It is extremely important to assess the complexity of your Drupal 7 website before you plan to upgrade/migrate it to Drupal 9. We have created a tool that helps you in this process.
Drupal 7 Audit
The Drupal 7 audit is a Drush command which can do a full site audit to capture the essential elements required for assessing the complexity of your Drupal 7 site.
The script will capture the following elements and prepare a neat report which can be given to any Drupal vendor to get an estimate of your Drupal 7 to 9 migration.
|1.4||Drupal 7 version|
|2.1||List of content types with several fields and number of published nodes|
|2.2||List of web forms with the total number of submissions|
|2.3||Number of files uploaded|
|2.4||List of vocabularies and number of terms|
|2.5||List of enabled views with several displays|
|2.6||List of enabled blocks and regions|
|3.1||List of contributed modules with its Drupal 8/9 readiness status|
|3.2||List of custom modules enabled with the number of lines of code|
|3.3||List of enabled features|
|4.1||List of templates from the default theme|
|4.2||The number of lines of code and list of functions from the template.php|
|4.3||List of CSS and JS files used|
|5.1||List of user roles with several users|
|5.2||List of permissions|
|6.1||List of custom cron jobs|
Multiple Drupal 7 Website?
If you are managing multiple Drupal 7 websites in a Drupal hosting system like Pantheon, no need to execute this Drush command manually on all the websites. It is possible to automate this script to execute on all your Drupal 7 websites on Pantheon using Terminus, multi-dev environment, and durst features provided by Pantheon. We recently executed this script for a client who has 170+ Drupal websites in Pantheon, and it took only a few hours to get this done, without even touching the production environment.