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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
-module(rebar_prv_dialyzer).
-behaviour(provider).
-export([init/1,
do/1,
format_error/2]).
-include("rebar.hrl").
-define(PROVIDER, dialyzer).
-define(DEPS, [compile]).
%% ===================================================================
%% Public API
%% ===================================================================
-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
init(State) ->
State1 = rebar_state:add_provider(State, providers:create([{name, ?PROVIDER},
{module, ?MODULE},
{bare, false},
{deps, ?DEPS},
{example, "rebar dialyzer"},
{short_desc, "Run the Dialyzer analyzer on the project."},
{desc, ""},
{opts, []}])),
{ok, State1}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
?INFO("Dialyzer starting, this may take a while...", []),
BuildDir = rebar_state:get(State, base_dir, ?DEFAULT_BASE_DIR),
{ProjectPlt, _DepPlt} = get_plt_location(BuildDir),
Apps = rebar_state:project_apps(State),
?INFO("Doing plt for project apps...", []),
try
update_dep_plt(State, ProjectPlt, Apps),
WarningTypes = rebar_state:get(State, dialyzer_warnings, default_warnings()),
Paths = [filename:join(rebar_app_info:dir(App), "ebin") || App <- Apps],
Opts = [{analysis_type, succ_typings},
{from, byte_code},
{files_rec, Paths},
{warnings, WarningTypes},
{plts, [ProjectPlt]}],
case dialyzer:run(Opts) of
[] ->
{ok, State};
Warnings ->
[?WARN(dialyzer:format_warning(Warning), []) || Warning <- Warnings],
{ok, State}
end
catch
_:{dialyzer_error, Error} ->
{error, {?MODULE, {error_processing_apps, Error, Apps}}}
end.
-spec format_error(any(), rebar_state:t()) -> {iolist(), rebar_state:t()}.
format_error({error_processing_apps, Error, _Apps}, State) ->
{io_lib:format("Error in dialyzing apps: ~s", [Error]), State};
format_error(Reason, State) ->
{io_lib:format("~p", [Reason]), State}.
%% Internal functions
get_plt_location(BuildDir) ->
{filename:join([BuildDir, ".project.plt"]),
filename:join([BuildDir, ".deps.plt"])}.
update_dep_plt(_State, DepPlt, AppList) ->
Opts0 =
case filelib:is_file(DepPlt) of
true ->
?INFO("Plt is built, checking/updating ...", []),
[{analysis_type, plt_check},
{plts, [DepPlt]}];
false ->
?INFO("Building the plt, this is really going to "
"take a long time ...", []),
[{analysis_type, plt_build},
{output_plt, DepPlt}]
end,
Paths = [filename:join(rebar_app_info:dir(App), "ebin") || App <- AppList],
Opts = [{files_rec, Paths},
{from, byte_code}] ++ Opts0,
dialyzer:run(Opts).
default_warnings() ->
[no_return,
no_unused,
no_improper_lists,
no_fun_app,
no_match,
no_opaque,
no_fail_call,
error_handling,
race_conditions,
unmatched_returns,
underspecs].
|
