elisp: howto save not-visible buffer

elisp: howto save not-visible buffer

[Michal]

Hallo,
 can I save buffer that is not current one?

something like that:
(setq buf (find-file-noselect "/some/file"))
(save-buffer buf)

I see that 'save-buffer' does not get any parameter:(

best regards
Michal

Re: elisp: howto save not-visible buffer

[Anselm Helbig]

Hi!

> Hallo,
>  can I save buffer that is not current one?
> 
> something like that:
> (setq buf (find-file-noselect "/some/file"))
> (save-buffer buf)
> 
> I see that 'save-buffer' does not get any parameter:(

Well, then you should make the buffer you want to save the current one:

  (save-excursion 
    (set-buffer (setq buf (find-file-noselect "/some/file")))
    (save-buffer buf))

save-excursion will make sure that the current buffer is restored when
you're done.

HTH, 

Anselm


-- 
Anselm Helbig 
mailto:anselm.helbig+news2009@googlemail.com

Re: elisp: howto save not-visible buffer

[Nikolaj Schumacher]

Michal <rabbitko@tenbit.pl> wrote:

>  can I save buffer that is not current one?
>
> something like that:
> (setq buf (find-file-noselect "/some/file"))
> (save-buffer buf)

(with-current-buffer (find-file-noselect "/some/file"))
  (save-buffer))

But what you really want to do is probably:

(let ((buf (find-buffer-visiting "/some-file")))
  (when buf
    (with-current-buffer buf
      (save-buffer))))

Because you probably don't want to find the file if it isn't already
open.

regards,
Nikolaj Schumacher

Re: elisp: howto save not-visible buffer

[Michal]

Nikolaj Schumacher <me@nschum.de> writes:

> Michal <rabbitko@tenbit.pl> wrote:
>
>>  can I save buffer that is not current one?
>>
>> something like that:
>> (setq buf (find-file-noselect "/some/file"))
>> (save-buffer buf)
>
> (with-current-buffer (find-file-noselect "/some/file"))
>   (save-buffer))
>
> But what you really want to do is probably:
>
> (let ((buf (find-buffer-visiting "/some-file")))
>   (when buf
>     (with-current-buffer buf
>       (save-buffer))))
>
> Because you probably don't want to find the file if it isn't already
> open.
>

Nikolaj, Thanks for Your help!

best regards,
Michal