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+# Copyright (c) 2013, Loïc Hoguin <[email protected]>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# Project.
+
+PROJECT ?= $(notdir $(CURDIR))
+
+# Packages database file.
+
+PKG_FILE ?= $(CURDIR)/.erlang.mk.packages.v1
+export PKG_FILE
+
+PKG_FILE_URL ?= https://raw.github.com/extend/erlang.mk/master/packages.v1.txt
+
+define get_pkg_file
+	wget -O $(PKG_FILE) $(PKG_FILE_URL)
+endef
+
+# Verbosity and tweaks.
+
+V ?= 0
+
+appsrc_verbose_0 = @echo " APP   " $(PROJECT).app.src;
+appsrc_verbose = $(appsrc_verbose_$(V))
+
+erlc_verbose_0 = @echo " ERLC  " $(filter %.erl %.core,$(?F));
+erlc_verbose = $(erlc_verbose_$(V))
+
+xyrl_verbose_0 = @echo " XYRL  " $(filter %.xrl %.yrl,$(?F));
+xyrl_verbose = $(xyrl_verbose_$(V))
+
+dtl_verbose_0 = @echo " DTL   " $(filter %.dtl,$(?F));
+dtl_verbose = $(dtl_verbose_$(V))
+
+gen_verbose_0 = @echo " GEN   " $@;
+gen_verbose = $(gen_verbose_$(V))
+
+.PHONY: all clean-all app clean deps clean-deps docs clean-docs \
+	build-tests tests build-plt dialyze
+
+# Deps directory.
+
+DEPS_DIR ?= $(CURDIR)/deps
+export DEPS_DIR
+
+REBAR_DEPS_DIR = $(DEPS_DIR)
+export REBAR_DEPS_DIR
+
+ALL_DEPS_DIRS = $(addprefix $(DEPS_DIR)/,$(DEPS))
+ALL_TEST_DEPS_DIRS = $(addprefix $(DEPS_DIR)/,$(TEST_DEPS))
+
+# Application.
+
+ERLC_OPTS ?= -Werror +debug_info +warn_export_all +warn_export_vars \
+	+warn_shadow_vars +warn_obsolete_guard # +bin_opt_info +warn_missing_spec
+COMPILE_FIRST ?=
+COMPILE_FIRST_PATHS = $(addprefix src/,$(addsuffix .erl,$(COMPILE_FIRST)))
+
+all: deps app
+
+clean-all: clean clean-deps clean-docs
+	$(gen_verbose) rm -rf .$(PROJECT).plt $(DEPS_DIR) logs
+
+app: ebin/$(PROJECT).app
+	$(eval MODULES := $(shell find ebin -name \*.beam \
+		| sed 's/ebin\///;s/\.beam/,/' | sed '$$s/.$$//'))
+	$(appsrc_verbose) cat src/$(PROJECT).app.src \
+		| sed 's/{modules, \[\]}/{modules, \[$(MODULES)\]}/' \
+		> ebin/$(PROJECT).app
+
+define compile_erl
+	$(erlc_verbose) ERL_LIBS=$(DEPS_DIR) erlc -v $(ERLC_OPTS) -o ebin/ \
+		-pa ebin/ -I include/ $(COMPILE_FIRST_PATHS) $(1)
+endef
+
+define compile_xyrl
+	$(xyrl_verbose) erlc -v -o ebin/ $(1)
+	$(xyrl_verbose) erlc $(ERLC_OPTS) -o ebin/ ebin/*.erl
+	@rm ebin/*.erl
+endef
+
+define compile_dtl
+	$(dtl_verbose) erl -noshell -pa ebin/ $(DEPS_DIR)/erlydtl/ebin/ -eval ' \
+		Compile = fun(F) -> \
+			Module = list_to_atom( \
+				string:to_lower(filename:basename(F, ".dtl")) ++ "_dtl"), \
+			erlydtl_compiler:compile(F, Module, [{out_dir, "ebin/"}]) \
+		end, \
+		_ = [Compile(F) || F <- string:tokens("$(1)", " ")], \
+		init:stop()'
+endef
+
+ebin/$(PROJECT).app: src/*.erl $(wildcard src/*.core) \
+		$(wildcard src/*.xrl) $(wildcard src/*.yrl) \
+		$(wildcard templates/*.dtl)
+	@mkdir -p ebin/
+	$(if $(strip $(filter %.erl %.core,$?)), \
+		$(call compile_erl,$(filter %.erl %.core,$?)))
+	$(if $(strip $(filter %.xrl %.yrl,$?)), \
+		$(call compile_xyrl,$(filter %.xrl %.yrl,$?)))
+	$(if $(strip $(filter %.dtl,$?)), \
+		$(call compile_dtl,$(filter %.dtl,$?)))
