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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: Transforming paths in compilation output (containerized builds)
Date: Sun, 08 Dec 2024 09:04:28 +0200
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 (message from Yuri Khan on Sun, 8 Dec 2024 13:32:27 +0700)
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> From: Yuri Khan <yuri.v.khan@gmail.com>
> Date: Sun, 8 Dec 2024 13:32:27 +0700
> Cc: help-gnu-emacs@gnu.org
> 
> On Sun, 8 Dec 2024 at 12:43, Eli Zaretskii <eliz@gnu.org> wrote:
> 
> > > > Is compilation-transform-file-match-alist what you are looking for?
> > >
> > > The variable talks only about errors. Does it apply to all messages not just
> > > the errors?
> >
> > It is applied to all messages.
> 
> In my experience, it is not applied to messages as such. It is
> consulted when building text properties while fontifying the messages
> so that the user can jump to error locations; but the actual visible
> text in the buffer remains unmodified.

Yes.  As its doc string says.