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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
-module(rebar_prv_do).
-behaviour(provider).
-export([init/1,
do/1,
format_error/2]).
-include("rebar.hrl").
-define(PROVIDER, do).
-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, false},
{deps, ?DEPS},
{example, "rebar3 do <task1>, <task2>, ..."},
{short_desc, "Higher order provider for running multiple tasks in a sequence."},
{desc, ""},
{opts, []}])),
{ok, State1}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
Tasks = args_to_tasks(rebar_state:command_args(State)),
lists:foldl(fun(TaskArgs, {ok, StateAcc}) ->
[TaskStr | Args] = string:tokens(TaskArgs, " "),
Task = list_to_atom(TaskStr),
StateAcc1 = rebar_state:set(StateAcc, task, Task),
StateAcc2 = rebar_state:command_args(StateAcc1, Args),
rebar_core:process_command(StateAcc2, Task)
end, {ok, State}, Tasks).
-spec format_error(any(), rebar_state:t()) -> {iolist(), rebar_state:t()}.
format_error(Reason, State) ->
{io_lib:format("~p", [Reason]), State}.
args_to_tasks(Args) ->
[string:strip(T) || T <- string:tokens(string:join(Args, " "), ",")].
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