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path: root/src/rebar_prv_tar.erl
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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et

-module(rebar_prv_tar).

-behaviour(provider).

-export([init/1,
         do/1,
         format_error/1]).

-include("rebar.hrl").

-define(PROVIDER, tar).
-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, "rebar3 tar"},
                                                               {short_desc, "Tar archive of release built of project."},
                                                               {desc, "Tar archive of release built of project."},
                                                               {opts, relx:opt_spec_list()}])),
    {ok, State1}.

-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
    Caller = rebar_state:get(State, caller, api),
    Options = rebar_state:command_args(State),
    DepsDir = rebar_dir:deps_dir(State),
    ProjectAppDirs = lists:delete(".", ?DEFAULT_PROJECT_APP_DIRS),
    LibDirs = rebar_utils:filtermap(fun ec_file:exists/1,
                                   [?DEFAULT_CHECKOUTS_DIR, DepsDir | ProjectAppDirs]),
    OutputDir = filename:join(rebar_dir:base_dir(State), ?DEFAULT_RELEASE_DIR),
    AllOptions = string:join(["release", "tar" | Options], " "),
    case rebar_state:get(State, relx, []) of
        [] ->
            relx:main([{lib_dirs, LibDirs}
                      ,{output_dir, OutputDir}
                      ,{caller, Caller}], AllOptions);
        Config ->
            relx:main([{lib_dirs, LibDirs}
                      ,{config, lists:reverse(Config)}
                      ,{output_dir, OutputDir}
                      ,{caller, Caller}], AllOptions)
    end,
    {ok, State}.

-spec format_error(any()) -> iolist().
format_error(Reason) ->
    io_lib:format("~p", [Reason]).