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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
-module(rebar_prv_as).
-behaviour(provider).
-export([init/1,
do/1,
format_error/1]).
-include("rebar.hrl").
-define(PROVIDER, as).
-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 as <profile1>,<profile2>,... <task1>, <task2>, ..."},
{short_desc, "Higher order provider for running multiple tasks in a sequence as a certain profiles."},
{desc, ""},
{opts, [{profile, undefined, undefined, string, "Profiles to run as."}]}])),
{ok, State1}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
{Profiles, Tasks} = args_to_profiles_and_tasks(rebar_state:command_args(State)),
case Profiles of
[] ->
{error, "At least one profile must be specified when using `as`"};
_ ->
State1 = rebar_state:apply_profiles(State, [list_to_atom(X) || X <- Profiles]),
rebar_prv_do:do_tasks(Tasks, State1)
end.
-spec format_error(any()) -> iolist().
format_error(Reason) ->
io_lib:format("~p", [Reason]).
args_to_profiles_and_tasks(Args) ->
first_profile(Args).
first_profile([]) -> {[], []};
first_profile([ProfileList|Rest]) ->
case re:split(ProfileList, ",", [{return, list}, {parts, 2}]) of
%% `foo, bar`
[P, ""] -> profiles(Rest, [P]);
%% `foo,bar`
[P, More] -> profiles([More] ++ Rest, [P]);
%% `foo`
[P] -> comma_or_end(Rest, [P])
end.
profiles([], Acc) -> {lists:reverse(Acc), rebar_utils:args_to_tasks([])};
profiles([ProfileList|Rest], Acc) ->
case re:split(ProfileList, ",", [{return, list}, {parts, 2}]) of
%% `foo, bar`
[P, ""] -> profiles(Rest, [P|Acc]);
%% `foo,bar`
[P, More] -> profiles([More] ++ Rest, [P|Acc]);
%% `foo`
[P] -> comma_or_end(Rest, [P|Acc])
end.
%% `, foo...`
comma_or_end([","|Rest], Acc) ->
profiles(Rest, Acc);
%% `,foo...`
comma_or_end(["," ++ Profile|Rest], Acc) ->
profiles([Profile|Rest], Acc);
comma_or_end(Tasks, Acc) ->
{lists:reverse(Acc), rebar_utils:args_to_tasks(Tasks)}.
|
