0b907f3944
It turns out dist goals do not map well to units of code distributed. They often build a combination of files to distribute and files for internal use only. This change creates license texts and lists of projects to share for individual files in dist instead of for dist goals. If a distribution needs the license texts for part of a dist file or for a combination of multiple files, whoever is distributing will have to create a suitable text notice using `gen_notice{}` or `testnotice` and include it among the dist files for the goal using `dist-for-goals` or equivalent. Bug: 151177513 Bug: 210912771 Bug: 235333302 Bug: 232138105 Bug: 235302632 Test: m cts dist Test: m droid dist Test: tapas google-tradefed-all && m dist Change-Id: Id78f032575a2ac1a3cc70643b3ae4d2e6c32da04
212 lines
9 KiB
Makefile
212 lines
9 KiB
Makefile
#
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# Copyright (C) 2007 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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#
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# When specifying "dist", the user has asked that we copy the important
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# files from this build into DIST_DIR.
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# list of all goals that depend on any dist files
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_all_dist_goals :=
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# pairs of goal:distfile
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_all_dist_goal_output_pairs :=
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# pairs of srcfile:distfile
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_all_dist_src_dst_pairs :=
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# Other parts of the system should use this function to associate
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# certain files with certain goals. When those goals are built
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# and "dist" is specified, the marked files will be copied to DIST_DIR.
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#
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# $(1): a list of goals (e.g. droid, sdk, ndk). These must be PHONY
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# $(2): the dist files to add to those goals. If the file contains ':',
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# the text following the colon is the name that the file is copied
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# to under the dist directory. Subdirs are ok, and will be created
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# at copy time if necessary.
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define dist-for-goals
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$(if $(strip $(2)), \
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$(eval _all_dist_goals += $$(1))) \
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$(foreach file,$(2), \
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$(eval src := $(call word-colon,1,$(file))) \
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$(eval dst := $(call word-colon,2,$(file))) \
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$(if $(dst),,$(eval dst := $$(notdir $$(src)))) \
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$(eval _all_dist_src_dst_pairs += $$(src):$$(dst)) \
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$(foreach goal,$(1), \
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$(eval _all_dist_goal_output_pairs += $$(goal):$$(dst))))
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endef
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.PHONY: shareprojects
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define __share-projects-rule
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$(1) : PRIVATE_TARGETS := $(2)
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$(1): $(2) $(COMPLIANCE_LISTSHARE)
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$(hide) rm -f $$@
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mkdir -p $$(dir $$@)
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$$(if $$(strip $$(PRIVATE_TARGETS)),OUT_DIR=$(OUT_DIR) $(COMPLIANCE_LISTSHARE) -o $$@ $$(PRIVATE_TARGETS),touch $$@)
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endef
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# build list of projects to share in $(1) for meta_lic in $(2)
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#
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# $(1): the intermediate project sharing file
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# $(2): the license metadata to base the sharing on
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define _share-projects-rule
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$(eval $(call __share-projects-rule,$(1),$(2)))
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endef
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.PHONY: alllicensetexts
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define __license-texts-rule
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$(2) : PRIVATE_GOAL := $(1)
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$(2) : PRIVATE_TARGETS := $(3)
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$(2) : PRIVATE_ROOTS := $(4)
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$(2) : PRIVATE_ARGUMENT_FILE := $(call intermediates-dir-for,METAPACKAGING,licensetexts)/$(2)/arguments
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$(2): $(3) $(TEXTNOTICE)
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$(hide) rm -f $$@
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mkdir -p $$(dir $$@)
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mkdir -p $$(dir $$(PRIVATE_ARGUMENT_FILE))
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$$(if $$(strip $$(PRIVATE_TARGETS)),$$(call dump-words-to-file,\
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-product="$$(PRIVATE_GOAL)" -title="$$(PRIVATE_GOAL)" \
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$$(addprefix -strip_prefix ,$$(PRIVATE_ROOTS)) \
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-strip_prefix=$(PRODUCT_OUT)/ -strip_prefix=$(HOST_OUT)/\
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$$(PRIVATE_TARGETS),\
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$$(PRIVATE_ARGUMENT_FILE)))
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$$(if $$(strip $$(PRIVATE_TARGETS)),OUT_DIR=$(OUT_DIR) $(TEXTNOTICE) -o $$@ @$$(PRIVATE_ARGUMENT_FILE),touch $$@)
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endef
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# build list of projects to share in $(2) for meta_lic in $(3) for dist goals $(1)
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# Strip `out/dist/` used as proxy for 'DIST_DIR'
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#
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# $(1): the name of the dist goals
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# $(2): the intermediate project sharing file
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# $(3): the license metadata to base the sharing on
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define _license-texts-rule
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$(eval $(call __license-texts-rule,$(1),$(2),$(3),out/dist/))
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endef
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###########################################################
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## License metadata build rule for dist target $(1) with meta_lic $(2) copied from $(3)
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###########################################################
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define _dist-target-license-metadata-rule
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$(strip $(eval _meta :=$(2)))
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$(strip $(eval _dep:=))
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# 0p is the indicator for a non-copyrightable file where no party owns the copyright.
