How to automatically set the version and build number of a Watchkit app target

I use this to update all the targets:

#!/bin/bash
buildNumber=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "$INFOPLIST_FILE")
buildNumber=$(($buildNumber + 1))
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "$INFOPLIST_FILE"
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "$SRCROOT/Great WatchKit App/Info.plist"

My CFBundleVersion is the number of commits on my master branch on the git repo.

On my main app target, in Build Phases > + New Run Script Phase I've added this script:

# Set the build number to the count of Git commits
buildNumber=$(git rev-list --count HEAD)
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "${PROJECT_DIR}/${INFOPLIST_FILE}"
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "$SRCROOT/app WatchKit Extension/Info.plist"
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "$SRCROOT/app WatchKit App/Info.plist"

From app WatchKit App the app should be the name of your app, but check the exact path.