From 00fe587974565b110813b22ac12451758be0037d Mon Sep 17 00:00:00 2001
From: Ying Wang <wangying@google.com>
Date: Wed, 23 Jul 2014 14:35:40 -0700
Subject: [PATCH] Support to install prebuilt split APKs with
 LOCAL_PACKAGE_SPLITS

In prebuilt app module, you can use LOCAL_PACKAGE_SPLITS to specify a
list of prebuilt split apks. The build system will sign and zipalign the
apks and install them with the same file names.
Note that you need to put all the source split apks in the same folder.

Bug: 16319961
Change-Id: Id2b6d743c1edc5e436007ec11acece1748adad45
---
 core/prebuilt_internal.mk | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index 23ca279d7..5666cfd07 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -187,6 +187,42 @@ $(built_odex) : $(my_prebuilt_src_file)
 	$(call dexpreopt-one-file,$<,$@)
 endif
 
+###############################
+## Install split apks.
+ifdef LOCAL_PACKAGE_SPLITS
+# LOCAL_PACKAGE_SPLITS is a list of apks to be installed.
+built_apk_splits := $(addprefix $(built_module_path)/,$(notdir $(LOCAL_PACKAGE_SPLITS)))
+installed_apk_splits := $(addprefix $(my_module_path)/,$(notdir $(LOCAL_PACKAGE_SPLITS)))
+
+# Rules to sign and zipalign the split apks.
+my_src_dir := $(sort $(dir $(LOCAL_PACKAGE_SPLITS)))
+ifneq (1,$(words $(my_src_dir)))
+$(error You must put all the split source apks in the same folder: $(LOCAL_PACKAGE_SPLITS))
+endif
+my_src_dir := $(LOCAL_PATH)/$(my_src_dir)
+
+$(built_apk_splits) : PRIVATE_PRIVATE_KEY := $(LOCAL_CERTIFICATE).pk8
+$(built_apk_splits) : PRIVATE_CERTIFICATE := $(LOCAL_CERTIFICATE).x509.pem
+$(built_apk_splits) : $(built_module_path)/%.apk : $(my_src_dir)/%.apk | $(ACP)
+	$(copy-file-to-new-target)
+	$(sign-package)
+	$(align-package)
+
+# Rules to install the split apks.
+$(installed_apk_splits) : $(my_module_path)/%.apk : $(built_module_path)/%.apk | $(ACP)
+	@echo "Install: $@"
+	$(copy-file-to-new-target)
+
+# Register the additional built and installed files.
+ALL_MODULES.$(my_register_name).INSTALLED += $(installed_apk_splits)
+ALL_MODULES.$(my_register_name).BUILT_INSTALLED += \
+  $(foreach s,$(LOCAL_PACKAGE_SPLITS),$(built_module_path)/$(notdir $(s)):$(my_module_path)/$(notdir $(s)))
+
+# Make sure to install the splits when you run "make <module_name>".
+$(my_register_name): $(installed_apk_splits)
+
+endif # LOCAL_PACKAGE_SPLITS
+
 else # LOCAL_MODULE_CLASS != APPS
 ifneq ($(LOCAL_PREBUILT_STRIP_COMMENTS),)
 $(built_module) : $(my_prebuilt_src_file)