tree 7fafc71bfcb7b8334a5a556774d5a1aaba1a9481
parent 02fe662cd1c2760a40038c258575efe299adddb0
author Kelvin Zhang <zhangkelvin@google.com> 1638397868 -0800
committer Kelvin Zhang <zhangkelvin@google.com> 1638398770 -0800

Move deflate filtering logic outside of DiffGenerator

Currently, puffdiff attempts to filter deflates before performing diff.
This won't work with lz4diff later on, as lz4diff will decompress the
data on disk before sending to puffdiff, making on disk Extents and
deflate BitExtents go out of sync. To solve this problem, move deflate
filtering logic outside of BestDiffGenerator, and make the caller
responsible for passing in the correct bit extents.

Test: th
Change-Id: I2f41d8901170c2e83f06a1b675eb66485da99f49