bug#74905: [PATCH] Implement search for nnvirtual Gnus groups

[James Thomas via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Björn Bidar wrote:

> This patch implements search for nnvirtual. I'm using publi-inbox's
> with nnvirtual to group each group into one.
> However searching wasn't possible in these nnvirtual groups.
> I implemented gnus-search-run-search based on the existing
> nnselect gnus-search-run-search function.

Thanks! I haven't looked into it, but here are some quick comments:

> I'm looking for feedback on the patch. I don't exactly know how
> the search function is called when multiple groups of the same type
> are
> involved. For nnvirtual each group is its on server, does that mean
> the
> function will be always called only for each group? In that case
> everything should be good.

That seems to be the case: see gnus-group-read-ephemeral-search-group
and gnus-group-make-search-group.

> +(deffoo nnvirtual-request-list (&optional server)
> +  (when (nnvirtual-possibly-change-server server)
> +    (with-current-buffer nntp-server-buffer
> +      (erase-buffer)
> +      (dolist (group nnvirtual-component-groups)
> +        (insert (format "%S 0  1 y\n" group))))
> +    t))

Did you check if gnus-start.el#L1801 withstands this? It seems to me to
assume that nnvirtual doesn't have -request-list.

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