rebar.config.script

%% -*- mode: erlang -*-
%%
%% This doesn't change CONFIG. If couch isn't accessible to the code server,
%% it adds paths from couch-config. This is equivalent to:
%%
%%   ERL_LIBS=$(couch-config --erl-libs-dir):$ERL_LIBS rebar compile
%%
case code:which(couch) of
    non_existing ->
        try
            Cfg = os:cmd("couch-config --erl-libs-dir"),
            [LibDir] = string:tokens(Cfg, "\n"),
            true = filelib:is_dir(LibDir),
            code:add_pathsa(
              filelib:wildcard(filename:join([LibDir, "*", "ebin"]))),
            false = (code:which(couch) =:= non_existing)
        catch _Err:_What ->
                io:format(
                  "CONFIG ERROR:\n"
                  "Failed to run couch-config --erl-libs-dir\n"
                  "Ensure that couch-config is on the PATH, or set ERL_LIBS "
                  "appropriately\n\n")
        end;
    _ ->
        ok
end,
CONFIG.