107a34f9fc
Add a new writer that can decode the brotli-compressed system/vendor new data stored in the OTA zip. Brotli generally gives better compression rate at the cost of slightly increased time consumption. The patch.dat is already compressed by BZ; so there's no point to further compress it. For the given 1.9G bullhead system image: Size: 875M -> 787M; ~10% reduction of package size. Time: 147s -> 153s; ~4% increase of the block_image_update execution time. (I guess I/O takes much longer time than decompression.) Also it takes 4 minutes to compress the system image on my local machine, 3 more minutes than zip. Test: recovery tests pass && apply a full OTA with brotli compressed system/vendor.new.dat on bullhead Change-Id: I232335ebf662a9c55579ca073ad45265700a621e
The Recovery Image
Quick turn-around testing
mm -j && m ramdisk-nodeps && m recoveryimage-nodeps
# To boot into the new recovery image
# without flashing the recovery partition:
adb reboot bootloader
fastboot boot $ANDROID_PRODUCT_OUT/recovery.img
Running the tests
# After setting up environment and lunch.
mmma -j bootable/recovery
# Running the tests on device.
adb root
adb sync data
# 32-bit device
adb shell /data/nativetest/recovery_unit_test/recovery_unit_test
adb shell /data/nativetest/recovery_component_test/recovery_component_test
# Or 64-bit device
adb shell /data/nativetest64/recovery_unit_test/recovery_unit_test
adb shell /data/nativetest64/recovery_component_test/recovery_component_test
Running the manual tests
recovery-refresh and recovery-persist executables exist only on systems without
/cache partition. And we need to follow special steps to run tests for them.
-
Execute the test on an A/B device first. The test should fail but it will log some contents to pmsg.
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Reboot the device immediately and run the test again. The test should save the contents of pmsg buffer into /data/misc/recovery/inject.txt. Test will pass if this file has expected contents.
ResourceTest validates whether the png files are qualified as background text
image under recovery.
1. `adb sync data` to make sure the test-dir has the images to test.
2. The test will automatically pickup and verify all `_text.png` files in
the test dir.