GNU bug report logs - #79163
30.1; [PATCH] Handle remote file names in cmuscheme.el

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Vinícius Moraes <vinicius.moraes <at> eternodevir.com>, Michael Albinus <michael.albinus <at> gmx.de>
Cc: 79163 <at> debbugs.gnu.org
Subject: bug#79163: 30.1; [PATCH] Handle remote file names in cmuscheme.el
Date: Mon, 04 Aug 2025 14:55:25 +0300

> Date: Sun, 03 Aug 2025 00:48:59 +0000
> From:  Vinícius Moraes via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
> 
> I came across a minor problem while using `scheme-load-file' from
> `cmuscheme.el' via TRAMP.[tldr-recipe]
> 
> As I understand it, currently, `scheme-load-file' sends the file-name
> directly to the Scheme interpreter (through `comint-send-string')
> without removing TRAMP's remote file name syntax. This seems to make the
> interpreter on a remote system (or, in this case, a container) attempt
> to load an incorrect file name.
> 
> For example:
> #;1>
> Error: (load) cannot open file: "/podman:demo:/home/t/example.scm"
> [...]
> <eval> (load "/podman:demo:/home/t/example.scm") <--
> 
> (See [tldr-recipe] for the non-simplified/real values and recipe. I was
> able to reproduce it with a VM and the `ssh' method as well).
> 
> Expected outcome: (load "/home/t/example.scm")
> 
> Since `file-local-name' returns the string/argument unaltered for
> non-remote file names[1], I _think_ this change should not affect the
> current/correct behavior for non-remote scenarios. (`shell' seems to use
> a similar approach with `file-local-name' and `expand-file-name' on
> remote hosts; I decided to not include `expand-file-name' here because,
> in my understanding, `comint-get-source' is already handling the
> expansion[2]).
> 
> For consistency, I applied the same fix to the `scheme-compile-file'
> function as well---since the logic is almost the same.
> 
> I have been using this patch downstream without problems, but tackling
> it upstream (for multiple Scheme implementations and workflows) could be
> a different story. In any case, I hope this report helps. Let me know if
> you have any questions or suggestions.

Thanks.

Michael, any comments or suggestions?

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