diff options
Diffstat (limited to 'src/rebar_compiler.erl')
| -rw-r--r-- | src/rebar_compiler.erl | 67 |
1 files changed, 65 insertions, 2 deletions
diff --git a/src/rebar_compiler.erl b/src/rebar_compiler.erl index 02c74db..55666ba 100644 --- a/src/rebar_compiler.erl +++ b/src/rebar_compiler.erl @@ -21,7 +21,10 @@ out_mappings => out_mappings()}. -callback needed_files(digraph:graph(), [file:filename()], out_mappings(), rebar_app_info:t()) -> - {{[file:filename()], term()}, {[file:filename()], term()}}. + {{[file:filename()], term()}, % ErlFirstFiles (erl_opts global priority) + {[file:filename()] | % [Sequential] + {[file:filename()], [file:filename()]}, % {Sequential, Parallel} + term()}}. -callback dependencies(file:filename(), file:dirname(), [file:dirname()]) -> [file:filename()]. -callback compile(file:filename(), out_mappings(), rebar_dict(), list()) -> ok | {ok, [string()]} | {ok, [string()], [string()]}. @@ -77,7 +80,13 @@ run(CompilerMod, AppInfo, Label) -> true = digraph:delete(G), compile_each(FirstFiles, FirstFileOpts, BaseOpts, Mappings, CompilerMod), - compile_each(RestFiles, Opts, BaseOpts, Mappings, CompilerMod). + case RestFiles of + {Sequential, Parallel} -> % new parallelizable form + compile_each(Sequential, Opts, BaseOpts, Mappings, CompilerMod), + compile_parallel(Parallel, Opts, BaseOpts, Mappings, CompilerMod); + _ when is_list(RestFiles) -> % traditional sequential build + compile_each(RestFiles, Opts, BaseOpts, Mappings, CompilerMod) + end. compile_each([], _Opts, _Config, _Outs, _CompilerMod) -> ok; @@ -99,6 +108,60 @@ compile_each([Source | Rest], Opts, Config, Outs, CompilerMod) -> end, compile_each(Rest, Opts, Config, Outs, CompilerMod). +compile_worker(QueuePid, Opts, Config, Outs, CompilerMod) -> + QueuePid ! self(), + receive + {compile, Source} -> + Result = CompilerMod:compile(Source, Outs, Config, Opts), + QueuePid ! {Result, Source}, + compile_worker(QueuePid, Opts, Config, Outs, CompilerMod); + empty -> + ok + end. + +compile_parallel([], _Opts, _BaseOpts, _Mappings, _CompilerMod) -> + ok; +compile_parallel(Targets, Opts, BaseOpts, Mappings, CompilerMod) -> + Self = self(), + F = fun() -> compile_worker(Self, Opts, BaseOpts, Mappings, CompilerMod) end, + Jobs = min(length(Targets), erlang:system_info(schedulers)), + ?DEBUG("Starting ~B compile worker(s)", [Jobs]), + Pids = [spawn_monitor(F) || _I <- lists:seq(1, Jobs)], + compile_queue(Targets, Pids, Opts, BaseOpts, Mappings, CompilerMod). + +compile_queue([], [], _Opts, _Config, _Outs, _CompilerMod) -> + ok; +compile_queue(Targets, Pids, Opts, Config, Outs, CompilerMod) -> + receive + Worker when is_pid(Worker), Targets =:= [] -> + Worker ! empty, + compile_queue(Targets, Pids, Opts, Config, Outs, CompilerMod); + Worker when is_pid(Worker) -> + Worker ! {compile, hd(Targets)}, + compile_queue(tl(Targets), Pids, Opts, Config, Outs, CompilerMod); + {ok, Source} -> + ?DEBUG("~sCompiled ~s", [rebar_utils:indent(1), filename:basename(Source)]), + compile_queue(Targets, Pids, Opts, Config, Outs, CompilerMod); + {{ok, Warnings}, Source} -> + report(Warnings), + ?DEBUG("~sCompiled ~s", [rebar_utils:indent(1), filename:basename(Source)]), + compile_queue(Targets, Pids, Opts, Config, Outs, CompilerMod); + {skipped, Source} -> + ?DEBUG("~sSkipped ~s", [rebar_utils:indent(1), filename:basename(Source)]), + compile_queue(Targets, Pids, Opts, Config, Outs, CompilerMod); + {Error, Source} -> + NewSource = format_error_source(Source, Config), + ?ERROR("Compiling ~ts failed", [NewSource]), + maybe_report(Error), + ?FAIL; + {'DOWN', Mref, _, Pid, normal} -> + Pids2 = lists:delete({Pid, Mref}, Pids), + compile_queue(Targets, Pids2, Opts, Config, Outs, CompilerMod); + {'DOWN', _Mref, _, _Pid, Info} -> + ?ERROR("Compilation failed: ~p", [Info]), + ?FAIL + end. + %% @doc remove compiled artifacts from an AppDir. -spec clean([module()], rebar_app_info:t()) -> 'ok'. clean(Compilers, AppInfo) -> |