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-module(rebar_prv_compile).
-behaviour(provider).
-export([init/1,
do/1,
format_error/1]).
-export([build/2]).
-include("rebar.hrl").
-define(PROVIDER, compile).
-define(DEPS, [lock]).
-define(DEFAULT_JOBS, 3).
%% ===================================================================
%% Public API
%% ===================================================================
-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
init(State) ->
JobsHelp = io_lib:format(
"Number of concurrent workers the compiler may use. Default: ~B",
[?DEFAULT_JOBS]),
State1 = rebar_state:add_provider(State, providers:create([{name, ?PROVIDER},
{module, ?MODULE},
{bare, false},
{deps, ?DEPS},
{example, "rebar compile"},
{short_desc, "Compile apps .app.src and .erl files."},
{desc, ""},
{opts, [
{jobs, $j, "jobs", integer, JobsHelp}
]}])),
{ok, State1}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
{ok, State1} = handle_args(State),
Jobs = rebar_state:get(State1, jobs),
ProjectApps = rebar_state:project_apps(State1),
Deps = rebar_state:deps_to_build(State1),
Cwd = rebar_dir:get_cwd(),
rebar_hooks:run_compile_hooks(Cwd, pre_hooks, compile, State1),
%% Need to allow global config vars used on deps
%% Right now no way to differeniate and just give deps a new state
EmptyState = rebar_state:new(),
EmptyState1 = rebar_state:set(EmptyState, jobs, Jobs),
build_apps(EmptyState1, Deps),
%% Use the project State for building project apps
%% Set hooks to empty so top-level hooks aren't run for each project app
State2 = rebar_state:set(rebar_state:set(State1, post_hooks, []), pre_hooks, []),
build_apps(State2, ProjectApps),
rebar_hooks:run_compile_hooks(Cwd, post_hooks, compile, State1),
{ok, State1}.
-spec format_error(any()) -> iolist().
format_error(Reason) ->
io_lib:format("~p", [Reason]).
build_apps(State, Apps) ->
lists:foreach(fun(AppInfo) ->
AppDir = rebar_app_info:dir(AppInfo),
C = rebar_config:consult(AppDir),
S = rebar_state:new(State, C, AppDir),
%% Legacy hook support
rebar_hooks:run_compile_hooks(AppDir, pre_hooks, compile, S),
build(S, AppInfo),
rebar_hooks:run_compile_hooks(AppDir, post_hooks, compile, S),
true = code:add_patha(filename:join(AppDir, "ebin"))
end, Apps).
build(State, AppInfo) ->
?INFO("Compiling ~s", [rebar_app_info:name(AppInfo)]),
rebar_erlc_compiler:compile(State, ec_cnv:to_list(rebar_app_info:dir(AppInfo))),
{ok, AppInfo1} = rebar_otp_app:compile(State, AppInfo),
AppInfo1.
%% ===================================================================
%% Internal functions
%% ===================================================================
handle_args(State) ->
{Args, _} = rebar_state:command_parsed_args(State),
Jobs = proplists:get_value(jobs, Args, ?DEFAULT_JOBS),
{ok, rebar_state:set(State, jobs, Jobs)}.
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