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- Newsgroups: gnu.emacs.sources
- Path: sparky!uunet!cis.ohio-state.edu!fly.cnuce.cnr.it!pot
- From: pot@fly.cnuce.cnr.it (Francesco Potorti`)
- Subject: emacs elisp files for gopher
- Message-ID: <m0n1wvB-0001C7C@fly.cnuce.cnr.IT>
- Sender: daemon@cis.ohio-state.edu
- Reply-To: pot@cnuce.cnr.it
- Organization: Source only Discussion and requests in gnu.emacs.help.
- References: <MARCA.92Dec12210219@wintermute.ncsa.uiuc.edu>
- Distribution: gnu
- Date: Wed, 16 Dec 1992 13:28:00 GMT
- Lines: 89
-
- A more up to date background.el version that fixes some bugs follows.
- Someone from the dired mailing list sent it to me. It should probably
- replace the old one in the elisp archive:
-
- ;; Fun with background jobs.
- ;; Copyright (C) 1988 Joe Keane <jk3k+@andrew.cmu.edu>
- ;; Refer to the GNU Emacs General Public License for copyright info.
-
- ;; - Adapted to use comint and cleaned up somewhat. Olin Shivers 5/90
- ;; - Background failed to set the process buffer's working directory
- ;; in some cases. Fixed. Olin 6/14/90
- ;; - Background failed to strip leading cd's off the command string
- ;; after performing them. This screwed up relative pathnames.
- ;; Furthermore, the proc buffer's default dir wasn't initialised
- ;; to the user's buffer's default dir before doing the leading cd.
- ;; This also screwed up relative pathnames if the proc buffer already
- ;; existed and was set to a different default dir. Hopefully we've
- ;; finally got it right. The pwd is now reported in the buffer
- ;; just to let the user know. Bug reported by Piet Van Oostrum.
- ;; Olin 10/19/90
-
- (provide 'background)
- (require 'comint)
-
- ;; user variables
- (defvar background-show t
- "*If non-nil, background jobs' buffers are shown when they're started.")
- (defvar background-select nil
- "*If non-nil, background jobs' buffers are selected when they're started.")
-
- (defun background (command)
- "Run COMMAND in the background like csh.
- A message is displayed when the job starts and finishes. The buffer is in
- comint mode, so you can send input and signals to the job. The process object
- is returned if anyone cares. See also comint-mode and the variables
- background-show and background-select."
- (interactive "s%% ")
- (let ((job-number 1)
- (job-name "%1")
- (dir default-directory))
- (while (process-status job-name)
- (setq job-name (concat "%" (setq job-number (1+ job-number)))))
- (if background-select (pop-to-buffer job-name)
- (if background-show (with-output-to-temp-buffer job-name)) ; cute
- (set-buffer (get-buffer-create job-name)))
- (erase-buffer)
- (setq default-directory dir) ; Do this first, in case cd is relative path.
- (cond ((string-match "^cd[\t ]+\\([^\t ;]+\\)[\t ]*;[\t ]*" command)
- (setq dir (substring command (match-beginning 1) (match-end 1))
- command (substring command (match-end 0)))
- (setq default-directory
- (file-name-as-directory
- (expand-file-name dir)))))
- (insert "--- working directory: " default-directory
- "\n% " command ?\n)
- (let ((proc (get-buffer-process
- (comint-exec job-name job-name shell-file-name
- nil (list "-c" command)))))
- (comint-mode)
- ;; COND because the proc may have died before the G-B-P is called.
- (cond (proc (set-process-sentinel proc 'background-sentinel)
- (message "[%d] %d" job-number (process-id proc))))
- (setq mode-name "Background")
- proc)))
-
- (defun background-sentinel (process msg)
- "Called when a background job changes state."
- (let ((msg (cond ((string= msg "finished\n") "Done")
- ((string-match "^exited" msg)
- (concat "Exit " (substring msg 28 -1)))
- ((zerop (length msg)) "Continuing")
- (t (concat (upcase (substring msg 0 1))
- (substring msg 1 -1))))))
- (message "[%s] %s %s" (substring (process-name process) 1)
- msg
- (nth 2 (process-command process)))
- (if (null (buffer-name (process-buffer process)))
- (set-process-buffer process nil) ; WHY? Olin.
- (if (memq (process-status process) '(signal exit))
- (save-excursion
- (set-buffer (process-buffer process))
- (let ((at-end (eobp)))
- (save-excursion
- (goto-char (point-max))
- (insert ?\n msg ?
- (substring (current-time-string) 11 19) ?\n))
- (if at-end (goto-char (point-max))))
- (set-buffer-modified-p nil))))))
-
-