Drupal script (eg drush) or service to generate Migration Report before migrate from 7.x to 9.x

[theodorosploumis]

See also https://github.com/theodorosploumis/drupal-report.

Report structure

• Modules installed
• Non existing 9.x modules (that are used on the 7.x)
• Entities table (names, count, rate of new items per year/month/day). Examples: node, taxonomy_term, user, menu, menu_link, paragraph, media etc.
• Fields by bundle (table)
• Views (names, paths)
• Special modules used:
  • panels
  • ds
  • context
  • paragraphs
  • media*
  • datetime*
  • revisions
  • pathauto
  • redirect
  • address
• Multilingual settings (how many languages, which entities are translated)
• Complex fields
• Shared fields
• Unused fields (have no values)
• Duplicate like fields
• Rich editor options and plugins
• Reference fields
• User roles
• Theme (name, base theme, twig overrides, asset compiling option, libraries, fonts CSS generator type - SCSS/SASS/Less etc)

Export options

• json
• txt
• html
• php

Migration effort indicators

• Time needed (total, per task)
• Tasks needed (name, order)
• Custom modules needed

Other

• Generate migration_plus yml files automatically
• Allow Admin to add parameters for calculations (eg rates, experience etc)
• Add results on the database