applypatch() was initially designed for file-based OTA, operating on
individual files. It was later extended to allow patching eMMC targets
as a whole, in favor of block-based updates.
As we have deprecated file-based OTA since Oreo, part of the code in
applypatch() has become obsolete. This CL refactors the related
functions, by removing the obsolete logic and focusing on eMMC targets.
Since this CL substantially changes applypatch APIs, it adds new
functions to avoid unintentionally mixing them together. In particular,
it removes `applypatch()`, `applypatch_check()`, `applypatch_flash()`,
and adds `PatchPartition()`, `PatchPartitionCheck()`, `FlashPartition()`
and `CheckPartition()`. It also replaces the old Edify functions
`apply_patch()` and `apply_patch_check()` with `patch_partition()` and
`patch_partition_check()` respectively.
This CL requires matching changes to OTA generation script (in the same
topic).
Bug: 110106408
Test: Run recovery_unit_test and recovery_component_test on marlin.
Test: `m dist` with non-A/B target. Verify
/system/bin/install-recovery.sh on device.
Test: `m dist` with non-A/B target using BOARD_USES_FULL_RECOVERY_IMAGE.
Verify /system/bin/install-recovery.sh on device.
Test: Install an incremental OTA with the new updater and scripts.
Change-Id: Ia34a90114bb227f4216eb478c22dc98c8194cb7f
This applies to the standalone applypatch executable
(/system/bin/applypatch on device). This executable is only used when
installing (via patching or flashing) a recovery image on non-A/B
device.
This CL removes the support for patching non-eMMC targets from
applypatch that has been deprecated as part of file-based OTA. For
patching eMMC targets, it also drops the support for accepting multiple
patches (not useful, since the source file must be fixed).
This CL needs the matching change in the same topic, which writes the
script of "/system/bin/install-recovery.sh". Note that this CL doesn't
chanage the applypatch API signatures, in order to minimize the CL size.
*BEFORE*
usage: /system/bin/applypatch [-b <bonus-file>] <src-file> <tgt-file> <tgt-sha1> <tgt-size> [<src-sha1>:<patch> ...]
or /system/bin/applypatch -c <file> [<sha1> ...]
or /system/bin/applypatch -l
Filenames may be of the form
EMMC:<partition>:<len_1>:<sha1_1>:<len_2>:<sha1_2>:...
to specify reading from or writing to an EMMC partition.
*AFTER*
Usage:
check mode
applypatch --check EMMC:<target-file>:<target-size>:<target-sha1>
flash mode
applypatch --flash <source-file>
--target EMMC:<target-file>:<target-size>:<target-sha1>
patch mode
applypatch [--bonus <bonus-file>]
--patch <patch-file>
--target EMMC:<target-file>:<target-size>:<target-sha1>
--source EMMC:<source-file>:<source-size>:<source-sha1>
show license
applypatch --license
Bug: 110106408
Test: Run recovery_component_test and recovery_unit_test on marlin.
Test: Build a non-A/B target that has /system/bin/install-recovery.sh.
Verify that it installs recovery image successfully.
Test: Build a non-A/B target that has /system/bin/install-recovery.sh in
flashing mode. Verify that it installs recovery image successfully.
Change-Id: I71f9a71fb457e6f663e0b5511946949e65b4b78c
Refactor applypatch/main.cpp into libapplypatch_modes so that we can add
testcases.
Some changes to applypatch/main.cpp:
- Replace char** argv with const char**;
- Use android::base::Split() to split ":";
- Use android::base::ParseUInt().
Bug: 32383590
Test: Unit tests pass, install-recovery.sh works.
Change-Id: I44e7bfa5ab717d439ea1d0ee9ddb7b2c40bb95a4
