* bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer
@ 2014-08-24 18:34 Joe Corneli
2014-08-25 15:03 ` Stefan Monnier
0 siblings, 1 reply; 7+ messages in thread
From: Joe Corneli @ 2014-08-24 18:34 UTC (permalink / raw)
To: 18326
The docs for `async-shell-command' say:
(async-shell-command COMMAND &optional OUTPUT-BUFFER ERROR-BUFFER)
[...]
To run COMMAND without displaying the output in a window you can
configure `display-buffer-alist' to use the action
`display-buffer-no-window' for the buffer `*Async Shell Command*'.
Referring to further docs and a recent discussion on this list,
https://lists.gnu.org/archive/html/bug-gnu-emacs/2014-07/msg00935.html
I see that that boils down to a setting like this:
(setq display-buffer-alist
'(("\\*Async Shell Command\\*" . (display-buffer-no-window
. ((allow-no-window . t))))))
So, I've made that setting, expecting that it means that the Async Shell
Command buffer will not appear. But then, defining the following
function and running the snippet that follows gives me an error:
(defun sudo-shell-command (command)
(interactive "MShell command (root): ")
(with-temp-buffer
(cd "/sudo::/")
(async-shell-command command)))
(sudo-shell-command "touch /dev/null")
byte-code: Wrong type argument: window-live-p, nil
...Is that really to be expected?
As a work-around: if I return to the default setting for
`display-buffer-alist' and define my function this way, there is
no error and, as desired, the buffer doesn't display:
(setq display-buffer-alist nil)
(defun sudo-shell-command (command)
(interactive "MShell command (root): ")
(save-window-excursion
(with-temp-buffer
(cd "/sudo::/")
(async-shell-command command))))
(sudo-shell-command "touch /dev/null")
I get the message:
nil: finished.
I might have expect to see:
touch /dev/null: finished.
but at least there's no error!
In GNU Emacs 24.4.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.10.8)
of 2014-08-09 on Teacup
Repository revision: 117674 rrt@sc3d.org-20140809165943-i667kjxzdst2ey4c
Windowing system distributor `The X.Org Foundation', version 11.0.11501000
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Recent messages:
nil: finished.
https://lists.gnu.org/archive/html/bug-gnu-emacs/2014-07/msg00935.html
Mark set
~/emacs
~/emacs/src
You can run the command `about-emacs' with C-h C-a
o is undefined
https://lists.gnu.org/archive/html/bug-gnu-emacs/2014-07/msg00935.html
Mark set [3 times]
Making completion list... [2 times]
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^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer
2014-08-24 18:34 bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer Joe Corneli
@ 2014-08-25 15:03 ` Stefan Monnier
2014-08-26 22:59 ` Joe Corneli
0 siblings, 1 reply; 7+ messages in thread
From: Stefan Monnier @ 2014-08-25 15:03 UTC (permalink / raw)
To: Joe Corneli; +Cc: 18326
> (setq display-buffer-alist
> '(("\\*Async Shell Command\\*" . (display-buffer-no-window
> . ((allow-no-window . t))))))
The allow-no-window option should be passed by the *caller*.
You shouldn't need it and don't want it here.
Stefan
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer
2014-08-25 15:03 ` Stefan Monnier
@ 2014-08-26 22:59 ` Joe Corneli
2014-08-26 23:31 ` Glenn Morris
0 siblings, 1 reply; 7+ messages in thread
From: Joe Corneli @ 2014-08-26 22:59 UTC (permalink / raw)
To: Stefan Monnier; +Cc: 18326
Hi Stefan:
I tried this:
(setq display-buffer-alist
'(("\\*Async Shell Command\\*" . (display-buffer-no-window . nil))))
(defun sudo-shell-command (command)
(interactive "MShell command (root): ")
(with-temp-buffer
(cd "/sudo::/")
(async-shell-command command)))
(sudo-shell-command "touch /dev/null")
The buffer still pops up.
The docs say:
(async-shell-command COMMAND &optional OUTPUT-BUFFER ERROR-BUFFER)
[...]
To run COMMAND without displaying the output
in a window you can configure `display-buffer-alist' to use the action
`display-buffer-no-window' for the buffer `*Async Shell Command*'.
