tree b381352894bca1bec14268c337c9ea36f22a223d
parent c511ffb3fa4187b68aba998e30e12752639c5d95
author Ben Clayton <bclayton@google.com> 1695653721 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1695653721 +0000

[tools][cts] Substantial roller changes

Avoid collisions by processing 'KEEP' blocks before non-keep. The former cannot be changed by the tool, so if expectations are added before the KEEP block is seen, then we'd end up with a collision.

Simplify the expectation parser. Removes the concept of an 'empty' expectation chunk. This results in the expectation file with double-newlines being folded to a single newline, but simplifies the code a bunch.

Remove tag validation of `expectations.txt`. This had false-positives, as you simply cannot statically know whether two tag sets collide, as proper collision detection requires knowledge of the variants being run. We now just rely on typ's collision detection.

Remove emission of 'SLOW' tests. These are now in a separate expectation file, and will fail validation if emitted into `expectations.txt`.

Change the pattern matching of 'untriaged failures' to be more lenient. This is required to match the new style in the expectations file. Also wrap the comment in a horizontal `###` line.

More aggressively collapse nodes with partially failing children to reduce expectation spam.

Add a bunch more logging and add progress bars for the expensive operations.

Change-Id: Ie14cb89790ed32f0e3f3721be5b573113611edc0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/151921
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>