Make globs work in remote repositories.

This involved quite a few changes, mainly changing a bunch of places where we refer to packages by a PathFragment to PackageIdentifier. 

The only wart is the code in PathPackageLocator: ideally, it would just call into PackageLookupFunction. Unfortunately, it is (through globbing and Parser.include) called from within a Skyframe function, and we don't want to have two eval() calls going on at the same time, so we cannot use that.

There is a potential correctness issue there: PathPackageLocator now assumes where external repositories are put and assumes that they are there when it gets control, but my understanding is that the associated RepositoryValue is always evaluated before, so it works out okay.

--
MOS_MIGRATED_REVID=97751539

1 files changed, 2 insertions, 2 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/GraphBackedRecursivePackageProvider.java b/src/main/java/com/google/devtools/build/lib/skyframe/GraphBackedRecursivePackageProvider.java
index c4e8c490af..c029a1ddc1 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/GraphBackedRecursivePackageProvider.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/GraphBackedRecursivePackageProvider.java
@@ -79,8 +79,8 @@ public final class GraphBackedRecursivePackageProvider implements RecursivePacka
   }
 
   @Override
-  public boolean isPackage(EventHandler eventHandler, String packageName) {
-    SkyKey packageLookupKey = PackageLookupValue.key(new PathFragment(packageName));
+  public boolean isPackage(EventHandler eventHandler, PackageIdentifier packageName) {
+    SkyKey packageLookupKey = PackageLookupValue.key(packageName);
     if (!graph.exists(packageLookupKey)) {
       // If the package lookup key does not exist in the graph, then it must not correspond to any
       // package, because the SkyQuery environment has already loaded the universe.