mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-08-25 19:33:06 +00:00
I started from the 78ec8e commit then cherry-picked and squashed commits that have been done in master since then, except the bad commits that overwrote the tree (in master) with the tree in maint. This commit also bumps the version number to 7.8.06. The only "fix" that was made between 78ec8e and the previous commit is e0072f which has been reported to break stuff.
272 lines
9 KiB
EmacsLisp
272 lines
9 KiB
EmacsLisp
;;; org-registry.el --- a registry for Org links
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;;
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;; Copyright 2007-2012 Bastien Guerry
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;;
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;; Emacs Lisp Archive Entry
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;; Filename: org-registry.el
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;; Version: 0.1a
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;; Author: Bastien Guerry <bzg AT gnu DOT org>
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;; Maintainer: Bastien Guerry <bzg AT gnu DOT org>
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;; Keywords: org, wp, registry
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;; Description: Shows Org files where the current buffer is linked
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;; URL: http://www.cognition.ens.fr/~guerry/u/org-registry.el
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;;
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; if not, write to the Free Software
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;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;;
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;; This library add a registry to your Org setup.
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;;
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;; Org files are full of links inserted with `org-store-link'. This links
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;; point to e-mail, webpages, files, dirs, info pages, man pages, etc.
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;; Actually, they come from potentially *everywhere* since Org lets you
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;; define your own storing/following functions.
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;;
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;; So, what if you are on a e-mail, webpage or whatever and want to know if
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;; this buffer has already been linked to somewhere in your agenda files?
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;;
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;; This is were org-registry comes in handy.
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;;
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;; M-x org-registry-show will tell you the name of the file
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;; C-u M-x org-registry-show will directly jump to the file
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;;
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;; In case there are several files where the link lives in:
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;;
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;; M-x org-registry-show will display them in a new window
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;; C-u M-x org-registry-show will prompt for a file to visit
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;;
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;; Add this to your Org configuration:
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;;
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;; (require 'org-registry)
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;; (org-registry-initialize)
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;;
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;; If you want to update the registry with newly inserted links in the
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;; current buffer: M-x org-registry-update
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;;
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;; If you want this job to be done each time you save an Org buffer,
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;; hook 'org-registry-update to the local 'after-save-hook in org-mode:
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;;
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;; (org-registry-insinuate)
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;;; Code:
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(eval-when-compile
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(require 'cl))
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(defgroup org-registry nil
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"A registry for Org."
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:group 'org)
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(defcustom org-registry-file
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(concat (getenv "HOME") "/.org-registry.el")
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"The Org registry file."
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:group 'org-registry
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:type 'file)
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(defcustom org-registry-find-file 'find-file-other-window
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"How to find visit files."
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:type 'function
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:group 'org-registry)
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(defvar org-registry-alist nil
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"An alist containing the Org registry.")
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;;;###autoload
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(defun org-registry-show (&optional visit)
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"Show Org files where there are links pointing to the current
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buffer."
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(interactive "P")
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(org-registry-initialize)
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(let* ((blink (or (org-remember-annotation) ""))
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(link (when (string-match org-bracket-link-regexp blink)
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(match-string-no-properties 1 blink)))
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(desc (or (and (string-match org-bracket-link-regexp blink)
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(match-string-no-properties 3 blink)) "No description"))
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(files (org-registry-assoc-all link))
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file point selection tmphist)
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(cond ((and files visit)
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;; result(s) to visit
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(cond ((< 1 (length files))
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;; more than one result
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(setq tmphist (mapcar (lambda(entry)
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(format "%s (%d) [%s]"
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(nth 3 entry) ; file
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(nth 2 entry) ; point
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(nth 1 entry))) files))
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(setq selection (completing-read "File: " tmphist
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nil t nil 'tmphist))
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(string-match "\\(.+\\) (\\([0-9]+\\))" selection)
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(setq file (match-string 1 selection))
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(setq point (string-to-number (match-string 2 selection))))
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((eq 1 (length files))
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;; just one result
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(setq file (nth 3 (car files)))
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(setq point (nth 2 (car files)))))
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;; visit the (selected) file
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(funcall org-registry-find-file file)
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(goto-char point)
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(unless (org-before-first-heading-p)
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(org-show-context)))
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((and files (not visit))
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;; result(s) to display
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(cond ((eq 1 (length files))
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;; show one file
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(message "Link in file %s (%d) [%s]"
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(nth 3 (car files))
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(nth 2 (car files))
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(nth 1 (car files))))
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(t (org-registry-display-files files link))))
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(t (message "No link to this in org-agenda-files")))))
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(defun org-registry-display-files (files link)
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"Display files in a separate window."
