title: Output when watching CoffeeScript files from a cakefile task
body: <p>I would like to make a Cakefile task to watch some CoffeeScript files just like if I had run <code>coffee -c -w js/*.coffee</code>.</p>
  
  <p>Its watching and recompiling them successfully, but it doesn't log the usual output to the terminal when there's a compile error like it would if I just ran the script from the terminal.  Any idea how to make this happen?</p>
  
  <pre><code>exec = require('child_process').exec
  
  task 'watch','watch all files and compile them as needed', (options) -&gt;
      exec 'coffee -c -w js/*.coffee', (err,stdout, stderr) -&gt;
          console.log stdout
  </code></pre>
  
  <p>Also, if there's a better way to invoke a coffeescript command from a cakefile than running 'exec' please post that too.</p>