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ol-eshell.el (2552B)


      1 ;;; ol-eshell.el --- Links to Working Directories in Eshell  -*- lexical-binding: t; -*-
      2 
      3 ;; Copyright (C) 2011-2024 Free Software Foundation, Inc.
      4 
      5 ;; Author: Konrad Hinsen <konrad.hinsen AT fastmail.net>
      6 
      7 ;; This file is part of GNU Emacs.
      8 
      9 ;; GNU Emacs is free software: you can redistribute it and/or modify
     10 ;; it under the terms of the GNU General Public License as published by
     11 ;; the Free Software Foundation, either version 3 of the License, or
     12 ;; (at your option) any later version.
     13 
     14 ;; GNU Emacs is distributed in the hope that it will be useful,
     15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
     16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17 ;; GNU General Public License for more details.
     18 
     19 ;; You should have received a copy of the GNU General Public License
     20 ;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
     21 
     22 ;;; Commentary:
     23 
     24 ;;; Code:
     25 
     26 (require 'org-macs)
     27 (org-assert-version)
     28 
     29 (require 'eshell)
     30 (require 'esh-mode)
     31 (require 'ol)
     32 
     33 (declare-function eshell/pwd "em-dirs.el" (&rest args))
     34 
     35 (org-link-set-parameters "eshell"
     36 			 :follow #'org-eshell-open
     37 			 :store #'org-eshell-store-link)
     38 
     39 (defun org-eshell-open (link _)
     40   "Switch to an eshell buffer and execute a command line for LINK.
     41 The LINK can be just a command line (executed in the default
     42 eshell buffer) or a command line prefixed by a buffer name
     43 followed by a colon."
     44   (let* ((buffer-and-command
     45           (if (string-match "\\([A-Za-z0-9+*-]+\\):\\(.*\\)" link)
     46 	      (list (match-string 1 link)
     47 		    (match-string 2 link))
     48             (list eshell-buffer-name link)))
     49          (eshell-buffer-name (car buffer-and-command))
     50          (command (cadr buffer-and-command)))
     51     (if (get-buffer eshell-buffer-name)
     52         (pop-to-buffer
     53          eshell-buffer-name
     54          (if (boundp 'display-comint-buffer-action) ; Emacs >= 29
     55              display-comint-buffer-action
     56            '(display-buffer-same-window (inhibit-same-window))))
     57       (eshell))
     58     (goto-char (point-max))
     59     (eshell-kill-input)
     60     (insert command)
     61     (eshell-send-input)))
     62 
     63 (defun org-eshell-store-link (&optional _interactive?)
     64   "Store eshell link.
     65 When opened, the link switches back to the current eshell buffer and
     66 the current working directory."
     67   (when (eq major-mode 'eshell-mode)
     68     (let* ((command (concat "cd " (eshell/pwd)))
     69            (link  (concat (buffer-name) ":" command)))
     70       (org-link-store-props
     71        :link (concat "eshell:" link)
     72        :description command))))
     73 
     74 (provide 'ol-eshell)
     75 
     76 ;;; ol-eshell.el ends here