commit b7e2d92e4408611f486d4c2911b5a5c5ec8aef3f
author Richard Uhler <ruhler@google.com> Mon Jan 21 14:34:50 2019 +0000
committer Richard Uhler <ruhler@google.com> Tue Jan 22 09:00:22 2019 +0000
tree 2ca98fe1889796dd5c4c88cd63ace5a0e0cf892e
parent 39adac52d04b6ea4812eef9f82844448ad73c2b4

Store meta data for a rollback in a single file.

Rather than spread it out across multiple per-package info.json files.
This will simplify future changes to the rollback metadata format.

Before this change, the data layout looked like:

 .../
    com.package.A/
        base.apk
        info.json
    com.package.B/
        base.apk
        info.json
    enabled.txt

After this change, the data layout looks like:

 .../
    rollback.json
    com.package.A/
        base.apk
    com.package.B/
        base.apk

Bug: 112431924
Test: atest RollbackTest
Change-Id: I2a29dc6063e02c502eb6f73c56a4590904de8739