Description

Provides Drush commands showing the tree of dependencies between Drupal objects, such as modules or configuration entities. Useful to understand the dependency chain in a Drupal installation.

Use cases

Get all installed modules depending on a given module

./vendor/bin/drush why:module node --dependent-type=module

View output

node
├─forum
├─history
│ └─forum
└─taxonomy
  └─forum

Get all modules depending on a given module (installed or not)

./vendor/bin/drush why:module node --dependent-type=module --no-only-installed

View output

node
├─book
├─forum
├─history
│ └─forum
├─statistics
├─taxonomy
│ └─forum
└─tracker

Get all config entities depending on a given module

./vendor/bin/drush why:module node --dependent-type=config

View output

node
├─core.entity_view_mode.node.full
├─core.entity_view_mode.node.rss
├─core.entity_view_mode.node.search_index
├─core.entity_view_mode.node.search_result
├─core.entity_view_mode.node.teaser
│ └─core.entity_view_display.node.forum.teaser
├─field.storage.node.body
│ └─field.field.node.forum.body
│   ├─core.entity_form_display.node.forum.default
│   ├─core.entity_view_display.node.forum.default
│   └─core.entity_view_display.node.forum.teaser
├─field.storage.node.comment_forum
│ └─field.field.node.forum.comment_forum
│   ├─core.entity_form_display.node.forum.default
│   ├─core.entity_view_display.node.forum.default
│   └─core.entity_view_display.node.forum.teaser
├─field.storage.node.taxonomy_forums
│ └─field.field.node.forum.taxonomy_forums
│   ├─core.entity_form_display.node.forum.default
│   ├─core.entity_view_display.node.forum.default
│   └─core.entity_view_display.node.forum.teaser
├─system.action.node_delete_action
├─system.action.node_make_sticky_action
├─system.action.node_make_unsticky_action
├─system.action.node_promote_action
├─system.action.node_publish_action
├─system.action.node_save_action
├─system.action.node_unpromote_action
└─system.action.node_unpublish_action

Get all config entities depending on a given config entity

./vendor/bin/drush why:config node.type.forum

View output

node.type.forum
├─core.base_field_override.node.forum.promote
├─core.base_field_override.node.forum.title
├─core.entity_form_display.node.forum.default
├─core.entity_view_display.node.forum.default
├─core.entity_view_display.node.forum.teaser
├─field.field.node.forum.body
│ ├─core.entity_form_display.node.forum.default
│ ├─core.entity_view_display.node.forum.default
│ └─core.entity_view_display.node.forum.teaser
├─field.field.node.forum.comment_forum
│ ├─core.entity_form_display.node.forum.default
│ ├─core.entity_view_display.node.forum.default
│ └─core.entity_view_display.node.forum.teaser
└─field.field.node.forum.taxonomy_forums
  ├─core.entity_form_display.node.forum.default
  ├─core.entity_view_display.node.forum.default
  └─core.entity_view_display.node.forum.teaser

Author

Claudiu Cristea | https://www.drupal.org/u/claudiucristea