title: How to make Xcode "Run Script" to always run
body: <p>I have a "run script" step that dynamically creates resources/files that I copy into the build dirs.  Every run of this script produces different content so I want it to run on every build.  The script gets run correctly on a clean build however once a build is made the step is not run again since no source has been modified.  </p>
  
  <p>I tried setting the input of the step to /dev/random but it does not seem to trigger a changed environment and does not re run the step.</p>
  
  <p>Is there a way I can set this up so this step gets run ever time build is pressed, as opposed to only when the source is modified or clean?</p>