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# i.e. pure data with no copyrightable expression.
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# If all of the sources are 0p and only 0p, treat the copied file as 0p. Otherwise, all
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# of the sources must either be 0p or originate from a single metadata file to copy.
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$(strip $(foreach s,$(strip $(3)),\
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$(eval _dmeta:=$(ALL_TARGETS.$(s).META_LIC))\
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$(if $(strip $(_dmeta)),\
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$(if $(filter-out 0p,$(_dep)),\
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$(if $(filter-out $(_dep) 0p,$(_dmeta)),\
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$(error cannot copy target from multiple modules: $(1) from $(_dep) and $(_dmeta)),\
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$(if $(filter 0p,$(_dep)),$(eval _dep:=$(_dmeta)))),\
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$(eval _dep:=$(_dmeta))\
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),\
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$(eval TARGETS_MISSING_LICENSE_METADATA += $(s) $(1)))))
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ifeq (0p,$(strip $(_dep)))
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# Not copyrightable. No emcumbrances, no license text, no license kind etc.
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$(_meta): PRIVATE_CONDITIONS := unencumbered
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$(_meta): PRIVATE_SOURCES := $(3)
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$(_meta): PRIVATE_INSTALLED := $(1)
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# use `$(1)` which is the unique and relatively short `out/dist/$(target)`
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$(_meta): PRIVATE_ARGUMENT_FILE := $(call intermediates-dir-for,METAPACKAGING,notice)/$(1)/arguments
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$(_meta): $(BUILD_LICENSE_METADATA)
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$(_meta) :
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rm -f $$@
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mkdir -p $$(dir $$@)
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mkdir -p $$(dir $$(PRIVATE_ARGUMENT_FILE))
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$$(call dump-words-to-file,\
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$$(addprefix -c ,$$(PRIVATE_CONDITIONS))\
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$$(addprefix -s ,$$(PRIVATE_SOURCES))\
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$$(addprefix -t ,$$(PRIVATE_TARGETS))\
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$$(addprefix -i ,$$(PRIVATE_INSTALLED)),\
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$$(PRIVATE_ARGUMENT_FILE))
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OUT_DIR=$(OUT_DIR) $(BUILD_LICENSE_METADATA) \
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@$$(PRIVATE_ARGUMENT_FILE) \
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-o $$@
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else ifneq (,$(strip $(_dep)))
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# Not a missing target, copy metadata and `is_container` etc. from license metadata file `$(_dep)`
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$(_meta): PRIVATE_DEST_TARGET := $(1)
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$(_meta): PRIVATE_SOURCE_TARGETS := $(3)
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$(_meta): PRIVATE_SOURCE_METADATA := $(_dep)
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# use `$(1)` which is the unique and relatively short `out/dist/$(target)`
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$(_meta): PRIVATE_ARGUMENT_FILE := $(call intermediates-dir-for,METAPACKAGING,copynotice)/$(1)/arguments
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$(_meta) : $(_dep) $(COPY_LICENSE_METADATA)
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rm -f $$@
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mkdir -p $$(dir $$@)
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mkdir -p $$(dir $$(PRIVATE_ARGUMENT_FILE))
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$$(call dump-words-to-file,\
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$$(addprefix -i ,$$(PRIVATE_DEST_TARGET))\
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$$(addprefix -s ,$$(PRIVATE_SOURCE_TARGETS))\
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$$(addprefix -d ,$$(PRIVATE_SOURCE_METADATA)),\
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$$(PRIVATE_ARGUMENT_FILE))
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OUT_DIR=$(OUT_DIR) $(COPY_LICENSE_METADATA) \
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@$$(PRIVATE_ARGUMENT_FILE) \
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-o $$@
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endif
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endef
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# use `out/dist/` as a proxy for 'DIST_DIR'
