Dialyzerized.

Makefile

@@ -1,48 +1,66 @@
-APP_NAME=libhowl
-APP_DIR=.
-OBJ=$(shell ls $(APP_DIR)/src/*.erl | sed -e 's/\.erl$$/.beam/' | sed -e 's;^$(APP_DIR)/src;$(APP_DIR)/ebin;g') $(shell ls $(APP_DIR)/src/*.app.src | sed -e 's/\.src$$//g' | sed -e 's;^$(APP_DIR)/src;$(APP_DIR)/ebin;g')
-DEPS=$(shell cat rebar.config  |sed -e 's/%.*//'| sed -e '/{\(\w\+\), [^,]\+, {\w\+, [^,]\+, {[^,]\+, [^}]\+}}},\?/!d' | sed -e 's;{\(\w\+\), [^,]\+, {\w\+, [^,]\+, {[^,]\+, [^}]\+}}},\?;deps/\1/rebar.config;')
-ERL=erl
-PA=$(shell pwd)/$(APP_DIR)/ebin 
-ERL_LIBS=`pwd`/deps/
-REBAR=./rebar
+REBAR = $(shell pwd)/rebar
 
-all: $(DEPS) $(OBJ)
+.PHONY: deps rel package
 
-test:
-	echo $(DEPS)
-	echo $(OBJ)
+all: deps compile
 
-doc: FORCE
-	$(REBAR) doc
-clean: FORCE
-	$(REBAR) clean
-	-rm *.beam erl_crash.dump
-	-rm -r rel/$(APP_NAME)
-	-rm rel/$(APP_NAME).tar.bz2
+compile:
+	$(REBAR) compile
 
-$(DEPS):
+deps:
 	$(REBAR) get-deps
-	$(REBAR) compile
 
-$(APP_DIR)/ebin/%.app: $(APP_DIR)/src/%.app.src
-	$(REBAR) compile
+clean:
+	$(REBAR) clean
 
-$(APP_DIR)/ebin/%.beam: $(APP_DIR)/src/%.erl
-	$(REBAR) compile
+distclean: clean 
+	$(REBAR) delete-deps
+
+test:
+	$(REBAR) skip_deps=true eunit
+
+###
+### Docs
+###
+docs:
+	$(REBAR) skip_deps=true doc
+
+##
+## Developer targets
+##
+
+xref:
+	$(REBAR) xref skip_deps=true
+
+
+##
+## Dialyzer
+##
+APPS = kernel stdlib sasl erts ssl tools os_mon runtime_tools crypto inets \
+	xmerl webtool snmp public_key mnesia eunit syntax_tools compiler
+COMBO_PLT = $(HOME)/.libhowl_combo_dialyzer_plt
+
+check_plt: deps compile
+	dialyzer --check_plt --plt $(COMBO_PLT) --apps $(APPS) \
+		deps/*/ebin ebin
 
-shell: all
-	ERL_LIBS="$(ERL_LIBS)" $(ERL) -pa $(PA) deps/*/ebin -s libhowl
-	[ -f *.beam ] && rm *.beam || true
-	[ -f erl_crash.dump ] && rm erl_crash.dump || true
+build_plt: deps compile
+	dialyzer --build_plt --output_plt $(COMBO_PLT) --apps $(APPS) \
+		deps/*/ebin ebin
 
-remove_trash:
-	-find . -name "*~" -exec rm {} \;.
-	-rm *.beam erl_crash.dump
-FORCE:
+dialyzer: deps compile
+	@echo
+	@echo Use "'make check_plt'" to check PLT prior to using this target.
+	@echo Use "'make build_plt'" to build PLT prior to using this target.
+	@echo
+	@sleep 1
+	dialyzer -Wno_return --plt $(COMBO_PLT) deps/*/ebin ebin | grep -v -f dialyzer.mittigate
 
-clean-docs:
-	-rm doc/*.html doc/*.png doc/*.css doc/edoc-info
 
-docs: clean-docs
-	@$(REBAR) doc skip_deps=true
+cleanplt:
+	@echo
+	@echo "Are you sure?  It takes about 1/2 hour to re-build."
+	@echo Deleting $(COMBO_PLT) in 5 seconds.
+	@echo
+	sleep 5
+	rm $(COMBO_PLT)

dialyzer.mittigate

@@ -0,0 +1,4 @@
+^lager_stdlib.erl:453:
+^lager_stdlib.erl:502:
+^lager_trunc_io.erl:74:
+^lager_trunc_io.erl:98:

rebar.config

@@ -3,5 +3,6 @@
 {deps,
  [
   {mdns_client_lib, ".*", {git, "https://github.com/Licenser/mdns_client_lib.git", {branch, master}}},
+  {fifo_spec, ".*", {git, "https://github.com/project-fifo/fifo_spec.git", {branch, master}}},
   {lager, ".*", {git, "git://github.com/basho/lager.git", {tag, "1.0.0"}}}
  ]}.

src/libhowl.erl

@@ -1,7 +1,7 @@
 -module(libhowl).
 
 -export([
-	 start/0, 
+	 start/0,
 	 servers/0
 	]).
 
@@ -43,10 +43,7 @@ servers() ->
 %% @end
 %%--------------------------------------------------------------------
 
--spec send(Channel::term(), Message::term()) -> 
-		  {ok, Token::{token, binary()}} |
-		  {error, not_found}.
-
+-spec send(Channel::term(), Message::term()) -> ok.
 send(Channel, Message) ->
     send({msg, Channel, Message}).
 
@@ -61,6 +58,6 @@ send(Channel, Message) ->
 %% @end
 %%--------------------------------------------------------------------
 
--spec send(Msg::term()) -> {ok, Reply::term()} | {error, no_server}.
+-spec send(Msg::term()) -> ok.
 send(Msg) ->
     libhowl_server:cast(Msg).