commit c5c078cb60b2d11c8c17f993d9b10582ee984d5f
author felly <felly@google.com> Wed Jul 31 12:05:24 2019 -0700
committer Copybara-Service <copybara-worker@google.com> Wed Jul 31 12:06:21 2019 -0700
tree 23fb8059461e7ddb0b6b5725622ec5cec4756a4c
parent d5f514baace66b7b4a28914896ab0f18daadb827

Introduce top-down action caching in Bazel. The top-down cache may be provided by a Bazel module.

The cache works by first computing a _transitive_ cache key for the action, known as a sketch. It composes the action keys for all dependent actions and all transitive source file digest hashes.

This feature is not currently wired up for use - consider it extremely experimental at this point.

RELNOTES: None
PiperOrigin-RevId: 260973078

src/main/java/com/google/devtools/build/lib/buildtool/ExecutionTool.java

diff --git a/src/main/java/com/google/devtools/build/lib/buildtool/ExecutionTool.java b/src/main/java/com/google/devtools/build/lib/buildtool/ExecutionTool.java
index aa70340..c8d0ba8 100644
--- a/src/main/java/com/google/devtools/build/lib/buildtool/ExecutionTool.java
+++ b/src/main/java/com/google/devtools/build/lib/buildtool/ExecutionTool.java
@@ -628,6 +628,7 @@
                 .setEnabled(options.useActionCache)
                 .setVerboseExplanations(options.verboseExplanations)
                 .build()),
+        env.getTopDownActionCache(),
         request.getPackageCacheOptions().checkOutputFiles
             ? modifiedOutputFiles
             : ModifiedFileSet.NOTHING_MODIFIED,