Build build_flags.json in soong

Move the make build rule for build_flags.json to soong.

Bug: 324996303
Test: m --no-skip-soong-tests
Change-Id: I958d5bb78db1d63b6145ac6a498490faa2fea315

core/packaging/flags.mk

@@ -21,50 +21,6 @@
 _FLAG_PARTITIONS := product system system_ext vendor
 
 
-# -----------------------------------------------------------------
-# Release Config Flags
-
-# Create a summary file of build flags for each partition
-# $(1): built build flags json file
-# $(2): installed build flags json file
-# $(3): flag names
-define generate-partition-build-flag-file
-$(eval $(strip $(1)): PRIVATE_OUT := $(strip $(1)))
-$(eval $(strip $(1)): PRIVATE_FLAG_NAMES := $(strip $(3)))
-$(strip $(1)):
-	mkdir -p $$(dir $$(PRIVATE_OUT))
-	echo '{' > $$(PRIVATE_OUT)
-	echo '"flags": [' >> $$(PRIVATE_OUT)
-	$$(foreach flag, $$(PRIVATE_FLAG_NAMES), \
-		( \
-			printf '  { "name": "%s", "value": "%s", ' \
-					'$$(flag)' \
-					'$$(_ALL_RELEASE_FLAGS.$$(flag).VALUE)' \
-					; \
-			printf '"set": "%s", "default": "%s", "declared": "%s" }' \
-					'$$(_ALL_RELEASE_FLAGS.$$(flag).SET_IN)' \
-					'$$(_ALL_RELEASE_FLAGS.$$(flag).DEFAULT)' \
-					'$$(_ALL_RELEASE_FLAGS.$$(flag).DECLARED_IN)' \
-					; \
-			printf '$$(if $$(filter $$(lastword $$(PRIVATE_FLAG_NAMES)),$$(flag)),,$$(comma))\n' ; \
-		) >> $$(PRIVATE_OUT) ; \
-	)
-	echo "]" >> $$(PRIVATE_OUT)
-	echo "}" >> $$(PRIVATE_OUT)
-$(call copy-one-file, $(1), $(2))
-endef
-
-$(foreach partition, $(_FLAG_PARTITIONS), \
-	$(eval build_flag_summaries.$(partition) := $(PRODUCT_OUT)/$(partition)/etc/build_flags.json) \
-	$(eval $(call generate-partition-build-flag-file, \
-				$(TARGET_OUT_FLAGS)/$(partition)/build_flags.json, \
-				$(build_flag_summaries.$(partition)), \
-				$(_ALL_RELEASE_FLAGS.PARTITIONS.$(partition)) \
-			) \
-	) \
-)
-
-
 # -----------------------------------------------------------------
 # Aconfig Flags
 

target/product/base_product.mk

@@ -16,6 +16,7 @@
 
 # Base modules and settings for the product partition.
 PRODUCT_PACKAGES += \
+    build_flag_product \
     fs_config_dirs_product \
     fs_config_files_product \
     group_product \

target/product/base_system.mk

@@ -45,6 +45,7 @@ PRODUCT_PACKAGES += \
     bu \
     bugreport \
     bugreportz \
+    build_flag_system \
     cgroups.json \
     charger \
     cmd \

target/product/base_system_ext.mk

@@ -16,6 +16,7 @@
 
 # Base modules and settings for the system_ext partition.
 PRODUCT_PACKAGES += \
+    build_flag_system_ext \
     fs_config_dirs_system_ext \
     fs_config_files_system_ext \
     group_system_ext \

target/product/base_vendor.mk

@@ -18,6 +18,7 @@
 PRODUCT_PACKAGES += \
     adbd.recovery \
     android.hardware.health@2.0-impl-default.recovery \
+    build_flag_vendor \
     cgroups.recovery.json \
     charger.recovery \
     init_second_stage.recovery \