534fcd766e
You can dist the same file for multiple goals in multiple calls to dist-for-goals. The first call will establish the real copy rule, while the rest call just establishes the goals' dependency on the dest file. This enable uss to remove the bizarre $(if ..) enclosing the droid and sdk dist while avoiding make's multiple rules warning. Change-Id: I76475db76a9e6167e0e606dd582b54e80dfcdd22
79 lines
2.6 KiB
Makefile
79 lines
2.6 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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.PHONY: dist
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dist: ;
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dist_goal := $(strip $(filter dist,$(MAKECMDGOALS)))
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MAKECMDGOALS := $(strip $(filter-out dist,$(MAKECMDGOALS)))
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ifeq (,$(strip $(filter-out $(INTERNAL_MODIFIER_TARGETS),$(MAKECMDGOALS))))
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# The commandline was something like "make dist" or "make dist showcommands".
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# Add a dependency on a real target.
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dist: $(DEFAULT_GOAL)
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endif
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ifdef dist_goal
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# $(1): source file
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# $(2): destination file
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# $(3): goals that should copy the file
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#
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define copy-one-dist-file
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$(3): $(2)
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$(2): $(1)
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@echo "Dist: $$@"
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$$(copy-file-to-new-target-with-cp)
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endef
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# A global variable to remember all dist'ed src:dst pairs.
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# So if a src:dst is already dist'ed by another goal,
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# we should just establish the dependency and don't really call the
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# copy-one-dist-file to avoid multiple rules for the same target.
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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, pdk, ndk)
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# $(2): the dist files to add to those goals. If the file contains ':',
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# the text following the colon is the name that the file is copied
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# to under the dist directory. Subdirs are ok, and will be created
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# at copy time if necessary.
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define dist-for-goals
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$(foreach file,$(2), \
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$(eval fw := $(subst :,$(space),$(file))) \
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$(eval src := $(word 1,$(fw))) \
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$(eval dst := $(word 2,$(fw))) \
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$(eval dst := $(if $(dst),$(dst),$(notdir $(src)))) \
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$(if $(filter $(_all_dist_src_dst_pairs),$(src):$(dst)),\
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$(eval $(call add-dependency,$(1),$(DIST_DIR)/$(dst))),\
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$(eval $(call copy-one-dist-file,\
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$(src),$(DIST_DIR)/$(dst),$(1)))\
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$(eval _all_dist_src_dst_pairs += $(src):$(dst))\
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)\
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)
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endef
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else # !dist_goal
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# empty definition when not building dist
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define dist-for-goals
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endef
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endif # !dist_goal
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