Auto increment build, version and save to Info.plist branch and commit, tested for xcode 9.4

xcode-increment-build.sh

echo "Setting build and version numbers..."
versionNumber=`date +%Y%m.%d`; echo "New versionNumber ${versionNumber}"
buildNumber=`date +%H%M%S`; echo "New buildNumber ${buildNumber}"
/usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString $versionNumber" "${PROJECT_DIR}/${INFOPLIST_FILE}"
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $buildNumber" "${PROJECT_DIR}/${INFOPLIST_FILE}"
echo "Setting branch name..."
function parse_git_dirty() {
    git diff --quiet --ignore-submodules HEAD 2>/dev/null; [ $? -eq 1 ] && echo "*"
}

# gets the current git branch
function parse_git_branch() {
    git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/\1$(parse_git_dirty)/"
}

# get last commit hash prepended with @ (i.e. @8a323d0)
function parse_git_hash() {
    git rev-parse --short HEAD 2> /dev/null | sed "s/\(.*\)/@\1/"
}
branchName=$(parse_git_branch)$(parse_git_hash)
/usr/libexec/PlistBuddy -c "Set :SABranchName $branchName" "${PROJECT_DIR}/${INFOPLIST_FILE}"