Dmitry Gutov <dgutov@yandex.ru> writes:

> On 14.02.2022 15:57, Philip Kaludercic wrote:
>>> And use a simpler test: (only when the host is remote) write some text
>>> to a file in the temp dir, then search through it. Only doing it once,
>>> of course, when the connection-local value is initialized.
>> I am afraid I don't understand what you mean here, specifically "some
>> text".
>> 
>
> Well, we need some file to search and some knowledge about its
> contents in advance (so the search can succeed).

I guess this is what confuses me, what about the contents is relevant to
the query?  `xref-matches-in-files' is already passed a list of files
that can be concatenated into the input for xargs.  The current version
already works and is reasonably fast, so I don't recognise the
improvement.

> Since we don't know anything about the remote system, we probably have
> to create the file ourselves. Put something like "aaa\nbbb\nccc" in
> it, and then search for "bbb".

My apologies, I feel stupid for not understanding, but what would aaa,
bbb and ccc be?

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Here also the updated version of the patch: