tree 062d4e401f7fef81b258d7f4ada5959decfe1a11
parent 1bf932e7b49d077e438e48b88d58a0576898c5f9
author Ben Clayton <bclayton@google.com> 1634674035 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1634674035 +0000

dawn_node: Only rebuild CTS if something has changed

https://github.com/gpuweb/cts/pull/788 significantly improves the performance of incremental builds, but it can still take around 2 seconds to do that incremental build.

Have the run-cts tool scan the CTS source tree for the most recent modification, and only rebuild if the timestamp is more recent than the last build time.

Significantly reduces startup overhead of the tool.

Change-Id: I7e9227127c02e6d4dc8875a577178956bf5e2481
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/66822
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>