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(switch-to-buffer-other-window
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(get-buffer-create " *Org registry info*"))
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(erase-buffer)
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(insert (format "Files pointing to %s:\n\n" link))
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(let (file)
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(while (setq file (pop files))
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(insert (format "%s (%d) [%s]\n" (nth 3 file)
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(nth 2 file) (nth 1 file)))))
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(shrink-window-if-larger-than-buffer)
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(other-window 1))
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(defun org-registry-assoc-all (link &optional registry)
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"Return all associated entries of LINK in the registry."
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(org-registry-find-all
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(lambda (entry) (string= link (car entry)))
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registry))
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(defun org-registry-find-all (test &optional registry)
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"Return all entries satisfying `test' in the registry."
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(delq nil
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(mapcar
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(lambda (x) (and (funcall test x) x))
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(or registry org-registry-alist))))
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;;;###autoload
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(defun org-registry-visit ()
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"If an Org file contains a link to the current location, visit
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this file."
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(interactive)
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(org-registry-show t))
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;;;###autoload
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(defun org-registry-initialize (&optional from-scratch)
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"Initialize `org-registry-alist'.
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If FROM-SCRATCH is non-nil or the registry does not exist yet,
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create a new registry from scratch and eval it. If the registry
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exists, eval `org-registry-file' and make it the new value for
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`org-registry-alist'."
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(interactive "P")
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(if (or from-scratch (not (file-exists-p org-registry-file)))
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;; create a new registry
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(let ((files org-agenda-files) file)
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(while (setq file (pop files))
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(setq file (expand-file-name file))
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(mapc (lambda (entry)
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(add-to-list 'org-registry-alist entry))
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(org-registry-get-entries file)))
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(when from-scratch
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(org-registry-create org-registry-alist)))
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;; eval the registry file
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(with-temp-buffer
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(insert-file-contents org-registry-file)
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(eval-buffer))))
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;;;###autoload
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(defun org-registry-insinuate ()
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"Call `org-registry-update' after saving in Org-mode.
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Use with caution. This could slow down things a bit."
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(interactive)
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(add-hook 'org-mode-hook
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(lambda() (add-hook 'after-save-hook
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'org-registry-update t t))))
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(defun org-registry-get-entries (file)
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"List Org links in FILE that will be put in the registry."
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(let (bufstr result)
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(with-temp-buffer
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(insert-file-contents file)
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(goto-char (point-min))
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(while (re-search-forward org-angle-link-re nil t)
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(let* ((point (match-beginning 0))
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(link (match-string-no-properties 0))
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(desc (match-string-no-properties 0)))
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(add-to-list 'result (list link desc point file))))
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(goto-char (point-min))
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(while (re-search-forward org-bracket-link-regexp nil t)
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(let* ((point (match-beginning 0))
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(link (match-string-no-properties 1))
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(desc (or (match-string-no-properties 3) "No description")))
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(add-to-list 'result (list link desc point file)))))
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;; return the list of new entries
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result))
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;;;###autoload
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(defun org-registry-update ()
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"Update the registry for the current Org file."
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(interactive)
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(unless (eq major-mode 'org-mode) (error "Not in org-mode"))
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(let* ((from-file (expand-file-name (buffer-file-name)))
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(new-entries (org-registry-get-entries from-file)))
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(with-temp-buffer
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(unless (file-exists-p org-registry-file)
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(org-registry-initialize t))
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(find-file org-registry-file)
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(goto-char (point-min))
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(while (re-search-forward (concat from-file "\")$") nil t)
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(let ((end (1+ (match-end 0)))
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(beg (progn (re-search-backward "^(\"" nil t)
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(match-beginning 0))))
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(delete-region beg end)))
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(goto-char (point-min))
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(re-search-forward "^(\"" nil t)
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(goto-char (match-beginning 0))
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(mapc (lambda (elem)
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(insert (with-output-to-string (prin1 elem)) "\n"))
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new-entries)
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(save-buffer)
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(kill-buffer (current-buffer)))
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(message (format "Org registry updated for %s"
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(file-name-nondirectory from-file)))))
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(defun org-registry-create (entries)
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"Create `org-registry-file' with ENTRIES."
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(let (entry)
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(with-temp-buffer
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(find-file org-registry-file)
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(erase-buffer)
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(insert
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(with-output-to-string
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(princ ";; -*- emacs-lisp -*-\n")
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(princ ";; Org registry\n")
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(princ ";; You shouldn't try to modify this buffer manually\n\n")
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(princ "(setq org-registry-alist\n'(\n")
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(while entries
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(when (setq entry (pop entries))
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(prin1 entry)
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(princ "\n")))
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(princ "))\n")))
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(save-buffer)
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(kill-buffer (current-buffer))))
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(message "Org registry created"))
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(provide 'org-registry)
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;;; User Options, Variables
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;;; org-registry.el ends here
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