kc3-lang/angle

2020-08-15T23:50:59

Update commit ID when the git ref changes. Previously we were only regenerating the commit ID when the .git/HEAD file changed. When working on a branch the HEAD file doesn't change. It points to a ref like refs/heads/master that changes. So we can read back the contents of .git/HEAD using GN's read_file command and then mark the commit id as dirty when the ref changes. Should alleviate some of the shader cache problems. Bug: angleproject:4448 Change-Id: I1c39b12af3455e3620d80bec92a15f9921d9163b Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2358519 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Ian Elliott <ianelliott@google.com> Commit-Queue: Jamie Madill <jmadill@chromium.org>