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Commit a5560db8 authored by Akilesh Kailash's avatar Akilesh Kailash
Browse files

libsnapshot: Add script to test snapshot updates 



$time ./system/core/fs_mgr/libsnapshot/apply-update.sh --update-static-partitions

Update completed

real	1m19.850s
user	0m10.319s
sys	0m7.448s

Dynamic parition update only:

$time ./system/core/fs_mgr/libsnapshot/apply-update.sh

Update completed

real	0m19.032s
user	0m10.480s
sys	0m7.462s

Bug: 329255363
Test: apply-update.sh

Change-Id: I2af4fe022e35b2b813ff83e2084d22295b3057dc
Signed-off-by: default avatarAkilesh Kailash <akailash@google.com>
parent 95de81f7

fs_mgr/libsnapshot/scripts/apply-update.sh

0 → 100755
+77 −0
Original line number Diff line number Diff line 
#!/bin/bash



# This is a debug script to quicky test end-to-end flow

# of snapshot updates without going through update-engine.

#

# Usage:

#

#  To update both dynamic and static partitions:

#

# ./system/core/fs_mgr/libsnapshot/apply_update.sh [--update-static-partitions] [--wipe]

#

# --update-static-partitions: This will update bootloader and static A/B

# partitions

# --wipe: Allows data wipe as part of update flow

#

#  To update dynamic partitions only (this should be used when static

#  partitions are present in both the slots):

#

#  ./system/core/fs_mgr/libsnapshot/apply_update.sh

#

#



rm -f $OUT/*.patch



# Compare images and create snapshot patches. Currently, this

# just compares two identical images in $OUT. In general, any source

# and target images could be passed to create snapshot patches. However,

# care must be taken to ensure source images are already present on the device.

#

# create_snapshot is a host side binary. Build it with `m create_snapshot`

create_snapshot --source=$OUT/system.img --target=$OUT/system.img &

create_snapshot --source=$OUT/product.img --target=$OUT/product.img &

create_snapshot --source=$OUT/vendor.img --target=$OUT/vendor.img &

create_snapshot --source=$OUT/system_ext.img --target=$OUT/system_ext.img &

create_snapshot --source=$OUT/vendor_dlkm.img --target=$OUT/vendor_dlkm.img &

create_snapshot --source=$OUT/system_dlkm.img --target=$OUT/system_dlkm.img &



echo "Waiting for snapshot patch creation"

wait $(jobs -p)

echo "Snapshot patch creation completed"



mv *.patch $OUT/



adb root

adb wait-for-device

adb shell mkdir -p /data/update/

adb push $OUT/*.patch /data/update/



if [[ "$2" == "--wipe" ]]; then

  adb shell snapshotctl apply-update /data/update/ -w

else

  adb shell snapshotctl apply-update /data/update/

fi



# Check if the --update-static-partitions option is provided.

# For quick developer workflow, there is no need to repeatedly

# apply static partitions.

if [[ "$1" == "--update-static-partitions" ]]; then

  adb reboot bootloader

  sleep 5

  if [[ "$2" == "--wipe" ]]; then

      fastboot -w

  fi

  fastboot flash bootloader $OUT/bootloader.img

  sleep 1

  fastboot reboot bootloader

  sleep 1

  fastboot flash radio $OUT/radio.img

  sleep 1

  fastboot reboot bootloader

  sleep 1

  fastboot flashall --exclude-dynamic-partitions --disable-super-optimization

else

  adb reboot

fi



echo "Update completed"