OK, would be be able to tell me how I do that? It seems that I've now
tried two seemingly sensible ways to do this configuration, and the
docs led me to the previous configuration, and not clearly to anything
else.
display-buffer-alist is a variable defined in `window.el'.
[...]
This is a list of elements (CONDITION . ACTION), where:
CONDITION is either a regexp matching buffer names, or a
function that takes two arguments - a buffer name and the
ACTION argument of `display-buffer' - and returns a boolean.
ACTION is a cons cell (FUNCTION . ALIST), where FUNCTION is a
function or a list of functions. Each such function should
accept two arguments: a buffer to display and an alist of the
same form as ALIST. See `display-buffer' for details.
(display-buffer-no-window BUFFER ALIST)
[...]
Display BUFFER in no window.
If ALIST has a non-nil `allow-no-window' entry, then don't display
a window at all.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer
2014-08-26 22:59 ` Joe Corneli
@ 2014-08-26 23:31 ` Glenn Morris
2014-08-28 6:42 ` Joe Corneli
0 siblings, 1 reply; 7+ messages in thread
From: Glenn Morris @ 2014-08-26 23:31 UTC (permalink / raw)
To: Joe Corneli; +Cc: 18326
The example from http://debbugs.gnu.org/13594#185 works for me.
(add-to-list 'display-buffer-alist '("\\*Async Shell Command\\*"
display-buffer-no-window (nil)))
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer
2014-08-26 23:31 ` Glenn Morris
@ 2014-08-28 6:42 ` Joe Corneli
2014-08-28 15:45 ` Glenn Morris
0 siblings, 1 reply; 7+ messages in thread
From: Joe Corneli @ 2014-08-28 6:42 UTC (permalink / raw)
To: Glenn Morris; +Cc: 18326
Glenn Morris writes:
> The example from http://debbugs.gnu.org/13594#185 works for me.
>
> (add-to-list 'display-buffer-alist '("\\*Async Shell Command\\*"
> display-buffer-no-window (nil)))
Using that snippet, I'm still seeing a window pop up containing the
contents of /etc/shadow when I run:
emacs -Q -l start-up.el
M-x sudo-test RET
<password> RET
where start-up.el contains the following code:
(add-to-list 'display-buffer-alist '("\\*Async Shell Command\\*"
display-buffer-no-window (nil)))
(defun sudo-shell-command (command)
(interactive "MShell command (root): ")
(with-temp-buffer
(cd "/sudo::/")
(async-shell-command command)))
(defun sudo-test ()
(interactive)
(sudo-shell-command "cat /etc/shadow"))
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer
2014-08-28 6:42 ` Joe Corneli
@ 2014-08-28 15:45 ` Glenn Morris
2014-08-28 19:33 ` Michael Albinus
0 siblings, 1 reply; 7+ messages in thread
From: Glenn Morris @ 2014-08-28 15:45 UTC (permalink / raw)
To: Joe Corneli; +Cc: 18326
Works for me without sudo (eg cd /tmp instead). Maybe it's a sudo/tramp thing.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer
2014-08-28 15:45 ` Glenn Morris
@ 2014-08-28 19:33 ` Michael Albinus
0 siblings, 0 replies; 7+ messages in thread
From: Michael Albinus @ 2014-08-28 19:33 UTC (permalink / raw)
To: Glenn Morris; +Cc: Joe Corneli, 18326
Glenn Morris <rgm@gnu.org> writes:
> Works for me without sudo (eg cd /tmp instead). Maybe it's a sudo/tramp thing.
`tramp-handle-shell-command' didn't use `display-buffer'. I've changed
that in the trunk.
Best regards, Michael.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2014-08-28 19:33 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-08-24 18:34 bug#18326: 24.4.50; allow-no-window for async-shell-command in temp buffer Joe Corneli
2014-08-25 15:03 ` Stefan Monnier
2014-08-26 22:59 ` Joe Corneli
2014-08-26 23:31 ` Glenn Morris
2014-08-28 6:42 ` Joe Corneli
2014-08-28 15:45 ` Glenn Morris
2014-08-28 19:33 ` Michael Albinus
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