Introduce Root class.

This class represents a root (such as a package path or an output root) used for file lookups and artifacts. It is meant to be as opaque as possible in order to hide the user's environment from sky keys and sky functions.

Roots are used by RootedPaths and ArtifactRoots.

This CL attempts to make the minimum number of modifications necessary to change RootedPath and ArtifactRoot to use these fields. Deprecated methods and invasive accessors are permitted to minimise the risk of any observable changes.

RELNOTES: None
PiperOrigin-RevId: 182271759

1 files changed, 2 insertions, 2 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/RecursiveFilesystemTraversalValue.java b/src/main/java/com/google/devtools/build/lib/skyframe/RecursiveFilesystemTraversalValue.java
index c37dfc41c1..d3bbc160f7 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/RecursiveFilesystemTraversalValue.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/RecursiveFilesystemTraversalValue.java
@@ -23,8 +23,8 @@ import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
 import com.google.devtools.build.lib.collect.nestedset.Order;
 import com.google.devtools.build.lib.skyframe.RecursiveFilesystemTraversalFunction.DanglingSymlinkException;
 import com.google.devtools.build.lib.skyframe.RecursiveFilesystemTraversalFunction.FileType;
-import com.google.devtools.build.lib.vfs.Path;
 import com.google.devtools.build.lib.vfs.PathFragment;
+import com.google.devtools.build.lib.vfs.Root;
 import com.google.devtools.build.lib.vfs.RootedPath;
 import com.google.devtools.build.skyframe.LegacySkyKey;
 import com.google.devtools.build.skyframe.SkyKey;
@@ -167,7 +167,7 @@ public final class RecursiveFilesystemTraversalValue implements SkyValue {
      * <p>This method can be used when a package is found out to be under a different root path than
      * originally assumed.
      */
-    TraversalRequest forChangedRootPath(Path newRoot) {
+    TraversalRequest forChangedRootPath(Root newRoot) {
       return duplicate(RootedPath.toRootedPath(newRoot, path.getRelativePath()),
           skipTestingForSubpackage);
     }