The system partitions has regions that we shouldn't write and can't
depend on the contents of. Adds a new script to generate a map of
these regions (using the sparse image as input), and include the map
in the package zip so it can be used when writing or patching the
system partition.
Also fixes a bug where the wrong SELinux file contexts are used when
generating incrementals.
Change-Id: Iaca5b967a3b7d1df843c7c21becc19b3f1633dad
These scripts already use some post-2.4 features, so let's make it
official: Python 2.7 is needed to run them.
Change-Id: I256e9ed99b0b62abe4e22a7b1f811acb7419e88e
Instead of writing individual files and fixing up their metadata, make
full OTAs contain a system image and simply write it to the block
device.
This is only done for target-files that already contain the recovery
flashing information, older target-files still get a file-based full
OTA.
Bug: 12893978
Change-Id: If7586083c8f275e24fec49d260af5b5aff4a0a88
