Become more restrictive around Runfiles#manifestExpander

Previously the contract was pretty liberal and could allow addition of
extra Artifacts. Create a more restrictive interface allowing the bare
minimum- adding empty files to the tree. This makes the contract of
Runfiles#getAllArtifacts() more sound, since arbitrary artifacts can't
be added, and it makes it easier to figure out what implementations of
manifest expansion exist out there.

--
MOS_MIGRATED_REVID=91233821

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/python/PyLibrary.java b/src/main/java/com/google/devtools/build/lib/rules/python/PyLibrary.java
index 89b4fc8c19..5f57c1ff6c 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/python/PyLibrary.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/python/PyLibrary.java
@@ -66,7 +66,7 @@ public abstract class PyLibrary implements RuleConfiguredTargetFactory {
     } else {
       runfilesBuilder.addTransitiveArtifacts(filesToBuild);
     }
-    runfilesBuilder.setManifestExpander(PythonUtils.GET_INIT_PY_FILES);
+    runfilesBuilder.setEmptyFilesSupplier(PythonUtils.GET_INIT_PY_FILES);
     runfilesBuilder.add(ruleContext, PythonRunfilesProvider.TO_RUNFILES);
     runfilesBuilder.addRunfiles(ruleContext, RunfilesProvider.DEFAULT_RUNFILES);