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ada205b1a7
- Move helpers functions into build/helpers.mak - Move official warning into official targets only
64 lines
2.2 KiB
Makefile
64 lines
2.2 KiB
Makefile
# Helper functions to work with variants
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# Make variants_test for an example
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define available_variants_in
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$(sort $(patsubst +%,%,$(filter +%,$(subst :, ,$(1)))))
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endef
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define without_any_variant_specifier
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$(filter-out $(foreach variant,$(call available_variants_in,$(1)),%:-$(variant) %:+$(variant)),$(1))
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endef
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define with_variant_specifier_matching
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$(foreach variant,$(3),$(patsubst %:$(1)$(variant),%,$(filter %:$(1)$(variant),$(2))))
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endef
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define without_any_variant_specifier_matching
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$(filter-out \
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$(call with_variant_specifier_matching,$(1),$(2),$(3)), \
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$(foreach variant,$(call available_variants_in,$(2)),$(call with_variant_specifier_matching,$(1),$(2),$(variant))) \
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)
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endef
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# Return files in $(1) that match the variant $(2)
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define filter_variants
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$(sort \
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$(call without_any_variant_specifier,$(1)) \
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$(call with_variant_specifier_matching,+,$(1),$(2)) \
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$(call without_any_variant_specifier_matching,-,$(1),$(2)) \
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)
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endef
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# Return all files in $(1) no matter their variant
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define any_variant
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$(sort $(filter-out -%,$(filter-out +%,$(subst :, ,$(1)))))
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endef
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# Examples
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variants_test_src = base.cpp
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variants_test_src += color/green.cpp:+green
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variants_test_src += color/red.cpp:+red
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variants_test_src += color/blue.cpp:-red
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variants_test_src += color/blue.cpp:-green
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variants_test_src += engine/fast.cpp:+nitro
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variants_test_src += engine/slow.cpp:-nitro
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.PHONY: variants_test
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variants_test:
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$(info AVAILABLE_VARIANTS_IN)
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$(info --result: $(call available_variants_in,$(variants_test_src),))
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$(info --expected: green nitro red)
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$(info FILTER_VARIANTS)
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$(info --result: $(call filter_variants,$(variants_test_src),))
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$(info --expected: base.cpp color/blue.cpp engine/slow.cpp)
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$(info FILTER_VARIANTS red)
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$(info --result: $(call filter_variants,$(variants_test_src),red))
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$(info --expected: base.cpp color/red.cpp engine/slow.cpp)
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$(info FILTER_VARIANTS green speed)
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$(info --result: $(call filter_variants,$(variants_test_src),green nitro))
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$(info --expected: base.cpp color/green.cpp engine/fast.cpp)
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$(info ANY_VARIANT)
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$(info --result: $(call any_variant,$(variants_test_src)))
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$(info --expected: base.cpp color/blue.cpp color/green.cpp color/red.cpp engine/fast.cpp engine/slow.cpp)
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