| commit | 107a34f9fc2cb2cfbb1ff83631f778c2c147db22 | [log] [tgz] |
|---|---|---|
| author | Tianjie Xu <xunchang@google.com> | Thu Jun 29 17:04:21 2017 -0700 |
| committer | Tianjie Xu <xunchang@google.com> | Fri Jul 07 16:08:18 2017 -0700 |
| tree | 851abef059862d0029f8b3584093dc2a73f3419f | |
| parent | b87a166a168913d4f387acae02dbbdc848f5e190 [diff] |
Add support to decompress brotli compressed new data 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
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
# 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
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.
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.