| efa62d959cf8f225477ab85d8ff42d5150007cf8 |
|
09-Nov-2017 |
Amin Hassani <ahassani@google.com> |
update_engine: Adds BROTLI_BSDIFF operation
Brotli compression creates on average 10%-20% smaller output than bzip2
in addition to having faster decompressor. With recent changes in bsdiff
to compress the its patch with brotli, we can use it in the
update_engine as a new operation BROTLI_BSDIFF. This operation will be
turned on in minor version 4. However, this CL only adds support for it
in the client. It will not generate BROTLI_BSDIFF operations yet.
BUG=chromium:783437
TEST=unittests pass for both update_engine and update_payload;
'brillo_update_payload {generate|verify}' passes;
'scripts/paycheck.py payload.delta' passes;
Change-Id: Ie791ba5431561c95de6fbc031a8196dbfd912288
Reviewed-on: https://chromium-review.googlesource.com/764791
Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Ben Chan <benchan@chromium.org>
/system/update_engine/payload_generator/ab_generator.h
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| 726aeca1c665910593761a1990ee50f22d98f53f |
|
06-Apr-2016 |
Alex Deymo <deymo@google.com> |
delta_generator: Use REPLACE_XZ in deltas when allowed.
This patch moves the generation of the best allowed full operation to a
new function which now includes ZERO, REPLACE, REPLACE_BZ and REPLACE_XZ
when allowed. This function is used to produce a full operation
whenever it is needed in the "full" payload generator and the AB "delta"
payload generator.
Bug: 24578399
TEST=brillo_update_payload generated REPLACE_XZ operations for a delta payload that was using REPLACE_BZ operations and merged them.
TEST=brillo_update_payload generated a full payload with REPLACE, REPLACE_BZ and REPLACE_XZ operations.
TEST=Updated unittests.
Change-Id: I29618094a84ef8050f8dd7ede0fd70056dc9d650
/system/update_engine/payload_generator/ab_generator.h
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| 39910dcd1d68987ccee7c3031dc269233a8490bb |
|
10-Nov-2015 |
Alex Deymo <deymo@google.com> |
Split payload application code into a subdirectory.
This patch splits from the main libupdate_engine code the part that
is strictly used to download and apply a payload into a new static
library, moving the code to subdirectories. The new library is divided
in two subdirectories: common/ and payload_consumer/, and should not
depend on other update_engine files outside those two subdirectories.
The main difference between those two is that the common/ tools are more
generic and not tied to the payload consumer process, but otherwise they
are both compiled together.
There are still dependencies from the new libpayload_consumer library
into the main directory files and DBus generated files. Those will be
addressed in follow up CLs.
Bug: 25197634
Test: FEATURES=test emerge-link update_engine; `mm` on Brillo.
Change-Id: Id8d0204ea573627e6e26ca9ea17b9592ca95bc23
/system/update_engine/payload_generator/ab_generator.h
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| 82352f97b4621dbf6af8308ff0b0b17b0968b53a |
|
10-Nov-2015 |
Sen Jiang <senj@google.com> |
delta_generator: Include per-operation source hash.
This adds a src_sha256_hash field in the operation if minor version is 3.
Bug: 23182225
TEST=cros_workon_make update_engine --test
TEST=Generated a minor version 3 payload, the manifest is about 50% larger.
Change-Id: I0e363fca4de24bae64ac83930afdd42a6ddc21c9
/system/update_engine/payload_generator/ab_generator.h
|
| 3f39d5cc753905874d8d93bef94f857b8808f19e |
|
13-Oct-2015 |
Alex Vakulenko <avakulenko@google.com> |
update_engine: Rename "chromeos" -> "brillo" in include paths and namespaces
libchromeos is transitioning to libbrillo and chromeos namespaces
and include directory is changing to brillo.
Bug: 24872993
Change-Id: I770659a95be380a50fe3b2ba9f91d65818f40945
/system/update_engine/payload_generator/ab_generator.h
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| ebdf17d4202c67933764135bfc1cece629829201 |
|
19-Aug-2015 |
Sen Jiang <senj@google.com> |
Generate update operations per partition
In order to support multiple partitions, OperationsGenerator should take one
partition at a time, and be called multiple times. This also reduce code
repetition.
TEST=FEATURES=test emerge-peppy update_engine; cros_generate_update_payload
generate same payload as before.
BUG: 23037923
Change-Id: Iefbe87401217873e6dbdc616791667cfd1ec76a3
/system/update_engine/payload_generator/ab_generator.h
|
| aea4c1cea20dda7ae7e85fc8924a2d784f70d806 |
|
20-Aug-2015 |
Alex Deymo <deymo@google.com> |
Re-license update_engine to Apache2
This patch automatically replaced the license on all text files from
Chromium OS (BSD style) to AOSP (Apache2), keeping the original year as
a reference.
