GNU bug report logs - #19495
25.0.50; `message` -- optional argument to suppress echo area display

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From: Keith David Bershatsky <esq <at> lawlist.com>
To: 19495 <at> debbugs.gnu.org
Subject: bug#19495: 25.0.50; `message` -- optional argument to suppress echo area display
Date: Sat, 03 Jan 2015 09:50:08 -0800

As a feature request, the Emacs team may wish to consider adding an optional argument to the `message` function to permit suppression of the message being displayed in the echo area.

In my particular use case, there are certain process output strings that I prefer having printed to the `*Messages*` buffer -- instead of a dedicated process output buffer.

(defun rsync-process-filter (proc string)
  (when (not (or
      (string-match "files...\r" string)
      (string-match "files to consider\n" string)))
    (message "%s" string)))

The above example also displays in the echo area, which makes using interactive commands problematic while the ongoing process continues to print messages.  Each time a new message is generated by the ongoing process, the interactive prompt and potential minibuffer completions get erased by the message -- e.g., `execute-extended-command` or `switch-to-buffer-other-window`.

The following is my workaround:

(defun rsync-process-filter (proc string)
  (let ((inhibit-read-only t))
    (when (not (or
        (string-match "files...\r" string)
        (string-match "files to consider\n" string)))
      (with-current-buffer (get-buffer-create "*Messages*")
        (goto-char (point-max))
        (insert string)))))

Here are links to a couple of threads regarding this issue:

http://superuser.com/questions/669701/emacs-disable-some-minibuffer-messages

http://emacs.stackexchange.com/questions/5959/send-process-output-to-messages-buffer-but-bypass-the-echo-area

Thanks,

Keith

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In GNU Emacs 25.0.50.1 (x86_64-apple-darwin10.8.0, NS appkit-1038.36 Version 10.6.8 (Build 10K549))
 of 2014-10-01 on MP.local
Repository revision: 117996 dmantipov <at> yandex.ru-20141001132108-zdsxru2390mqyjlu
Windowing system distributor `Apple', version 10.3.1038
Configured using:
 `configure --with-ns'

Configured features:
ACL LIBXML2 ZLIB

Important settings:
  locale-coding-system: utf-8-unix

Major mode: Fundamental

Minor modes in effect:
  sd-mode: t
  sb-mode: t
  tb-mode: t
  shell-dirtrack-mode: t
  cm-mode: t
  frame-bufs-mode: t
  bc-mode: t
  ds-mode: t
  ml-mode: t

Recent input:
s-a <backspace> s-s <escape> x e m a c s <backspace> 
<backspace> <backspace> <backspace> <backspace> r e 
p o r t - e m a c s <tab> b u g <tab> <return>

Recent messages:
Emacs -[q] | [d]efault.  (2) seconds
Emacs -[q] | [d]efault.  (1) seconds
Emacs -[q] | [d]efault.  (0) seconds
The default.
Loading /Users/HOME/.0.data/.0.emacs/.0.lisp/lawlist-test.el (source)...done
Loading /Users/HOME/.0.data/.0.emacs/.0.lisp/init.el (source)...done
Wrote /Users/HOME/.0.data/.0.emacs/.lock
Mark set [2 times]
Saving file /Users/HOME/.0.data/.0.emacs/.scratch...
Wrote /Users/HOME/.0.data/.0.emacs/.scratch

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/Users/HOME/.0.data/.0.emacs/.0.wl/pgg-def hides /Users/HOME/.0.data/.0.emacs/Emacs_10_01_2014.app/Contents/Resources/lisp/obsolete/pgg-def

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Memory information:
((conses 16 1327172 86464)
 (symbols 48 62533 0)
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 (strings 32 145131 28469)
 (string-bytes 1 4682371)
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