Backport PR #6538 to Drush 12.x

[sonnykt]

Describe the bug
psy/psysh 0.12.22 has a breaking change in Shell.php which was fixed in Drush 13.x (#6538) and 14.x (#6543) last week. However, the latest version of Drush 12.x is still having the error.

To Reproduce

• Drush 12.x

$ drush php
PHP Fatal error:  Access level to Drush\Psysh\Shell::hasCommand() must be public (as in class Psy\Shell) in /app/vendor/drush/drush/src/Psysh/Shell.php on line 33

Workaround
Pin psy/psysh to 0.12.20.

System Configuration

Q	A
Drush version?	12.x
Drupal version?	10.x
PHP version	8.x
OS?	Linux

Additional information
Backport #6538 to 12.x.

[weitzman]

Wont this break anyone who upgrades drush but not psysh? Seems we have a catch 22 when folks upgrade either one without the other.

[damienmckenna]

It might be worth updating Drush's composer.json to indicate it's incompatible with psy/psysh 0.12.22?

[damienmckenna]

Would this work?

diff --git a/composer.json b/composer.json
index 8a757e181..7aa88c2fa 100644
--- a/composer.json
+++ b/composer.json
@@ -65,7 +65,8 @@
   "conflict": {
     "drupal/core": "< 10.0",
     "drupal/migrate_run": "*",
-    "drupal/migrate_tools": "<= 5"
+    "drupal/migrate_tools": "<= 5",
+    "psy/psysh": ">= 0.12.22"
   },
   "autoload": {
     "psr-4": {