The license header was added to .gyp and .gypi files, the NOTICE was
replaced with a copy of the Apache2 license and MODULE_LICENSE_* file
was updated.
BUG=b/23084294
TEST=grep 'Chromium OS Authors' doesn't find anything.
Change-Id: Ie5083750755f5180a8a785b24fe67dbf9195cd10
/system/update_engine/payload_generator/ab_generator.h
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| 8cc502dacbccdab96824d42287f230ce04004784 |
|
10-Aug-2015 |
Sen Jiang <senj@chromium.org> |
update_engine: Change OperationsGenerator to use BlobFileWriter
BUG=chromium:517280
TEST=Unit test for BlobFileWriter
Change-Id: Ib49925676331acee97ff6b4cec38a81ca8b157a1
Reviewed-on: https://chromium-review.googlesource.com/291441
Tested-by: Sen Jiang <senj@chromium.org>
Reviewed-by: Alex Deymo <deymo@chromium.org>
Commit-Queue: Sen Jiang <senj@chromium.org>
/system/update_engine/payload_generator/ab_generator.h
|
| 2d3b2d635e50c6886e285afb86c3187d9e0bd360 |
|
18-Jul-2015 |
Alex Deymo <deymo@chromium.org> |
update_engine: Implement soft/hard chunk size limits.
The current approach uses a single chunk_size value, that defaults to
-1 (or "whole files") for delta payloads. The "whole files" default is
the preferred value since BSDIFF and SOURCE_BSDIFF operations (the most
common operations in real delta payloads) will benefit from having
access to the whole file in the old and new partition, in particular in
cases like the chrome binary (~120 MiB in size).
On the other hand, very big chunks have a big memory footprint in most
cases. Current implementations of BSDIFF, REPLACE_BZ and REPLACE will
require as much private memory as the destination chunk_size or more.
Because of this and due to the lack of old data, a small chunk_size
(1 MiB) is used for full payloads.
To break this tension between having a big chunk_size for operations
that will benefit from it versus having a small chunk_size for cases
where it doesn't change anything, this patch introduces two chunk
size values: a hard and soft limit.
The hard_chunk_size has the same meaning as the old chunk_size: no
operation should have a destination bigger than the provided hard
limit. The soft_chunk_size is the preferred chunk size for an
operation when a bigger chunk will not benefit significantly the
final payload size. Having a small chunk size for operations like
REPLACE_BZ, REPLACE, SOURCE_COPY and MOVE is important to keep the
memory footprint low when it the extra memory is not required.
The new soft_chunk_size limit is used when merging operations
(previously hard-coded to 1 MiB) and when generating new
operations for zeroed and moved blocks.
BUG=chromium:485397
TEST=Run cros_generate_update_payload for full and delta payloads.
Inspected the chunk size in the resulting payloads.
Change-Id: I370048a81913ad23a151cfef6690627b7fff7277
Reviewed-on: https://chromium-review.googlesource.com/286568
Reviewed-by: Gilad Arnold <garnold@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>
Trybot-Ready: Alex Deymo <deymo@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
/system/update_engine/payload_generator/ab_generator.h
|
| 14158570d3995008dc93a628004118b87a6bca01 |
|
13-Jun-2015 |
Alex Deymo <deymo@chromium.org> |
update_engine: Split delta_diff_generator file.
The DeltaDiffGenerator class includes both an OperationsGenerator using the
A-to-B operations and a set of common methods used also by the inplace generator.
The delta_diff_generator.{h,cc} files also include a single function to generate
the payload (GenerateUpdatePayloadFile) that centralizes the logic of generating
the operations and writing the payload.
This patch splits these three parts in different files. The common delta diff
function are moved to the delta_diff_utils.{h,cc} files. The operations generator
class that uses A-to-B operations is now in a new ab_generator.{h,cc} pair of files
that implement the ABGenerator() class. Finally, the payload file writing methods
are now in a single PayloadFile class.
This allow us to create payload files without the need to generate images and
their deltas. This will be used in a follow up CL to remove the image generation
logic from the unittests.
BUG=chromium:351589
TEST=Ran unittests. Regenerate a payload with and without this patch; got the same results.
Change-Id: I6816d2c805ba8c0c5c9423c720131a100a15ebaa
Reviewed-on: https://chromium-review.googlesource.com/280838
Reviewed-by: Alex Deymo <deymo@chromium.org>
Commit-Queue: Alex Deymo <deymo@chromium.org>
Trybot-Ready: Alex Deymo <deymo@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>
/system/update_engine/payload_generator/ab_generator.h
|