build: Add support for building guice within the AOSP (host only).
Builds the no_aop variant only since Android doesn't support bytecode
weaving.
Bug: 27552463
Change-Id: I71b4f3b26b9307b36444cecc75d67de03be9cb23
diff --git a/AndroidCallMunge.mk b/AndroidCallMunge.mk
new file mode 100644
index 0000000..404abf8
--- /dev/null
+++ b/AndroidCallMunge.mk
@@ -0,0 +1,42 @@
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+#
+# Build support for guice within the Android Open Source Project
+# See https://source.android.com/source/building.html for more information
+#
+
+# Factored-out implementation of calling munge to post-process guice java files.
+#
+# Arguments:
+# (Constant)
+# munge_host_jar = Path to munge-host.jar (built by munge-host rule)
+# munge_zip_location = Path to lib/build/munge.jar source archive
+# (Varying)
+# munge_src_arguments = List of files that need to be munged
+# guice_munge_flags = List of flags to pass to munge (e.g. guice_munge_flags := -DNO_AOP)
+#
+
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+# Run munge over every single java file.
+intermediates:= $(local-generated-sources-dir)
+GEN := $(addprefix $(intermediates)/, $(munge_src_arguments)) # List of all files that need to be munged.
+$(GEN) : PRIVATE_ZIP_LOCATION := $(munge_zip_location)
+$(GEN) : PRIVATE_HOST_JAR := $(munge_host_jar)
+$(GEN) : PRIVATE_MUNGE_FLAGS := $(guice_munge_flags)
+$(GEN) : PRIVATE_CUSTOM_TOOL = java -cp $(PRIVATE_HOST_JAR) Munge $(PRIVATE_MUNGE_FLAGS) $< > $@
+$(GEN): $(intermediates)/%.java : $(LOCAL_PATH)/%.java $(LOCAL_PATH)/$(munge_zip_location) $(munge_host_jar)
+ $(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)