bug#49033: 28.0.50; [PATCH] Feature suggestion, url-cache-expiry-alist to override expire time for cache pruning

[Alex Bochannek]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> Alex Bochannek <alex@bochannek.com> writes:
>
>> Support URL-specific cache expiration
>>
>>      * test/lisp/url/url-cache-tests.el: Test URL-to-filename and
>>      filename-to-URL mappings used by URL caching.
>>
>>      * lisp/url/url-cache.el (url-cache-expiry-alist)
>>      (url-cache-create-url-from-file, url-cache-expired)
>>      (url-cache-prune-cache): Expire cache entries based on regular
>>      expressions matching URLs defined in new customizable variable
>>      url-cache-expire-alist.
>>
>>      * doc/misc/url.texi (Disk Caching): Mention
>>      url-cache-expiry-alist variable.
>
> Looks good to me.  What's the use case for this, though?

I originally had looked at this for Gravatar entries and I am now using
it to avoid fetching the same images in RSS feeds. I just noticed though
that `url-cache-create-url-from-file' won't work if
`url-cache-create-filename-human-readable' is used. Any suggestions for
how to address that?

-- 
Alex.