Insert Subversion revision number in Xcode

There’s a much simpler solution: using PlistBuddy, included at /usr/libexec/PlistBuddy in Leopard. See my answer to a related SO question for details.

PlistBuddy can be used in a Run Script build phase from within Xcode, and can be used to only affect the processed plist file. Just put it after the Copy Resources phase, and you don’t even have to clean the target for it to run each time. You don’t even have to print the value to a header file and make SVN ignore it, either.

    | xargs -0 /usr/libexec/PlistBuddy -c "Set :CFBundleVersion `svnversion -n`"

Assuming you add the build phase before code signing occurs, your plist should be signed with the substituted value.

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