I've got a script written which does some steps to package my build for an Ad Hoc distribution. My first guess was to use a run script phase in my Ad Hoc target. But it looks like codesigning is fixed at the last position in the chain of building iPhone apps.
Somebody has a clue how can I run my script at the very last possible moment in the build process?
Update: Look at this answer below on how to run scripts in Xcode 4.
Can you create an aggregate target that contains both your "Ad hoc" target and a run script build phase (that runs after the "Ad hoc" target)?
A short update on that topic: Since we all use Xcode 4 these days. Apple has refined the process of running scripts on several events in the build process with the introduction of schemes.
Go to Product → Edit Scheme… there you have the chance to run scripts before/after a build, a debugging, archiving, etc event. It's pretty handy to set a version number from git describe output or upload .xcarchives to services like TestFlight and HockeyApp.
If you want to share your pre/post scripts with other team members who got access to your code repository, you can go to Product → Manage Schemes… and mark your scheme as shared. After you checked in …{project_name}.xcodeproj/xcshareddata/xcschemes/{project_name}.xcscheme to your preferred scm everybody can use it in the project.
来源：https://stackoverflow.com/questions/1409981/how-to-run-a-script-after-xcode-runs-codesign-on-my-iphone-app