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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/1]).
-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)),
do_tasks(Tasks, State).
do_tasks([], State) ->
{ok, State};
do_tasks([TaskArgs | Tail], State) ->
[TaskStr | Args] = string:tokens(TaskArgs, " "),
Task = list_to_atom(TaskStr),
State1 = rebar_state:set(State, task, Task),
State2 = rebar_state:command_args(State1, Args),
case rebar_core:process_command(State2, Task) of
{ok, State3} ->
do_tasks(Tail, State3);
Error ->
Error
end.
-spec format_error(any()) -> iolist().
format_error(Reason) ->
io_lib:format("~p", [Reason]).
args_to_tasks(Args) ->
[string:strip(T) || T <- string:tokens(string:join(Args, " "), ",")].
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