GNU bug report logs - #66663
30.0.50; Allow dir locals file selection in *-dir-local-variable functions

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From: Mauro Aranda <maurooaranda <at> gmail.com>
To: Juri Linkov <juri <at> linkov.net>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 66663 <at> debbugs.gnu.org
Subject: bug#66663: 30.0.50; Allow dir locals file selection in *-dir-local-variable functions
Date: Sat, 21 Oct 2023 19:10:10 -0300

[Message part 1 (text/plain, inline)]

On 21/10/23 15:21, Juri Linkov wrote:
>> +(defun read-dir-locals-file ()
>> +  "Read a dir-locals filename using completion.
>> +Intended to be used in the `interactive' spec of 
`add-dir-local-variable',
>> +`delete-dir-local-variable' and `copy-file-locals-to-dir-locals'.
>> +
>> +Returns the filename, expanded."
>> +  (expand-file-name
>> +   (read-file-name "File" nil nil
>
> The prompt needs a colon.

Fixed.

>> +                   (lambda (fname)
>> +                     (member (file-name-nondirectory fname)
>> +                             (list dir-locals-file
>> + (replace-regexp-in-string
>> +                                    ".el$" "-2.el" dir-locals-file))))
>> +                   dir-locals-file)))
>
> This needs to be run in the project's root directory
> where the dir-locals file is saved.  Probably it's not easy
> to find the root without using project.el.  But when one of the
> files already exists (either .dir-locals.el or .dir-locals-2.el),
> then better to use the directory of the existing file by default.

In this new patch, I went for using it if already available and we
couldn't find an existing file by other means.

[0001-Allow-specifying-the-dir-locals-file-to-edit-Bug-666.patch (text/x-patch, attachment)]

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