rebar_lfe_compiler.erl

%% -------------------------------------------------------------------
%%
%% rebar: Erlang Build Tools
%%
%% Copyright (c) 2009 Dave Smith (dizzyd@dizzyd.com),
%%                    Tim Dysinger (tim@dysinger.net)
%%
%% Permission is hereby granted, free of charge, to any person obtaining a copy
%% of this software and associated documentation files (the "Software"), to deal
%% in the Software without restriction, including without limitation the rights
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%% copies of the Software, and to permit persons to whom the Software is
%% furnished to do so, subject to the following conditions:
%%
%% The above copyright notice and this permission notice shall be included in
%% all copies or substantial portions of the Software.
%%
%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%% THE SOFTWARE.
%% -------------------------------------------------------------------

-module(rebar_lfe_compiler).

-export([compile/2]).

%% ===================================================================
%% Public API
%% ===================================================================

compile(Config, _AppFile) ->
    %% TODO check if we even have the lfe_comp compiler in our path 1st
    rebar_erlc_compiler:do_compile(Config, "src/*.lfe", "ebin", ".lfe", ".beam",
                                   fun compile_lfe/2,
                                   rebar_config:get_list(Config,
                                                         erl_first_files, [])).

%% ===================================================================
%% Internal functions
%% ===================================================================

compile_lfe(Source, Config) ->
    Opts = [{i, "include"}, {outdir, "ebin"}, report, return] ++
        compile_opts(Config, erl_opts),
    case eval("lfe_comp:file(Source,Opts]).",
              [{'Source',Source},{'Opts',Opts}]) of
        {ok,_} -> ok;
        %% TODO does LFE even have warnings?
        _ -> ?FAIL
    end.

eval(Code,Args) ->
    {ok,Scanned,_} = erl_scan:string(Code),
    {ok,Parsed} = erl_parse:parse_exprs(Scanned),
    Bindings = lists:foldl(fun({Key,Val},Acc) ->
                                   erl_eval:add_binding(Key,Val,Acc)
                           end,erl_eval:new_bindings(),Args),
    {value,Result,_} = erl_eval:exprs(Parsed,Bindings),
    Result.