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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
-module(rebar_prv_app_discovery).
-behaviour(provider).
-export([init/1,
do/1,
format_error/1]).
-include("rebar.hrl").
-include_lib("providers/include/providers.hrl").
-define(PROVIDER, app_discovery).
-define(DEPS, []).
%% ===================================================================
%% 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, true},
{deps, ?DEPS},
{example, ""},
{short_desc, ""},
{desc, ""},
{opts, []}])),
{ok, State1}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
LibDirs = rebar_dir:lib_dirs(State),
try
State1 = rebar_app_discover:do(State, LibDirs),
{ok, State1}
catch
throw:{error, Error} ->
?PRV_ERROR(Error)
end.
-spec format_error(any()) -> iolist().
format_error({multiple_app_files, Files}) ->
io_lib:format("Multiple app files found in one app dir: ~s", [string:join(Files, " and ")]);
format_error({invalid_app_file, File, Reason}) ->
case Reason of
{Line, erl_parse, Description} ->
io_lib:format("Invalid app file ~s at line ~b: ~p",
[File, Line, lists:flatten(Description)]);
_ ->
io_lib:format("Invalid app file ~s: ~p", [File, Reason])
end;
%% Provide a slightly more informative error message for consult of app file failure
format_error({rebar_file_utils, {bad_term_file, AppFile, Reason}}) ->
io_lib:format("Error in app file ~s: ~s", [rebar_dir:make_relative_path(AppFile,
rebar_dir:get_cwd()),
file:format_error(Reason)]);
format_error(Reason) ->
io_lib:format("~p", [Reason]).
|
