Add BUILD_USERNAME and BUILD_HOSTNAME

These replace $USER and `hostname`, which will soon become stable values
due to sandboxing the build on Linux.

Bug: 122270019
Test: check build.prop
Change-Id: I7493e45a2a2defbdba5d82596cb91d68480f0187

core/Makefile

@@ -317,7 +317,7 @@ $(intermediate_system_build_prop): PRIVATE_BUILD_DESC := $(build_desc)
 # The string used to uniquely identify the combined build and product; used by the OTA server.
 ifeq (,$(strip $(BUILD_FINGERPRINT)))
   ifeq ($(strip $(HAS_BUILD_NUMBER)),false)
-    BF_BUILD_NUMBER := $(USER)$$($(DATE_FROM_FILE) +%m%d%H%M)
+    BF_BUILD_NUMBER := $(BUILD_USERNAME)$$($(DATE_FROM_FILE) +%m%d%H%M)
   else
     BF_BUILD_NUMBER := $(file <$(BUILD_NUMBER_FILE))
   endif
@@ -420,6 +420,8 @@ endif
 	        BUILD_ID="$(BUILD_ID)" \
 	        BUILD_DISPLAY_ID="$(BUILD_DISPLAY_ID)" \
 	        DATE="$(DATE_FROM_FILE)" \
+	        BUILD_USERNAME="$(BUILD_USERNAME)" \
+	        BUILD_HOSTNAME="$(BUILD_HOSTNAME)" \
 	        BUILD_NUMBER="$(BUILD_NUMBER_FROM_FILE)" \
 	        BOARD_BUILD_SYSTEM_ROOT_IMAGE="$(BOARD_BUILD_SYSTEM_ROOT_IMAGE)" \
 	        AB_OTA_UPDATER="$(AB_OTA_UPDATER)" \

core/main.mk

@@ -80,7 +80,7 @@ endif
 ifeq ($(strip $(HAS_BUILD_NUMBER)),false)
   # BUILD_NUMBER has a timestamp in it, which means that
   # it will change every time.  Pick a stable value.
-  FILE_NAME_TAG := eng.$(USER)
+  FILE_NAME_TAG := eng.$(BUILD_USERNAME)
 else
   FILE_NAME_TAG := $(file <$(BUILD_NUMBER_FILE))
 endif

core/version_defaults.mk

@@ -314,7 +314,7 @@ ifndef BUILD_NUMBER
   # If no BUILD_NUMBER is set, create a useful "I am an engineering build
   # from this date/time" value.  Make it start with a non-digit so that
   # anyone trying to parse it as an integer will probably get "0".
-  BUILD_NUMBER := eng.$(shell echo $${USER:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S)
+  BUILD_NUMBER := eng.$(shell echo $${BUILD_USERNAME:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S)
   HAS_BUILD_NUMBER := false
 endif
 .KATI_READONLY := BUILD_NUMBER HAS_BUILD_NUMBER

tools/buildinfo.sh

@@ -18,8 +18,8 @@ echo "ro.build.version.min_supported_target_sdk=$PLATFORM_MIN_SUPPORTED_TARGET_S
 echo "ro.build.date=`$DATE`"
 echo "ro.build.date.utc=`$DATE +%s`"
 echo "ro.build.type=$TARGET_BUILD_TYPE"
-echo "ro.build.user=$USER"
-echo "ro.build.host=`hostname`"
+echo "ro.build.user=$BUILD_USERNAME"
+echo "ro.build.host=$BUILD_HOSTNAME"
 echo "ro.build.tags=$BUILD_VERSION_TAGS"
 echo "ro.build.flavor=$TARGET_BUILD_FLAVOR"
 if [ -n "$BOARD_BUILD_SYSTEM_ROOT_IMAGE" ] ; then