tree 705a83bdb32de28b3554cda29ca285b46e5ba0bc
parent 6164b22471a2d0dc26d875bc78036adf5fe706c8
author Nicolas Norvez <norvez@chromium.org> 1518052903 -0800
committer chrome-bot <chrome-bot@chromium.org> 1519882185 -0800

image_signing: Fix detection of build flavor

The original "ro.product.name" of the Android image is modified by the
Chrome OS build process to change it to the CrOS device name instead,
which breaks the detection of the build flavor.
Instead, we now rely on the "ro.build.flavor" property which is not
modified.
If the build flavor is either cheets_* or sdk_google_cheets_*, we expect
the keys to be the cheets keys. AOSP keys are used for aosp_cheets_*
build flavors.

BUG=b:72947583
TEST=run against caroline image, scripts detects 'cheets' build flavor
TEST=run against novato-arc64 image (SDK), script detects 'cheets' build
flavor
TEST=run against newbie image (AOSP), script detects 'aosp' build flavor
TEST=run against invalid build property 'paosp_cheets_...', script
aborts as expected
BRANCH=None

Change-Id: I662436b256b59238b00c7374120f315b538fcd75
Reviewed-on: https://chromium-review.googlesource.com/911905
Commit-Ready: Nicolas Norvez <norvez@chromium.org>
Tested-by: Nicolas Norvez <norvez@chromium.org>
Reviewed-by: Victor Hsieh <victorhsieh@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>