system_site.yml

id: system_site
label: Site configuration
migration_tags:
  - Drupal 6
  - Drupal 7
  - Configuration
source:
  plugin: variable
  constants:
    slash: '/'
  variables:
    - site_name
    - site_mail
    - site_slogan
    - site_frontpage
    - site_403
    - site_404
    - drupal_weight_select_max
  source_module: system
process:
  name: site_name
  mail: site_mail
  slogan: site_slogan
  'page/front':
    -
      plugin: concat
      source:
        - constants/slash
        - site_frontpage
    -
      plugin: static_map
      map:
        # Drupal 6 and Drupal 7 default site_frontpage is 'node'. If this
        # variable is set to 'node', to an empty string, or it is completely
        # missing, we want to migrate the equivalent Drupal 9 value, which is
        # '/node'.
        '/': '/node'
      bypass: true
  'page/403':
    -
      plugin: concat
      source:
        - constants/slash
        - site_403
    -
      plugin: static_map
      map:
        '/': ''
      bypass: true
  'page/404':
    -
      plugin: concat
      source:
        - constants/slash
        - site_404
    -
      plugin: static_map
      map:
        '/': ''
      bypass: true
  weight_select_max:
    plugin: default_value
    source: drupal_weight_select_max
    strict: true
    default_value: 100
destination:
  plugin: config
  config_name: system.site