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Auto incrementing build number in Xcode 4.3

One feature that is strangely missing from Xcode is the option to auto increment the build number on each build. However, with the run-script feature of the build-phase it’s easy to fix.

  • On the project summary tab set the build number to an integer.
  • Go to the build phases tab & click ‘Add build phase/add run script
  • Enter the code below. Make sure ‘shell’ is set to /bin/bash
  • Drag script to before ‘Copy Bundle Resources’

buildNumber=$(/usr/libexec/PlistBuddy -c “Print CFBundleVersion” “$INFOPLIST_PATH”)
buildNumber=$(($buildNumber + 1))
/usr/libexec/PlistBuddy -c “Set :CFBundleVersion $buildNumber” “$INFOPLIST_PATH”

XCode 4.3 caches info.plist, so the build number isn’t always shown correctly on the summary page, but it will have been updated correctly in the file.