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define _add_projects_to_share
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$(strip $(eval _mdir := $(call intermediates-dir-for,METAPACKAGING,meta)/out/dist)) \
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$(strip $(eval _idir := $(call intermediates-dir-for,METAPACKAGING,shareprojects))) \
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$(strip $(eval _tdir := $(call intermediates-dir-for,METAPACKAGING,licensetexts))) \
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$(strip $(eval _allt := $(sort $(foreach goal,$(_all_dist_goal_output_pairs),$(call word-colon,2,$(goal)))))) \
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$(foreach target,$(_allt), \
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$(eval _goals := $(sort $(foreach dg,$(filter %:$(target),$(_all_dist_goal_output_pairs)),$(call word-colon,1,$(dg))))) \
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$(eval _srcs := $(sort $(foreach sdp,$(filter %:$(target),$(_all_dist_src_dst_pairs)),$(call word-colon,1,$(sdp))))) \
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$(eval $(call _dist-target-license-metadata-rule,out/dist/$(target),$(_mdir)/out/dist/$(target).meta_lic,$(_srcs))) \
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$(eval _f := $(_idir)/$(target).shareprojects) \
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$(eval _n := $(_tdir)/$(target).txt) \
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$(eval $(call dist-for-goals,$(_goals),$(_f):shareprojects/$(target).shareprojects)) \
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$(eval $(call dist-for-goals,$(_goals),$(_n):licensetexts/$(target).txt)) \
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$(eval $(call _share-projects-rule,$(_f),$(foreach t, $(filter-out $(TARGETS_MISSING_LICENSE_METADATA),out/dist/$(target)),$(_mdir)/$(t).meta_lic))) \
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$(eval $(call _license-texts-rule,$(_goals),$(_n),$(foreach t,$(filter-out $(TARGETS_MISSING_LICENSE_METADATA),out/dist/$(target)),$(_mdir)/$(t).meta_lic))) \
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)
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endef
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#------------------------------------------------------------------
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# To be used at the end of the build to collect all the uses of
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# dist-for-goals, and write them into a file for the packaging step to use.
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# $(1): The file to write
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define dist-write-file
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$(strip \
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$(call _add_projects_to_share)\
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$(if $(strip $(ANDROID_REQUIRE_LICENSE_METADATA)),\
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$(foreach target,$(sort $(TARGETS_MISSING_LICENSE_METADATA)),$(warning target $(target) missing license metadata))\
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$(if $(strip $(TARGETS_MISSING_LICENSE_METADATA)),\
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$(if $(filter true error,$(ANDROID_REQUIRE_LICENSE_METADATA)),\
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$(error $(words $(sort $(TARGETS_MISSING_LICENSE_METADATA))) targets need license metadata))))\
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$(foreach t,$(sort $(ALL_NON_MODULES)),$(call record-missing-non-module-dependencies,$(t))) \
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$(eval $(call report-missing-licenses-rule)) \
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$(eval $(call report-all-notice-library-names-rule)) \
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$(KATI_obsolete_var dist-for-goals,Cannot be used after dist-write-file) \
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$(foreach goal,$(sort $(_all_dist_goals)), \
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$(eval $$(goal): _dist_$$(goal))) \
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$(shell mkdir -p $(dir $(1))) \
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$(file >$(1).tmp, \
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DIST_GOAL_OUTPUT_PAIRS := $(sort $(_all_dist_goal_output_pairs)) \
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$(newline)DIST_SRC_DST_PAIRS := $(sort $(_all_dist_src_dst_pairs))) \
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$(shell if ! cmp -s $(1).tmp $(1); then \
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mv $(1).tmp $(1); \
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else \
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rm $(1).tmp; \
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fi))
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endef
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.KATI_READONLY := dist-for-goals dist-write-file
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