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| author | Jean-Sébastien Pédron <[email protected]> | 2015-10-27 16:59:43 +0100 |
|---|---|---|
| committer | Loïc Hoguin <[email protected]> | 2016-10-28 13:16:50 +0300 |
| commit | 4717afcc480ae1ed1141d409af82417984a22aff (patch) | |
| tree | 54291b0f468a0cdadb7baab2f756c6a6eb9dd1c6 /plugins/erlydtl.mk | |
| parent | 34a5d5ca352bf06e6208b80bfb8dd32b8e9138c5 (diff) | |
| download | erlang.mk-4717afcc480ae1ed1141d409af82417984a22aff.tar.gz erlang.mk-4717afcc480ae1ed1141d409af82417984a22aff.tar.bz2 erlang.mk-4717afcc480ae1ed1141d409af82417984a22aff.zip | |
Use an intermediate timestamp file to know when to touch source files
The previous approach spawned a shell for every single source files. As
we disable parallel make jobs, this is very time consuming.
The new approach uses an intermediate timestamp file in $(ERLANG_MK_TMP)
to record the last modification of any of $(MAKEFILE_LIST) and touch
all source files in one command. Then, the .app file depends on this
timestamp file.
We test the existence of this timestamp file: if if doesn't exist, don't
touch source files, they will be built anyway.
$(PROJECT).d now depends directly on $(MAKEFILE_LIST); before, this
dependency was indirect through $(ERL_FILES). Also, once $(ERL_FILES)
were touched, we do the same with $(PROJECT).d because there is no need
to regen it because of this.
Diffstat (limited to 'plugins/erlydtl.mk')
| -rw-r--r-- | plugins/erlydtl.mk | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/plugins/erlydtl.mk b/plugins/erlydtl.mk index a8d4cea..4f04e14 100644 --- a/plugins/erlydtl.mk +++ b/plugins/erlydtl.mk @@ -24,10 +24,18 @@ DTL_NAMES = $(addsuffix $(DTL_SUFFIX),$(DTL_FILES:$(DTL_PATH)/%.dtl=%)) DTL_MODULES = $(if $(DTL_FULL_PATH),$(subst /,_,$(DTL_NAMES)),$(notdir $(DTL_NAMES))) BEAM_FILES += $(addsuffix .beam,$(addprefix ebin/,$(DTL_MODULES))) +ifneq ($(words $(DTL_FILES)),0) # Rebuild templates when the Makefile changes. -$(DTL_FILES): $(MAKEFILE_LIST) +$(ERLANG_MK_TMP)/last-makefile-change-erlydtl: $(MAKEFILE_LIST) + @mkdir -p $(ERLANG_MK_TMP) + @if test -f $@; then \ + touch $(DTL_FILES); \ + fi @touch $@ +ebin/$(PROJECT).app:: $(ERLANG_MK_TMP)/last-makefile-change-erlydtl +endif + define erlydtl_compile.erl [begin Module0 = case "$(strip $(DTL_FULL_PATH))" of |