimbleExample,examples/objc_code,examples/objc_code/Tests/TrustKitTests,examples/phone_number_kit,examples/phone_number_kit/Tests/PhoneNumberKitTests,examples/pkg_manifest_minimal,examples/pkg_manifest_minimal/Sources/MyExecutable,examples/pkg_manifest_minimal/Sources/MyLibrary,examples/pkg_manifest_minimal/Tests/MyLibraryTests,examples/pkg_manifest_minimal/third_party,examples/resources_example,examples/resources_example/Sources/MyApp,examples/resources_example/Tests/MyAppTests,examples/resources_example/Tests/MyAppUITests,examples/resources_example/third_party,examples/shake_ios_example,examples/shake_ios_example/ShakeIOSExample,examples/shake_ios_example/ShakeIOSExampleUITests,examples/skip_local_transitive_dependencies_example,examples/snapkit_example,examples/soto_example,examples/soto_example/Tests/SotoTests,examples/stripe_example,examples/stripe_example/PaymentSheet/PaymentSheetExample,examples/stripe_example/PaymentSheet/PaymentSheetUITest,examples/swift_package_registry_example,examples/symlink_example,examples/symlink_example/Sources/ImportFramework,examples/symlink_example/Tests/ImportFrameworkTests,examples/tca_example,examples/tca_example/Sources,examples/tca_example/Tests,examples/vapor_example,examples/vapor_example/Sources/App,examples/vapor_example/Sources/Run,examples/vapor_example/Tests/AppTests,examples/vapor_example/swift,examples/xcmetrics_example
 
 # Import Shared settings
 import %workspace%/shared.bazelrc

.github/actions/set_up_ubuntu/action.yml

@@ -10,7 +10,7 @@ inputs:
     required: true
   swift_release_tag:
     description: The Swift release tag.
-    default: "swift-5.9.1-RELEASE"
+    default: "swift-6.0.3-RELEASE"
 
 runs:
   using: composite

examples/grpc_example/.bazelrc

@@ -10,3 +10,7 @@ try-import %workspace%/../../local.bazelrc
 # GRPC requires C++17 or later.
 build --cxxopt='-std=c++17'
 build --host_cxxopt='-std=c++17'
+
+# Force building for macOS 15.0:
+build --macos_minimum_os=15.0
+build --host_macos_minimum_os=15.0

examples/grpc_example/MODULE.bazel

@@ -49,5 +49,7 @@ use_repo(
     "swift_deps_info",
     "swift_package",
     "swiftpkg_grpc_swift",
+    "swiftpkg_grpc_swift_nio_transport",
+    "swiftpkg_grpc_swift_protobuf",
     "swiftpkg_swift_protobuf",
 )

examples/grpc_example/Package.resolved

@@ -5,8 +5,9 @@ import PackageDescription
 let package = Package(
     name: "grpc_example",
     dependencies: [
-        // These are the versions used by rules_swift 1.18.0
-        .package(url: "https://github.com/grpc/grpc-swift.git", exact: "1.16.0"),
-        .package(url: "https://github.com/apple/swift-protobuf.git", exact: "1.20.2"),
+        .package(url: "https://github.com/grpc/grpc-swift.git", exact: "2.1.0"),
+        .package(url: "https://github.com/grpc/grpc-swift-protobuf.git", exact: "1.1.0"),
+        .package(url: "https://github.com/grpc/grpc-swift-nio-transport.git", exact: "1.0.1"),
+        .package(url: "https://github.com/apple/swift-protobuf.git", from: "1.28.1"),
     ]
 )

examples/grpc_example/Package.swift

@@ -1,4 +1,3 @@
-load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
 load(
     "@build_bazel_rules_swift//proto:proto.bzl",
     "swift_proto_compiler",
@@ -7,7 +6,6 @@ load(
     "//compilers:swift_proto_compiler_macros.bzl",
     "GRPC_VARIANT_CLIENT",
     "GRPC_VARIANT_SERVER",
-    "GRPC_VARIANT_TEST_CLIENT",
     "PROTO_PLUGIN_OPTIONS",
     "PROTO_PLUGIN_OPTION_ALLOWLIST",
     "make_grpc_swift_proto_compiler",
@@ -40,18 +38,3 @@ make_grpc_swift_proto_compiler(
     name = "swift_client_proto",
     variants = [GRPC_VARIANT_CLIENT],
 )
-
-make_grpc_swift_proto_compiler(
-    name = "swift_test_client_proto",
-    variants = [GRPC_VARIANT_TEST_CLIENT],
-)
-
-bzl_library(
-    name = "swift_proto_compiler_macros",
-    srcs = ["swift_proto_compiler_macros.bzl"],
-    visibility = ["//visibility:public"],
-    deps = [
-        "@bazel_skylib//lib:dicts",
-        "@build_bazel_rules_swift//swift",
-    ],
-)

examples/grpc_example/compilers/BUILD.bazel

@@ -36,11 +36,9 @@ PROTO_PLUGIN_OPTIONS = {
 }
 GRPC_VARIANT_SERVER = "Server"
 GRPC_VARIANT_CLIENT = "Client"
-GRPC_VARIANT_TEST_CLIENT = "TestClient"
 GRPC_VARIANTS = [
     GRPC_VARIANT_SERVER,
     GRPC_VARIANT_CLIENT,
-    GRPC_VARIANT_TEST_CLIENT,
 ]
 GRPC_PLUGIN_OPTION_ALLOWLIST = PROTO_PLUGIN_OPTION_ALLOWLIST + [
     "KeepMethodCasing",
@@ -72,14 +70,15 @@ def make_grpc_swift_proto_compiler(
     swift_proto_compiler(
         name = name,
         protoc = "@protobuf//:protoc",
-        plugin = "@swiftpkg_grpc_swift//:protoc-gen-grpc-swift",
+        plugin = "@swiftpkg_grpc_swift_protobuf//:protoc-gen-grpc-swift",
         plugin_name = name.removesuffix("_proto"),
         plugin_option_allowlist = GRPC_PLUGIN_OPTION_ALLOWLIST,
         plugin_options = merged_plugin_options,
         suffixes = [".grpc.swift"],
         deps = [
             "@swiftpkg_swift_protobuf//:SwiftProtobuf",
-            "@swiftpkg_grpc_swift//:GRPC",
+            "@swiftpkg_grpc_swift_protobuf//:GRPCProtobuf",
+            "@swiftpkg_grpc_swift//:GRPCCore",
         ],
         visibility = ["//visibility:public"],
     )