Include Version Info from Git into Info.plist at build time

gistfile1.txt

Add the script include-version-info.sh into a new run script build phase of your application target. The build phase 
should be located after the build phase "Copy Bundle Resources".

include-version-info.sh

# Use Xcode's copy of the Git binary
GIT=`xcrun -find git`

# Use the commit count as CFBundleVersion
GIT_COMMIT_COUNT=`${GIT} rev-list --count HEAD`
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion ${GIT_COMMIT_COUNT}" "${BUILT_PRODUCTS_DIR}/${INFOPLIST_PATH}"

## Use the last annotated tag as CFBundleShortVersionString
GIT_TAG=`${GIT} describe --tags --always --dirty`
/usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString ${GIT_TAG}" "${BUILT_PRODUCTS_DIR}/${INFOPLIST_PATH}"

One last update with a solution... the problems happened after I updated to Xcode 10 (with Xcode 9 it worked for me). It turns out that to get it to work reliably (with Xcode 10) I needed to add the file "${BUILT_PRODUCTS_DIR}/${INFOPLIST_PATH}" as an input dependency for my custom script. Then the build system rearranges things to ensure it processes Info.plist before calling my custom script that modifies it (no further hacks like sleep 5 are needed ;-).

See the following comment in the Xcode 10 Release notes:

In the new build system, shell scripts can't rely on the state of build artifacts not listed in other build phases (for example, the Info.plist file or .dSYM files.) Add files the script build phase depends on as explicit input dependencies to the shell script build phase. (40852184)

@totalgee Adding the plist to the dependencies also fixed it for me, thanks for the advice.

Unfortunately it seems like my Info.plist gets overwritten every time the app is finally run in XCode 11 beta. I tried variations of BUILT_PRODUCTS_DIR and TARGET_BUILD_DIR (and adding them as input files) and I can get the plist value to change on build, but as soon as the app is run it is cleared. I've got the run script as the last task as well.

Will be following this if anyone figures out how to make this work in 11 beta (w new build system).

I had to remove this script temporarily as Xcode 11 GM Seed 2 (and everything before that) was clearing out the CFBundleVersion. I wasn't able to run my build on Jenkins as a result. It kept complaining about a missing bundle version even though it has a default value set that gets updated on the fly from this script. If anyone finds a workaround, I'd love to put this back.

Anyone find a fix for this? using xcrun agvtool next-version -all was working for me in a build phase run script, but then when I added a Xcode server Bot everything just breaks for some reason.

@billburgess I guess that the updates for the default value on the fly actually interferes with the (strange) logic of Xcode. I, too, wanted to have the version params to be saved in a text file (I tried xcconfig), but this didn't work reliably.

In the end, this script works for me when I put in Info.plist placeholders, like

<key>CFBundleShortVersionString</key>
<string>--</string>
<key>CFBundleVersion</key>
<string>--</string>