WP Site Health doesn't work if `wp-content/uploads/fonts` directory doesn't exist

[jkmassel]

Related to #60719 and ​https://github.com/WordPress/wordpress-develop/pull/6260.

As noted in ​https://wordpress.org/support/topic/wordpress-6-6-query-to-directory-sizes-of-wp-site-health-json-returns-500-error/, the API returns a 500 error if wp-content/uploads/fonts doesn't exist (because it thinks it can't reliably determine the size of the WordPress installation without access to that directory).

We're already checking the overall size of uploads_size, so IINM we're also double-counting the size of any included fonts.

[jkmassel]

Clean install of WordPress (using the latest docker image) – size values never load, web console shows HTTP 500 errors

[jkmassel]

After creating the wp-content/uploads/fonts directory within the docker image the values load immediately

[jkmassel]

Before creating wp-content/uploads/fonts:

curl "http://localhost/wp-json/wp-site-health/v1/directory-sizes" -u 'test@example.com:[redacted]'
{"code":"not_available","message":"Directory sizes could not be returned.","data":{"status":500}}                                                                                                                                                                                                                        

After creating wp-content/uploads/fonts:

curl "http://localhost/wp-json/wp-site-health/v1/directory-sizes" -u 'test@example.com:[redacted]'
{"raw":0,"wordpress_size":{"size":"55.37 MB","debug":"55.37 MB (58060516 bytes)","raw":58060516},"themes_size":{"size":"12.12 MB","debug":"12.12 MB (12706752 bytes)","raw":12706752},"plugins_size":{"size":"395.35 KB","debug":"395.35 KB (404836 bytes)","raw":404836},"uploads_size":{"size":"44.87 MB","debug":"44.87 MB (47044510 bytes)","raw":47044510},"fonts_size":{"size":"0.00 B","debug":"0.00 B (0 bytes)"},"database_size":{"size":"3.34 MB","debug":"3.34 MB (3506176 bytes)","raw":3506176},"total_size":{"size":"116.08 MB","debug":"116.08 MB (121722790 bytes)","raw":121722790}}                                              

[narenin]

Hi,

I have also try to replicate the issue and it is showing the same behavior at my end.

Environment

WordPress: 6.6.1
PHP: 8.1.23
Server: nginx/1.16.0
Database: mysqli (Server: 8.0.16 / Client: mysqlnd 8.1.23)
Browser: Chrome 126.0.0.0 (macOS)
Theme: Twenty Nineteen 2.8

Also this is happening because if we are getting 'not available' value for the given variable

$all_sizes['total_size']['debug']

then we are passing status 500 in API response due to which all data related to directory showing 'loading...' while it should show only 'loading...' for only directory which does not has data.

API URL : ​https://site-url/wp-json/wp-site-health/v1/directory-sizes

Trac ticket: https://core.trac.wordpress.org/ticket/61736

[swissspidy]

This is already being tracked in #61638

The earlier PR was merged r58884 / ​https://github.com/WordPress/wordpress-develop/commit/ac5fdb4660caa95d78867c6615de8e329e0e18f1