Add a rule to generate public API stubs in dex format.
Cherry-pick from dd2e5eb113ddca03345f1be7297b709c1a3a2ff1
The dex public SDK stubs are used for cloud verification.
The stubs contains public SDK version 28, 29, 30.
Bug: 171217392
Test: Make
Change-Id: I4615ccda9f093af9ac17e162a73a7e0a1c3ca5f6
Merged-In: I4615ccda9f093af9ac17e162a73a7e0a1c3ca5f6
diff --git a/Android.mk b/Android.mk
index 6f5db23..9f78cc9 100644
--- a/Android.mk
+++ b/Android.mk
@@ -853,3 +853,58 @@
$(HOST_OUT_EXECUTABLES)/dex2oats \
$(HOST_OUT_EXECUTABLES)/dex2oatds \
$(HOST_OUT_EXECUTABLES)/profman
+
+########################################################################
+
+# Build a target that contains dex public SDK stubs for SDK version in the list.
+# Zip files structure:
+# public-sdk-28-stub.zip
+# classes.dex
+# public-sdk-29-stub.zip
+# classes.dex
+# public-sdk-30-stub.zip
+# classes.dex
+MIN_SDK_VERSION := 28
+SDK_VERSIONS := $(call numbers_greater_or_equal_to,$(MIN_SDK_VERSION),$(TARGET_AVAIALBLE_SDK_VERSIONS))
+
+# Create dex public SDK stubs.
+define get_public_sdk_stub_dex
+$(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/public_sdk_$(1)_stub_intermediates/classes.dex
+endef
+
+# The input is the SDK version.
+define create_public_sdk_dex
+public_sdk_$(1)_stub := $$(call get_public_sdk_stub_dex,$(1))
+$$(public_sdk_$(1)_stub): PRIVATE_MIN_SDK_VERSION := $(1)
+$$(public_sdk_$(1)_stub): $$(call resolve-prebuilt-sdk-jar-path,$(1)) $$(DX) $$(ZIP2ZIP)
+ $$(transform-classes.jar-to-dex)
+endef
+
+$(foreach version,$(SDK_VERSIONS),$(eval $(call create_public_sdk_dex,$(version))))
+
+# Create dex public SDK stubs zip.
+define get_public_sdk_stub_zip
+$(call intermediates-dir-for,PACKAGING,public_sdk_stub,HOST)/public-sdk-$(1)-stub.zip
+endef
+
+define create_public_sdk_zip
+PUBLIC_SDK_$(1)_STUB_ZIP_PATH := $$(call get_public_sdk_stub_zip,$(1))
+$$(PUBLIC_SDK_$(1)_STUB_ZIP_PATH): PRIVATE_SDK_STUBS_DEX_DIR := $$(dir $$(public_sdk_$(1)_stub))
+$$(PUBLIC_SDK_$(1)_STUB_ZIP_PATH): $$(SOONG_ZIP) $$(public_sdk_$(1)_stub)
+ rm -f $$@
+ $$(SOONG_ZIP) -o $$@ -C $$(PRIVATE_SDK_STUBS_DEX_DIR) -D $$(PRIVATE_SDK_STUBS_DEX_DIR)
+endef
+
+$(foreach version,$(SDK_VERSIONS),$(eval $(call create_public_sdk_zip,$(version))))
+
+# Make the zip files available for prebuilts.
+$(foreach version,$(SDK_VERSIONS),$(call dist-for-goals,sdk,$(call get_public_sdk_stub_zip,$(version))))
+
+STUB_ZIP_FILES = $(foreach version,$(SDK_VERSIONS),$(call get_public_sdk_stub_zip,$(version)))
+
+.PHONY: public_sdk_stubs
+public_sdk_stubs: $(STUB_ZIP_FILES)
+
+MIN_SDK_VERSION :=
+SDK_VERSIONS :=
+
