commit c31c8c9c54958b7ac3ac568aa5564ae7d7f4a718
author felly <felly@google.com> Wed Aug 29 15:07:59 2018 -0700
committer Copybara-Service <copybara-piper@google.com> Wed Aug 29 15:09:45 2018 -0700
tree 3fb476e43cacb3d553753cbf52e41c8fcdb8125d
parent 12e27f7b016acf1538b3c14c11bf828ca499fcc0

Expose a method for fingerprinting a Runfiles instances.

PiperOrigin-RevId: 210798673

src/main/java/com/google/devtools/build/lib/analysis/Runfiles.java

diff --git a/src/main/java/com/google/devtools/build/lib/analysis/Runfiles.java b/src/main/java/com/google/devtools/build/lib/analysis/Runfiles.java
index c189e13..3c2811e 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/Runfiles.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/Runfiles.java
@@ -38,6 +38,7 @@
 import com.google.devtools.build.lib.skylarkbuildapi.RunfilesApi;
 import com.google.devtools.build.lib.skylarkinterface.SkylarkPrinter;
 import com.google.devtools.build.lib.skylarkinterface.SkylarkValue;
+import com.google.devtools.build.lib.util.Fingerprint;
 import com.google.devtools.build.lib.vfs.PathFragment;
 import java.io.BufferedReader;
 import java.io.IOException;
@@ -1161,4 +1162,29 @@
     builder.merge((Runfiles) other);
     return builder.build();
   }
+
+  /**
+   * Fingerprint this {@link Runfiles} tree.
+   */
+  public void fingerprint(Fingerprint fp) {
+    fp.addBoolean(getLegacyExternalRunfiles());
+    fp.addPath(getSuffix());
+    Map<PathFragment, Artifact> symlinks = getSymlinksAsMap(null);
+    fp.addInt(symlinks.size());
+    for (Map.Entry<PathFragment, Artifact> symlink : symlinks.entrySet()) {
+      fp.addPath(symlink.getKey());
+      fp.addPath(symlink.getValue().getExecPath());
+    }
+    Map<PathFragment, Artifact> rootSymlinks = getRootSymlinksAsMap(null);
+    fp.addInt(rootSymlinks.size());
+    for (Map.Entry<PathFragment, Artifact> rootSymlink : rootSymlinks.entrySet()) {
+      fp.addPath(rootSymlink.getKey());
+      fp.addPath(rootSymlink.getValue().getExecPath());
+    }
+
+    for (Artifact artifact : getArtifacts()) {
+      fp.addPath(artifact.getRootRelativePath());
+      fp.addPath(artifact.getExecPath());
+    }
+  }
 }