GNU bug report logs - #62935
29.0.90; icomplete-vertical-mode misses add-file-local-variable alternative

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Van Ly <van.ly <at> sdf.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.90;
 icomplete-vertical-mode misses add-file-local-variable alternative
Date: Tue, 18 Apr 2023 14:53:54 GMT

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

The icomplete-vertical-mode does not list buffer-save-without-query as an option to add-file-local-variable after the input prefix buffer- .

Steps to reproduce
 - emacs -Q
 - switch to buffer bbb, C-x b bbb RET
 - enable completion mode, M-x icomplete-vertical-mode
 - add file local variable, M-x add-file-local-variable abbreviated by
   = M-x add-fi C-j
   = buffer- [does not list completion buffer-save-without-query]
   = alternatives listed are
     - buffer-read-only
     - buffer-offer-save

Expected behavior
 - completion mode lists buffer-save-without-query
   = example of desired completion listing
     - buffer-read-only
     - buffer-offer-save
     - buffer-save-without-query

Unexpected behavior
 - completion mode lists two alternatives without desired option
   = observed completion listing
     - buffer-read-only
     - buffer-offer-save

[bug-gnu-emacs-report.text (application/octet-stream, attachment)]

Message #8 received at 62935 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Van Ly <van.ly <at> sdf.org>
Cc: 62935 <at> debbugs.gnu.org
Subject: Re: bug#62935: 29.0.90;
 icomplete-vertical-mode misses add-file-local-variable alternative
Date: Tue, 18 Apr 2023 18:53:01 +0300

> Date: Tue, 18 Apr 2023 14:53:54 GMT
> From: Van Ly <van.ly <at> sdf.org>
> 
> The icomplete-vertical-mode does not list buffer-save-without-query as an option to add-file-local-variable after the input prefix buffer- .
> 
> Steps to reproduce
>  - emacs -Q
>  - switch to buffer bbb, C-x b bbb RET
>  - enable completion mode, M-x icomplete-vertical-mode
>  - add file local variable, M-x add-file-local-variable abbreviated by
>    = M-x add-fi C-j
>    = buffer- [does not list completion buffer-save-without-query]
>    = alternatives listed are
>      - buffer-read-only
>      - buffer-offer-save
> 
> Expected behavior
>  - completion mode lists buffer-save-without-query
>    = example of desired completion listing
>      - buffer-read-only
>      - buffer-offer-save
>      - buffer-save-without-query
> 
> Unexpected behavior
>  - completion mode lists two alternatives without desired option
>    = observed completion listing
>      - buffer-read-only
>      - buffer-offer-save

add-file-local-variable completes only on variables that are safe as
local variables, and buffer-save-without-query is not.  So you need to
type its name completely.

This is not a bug.

Message #11 received at 62935 <at> debbugs.gnu.org (full text, mbox):

From: Van Ly <van.ly <at> sdf.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 62935 <at> debbugs.gnu.org
Subject: Re: bug#62935: 29.0.90;
 icomplete-vertical-mode misses add-file-local-variable alternative
Date: Thu, 20 Apr 2023 18:38:54 GMT

> Date: Tue, 18 Apr 2023 18:53:01 +0300
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: 62935 <at> debbugs.gnu.org
> 
> 
> add-file-local-variable completes only on variables that are safe as
> local variables, and buffer-save-without-query is not.  So you need to
> type its name completely.
> 

I see why.  Maybe unsafe options can allow an override to appear in
grey faded font.  There could be an explainer dialogue for what is unsafe.

I use buffer-save-without-query on scratch files.

Message #14 received at 62935 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Kangas <stefankangas <at> gmail.com>
To: Van Ly <van.ly <at> sdf.org>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 62935 <at> debbugs.gnu.org
Subject: Re: bug#62935: 29.0.90; icomplete-vertical-mode misses
 add-file-local-variable alternative
Date: Mon, 11 Sep 2023 16:21:41 -0700

tags 62935 notabug wontfix
close 62935
thanks

Van Ly <van.ly <at> sdf.org> writes:

>> Date: Tue, 18 Apr 2023 18:53:01 +0300
>> From: Eli Zaretskii <eliz <at> gnu.org>
>> Cc: 62935 <at> debbugs.gnu.org
>>
>>
>> add-file-local-variable completes only on variables that are safe as
>> local variables, and buffer-save-without-query is not.  So you need to
>> type its name completely.
>>
>
> I see why.  Maybe unsafe options can allow an override to appear in
> grey faded font.  There could be an explainer dialogue for what is unsafe.
>
> I use buffer-save-without-query on scratch files.

I tend to agree with Eli here, and I don't think we want to add unsafe
options there, as it will be too confusing.  So I'm closing this bug.

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