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Estimate COW image size and put the estimation in OTA metadata. Then VAB
could use this to allocate disk space and prompt the user if more space
required.
Test: create an OTA package
Change-Id: Iaedafcf39af2d1a4d9cae9cd1a642a3cd3a4815c
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Some of the unit tests have been leaking temp files because they don't
properly unlink them. In this CL, we did some rearrangement of the
ScopedTempFile class and moved it into the utils.h (instead of testing
only location) so it can be used everywhere and more efficiently. Also
added functionality to open an file descriptor too so users don't have
to keep a different object for the file descriptor.
BUG=b:162766400
TEST=cros_workon_make --board reef --test; Then looked at the
/build/reef/tmp directory and no files were leaked.
Change-Id: Id64a2923d30f27628120497fdefe16bf65fa3fb0
Reviewed-on: https://chromium-review.googlesource.com/c/aosp/platform/system/update_engine/+/2500772
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Jae Hoon Kim <kimjae@chromium.org>
Commit-Queue: Amin Hassani <ahassani@chromium.org>
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cros/master"
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Some attributes are not used by the client. Removed all instances of
of "ignored" and option ttributes from delta generation. Removed
all instances of ImageInfo and moved target and source version
to paygen_payload.
BUG=b:163048638
TEST=FEATURES=test emerge-hatch update_engine
TEST=FEATURES=test emerge update_payload
TEST=./run_pytest lib/paygen/paygen_payload_lib_unittest.py
Change-Id: I9102d37fcf054f2cbeb79e54113925a684de1cfb
Reviewed-on: https://chromium-review.googlesource.com/c/aosp/platform/system/update_engine/+/2388163
Reviewed-by: Amin Hassani <ahassani@chromium.org>
Tested-by: Vyshu Khota <vyshu@google.com>
Commit-Queue: Vyshu Khota <vyshu@google.com>
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As proposed in http://go/vabc, we want to reduce the cow size
for VAB. One nature apporach is to skip writing the idential
blocks to snapshot; instead we can read from the souce blocks.
Similiar to the non-A/B update schema, we need to compute a
sequence for snapshot merge to avoid the read after write problem.
If there is a circular dependency, we will omit some blocks in the
result sequence to break the cycles. So libsnapshot will write
the raw data of these blocks to cow.
All extents in the CowMergeOperations are subsets of a particular
OTA SOURCE_COPY InstallOperation. Also, these src & ext extents
will be contiguous to improve the libsnapshot read performance
before merge completes, as well as to simplify the sequence
generation.
Bug: 162274240
Test: unittest pass, genertes an OTA
Change-Id: I12c952593d83a8e34a0a6cff5a2066c9103a0d30
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Add in unit tests to validate payload properties for JSON and KeyValue
string generation. The JSON properties string should have valid
corresponding "sha256_hex" based on the hash of the entire payload file.
The KeyValue properties string should have valid corresponding payload
and metadata hashes based on payload file size and metadata size
respectively.
BUG=None
TEST=unittests
Change-Id: I0399f420d8ee3dc1e4a103841046b91a0319cdb3
Reviewed-on: https://chromium-review.googlesource.com/1669812
Tested-by: Jae Hoon Kim <kimjae@chromium.org>
Commit-Ready: Jae Hoon Kim <kimjae@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
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