--- /dev/null
+#!/bin/bash
+
+set -e $DRUPAL_TI_DEBUG
+
+# Ensure the right Drupal version is installed.
+# The first time this is run, it will install Drupal.
+# Note: This function is re-entrant.
+drupal_ti_ensure_drupal
+
+# Change to the Drupal directory
+cd "$DRUPAL_TI_DRUPAL_DIR"
+
+# Download and apply core patches here, if needed.