+
+clean:
+	$(gen_verbose) rm -rf ebin/ test/*.beam erl_crash.dump
+
+# Dependencies.
+
+define get_dep
+	@mkdir -p $(DEPS_DIR)
+ifeq (,$(findstring pkg://,$(word 1,$(dep_$(1)))))
+	git clone -n -- $(word 1,$(dep_$(1))) $(DEPS_DIR)/$(1)
+else
+	@if [ ! -f $(PKG_FILE) ]; then $(call get_pkg_file); fi
+	git clone -n -- `awk 'BEGIN { FS = "\t" }; \
+		$$$$1 == "$(subst pkg://,,$(word 1,$(dep_$(1))))" { print $$$$2 }' \
+		$(PKG_FILE)` $(DEPS_DIR)/$(1)
+endif
+	cd $(DEPS_DIR)/$(1) ; git checkout -q $(word 2,$(dep_$(1)))
+endef
+
+define dep_target
+$(DEPS_DIR)/$(1):
+	$(call get_dep,$(1))
+endef
+
+$(foreach dep,$(DEPS),$(eval $(call dep_target,$(dep))))
+
+deps: $(ALL_DEPS_DIRS)
+	@for dep in $(ALL_DEPS_DIRS) ; do \
+		if [ -f $$dep/Makefile ] ; then \
+			$(MAKE) -C $$dep ; \
+		else \
+			echo "include $(CURDIR)/erlang.mk" | $(MAKE) -f - -C $$dep ; \
+		fi ; \
+	done
+
+clean-deps:
+	@for dep in $(ALL_DEPS_DIRS) ; do $(MAKE) -C $$dep clean; done
+
+# Documentation.
+
+docs: clean-docs
+	$(gen_verbose) erl -noshell \
+		-eval 'edoc:application($(PROJECT), ".", []), init:stop().'
+
+clean-docs:
+	$(gen_verbose) rm -f doc/*.css doc/*.html doc/*.png doc/edoc-info
+
+# Tests.
+
+$(foreach dep,$(TEST_DEPS),$(eval $(call dep_target,$(dep))))
+
+build-test-deps: $(ALL_TEST_DEPS_DIRS)
+	@for dep in $(ALL_TEST_DEPS_DIRS) ; do $(MAKE) -C $$dep; done
+
+build-tests: build-test-deps
+	$(gen_verbose) ERL_LIBS=$(DEPS_DIR) erlc -v $(ERLC_OPTS) -o test/ \
+		$(wildcard test/*.erl test/*/*.erl) -pa ebin/
+
+CT_RUN = ct_run \
+	-no_auto_compile \
+	-noshell \
+	-pa ebin $(DEPS_DIR)/*/ebin \
+	-dir test \
+	-logdir logs
+#	-cover test/cover.spec
+
+CT_SUITES ?=
+CT_SUITES_FULL = $(addsuffix _SUITE,$(CT_SUITES))
+
+tests: ERLC_OPTS += -DTEST=1 +'{parse_transform, eunit_autoexport}'
+tests: clean deps app build-tests
+	@mkdir -p logs/
+	@$(CT_RUN) -suite $(CT_SUITES_FULL)
+	$(gen_verbose) rm -f test/*.beam
+
+# Dialyzer.
+
+PLT_APPS ?=
+DIALYZER_OPTS ?= -Werror_handling -Wrace_conditions \
+	-Wunmatched_returns # -Wunderspecs
+
+build-plt: deps app
+	@dialyzer --build_plt --output_plt .$(PROJECT).plt \
+		--apps erts kernel stdlib $(PLT_APPS) $(ALL_DEPS_DIRS)
+
+dialyze:
+	@dialyzer --src src --plt .$(PROJECT).plt --no_native $(DIALYZER_OPTS)
+
+# Packages.
+
+$(PKG_FILE):
+	@$(call get_pkg_file)
+
+pkg-list: $(PKG_FILE)
+	@cat $(PKG_FILE) | awk 'BEGIN { FS = "\t" }; { print \
+		"Name:\t\t" $$1 "\n" \
+		"Repository:\t" $$2 "\n" \
+		"Website:\t" $$3 "\n" \
+		"Description:\t" $$4 "\n" }'
+
+ifdef q
+pkg-search: $(PKG_FILE)
+	@cat $(PKG_FILE) | grep -i ${q} | awk 'BEGIN { FS = "\t" }; { print \
+		"Name:\t\t" $$1 "\n" \
+		"Repository:\t" $$2 "\n" \
+		"Website:\t" $$3 "\n" \
+		"Description:\t" $$4 "\n" }'
+else
+pkg-search:
+	@echo "Usage: make pkg-search q=STRING"
+endif