Use platforms inside Apple rules transitions

README.md

@@ -21,11 +21,8 @@ repository.
 
 ## Quick setup
 
-1. Copy the latest `MODULE.bazel` or `WORKSPACE` snippet from [the releases
+Copy the latest `MODULE.bazel` or `WORKSPACE` snippet from [the releases
 page](https://github.com/bazelbuild/rules_apple/releases).
-2. Copy the
-[`platform_mappings`](https://github.com/bazelbuild/rules_apple/blob/master/platform_mappings)
-file to the root of your repo
 
 ## Examples
 

apple/internal/transition_support.bzl

@@ -44,6 +44,29 @@ _PLATFORM_TYPE_TO_CPUS_FLAG = {
     "watchos": "//command_line_option:watchos_cpus",
 }
 
+# Following map provides and ad-hoc platform mapping
+# It's no longer needed once --apple_platforms is set everywhere and toolchain resolution enabled
+_CPU_TO_PLATFORM = {
+    "darwin_x86_64": "@build_bazel_apple_support//platforms:macos_x86_64",
+    "darwin_arm64": "@build_bazel_apple_support//platforms:macos_arm64",
+    "darwin_arm64e": "@build_bazel_apple_support//platforms:darwin_arm64e",
+    "ios_x86_64": "@build_bazel_apple_support//platforms:ios_x86_64",
+    "ios_arm64": "@build_bazel_apple_support//platforms:ios_arm64",
+    "ios_sim_arm64": "@build_bazel_apple_support//platforms:ios_sim_arm64",
+    "ios_arm64e": "@build_bazel_apple_support//platforms:ios_arm64e",
+    "tvos_sim_arm64": "@build_bazel_apple_support//platforms:tvos_sim_arm64",
+    "tvos_arm64": "@build_bazel_apple_support//platforms:tvos_arm64",
+    "tvos_x86_64": "@build_bazel_apple_support//platforms:tvos_x86_64",
+    "visionos_arm64": "@build_bazel_apple_support//platforms:visionos_arm64",
+    "visionos_sim_arm64": "@build_bazel_apple_support//platforms:visionos_sim_arm64",
+    "visionos_x86_64": "@build_bazel_apple_support//platforms/simulator:visionos_x86_64",
+    "watchos_armv7k": "@build_bazel_apple_support//platforms:watchos_armv7k",
+    "watchos_arm64": "@build_bazel_apple_support//platforms:watchos_arm64",
+    "watchos_device_arm64": "@build_bazel_apple_support//platforms:watchos_arm64",
+    "watchos_arm64_32": "@build_bazel_apple_support//platforms:watchos_arm64_32",
+    "watchos_x86_64": "@build_bazel_apple_support//platforms:watchos_x86_64",
+}
+
 def _platform_specific_cpu_setting_name(platform_type):
     """Returns the name of a platform-specific CPU setting.
 
@@ -217,7 +240,11 @@ def _command_line_options(
     Returns:
         A dictionary of `"//command_line_option"`s defined for the current target.
     """
-
+    cpu = _cpu_string(
+        environment_arch = environment_arch,
+        platform_type = platform_type,
+        settings = settings,
+    )
     output_dictionary = {
         "//command_line_option:apple configuration distinguisher": "applebin_" + platform_type,
         "//command_line_option:apple_platform_type": platform_type,
@@ -226,17 +253,13 @@ def _command_line_options(
         # architecture and environment, therefore we set `environment_arch` when it is available.
         "//command_line_option:apple_split_cpu": environment_arch if environment_arch else "",
         "//command_line_option:compiler": None,
-        "//command_line_option:cpu": _cpu_string(
-            environment_arch = environment_arch,
-            platform_type = platform_type,
-            settings = settings,
-        ),
+        "//command_line_option:cpu": cpu,
         "//command_line_option:crosstool_top": (
             settings["//command_line_option:apple_crosstool_top"]
         ),
         "//command_line_option:fission": [],
         "//command_line_option:grte_top": None,
-        "//command_line_option:platforms": [apple_platforms[0]] if apple_platforms else [],
+        "//command_line_option:platforms": [apple_platforms[0]] if apple_platforms else [_CPU_TO_PLATFORM[cpu]],
         "//command_line_option:ios_minimum_os": _min_os_version_or_none(
             minimum_os_version = minimum_os_version,
             platform = "ios",