[php8-compact] Allow for CiviCRM to be installed by 3rd parties using…

[seamuslee001]

… composer on php8 systems

Overview

This would permit sites running Drupal 9 for example to install / update civicrm if their CLI or similar uses php8

Before

Cannot install or update civicrm via composer if php version is > 7.4

After

Can install or update civicrm via composer if php versions is > 7.4

I know that we have ~8 test failures still to go but most of those are actual issues not specifically related to php8 but php8 highlights them well. I'm not sure if that should be a blocker to doing this tho.

ping @eileenmcnaughton @totten @demeritcowboy @colemanw @MikeyMJCO

[civibot]

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[demeritcowboy]

Another alternative is to just tell people they can use --ignore-platform-reqs if they really want to install civi with php 8 via composer.

By the way drupal 9.2 was released today and I can't seem to prevent composer from choosing it no matter what I tell it. Maybe it decides it's the "right" one for php 8 even if I specify 9.1.

[seamuslee001]

@demeritcowboy sure we can do that but I think there is a point at which we need to say "Yes CiviCRM can be installed on php8" and I think once #20616 and #20623 are both resolved then I think we are kind of there, the last few test failures are actual legit issues and all php8 is doing is surfacing them more rather than actually being compatibility issues with php8 IMO

[demeritcowboy]

Ok yes I see your point. Yes with php 8 you can physically composer download the files and e.g. run cv core:install.

[totten]

I think that - since we're at the point where the tests pass on CiviCRM-Core-Edge - it makes sense to update composer.json and treat this as installable.

We could (as an additional/distinct thing) provide a warning during the installation or status-check to say that PHP 8 support is still early/incomplete (e.g. beta-period) and other bugs could crop up.

[totten]

Several of the recent builds for master on CiviCRM-Core-Edge (PHP8) have been passing:

The one recent failure is due to traditionally flaky tests.