messages that behave like tail -f ?

messages that behave like tail -f ?

[Joe Corneli]

How to keep the message window scrolling up as new messages appear?
Ideally the last line of text in the *Messages* buffer would always
be on the last line of the corresponding window.

Re: messages that behave like tail -f ?

[lawrence mitchell]

Joe Corneli wrote:

> How to keep the message window scrolling up as new messages appear?
> Ideally the last line of text in the *Messages* buffer would always
> be on the last line of the corresponding window.

You could add a call to `recenter' to window-scroll-functions in
the *Messages* buffer.

e.g.

(with-current-buffer (get-buffer "*Messages*")
  (add-hook 'window-scroll-functions (lambda () (recenter -1))))

-- 
lawrence mitchell <wence@gmx.li>

Re: messages that behave like tail -f ?

[Joe Corneli]

   You could add a call to `recenter' to window-scroll-functions in
   the *Messages* buffer.
   
   e.g.
   
   (with-current-buffer (get-buffer "*Messages*") 
     (add-hook 'window-scroll-functions (lambda () (recenter -1))))

This is elegant, but there are two problems with it.  First,

 Each [window-scroll-function] is called with *two arguments*,
 the window and its new display-start position.

Second, if I put in "dummy" arguments, viz.,

   (with-current-buffer (get-buffer "*Messages*") 
     (add-hook 'window-scroll-functions (lambda (arg1 arg2) 
                                                (recenter -1))))

(this might be surprising?) -- it only works when *Messages* is the
current buffer (which isn't a great improvement on the default
behavior).