iOS Git Versioning

set-version-from-git.sh

#!/usr/bin/env bash

#  set-version-from-git.sh
#  Usage: `set-version-from-git.sh [branch]`
#  Run this script after the 'Copy Bundle Resources' build phase
#  Ref: http://tgoode.com/2014/06/05/sensible-way-increment-bundle-version-cfbundleversion-xcode/
#  Sets the build and version numbers in the compiled app bundle so it doesn't 
#  modify your version controlled info.plist

branch=${1:-'master'}
buildNumber=$(expr $(git rev-list $branch --count) - $(git rev-list HEAD..$branch --count))
echo "Updating build number to $buildNumber using branch '$branch'."

versionNumber=$(git describe --tags)
echo "Version from tag: $versionNumber"

/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "${TARGET_BUILD_DIR}/${INFOPLIST_PATH}"
/usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString $versionNumber" "${TARGET_BUILD_DIR}/${INFOPLIST_PATH}"
if [ -f "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}.dSYM/Contents/Info.plist" ]; then
  /usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}.dSYM/Contents/Info.plist"
  /usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString $versionNumber" "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}.dSYM/Contents/Info.plist"
fi