[console] ProcessBuilder is removed in Symfony 4, hence Drupal 9

[yookoala]

Problem/Motivation

Running drupal database:client will run into this error:

Error: Class "Symfony\Component\Process\ProcessBuilder" not found in Drupal\Console\Command\Database\ClientCommand->execute() (line 66 of /home/foobar/public_html/vendor/drupal/console/src/Command/Database/ClientCommand.php).

This is because the ProcessBuilder was deprecated in Symfony 3.4 and was removed in Symfony 4.0. Instead, Process should be used directly.

How to reproduce

1. Install a Drupal 9 site.
2. Install Drupal Console on it.
3. Run drupal database:client

Solution

Replace the ProcessBuilder call with Process.
Example: pact-foundation/pact-php#61

[yookoala]

Affected commands:

• config:edit
• databsae:client
• database:query
• module:install
• server

[LOBsTerr]

Thank you for your contribution. Fixed here #4335