From 532fdf4479acb50cdb480e6fdfe24f0698fcd67b Mon Sep 17 00:00:00 2001
From: Tao Bao <tbao@google.com>
Date: Wed, 11 Nov 2015 10:22:48 -0800
Subject: [PATCH] Add ro.build.ab_update property.

Set ro.build.ab_update if AB_OTA_UPDATER is true. Device will depend on
this property to call the proper update API.

Change-Id: I5916ef5b30ea3351d323382f7ce83a17df2b0a70
---
 core/Makefile      | 1 +
 tools/buildinfo.sh | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/core/Makefile b/core/Makefile
index d4dc002de3..37c11b6e98 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -204,6 +204,7 @@ endif
 			BUILD_DISPLAY_ID="$(BUILD_DISPLAY_ID)" \
 			BUILD_NUMBER="$(BUILD_NUMBER)" \
 			BOARD_BUILD_SYSTEM_ROOT_IMAGE="$(BOARD_BUILD_SYSTEM_ROOT_IMAGE)" \
+			AB_OTA_UPDATER="$(AB_OTA_UPDATER)" \
 			PLATFORM_VERSION="$(PLATFORM_VERSION)" \
 			PLATFORM_SECURITY_PATCH="$(PLATFORM_SECURITY_PATCH)" \
 			PLATFORM_BASE_OS="$(PLATFORM_BASE_OS)" \
diff --git a/tools/buildinfo.sh b/tools/buildinfo.sh
index 1329be7470..89af758f2a 100755
--- a/tools/buildinfo.sh
+++ b/tools/buildinfo.sh
@@ -23,6 +23,9 @@ echo "ro.build.flavor=$TARGET_BUILD_FLAVOR"
 if [ -n "$BOARD_BUILD_SYSTEM_ROOT_IMAGE" ] ; then
   echo "ro.build.system_root_image=$BOARD_BUILD_SYSTEM_ROOT_IMAGE"
 fi
+if [ -n "$AB_OTA_UPDATER" ] ; then
+  echo "ro.build.ab_update=$AB_OTA_UPDATER"
+fi
 echo "ro.product.model=$PRODUCT_MODEL"
 echo "ro.product.brand=$PRODUCT_BRAND"
 echo "ro.product.name=$PRODUCT_NAME"