tree 2e6a8883dec07c1b825abbfbc07b8a1d2fb37b37
parent c4db97bfa6f24e987c8298f721a6c99f5febb599
author Sen Jiang <senj@google.com> 1456870972 -0800
committer Alex Deymo <deymo@google.com> 1460414374 -0700

Check if zlib is compatible.

Add a --zlib_fingerprint flag in delta_generator to check if the zlib of
source image is compatible, and only enable IMGDIFF operation if it is.

Test: Added unittest to check /etc/zlib_fingerprint
Bug: 27156099

(cherry picked from commit e0d04282910d423ddc950dd38224c001efc41d42)

Change-Id: Ic5dd14abaa4e7b6644bfcb5d73cfc42cc39195c2