41 lines
1.8 KiB
Makefile
Executable File
41 lines
1.8 KiB
Makefile
Executable File
# Copyright (C) 2015 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Check to see if we need to force proguard to re-run, typically after using tapas to
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# switch to/from eng builds. This is determined by comparing the flag files used in the previous
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# build. If the flag files have changed, proguard is rerun.
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# If the LOCAL_MODULE being setup isn't a build target, then don't run ForceProguard.
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ifneq (,$(findstring $(LOCAL_MODULE), $(TARGET_BUILD_APPS)))
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PREVIOUS_FLAG_FILES_USED_DIR := $(call local-intermediates-dir,1)
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# If the local intermediates dir doesn't exist, ForceProguard won't work.
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ifneq ($(wildcard $(PREVIOUS_FLAG_FILES_USED_DIR)),)
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PREVIOUS_FLAG_FILES_USED_FILE := $(PREVIOUS_FLAG_FILES_USED_DIR)/previous_proguard_flag_files
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PREVIOUS_FLAG_FILES_USED := $(if $(wildcard $(PREVIOUS_FLAG_FILES_USED_FILE)), \
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$(shell cat $(PREVIOUS_FLAG_FILES_USED_FILE)))
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ifneq ($(strip $(PREVIOUS_FLAG_FILES_USED)), $(strip $(LOCAL_PROGUARD_FLAG_FILES)))
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$(info *** Flag files used for proguard have changed; forcing proguard to rerun.)
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$(shell touch $(LOCAL_PATH)/proguard.flags)
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$(shell echo $(LOCAL_PROGUARD_FLAG_FILES) > $(PREVIOUS_FLAG_FILES_USED_FILE))
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endif
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endif
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# End local intermediates directory existence check
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endif
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# End LOCAL_MODULE is a build target check
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