Assume I have such hierarchy:
src/module1/mod1.c
src/module2/mod2.c
src/my.c
With $(wildcard src/*) I can get
src/module1 src/module2 src/my.c
I need split this list into 2 list, one with directory only:
src/module1 src/module2
and one with file only:
src/my.c
I know solution with $(shell ...), but this require creating external
process.
I know solution based on source files naming: they contain dot.
This can not work on dirs with dot in names.
PS.
When I wrote this mail I found solution!
Between built in GNU Make functions only few
can communicate with reality (file system).
These are
shell, wildcard, realpath
shell I dislike for performance.
wildcard get existing files by pattern.
realpath get existing files.
If $(dir) exist then $(dir)/. also exist.
If $(file) exist then $(file)/. does not exist. So
filter-dir = $(foreach item,$1,$(if $(realpath $(wildcard
$(item)/.)),$(item)))
filter-file = $(foreach item,$1,$(if $(realpath $(wildcard
$(item)/.)),,$(item)))
var = $(wildcard src/*)
$(error $(call filter-dir,$(var))) # this line for test
$(error $(call filter-file,$(var))) # this line for test
realpath you can replace with widlcard.
--
С уважением, Александр Гавенко.
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