How I keep OSX plist prefs in my dotfiles repo

prefs.sh

#Export like this: prefs export iterm
#import like this: prefs import iterm

    prefs() {
      local OP="${1}"
      shift
      case "${OP}" in
        export|import);
        ;;
        *)
          echo "Usage: prefs <export|import> <app>" 1>&2
          return 1
        ;;
      esac
      local NAME=$(echo "${1}" | tr A-Z a-z)
      local DIR="Library/Preferences"
      local PLIST=
      case ${NAME} in
        *keyboard*|*maestro*|km)
          PLIST="Library/Application Support/Keyboard Maestro/Keyboard Maestro Macros.plist"
        ;;
        iterm)
          PLIST="${DIR}/com.googlecode.iterm2.plist"
        ;;
        terminal)
          PLIST="${DIR}/com.apple.Terminal.plist"
        ;;
        *)
          echo "Uknown App name ${1}" 1>&2
          return 10
        ;;
      esac
      local BIN="${HOME}/${PLIST}"
      local XML="${HOME}/projects/dotfiles/${PLIST}"
      case "${OP}" in
        export)
          cp "${BIN}" "${XML}"
          plutil -convert xml1 "${XML}"
          cd ~/projects/dotfiles
          git status
        ;;
        import)
          cp "${XML}" "${BIN}"
          plutil -convert binary1 "${BIN}"
        ;;
      esac
    }