tree adc6e2b544b83a71850761cbc443b7ea7a2d3c45
parent 2d381258bc7fc5e024dd01964be3ffa69976e29c
author Kevin Lubick <kjlubick@google.com> 1614268214 -0500
committer Kevin Lubick <kjlubick@google.com> 1614284151 +0000

[gold] Change CommitID to be a string.

This helps us support Chrome OS (and could decouple
us from git). This also allows us to assign variable tile
widths across instances and time if we want by adding
TileID to the Commits table.

While I was introducing this, I changed diffcalculator and
diff/worker to use a number of dense commits instead of a
number of tiles. Otherwise, I would have to do that first
in a completely different way and then redo it here.

Suggested review order:
 1) schema/tables.go
 2) databuilder.go
 3) kitchensink.go
 4) worker_test.go
 5) worker.go
 6) everything else.

Bug: skia:11367
Change-Id: Iaa4737bca1e1e153e4c7d5fa684ee65cc2f51590
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/375659
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>