diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/rebar_erlc_compiler.erl | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/src/rebar_erlc_compiler.erl b/src/rebar_erlc_compiler.erl index b096705..949fc45 100644 --- a/src/rebar_erlc_compiler.erl +++ b/src/rebar_erlc_compiler.erl @@ -254,11 +254,26 @@ include_path(Source, Config) -> ++ proplists:get_all_values(i, ErlOpts)). -spec needs_compile(file:filename(), file:filename(), - [string()]) -> boolean(). -needs_compile(Source, Target, Parents) -> + list(), [string()]) -> boolean(). +needs_compile(Source, Target, Opts, Parents) -> TargetLastMod = filelib:last_modified(Target), - lists:any(fun(I) -> TargetLastMod < filelib:last_modified(I) end, - [Source] ++ Parents). + F = fun(I) -> source_changed(TargetLastMod, I) end, + lists:any(F, [Source] ++ Parents) orelse opts_changed(Opts, Target). + +source_changed(TargetLastMod, I) -> TargetLastMod < filelib:last_modified(I). + +opts_changed(Opts, Target) -> + Basename = filename:basename(Target, ".beam"), + Dirname = filename:dirname(Target), + ObjectFile = filename:join([Dirname, Basename]), + case code:load_abs(ObjectFile) of + {module, Mod} -> + Compile = Mod:module_info(compile), + lists:sort(Opts) =/= lists:sort(proplists:get_value(options, + Compile, + undefined)); + {error, nofile} -> true + end. check_erlcinfo(_Config, #erlcinfo{vsn=?ERLCINFO_VSN}) -> ok; @@ -427,13 +442,15 @@ internal_erl_compile(Config, Dir, Source, OutDir, ErlOpts, G) -> Target = filename:join([OutDir | string:tokens(Module, ".")]) ++ ".beam", ok = filelib:ensure_dir(Target), + %% Construct the compile opts + Opts = [{outdir, filename:dirname(Target)}] ++ + ErlOpts ++ [{i, filename:join(Dir, "include")}], + %% If the file needs compilation, based on last mod date of includes or %% the target - case needs_compile(Source, Target, Parents) of + case needs_compile(Source, Target, Opts, Parents) of true -> - Opts = [{outdir, filename:dirname(Target)}] ++ - ErlOpts ++ [{i, filename:join(Dir, "include")}, return], - case compile:file(Source, Opts) of + case compile:file(Source, Opts ++ [return]) of {ok, _Mod} -> ok; {ok, _Mod, Ws} -> @@ -489,7 +506,7 @@ compile_xrl_yrl(Config, Source, Target, Opts, Mod) -> Dir = rebar_state:dir(Config), Opts1 = [{includefile, filename:join(Dir, I)} || {includefile, I} <- Opts, filename:pathtype(I) =:= relative], - case needs_compile(Source, Target, []) of + case needs_compile(Source, Target, Opts1, []) of true -> case Mod:file(Source, Opts1 ++ [{return, true}]) of {ok, _} -> |