gnome-control-center/meson_post_install.py

#!/usr/bin/env python3

import os
import subprocess
import sys

gsettingsschemadir = os.path.join(sys.argv[1], 'glib-2.0', 'schemas')
icondir = os.path.join(sys.argv[1], 'icons', 'hicolor')

if not os.environ.get('DESTDIR'):
  print('Compiling gsettings schemas...')
  subprocess.call(['glib-compile-schemas', gsettingsschemadir])

  print('Update icon cache...')
  subprocess.call(['gtk-update-icon-cache', '-f', '-t', icondir])