Set the default workspace name to __main__

See https://github.com/bazelbuild/bazel/wiki/Updating-the-runfiles-tree-structure
for more details about this change.

RELNOTES[INC]: Bazel will now default to using __main__ as the workspace name
(instead of "", as previously) if a project does not provide a workspace
name in the WORKSPACE file. The repository's runfiles will appear under
x.runfiles/__main__/.

--
MOS_MIGRATED_REVID=121376094

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRuleClassProvider.java b/src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRuleClassProvider.java
index 986e31c2c2..674a88107e 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRuleClassProvider.java
+++ b/src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRuleClassProvider.java
@@ -253,7 +253,7 @@ public class BazelRuleClassProvider {
         .addBuildInfoFactory(new ObjcBuildInfoFactory())
         .setConfigurationCollectionFactory(new BazelConfigurationCollection())
         .setPrelude("//tools/build_rules:prelude_bazel")
-        .setRunfilesPrefix("")
+        .setRunfilesPrefix("__main__")
         .setToolsRepository(TOOLS_REPOSITORY)
         .setPrerequisiteValidator(new BazelPrerequisiteValidator())
         .setSkylarkAccessibleTopLevels(skylarkBuiltinJavaObects);