Xcode bump-version script using 'xcodebuild -showBuildSettings'

bump-version_xcode.sh

#!/bin/bash

function get_env_val {
	path=$(xcode-select -print-path)
	var=$($path/usr/bin/xcodebuild -showBuildSettings | sed -n -e 's/'"$1"' = \(.*\)/\1/p')

	echo $var
}

SRCROOT=$(get_env_val "SRCROOT")
TARGETNAME=$(get_env_val "TARGETNAME")
PROJECT_DIR=$(get_env_val "PROJECT_DIR")
INFOPLIST_FILE=$(get_env_val "INFOPLIST_FILE")

oldBuildNumber=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "${INFOPLIST_FILE}")
#CFBundleVersion (build number) must be integer!
buildNumber=$(($oldBuildNumber + 1))

echo "bumping version..."

/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "${INFOPLIST_FILE}"

echo "bumped: $oldBuildNumber -> $buildNumber"