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8136383: Improve make utilities containing and not-containing

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Reviewed-by: ihse
This commit is contained in:
Erik Joelsson 2015-09-15 18:00:21 +02:00
parent 9969836a33
commit 8feb75af0b
2 changed files with 43 additions and 6 deletions
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18
make/common/MakeBase.gmk
View File

@ -567,16 +567,22 @@ else
endif endif
################################################################################ ################################################################################
# Convenience functions for working around make's limitations with $(filter ).
containing = \
$(strip $(foreach v,$(strip $2),$(if $(findstring $(strip $1),$v),$v)))
not-containing = \
$(strip $(foreach v,$(strip $2),$(if $(findstring $(strip $1),$v),,$v)))
# Filter out duplicate sub strings while preserving order. Keeps the first occurance. # Filter out duplicate sub strings while preserving order. Keeps the first occurance.
uniq = \ uniq = \
$(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1))) $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
# Returns all whitespace-separated words in $2 where at least one of the
# whitespace-separated words in $1 is a substring.
containing = \
$(strip \
$(foreach v,$(strip $2),\
$(call uniq,$(foreach p,$(strip $1),$(if $(findstring $p,$v),$v)))))
# Returns all whitespace-separated words in $2 where none of the
# whitespace-separated words in $1 is a substring.
not-containing = \
$(strip $(filter-out $(call containing,$1,$2),$2))
# Return a list of all string elements that are duplicated in $1. # Return a list of all string elements that are duplicated in $1.
dups = \ dups = \
$(strip $(foreach v, $(sort $1), $(if $(filter-out 1, \ $(strip $(foreach v, $(sort $1), $(if $(filter-out 1, \

31
test/make/TestMakeBase.gmk
View File

@ -72,6 +72,37 @@ $(ESCAPE_DOLLAR_DIR)/_escape_dollar: $(DEPS)
TEST_TARGETS += $(ESCAPE_DOLLAR_DIR)/_escape_dollar TEST_TARGETS += $(ESCAPE_DOLLAR_DIR)/_escape_dollar
################################################################################
# Test containing and not-containing
CONT_LIST := foo bar baz foobar foobaz
# Param 1 - string to look for
# Param 2 - expected result
define TestContaining
value := $$(call containing, $1, $(CONT_LIST))
ifneq ($$(value), $2)
$$(info (call containing, $1, $(CONT_LIST)))
$$(error result >$$(value)<, expected >$2<)
endif
endef
$(eval $(call TestContaining,bar,bar foobar))
$(eval $(call TestContaining,foo bar,foo bar foobar foobaz))
# Param 1 - string to look for
# Param 2 - expected result
define TestNotContaining
value := $$(call not-containing, $1, $(CONT_LIST))
ifneq ($$(value), $2)
$$(info (call not-containing, $1, $(CONT_LIST)))
$$(error result >$$(value)<, expected >$2<)
endif
endef
$(eval $(call TestNotContaining,bar,foo baz foobaz))
$(eval $(call TestNotContaining,foo bar,baz))
################################################################################ ################################################################################
# Test Equals # Test Equals