tree a710ed2a8de51250d64498fb1c72168fedce8837
parent cb419e6ffd41992a12be064c37d2df9f4f04cf30
author Kelvin Zhang <zhangkelvin@google.com> 1623691479 -0400
committer Treehugger Robot <treehugger-gerrit@google.com> 1626219009 +0000

Add proto field to store xor operation in update manifest

When generating OTA, we pre-compute which blocks inside a BSDIFF
can be represented by XOR operation, and store these blocks in
the merge sequence. When installing OTA, delta_performer
looks at the merge sequence, and convert blocks to specified
COW op type. If a block does not show up in the merge sequence,
it is assumed to be COW_REPLACE type.

Test: th
Bug: 177104308

Change-Id: If04ca9cae036f2d3a365dcf92ba2447f7b08005a