Automated rollback of commit ca598fb9445627e9734c2900bc6b11430250d453.

*** Reason for rollback ***

breaks guitar tests

*** Original change description ***

Disallow labels of the form ////foo.

RELNOTES: Labels of the form ////foo are disallowed.
PiperOrigin-RevId: 192393660

1 files changed, 2 insertions, 5 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/cmdline/Label.java b/src/main/java/com/google/devtools/build/lib/cmdline/Label.java
index 92969c4111..f271ea6c8b 100644
--- a/src/main/java/com/google/devtools/build/lib/cmdline/Label.java
+++ b/src/main/java/com/google/devtools/build/lib/cmdline/Label.java
@@ -257,14 +257,11 @@ public final class Label
    */
   private static PackageIdentifier validatePackageName(String packageIdentifier, String name)
       throws LabelSyntaxException {
-    if (packageIdentifier.startsWith("/")) {
-      throw new LabelSyntaxException(
-          "package names may not start with '/' (do you have too many '/'?)");
-    }
+    String error = null;
     try {
       return PackageIdentifier.parse(packageIdentifier);
     } catch (LabelSyntaxException e) {
-      String error = e.getMessage();
+      error = e.getMessage();
       error = "invalid package name '" + packageIdentifier + "': " + error;
       // This check is just for a more helpful error message
       // i.e. valid target name, invalid package name, colon-free label form