Drush\Boot

The BootstrapHook is installed as an init hook that runs before all commands. If there is a @bootstrap annotation/attribute, then we will bootstrap Drupal to the requested phase.

A value class with bootstrap levels.

This is a do-nothing 'Boot' class that is used when there is no site at Drupal root, or when no root is specified.

Defines the available kernels that can be bootstrapped.

Defines the interface for a Boot classes. Any CMS that wishes to work with Drush should extend BaseBoot. If the CMS has a Drupal-Compatibility layer, then it should extend DrupalBoot.