# Copy the contrib migrate_upgrade module to core drupal_upgrade.
cp -R modules/contrib/migrate_upgrade core/modules
mv core/modules/migrate_upgrade core/modules/drupal_upgrade
pushd core/modules/drupal_upgrade
# Remove drush-only files, and git.
rm migrate_upgrade.drush.inc
rm src/MigrateUpgradeDrushRunner.php
rm src/DrushLogMigrateMessage.php
rm -Rf .git
# Rename the files.
for f in migrate_upgrade.*; do mv "$f" "`echo $f | sed s/migrate_upgrade/drupal_upgrade/`"; done
# Put the shared trait into migrate_drupal.
mv src/MigrationCreationTrait.php ../migrate_drupal/src
# Replace module name references (namespaces etc.) in all drupal_upgrade files.
find . -name "?*.*" -exec sed -i .bak s/migrate_upgrade/drupal_upgrade/g {} \;
# Fix up the trait.
sed -i .bak s/migrate_upgrade/migrate_drupal/g ../migrate_drupal/src/MigrationCreationTrait.php
# and references to the trait
find . -name "?*.*" -exec sed -i .bak 's/drupal_upgrade\\MigrationCreationTrait/migrate_drupal\\MigrationCreationTrait/g' {} \;
# Cleanup.
find . -name "*.bak" -delete
find ../migrate_drupal -name "*.bak" -delete
# Return home.
popd