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bug#18133: Suppressing asynchronous command output


From: Reuben Thomas
Subject: bug#18133: Suppressing asynchronous command output
Date: Wed, 30 Jul 2014 10:48:33 +0100

On 30 July 2014 10:16, Reuben Thomas <address@hidden> wrote:

  (add-to-list 'display-buffer-alist '("\\*Async Shell Command\\*"
                                       display-buffer-no-window (nil)))

  (advice-add 'comint-output-filter :after
              (lambda (process string)
                (when (and (string-match-p "\\*Async Shell Command\\*"
                                           (buffer-name (process-buffer process))))
                  (display-buffer (process-buffer process)))))

Thanks very much. The second form seems like the "right" one: when running a command asynchronously, output should be immediately visible.

Unfortunately, this code relies on features in the upcoming 24.4. I've rewritten it to work in 24.3, and fixed a bug:

(add-to-list 'display-buffer-alist '("\\*Async Shell Command\\*"
                                     display-buffer-no-window (allow-no-window . t)))

(defadvice comint-output-filter (after delay-ashell-sync-command-output (process string))
  "Stop Async Shell Command output from appearing until there is some output"
  (when (and (string-match-p "\\*Async Shell Command\\*"
                             (buffer-name (process-buffer process))))
    (display-buffer (process-buffer process))))

The argument to display-buffer-no-window now uses allow-no-window as it should, and I've rewritten the call to advice-add as a defadvice.

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