core/notice_files.mk

###########################################################
## Track NOTICE files
###########################################################

notice_file:=$(shell find $(LOCAL_PATH) -maxdepth 1 -name NOTICE)

ifneq ($(strip $(notice_file)),)

# This relies on the name of the directory in PRODUCT_OUT matching where
# it's installed on the target - i.e. system, data, etc.  This does
# not work for root and isn't exact, but it's probably good enough for
# compliance.
# Includes the leading slash
ifdef LOCAL_INSTALLED_MODULE
  module_installed_filename := $(patsubst $(PRODUCT_OUT)%,%,$(LOCAL_INSTALLED_MODULE))
else
  # This module isn't installable
  ifeq ($(LOCAL_MODULE_CLASS),STATIC_LIBRARIES)
    # Stick the static libraries with the dynamic libraries.
    # We can't use xxx_OUT_STATIC_LIBRARIES because it points into
    # device-obj or host-obj.
    module_installed_filename := \
    	$(patsubst $(PRODUCT_OUT)%,%,$($(my_prefix)OUT_SHARED_LIBRARIES))/$(notdir $(LOCAL_BUILT_MODULE))
  else
    ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
      # Stick the static java libraries with the regular java libraries.
      module_installed_filename := \
	  $(patsubst $(PRODUCT_OUT)%,%,$($(my_prefix)OUT_JAVA_LIBRARIES))/$(notdir $(LOCAL_BUILT_MODULE))
    else
      $(error Cannot determine where to install NOTICE file for $(LOCAL_MODULE))
    endif # JAVA_LIBRARIES
  endif # STATIC_LIBRARIES
endif

# In case it's actually a host file
module_installed_filename := $(patsubst $(HOST_OUT)%,%,$(module_installed_filename))

installed_notice_file := $($(my_prefix)OUT_NOTICE_FILES)/src/$(module_installed_filename).txt

$(installed_notice_file): PRIVATE_INSTALLED_MODULE := $(module_installed_filename)

$(installed_notice_file): $(notice_file)
	@echo Notice file: $< -- $@
	$(hide) mkdir -p $(dir $@)
	$(hide) cat $< >> $@

ifdef LOCAL_INSTALLED_MODULE
# Make LOCAL_INSTALLED_MODULE depend on NOTICE files if they exist
# libraries so they get installed along with it.  Make it an order-only
# dependency so we don't re-install a module when the NOTICE changes.
$(LOCAL_INSTALLED_MODULE): | $(installed_notice_file)
endif

else
# NOTICE file does not exist
installed_notice_file :=
endif

# Create a predictable, phony target to build this notice file.
# Define it even if the notice file doesn't exist so that other
# modules can depend on it.
notice_target := NOTICE-$(if \
    $(LOCAL_IS_HOST_MODULE),HOST,TARGET)-$(LOCAL_MODULE_CLASS)-$(LOCAL_MODULE)
.PHONY: $(notice_target)
$(notice_target): $(installed_notice_file)