For non AB devices system partition should be unmounted
if check_prereq function fails.
This patch also refactors backuptool a bit for AB devices
in order to look same as backuptool for non AB devices.
Change-Id: Ia1f4ae95c9e4dae4df844853e81c264bc838f177
* The LineageOS versions properties were removed from the build.prop,
which is resolved properly in commit:
"lineage: Keep LineageOS versions properties in build.prop"
Change-Id: I0060141c097b3d14c3710eee1e0caf7110634967
Change-Id: Ib11670474641d6fd14a00f8421e9fe8d1879bbc2
* Since A/B addon.d scripts are going to need to do things in a
specific way or things could go horribly wrong for a user, let's
introduce versioning so that scripts can claim to be compatible.
* A script can denote it is compatible with addon.d version 2 by
adding: "# ADDOND_VERSION=2" somewhere in its script.
* Only A/B will require version 2 scripts for now, and version 2
scripts will still run on non-A/B. Additionally if a script does
not explicitly denote its version, assume its version 1.
* Version 1: The same old scripts we've always used. We cannot assume
these will all work with A/B backuptools.
* Version 2: Scripts that denote they are compatible with version 2
must be aware of the fact that A/B devices will run this
script for a rom, during a seamless update, mounted at
/postinstall. The best way to ensure compatibility would
be to use the pre-designated functions found in the
backuptool[,_ab].functions scripts.
Change-Id: I5573018dabd21bb64c7c964e2081806072a75243
* A/B OTA devices wont run backuptools in recovery (because they don't
go in to recovery to do an OTA). In these cases let's use a modified
version to backup/restore from within android upon postinstall.
* Add backuptool_postinstall.sh which will be run prior to the normal
postinstall script in order to backup/restore via addon.d scripts.
* This needs to be done in such a manner because we need /postinstall
mounted rw instead of the ro with context= options which are used for
the normal postinstall (dexopt) script.
Change-Id: I51511870634dd1ec5388adafddb446f95cc5a950
