rebaseline_server: cache results in long-running ImageDiffDB instance
Rather than rebuilding the ImageDiffDB from scratch every time we update expected/actual results, keep the same ImageDiffDB instance around and add image pairs to it.
This makes updating results within a long-running server.py *much* faster, and tests out an idea I'm ruminating in https://goto.google.com/LongRunningImageDiffDBServer : we could run an ImageDiffDB server that developers could connect to from their locally running rebaseline_server instances, for much faster launch times.
BUG=skia:2414
NOTRY=True
R=rmistry@google.com
Author: epoger@google.com
Review URL: https://codereview.chromium.org/379563005
4 files changed