Turn on --experimental_starlark_config_transitions
RELNOTES: Turn on --experimental_starlark_config_transitions by default for starlark transitions (see https://docs.bazel.build/versions/master/skylark/config.html#user-defined-transitions for more info)
SKIP_CI=blaze is borked
PiperOrigin-RevId: 250776283
diff --git a/src/main/java/com/google/devtools/build/lib/packages/StarlarkSemanticsOptions.java b/src/main/java/com/google/devtools/build/lib/packages/StarlarkSemanticsOptions.java
index 56b6401..cce3946 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/StarlarkSemanticsOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/StarlarkSemanticsOptions.java
@@ -140,11 +140,9 @@
+ "debugging.")
public boolean experimentalPlatformsApi;
- // TODO(cparsons): Resolve and finalize the transition() API. The transition implementation
- // function should accept two mandatory parameters, 'settings' and 'attr'.
@Option(
name = "experimental_starlark_config_transitions",
- defaultValue = "false",
+ defaultValue = "true",
documentationCategory = OptionDocumentationCategory.STARLARK_SEMANTICS,
effectTags = {OptionEffectTag.LOADING_AND_ANALYSIS},
metadataTags = {OptionMetadataTag.EXPERIMENTAL},
diff --git a/src/main/java/com/google/devtools/build/lib/syntax/StarlarkSemantics.java b/src/main/java/com/google/devtools/build/lib/syntax/StarlarkSemantics.java
index 52c703a..8412a51 100644
--- a/src/main/java/com/google/devtools/build/lib/syntax/StarlarkSemantics.java
+++ b/src/main/java/com/google/devtools/build/lib/syntax/StarlarkSemantics.java
@@ -225,7 +225,7 @@
.experimentalGoogleLegacyApi(false)
.experimentalJavaCommonCreateProviderEnabledPackages(ImmutableList.of())
.experimentalPlatformsApi(false)
- .experimentalStarlarkConfigTransitions(false)
+ .experimentalStarlarkConfigTransitions(true)
.experimentalStarlarkUnusedInputsList(false)
.incompatibleBzlDisallowLoadAfterStatement(true)
.incompatibleDepsetIsNotIterable(false)
