Search improvements

[Seldaek]

• Performance improvements by caching the /packages.json (only when searching) and /packages/list.json responses for up to 600 seconds and optimizing some code (fixes SQLite based local cache #10326)
• Add SEARCH_VENDOR search type (fixes "composer search" should return more popular packages first (or better match namespaces in name-only mode) #10325)
• Fixes and documents regex searchability at API level, preg_quote user content in search cmd (fixes preg_quote user data to RepositoryInterface::search where applicable #10324)

This lays groundwork to be able to further speed up #10320

[Seldaek]

@dkarlovi @GromNaN please have a look here :)

[Seldaek]

@GromNaN I added a second commit to hopefully really make the best of the packagist.org API (which may need to be optimized too tbh as it right now does a fairly poor SQL query for vendor search, but once Composer is using it that can be optimized later easily if needed).

[GromNaN]

That's impressing that you created a new library in such short time to solve this issues.

Performance improvement is very appreciable. I go from 900ms to 300ms on a --only-names.

BC break? I cannot use regex to match package name (same for vendor):

bin/composer search --only-name ^composer
bin/composer search --only-vendor ^composer

Thanks to the --only-vendor option, we can count 111289 vendors! That's still way too much for completion. Popularity sort would be very useful. That could be by sorting the packages in package-list.txt and vendor-list.txt.

[Seldaek]

BC break? I cannot use regex to match package name (same for vendor):

This is intended, the regex leak was before not by design, so I fixed it. You can still use regex at the PHP API level just not at CLI level. So you should be able to search for ^composer with SEARCH_VENDOR mode in #10320 to get the best results.

And yes the amount of vendors is still huge that is true.. I'll need to research how we can improve the sort order on the packagist.org API, but I need to focus on wrapping up Composer 2.2.0 first :)