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# Copyright (c) 2013-2016, Loïc Hoguin <[email protected]>
# This file is part of erlang.mk and subject to the terms of the ISC License.
.PHONY: plt distclean-plt dialyze
# Configuration.
DIALYZER_PLT ?= $(CURDIR)/.$(PROJECT).plt
export DIALYZER_PLT
PLT_APPS ?=
DIALYZER_DIRS ?= --src -r $(wildcard src) $(ALL_APPS_DIRS)
DIALYZER_OPTS ?= -Werror_handling -Wunmatched_returns # -Wunderspecs
DIALYZER_PLT_OPTS ?=
# Core targets.
check:: dialyze
distclean:: distclean-plt
help::
$(verbose) printf "%s\n" "" \
"Dialyzer targets:" \
" plt Build a PLT file for this project" \
" dialyze Analyze the project using Dialyzer"
# Plugin-specific targets.
define filter_opts.erl
Opts = init:get_plain_arguments(),
{Filtered, _} = lists:foldl(fun
(O, {Os, true}) -> {[O|Os], false};
(O = "-D", {Os, _}) -> {[O|Os], true};
(O = [\\$$-, \\$$D, _ | _], {Os, _}) -> {[O|Os], false};
(O = "-I", {Os, _}) -> {[O|Os], true};
(O = [\\$$-, \\$$I, _ | _], {Os, _}) -> {[O|Os], false};
(O = "-pa", {Os, _}) -> {[O|Os], true};
(_, Acc) -> Acc
end, {[], false}, Opts),
io:format("~s~n", [string:join(lists:reverse(Filtered), " ")]),
halt().
endef
# DIALYZER_PLT is a variable understood directly by Dialyzer.
#
# We append the path to erts at the end of the PLT. This works
# because the PLT file is in the external term format and the
# function binary_to_term/1 ignores any trailing data.
$(DIALYZER_PLT): deps app
$(eval DEPS_LOG := $(shell test -f $(ERLANG_MK_TMP)/deps.log && \
while read p; do test -d $$p/ebin && echo $$p/ebin; done <$(ERLANG_MK_TMP)/deps.log))
$(verbose) dialyzer --build_plt $(DIALYZER_PLT_OPTS) --apps \
erts kernel stdlib $(PLT_APPS) $(OTP_DEPS) $(LOCAL_DEPS) $(DEPS_LOG) || test $$? -eq 2
$(verbose) $(ERL) -eval 'io:format("~n~s~n", [code:lib_dir(erts)]), halt().' >> $@
plt: $(DIALYZER_PLT)
distclean-plt:
$(gen_verbose) rm -f $(DIALYZER_PLT)
ifneq ($(wildcard $(DIALYZER_PLT)),)
dialyze: $(if $(filter --src,$(DIALYZER_DIRS)),,deps app)
$(verbose) if ! tail -n1 $(DIALYZER_PLT) | \
grep -q "^`$(ERL) -eval 'io:format("~s", [code:lib_dir(erts)]), halt().'`$$"; then \
rm $(DIALYZER_PLT); \
$(MAKE) plt; \
fi
else
dialyze: $(DIALYZER_PLT)
endif
$(verbose) dialyzer `$(ERL) \
-eval "$(subst $(newline),,$(call escape_dquotes,$(call filter_opts.erl)))" \
-extra $(ERLC_OPTS)` $(DIALYZER_DIRS) $(DIALYZER_OPTS) $(if $(wildcard ebin/),-pa ebin/)
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