Build and use ota_from_target_files as a module.

Bug: 63866463
Test: TreeHugger
Test: m -j otapackage
Test: `m -j otatools-package`. Check bin/ota_from_target_files is
      available. Build an OTA package with standalone otatools.
Change-Id: I533dee1c6997d233601e7f4eae637ff5743ed637

core/Makefile

@@ -3658,6 +3658,7 @@ INTERNAL_OTATOOLS_MODULES := \
   mksquashfs \
   mksquashfsimage.sh \
   mkuserimg_mke2fs \
+  ota_from_target_files \
   sefcontext_compile \
   sgdisk \
   shflags \
@@ -4322,13 +4323,13 @@ ifeq ($(build_ota_package),true)
 # $(2): additional args
 define build-ota-package-target
 PATH=$(INTERNAL_USERIMAGES_BINARY_PATHS):$$PATH \
-    build/make/tools/releasetools/ota_from_target_files \
-    --verbose \
-    --extracted_input_target_files $(patsubst %.zip,%,$(BUILT_TARGET_FILES_PACKAGE)) \
-    --path $(HOST_OUT) \
-    $(if $(OEM_OTA_CONFIG), --oem_settings $(OEM_OTA_CONFIG)) \
-    $(2) \
-    $(BUILT_TARGET_FILES_PACKAGE) $(1)
+    $(OTA_FROM_TARGET_FILES) \
+        --verbose \
+        --extracted_input_target_files $(patsubst %.zip,%,$(BUILT_TARGET_FILES_PACKAGE)) \
+        --path $(HOST_OUT) \
+        $(if $(OEM_OTA_CONFIG), --oem_settings $(OEM_OTA_CONFIG)) \
+        $(2) \
+        $(BUILT_TARGET_FILES_PACKAGE) $(1)
 endef
 
 name := $(TARGET_PRODUCT)
@@ -4338,21 +4339,11 @@ endif
 name := $(name)-ota-$(FILE_NAME_TAG)
 
 INTERNAL_OTA_PACKAGE_TARGET := $(PRODUCT_OUT)/$(name).zip
-
 INTERNAL_OTA_METADATA := $(PRODUCT_OUT)/ota_metadata
 
 $(INTERNAL_OTA_PACKAGE_TARGET): KEY_CERT_PAIR := $(DEFAULT_KEY_CERT_PAIR)
-
-ifeq ($(AB_OTA_UPDATER),true)
-$(INTERNAL_OTA_PACKAGE_TARGET): $(BRILLO_UPDATE_PAYLOAD)
-else
-$(INTERNAL_OTA_PACKAGE_TARGET): $(BROTLI)
-endif
-
 $(INTERNAL_OTA_PACKAGE_TARGET): .KATI_IMPLICIT_OUTPUTS := $(INTERNAL_OTA_METADATA)
-
-$(INTERNAL_OTA_PACKAGE_TARGET): $(BUILT_TARGET_FILES_PACKAGE) \
-	    build/make/tools/releasetools/ota_from_target_files
+$(INTERNAL_OTA_PACKAGE_TARGET): $(BUILT_TARGET_FILES_PACKAGE) $(OTA_FROM_TARGET_FILES)
 	@echo "Package OTA: $@"
 	$(call build-ota-package-target,$@,-k $(KEY_CERT_PAIR) --output_metadata_path $(INTERNAL_OTA_METADATA))
 
@@ -4367,17 +4358,10 @@ endif
 name := $(name)-ota-retrofit-$(FILE_NAME_TAG)
 
 INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET := $(PRODUCT_OUT)/$(name).zip
-
 $(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): KEY_CERT_PAIR := $(DEFAULT_KEY_CERT_PAIR)
-
-ifeq ($(AB_OTA_UPDATER),true)
-$(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): $(BRILLO_UPDATE_PAYLOAD)
-else
-$(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): $(BROTLI)
-endif
-
-$(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): $(BUILT_TARGET_FILES_PACKAGE) \
-	    build/make/tools/releasetools/ota_from_target_files
+$(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): \
+    $(BUILT_TARGET_FILES_PACKAGE) \
+    $(OTA_FROM_TARGET_FILES)
 	@echo "Package OTA (retrofit dynamic partitions): $@"
 	$(call build-ota-package-target,$@,-k $(KEY_CERT_PAIR) --retrofit_dynamic_partitions)
 

core/config.mk

@@ -608,6 +608,7 @@ CHECK_ELF_FILE := build/make/tools/check_elf_file.py
 LPMAKE := $(HOST_OUT_EXECUTABLES)/lpmake$(HOST_EXECUTABLE_SUFFIX)
 BUILD_IMAGE := $(HOST_OUT_EXECUTABLES)/build_image$(HOST_EXECUTABLE_SUFFIX)
 BUILD_SUPER_IMAGE := $(HOST_OUT_EXECUTABLES)/build_super_image$(HOST_EXECUTABLE_SUFFIX)
+OTA_FROM_TARGET_FILES := $(HOST_OUT_EXECUTABLES)/ota_from_target_files$(HOST_EXECUTABLE_SUFFIX)
 
 PROGUARD_HOME := external/proguard
 PROGUARD := $(PROGUARD_HOME)/bin/proguard.sh
@@ -623,7 +624,6 @@ BOOT_SIGNER := $(HOST_OUT_EXECUTABLES)/boot_signer
 FUTILITY := $(HOST_OUT_EXECUTABLES)/futility-host
 VBOOT_SIGNER := $(HOST_OUT_EXECUTABLES)/vboot_signer
 FEC := $(HOST_OUT_EXECUTABLES)/fec
-BRILLO_UPDATE_PAYLOAD := $(HOST_OUT_EXECUTABLES)/brillo_update_payload
 
 DEXDUMP := $(HOST_OUT_EXECUTABLES)/dexdump$(BUILD_EXECUTABLE_SUFFIX)
 PROFMAN := $(HOST_OUT_EXECUTABLES)/profman

tools/releasetools/Android.bp

@@ -119,6 +119,22 @@ python_binary_host {
     ],
 }
 
+python_binary_host {
+    name: "ota_from_target_files",
+    defaults: ["releasetools_binary_defaults"],
+    srcs: [
+        "edify_generator.py",
+        "ota_from_target_files.py",
+    ],
+    libs: [
+        "releasetools_common",
+        "releasetools_verity_utils",
+    ],
+    required: [
+        "brillo_update_payload",
+    ],
+}
+
 python_defaults {
     name: "releasetools_test_defaults",
     srcs: [