alternate bogart viewengine signature

bogart-jade-alternate.js

var bogart = require('bogart')
  , jade   = require('jade');


require('bogart').viewEngine.addEngine('jade', function(path, opts, read, cache) {
  when(cache(path) || read(path), function(tpl) {
    var fn;
    if(typeof tpl === "function") {
      fn = tpl;
    } else {
      fn = jade.compile(tpl, opts);
      cache(path, fn);
    }
    return fn(opts.locals);
  });
});