Multi-site single-panel setup

[intellent]

I wonder if it is possible for staticache to support a multi-site, single-panel setup.

My setup is as follows:

• panel.mysite.com: Panel only
• site1.com: First site
• site2.com: Second site

If I enable staticache for site1.com and site2.com the pages a cached correctly inside their respective cache directories:

• static/site1.com/pages
• static/site2.com/pages

However, once I update a page in the panel, the cache is not cleared. Which makes sense, since the panel clears the cache directory for its own domain static/panel.mysite.com/pages and doesn’t know anything about the other two cache locations.

So I wonder if there is a way for me to set the cache prefix dynamically to the proper site based on the current page object that has been modified in the panel.

[intellent]

For the time being, the best thing I came up with, was creating my own modified version of the staticache type and overriding the flush() method to remove the cache of all sites.

Two downsides tough:

• It requires a custom plugin
• Changing content on one site clears the cache of all others.

use Kirby\Cache\StatiCache;
use Kirby\Filesystem\Dir;

class MultiStatiCache extends StatiCache
{
    /**
     * Flushes the cache of all sites and not just the current one.
     * Needed if the same panel serves multiple sites.
     */
    public function flush(): bool
    {
        parent::flush();

        if (
            Dir::remove($this->options['root']) === true &&
            Dir::make($this->options['root']) === true
        ) {
            return true;
        }

        return false;
    }
}