How to open file unconditionally?

How to open file unconditionally?

[Jean Louis]

I wish to open file unconditionally. In my case I am opening
dynamically generated pictures. Once picture is in Emacs, another
dynamic picture is generated. I wish that find-file does not ask me
yes/no when opening a file that already has a buffer. I want to simply
open it without disturbance.

I have tried following:

	     (let ((confirm-nonexistent-file-or-buffer 1))
	       (find-file svg)))))))

but that does not get noticed by find-file


--
Jean

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Re: How to open file unconditionally?

[Thibaut Verron]

Le dim. 16 oct. 2022 à 11:16, Jean Louis <bugs@gnu.support> a écrit :

> I wish to open file unconditionally. In my case I am opening
> dynamically generated pictures. Once picture is in Emacs, another
> dynamic picture is generated. I wish that find-file does not ask me
> yes/no when opening a file that already has a buffer. I want to simply
> open it without disturbance.
>

Unless I'm mistaken, this message will only appear if the buffer or the
file has been modified.

Do you want to switch to the existing buffer, or create a new buffer?

If it is the latter, this answer should do it:
https://emacs.stackexchange.com/a/52513/184

If it is the former, and assuming that you want to show the on-disk content
of the file, find-file-noselect has a 'nowarn second argument disabling the
prompt.
So (switch-to-buffer (find-file-noselect FILE t)) should work.



>
> I have tried following:
>
>              (let ((confirm-nonexistent-file-or-buffer 1))
>                (find-file svg)))))))
>
> but that does not get noticed by find-file
>

confirm-nonexistent-file-or-buffer seems to be about the opposite problem,
whether to query when the file/buffer does not exist, rather than create a
new one.

Best wishes,
Thibaut

Re: How to open file unconditionally?

[Jean Louis]

* Thibaut Verron <thibaut.verron@gmail.com> [2022-10-16 13:30]:
> 
> If it is the latter, this answer should do it:
> https://emacs.stackexchange.com/a/52513/184

That solution is incomplete. I am opening image, the above solution is showing me the source of the SVG file, and not the SVG as image.

> If it is the former, and assuming that you want to show the on-disk content
> of the file, find-file-noselect has a 'nowarn second argument disabling the
> prompt.
> So (switch-to-buffer (find-file-noselect FILE t)) should work.

I have tried the above one, it does not overwrite the file in
buffer. It switches to the buffer. But newly modified picture is not
loaded.

Do you have other idea?

-- 
Jean

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https://www.fsf.org/campaigns

In support of Richard M. Stallman
https://stallmansupport.org/

Re: How to open file unconditionally?

[Thibaut Verron]

Le lun. 17 oct. 2022 à 06:05, Jean Louis <bugs@gnu.support> a écrit :

> * Thibaut Verron <thibaut.verron@gmail.com> [2022-10-16 13:30]:
> >
> > If it is the latter, this answer should do it:
> > https://emacs.stackexchange.com/a/52513/184
>
> That solution is incomplete. I am opening image, the above solution is
> showing me the source of the SVG file, and not the SVG as image.
>

Crude answer: turning on image-mode (or whatever you use, I don't really
know how people use emacs for images) in the new buffer should work.
A more surgical answer would have to go through auto-mode-alist,
magic-mode-alist and interpreter-mode-alist to select the correct mode for
the new buffer.


>
> > If it is the former, and assuming that you want to show the on-disk
> content
> > of the file, find-file-noselect has a 'nowarn second argument disabling
> the
> > prompt.
> > So (switch-to-buffer (find-file-noselect FILE t)) should work.
>
> I have tried the above one, it does not overwrite the file in
> buffer. It switches to the buffer. But newly modified picture is not
> loaded.
>

Does adding a (revert-buffer nil t) work?

If you always want to load the new picture as soon as it's generated,
enabling auto-revert-mode in the buffer would also do the trick.

Thibaut