Uses a per-partition fingerprint for building images and avb_salt.
This causes the output image files of a merged build to be identical
to the image files of the input partial builds, for each images in
PARTITIONS_WITH_CARE_MAP.
Test: python -m unittest test_common
Test: `m dist`; `unzip out/dist/target_files.zip IMAGES/\*`;
`zip -d out/dist/target_files.zip IMAGES/\*`
`add_img_to_target_files -a out/dist/target_files.zip`.
Verify that the rebuilt images are identical to the deleted ones.
Test: Build a merged target (using merge_target_files.py). Verify that
the partial target-files.zip IMAGES are identical to the merged
target-files.zip IMAGES for PARTITIONS_WITH_CARE_MAP images.
Bug: 150405807
Change-Id: I5fdf5783c1aff9c14cf5408090389b1f65b69ca6
diff --git a/tools/releasetools/add_img_to_target_files.py b/tools/releasetools/add_img_to_target_files.py
index 8249915..cc05c64 100755
--- a/tools/releasetools/add_img_to_target_files.py
+++ b/tools/releasetools/add_img_to_target_files.py
@@ -338,7 +338,7 @@
# Use repeatable ext4 FS UUID and hash_seed UUID (based on partition name and
# build fingerprint).
build_info = common.BuildInfo(info_dict)
- uuid_seed = what + "-" + build_info.fingerprint
+ uuid_seed = what + "-" + build_info.GetPartitionFingerprint(what)
image_props["uuid"] = str(uuid.uuid5(uuid.NAMESPACE_URL, uuid_seed))
hash_seed = "hash_seed-" + uuid_seed
image_props["hash_seed"] = str(uuid.uuid5(uuid.NAMESPACE_URL, hash_seed))