Add --incompatible_android_platforms_transition_updates_affected

This is essentially a quick followup to the `diffToAffected` mode of `--experimental_exec_configuration_distinguisher` and intended for use with that mode.

This setting causes the AndroidPlatformsTransition to also update `affected by Starlark transition` with the changed options.

PiperOrigin-RevId: 428868170

Author: twigg

src/main/java/com/google/devtools/build/lib/analysis/starlark/FunctionTransitionUtil.java

@@ -467,7 +467,7 @@ public static String computeOutputDirectoryNameFragment(BuildOptions toOptions)
    * Extend the global build config affectedByStarlarkTransition, by adding any new option names
    * from changedOptions
    */
-  private static void updateAffectedByStarlarkTransition(
+  public static void updateAffectedByStarlarkTransition(
       CoreOptions buildConfigOptions, Set<String> changedOptions) {
     if (changedOptions.isEmpty()) {
       return;

src/main/java/com/google/devtools/build/lib/rules/android/AndroidConfiguration.java

@@ -966,6 +966,17 @@ public static class Options extends FragmentOptions {
                 + " This will make the build nondeterministic.")
     public boolean includeProguardLocationReferences;
 
+    @Option(
+        name = "incompatible_android_platforms_transition_updated_affected",
+        defaultValue = "false",
+        documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
+        effectTags = OptionEffectTag.LOADING_AND_ANALYSIS,
+        metadataTags = {OptionMetadataTag.INCOMPATIBLE_CHANGE},
+        help =
+            "If set to true, the AndroidPlatformsTransition will also update `affected by Starlark"
+                + " transition` with changed options to avoid potential action conflicts.")
+    public boolean androidPlatformsTransitionsUpdateAffected;
+
     @Override
     public FragmentOptions getHost() {
       Options host = (Options) super.getHost();
@@ -974,6 +985,7 @@ public FragmentOptions getHost() {
       host.sdk = sdk;
       host.fatApkCpus = ImmutableList.of(); // Fat APK archs don't apply to the host.
       host.incompatibleUseToolchainResolution = incompatibleUseToolchainResolution;
+      host.androidPlatformsTransitionsUpdateAffected = androidPlatformsTransitionsUpdateAffected;
 
       host.desugarJava8 = desugarJava8;
       host.desugarJava8Libs = desugarJava8Libs;

src/main/java/com/google/devtools/build/lib/rules/android/AndroidPlatformsTransition.java

@@ -18,10 +18,12 @@
 import com.google.devtools.build.lib.analysis.PlatformOptions;
 import com.google.devtools.build.lib.analysis.config.BuildOptions;
 import com.google.devtools.build.lib.analysis.config.BuildOptionsView;
+import com.google.devtools.build.lib.analysis.config.CoreOptions;
 import com.google.devtools.build.lib.analysis.config.FragmentOptions;
 import com.google.devtools.build.lib.analysis.config.transitions.PatchTransition;
 import com.google.devtools.build.lib.analysis.config.transitions.StarlarkExposedRuleTransitionFactory;
 import com.google.devtools.build.lib.analysis.config.transitions.TransitionFactory;
+import com.google.devtools.build.lib.analysis.starlark.FunctionTransitionUtil;
 import com.google.devtools.build.lib.events.EventHandler;
 import com.google.devtools.build.lib.packages.RuleTransitionData;
 import com.google.devtools.build.lib.rules.cpp.CppOptions;
@@ -51,7 +53,10 @@ public static TransitionFactory<RuleTransitionData> create() {
   @Override
   public ImmutableSet<Class<? extends FragmentOptions>> requiresOptionFragments() {
     return ImmutableSet.of(
-        AndroidConfiguration.Options.class, PlatformOptions.class, CppOptions.class);
+        AndroidConfiguration.Options.class,
+        PlatformOptions.class,
+        CoreOptions.class,
+        CppOptions.class);
   }
 
   @Override
@@ -74,6 +79,22 @@ public BuildOptions patch(BuildOptionsView options, EventHandler eventHandler) {
       newOptions.get(CppOptions.class).enableCcToolchainResolution = true;
     }
 
+    if (androidOptions.androidPlatformsTransitionsUpdateAffected) {
+      ImmutableSet.Builder<String> affected = ImmutableSet.builder();
+      if (!options
+          .get(PlatformOptions.class)
+          .platforms
+          .equals(newOptions.get(PlatformOptions.class).platforms)) {
+        affected.add("//command_line_option:platforms");
+      }
+      if (options.get(CppOptions.class).enableCcToolchainResolution
+          != newOptions.get(CppOptions.class).enableCcToolchainResolution) {
+        affected.add("//command_line_option:incompatible_enable_cc_toolchain_resolution");
+      }
+      FunctionTransitionUtil.updateAffectedByStarlarkTransition(
+          newOptions.get(CoreOptions.class), affected.build());
+    }
+
     return newOptions.underlying();
   }
 

src/main/java/com/google/devtools/build/lib/rules/android/BUILD

@@ -65,6 +65,7 @@ java_library(
         "//src/main/java/com/google/devtools/build/lib/analysis:required_config_fragments_provider",
         "//src/main/java/com/google/devtools/build/lib/analysis:resolved_toolchain_context",
         "//src/main/java/com/google/devtools/build/lib/analysis:rule_definition_environment",
+        "//src/main/java/com/google/devtools/build/lib/analysis:starlark/function_transition_util",
         "//src/main/java/com/google/devtools/build/lib/analysis:starlark/starlark_api_provider",
         "//src/main/java/com/google/devtools/build/lib/analysis:starlark/starlark_error_reporter",
         "//src/main/java/com/google/devtools/build/lib/analysis:test/execution_info",