Feature: #90197 - Introduce cache:flush console command

See forge#90197

Description

It is now possible to flush TYPO3 caches using the command line.

The administrator can use the following CLI command:

./typo3/sysext/core/bin/typo3 cache:flush
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Specific cache groups can be defined via the group option. The usage is described as:

cache:flush [--group <all|system|di|pages|…>]
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All available cache groups can be supplied as option. The command defaults to flush all available cache groups as the install tool does.

Extensions that register custom caches may listen to the via \TYPO3\CMS\Core\Cache\Event\CacheFlushEvent , but usually the cache flush via CacheManager groups will suffice.

Impact

It is often required to clear caches during deployment of TYPO3 instance updates, in order for content changes to become active.

TYPO3 caches can now be flushed in release postparatory steps. The integrator may decide to flush all caches (common practice with EXT:typo3_console) or may alternatively flush selected groups (e.g. 'pages') in case the cache:warmup (see forge#93436) command is used as companion in release preparatory steps.

Deployment steps could then be:

  • Release preparation:

    • git-checkout/rsync your codebase (on CI or on live system)
    • composer install (on CI or on live system)
    • vendor/bin/typo3 cache:warmup --group system (only on the live system)
  • Change release symlink to the new release folder

  • Release postparation

    • vendor/bin/typo3 cache:flush --group pages