GNU bug report logs - #47493
27.1; auto-save-file-name-transforms with uniquify should not create invalid filenames

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Message #16 received at 47493 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: Vladimir Nikishkin <lockywolf <at> gmail.com>, 47493 <at> debbugs.gnu.org
Subject: Re: bug#47493: 27.1;
 auto-save-file-name-transforms with uniquify should not create
 invalid filenames
Date: Tue, 06 Apr 2021 16:57:54 -0400

Michael Albinus wrote:

> Nobody has commented. 

You asked for an example of why this was needed; I was waiting to hear
the answer.

> + If the optional element UNIQUIFY is a symbol returned by function
> + `secure-hash-algorithms', the auto-save file name is constructed
> + by taking the directory part of the replaced file-name,
> + concatenated with the buffer file name run through `secure-hash'
> + instead.  This returns a valid name for your filesystem any way.

Grammar tweaks:

If UNIQUIFY is one of the members of `secure-hash-algorithms',
Emacs constructs the nondirectory part of the auto-save file name by
applying that `secure-hash' to the buffer file name. This avoids any
risk of excessively long file names.

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