649 lines
22 KiB
EmacsLisp
649 lines
22 KiB
EmacsLisp
;;; org-id.el --- Global identifiers for Org-mode entries
|
|
;;
|
|
;; Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
|
|
;;
|
|
;; Author: Carsten Dominik <carsten at orgmode dot org>
|
|
;; Keywords: outlines, hypermedia, calendar, wp
|
|
;; Homepage: http://orgmode.org
|
|
;; Version: 7.4
|
|
;;
|
|
;; This file is part of GNU Emacs.
|
|
;;
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;
|
|
;;; Commentary:
|
|
|
|
;; This file implements globally unique identifiers for Org-mode entries.
|
|
;; Identifiers are stored in the entry as an :ID: property. Functions
|
|
;; are provided that create and retrieve such identifiers, and that find
|
|
;; entries based on the identifier.
|
|
|
|
;; Identifiers consist of a prefix (default "Org" given by the variable
|
|
;; `org-id-prefix') and a unique part that can be created by a number
|
|
;; of different methods, see the variable `org-id-method'.
|
|
;; Org has a builtin method that uses a compact encoding of the creation
|
|
;; time of the ID, with microsecond accuracy. This virtually
|
|
;; guarantees globally unique identifiers, even if several people are
|
|
;; creating IDs at the same time in files that will eventually be used
|
|
;; together.
|
|
;;
|
|
;; By default Org uses UUIDs as global unique identifiers.
|
|
;;
|
|
;; This file defines the following API:
|
|
;;
|
|
;; org-id-get-create
|
|
;; Create an ID for the entry at point if it does not yet have one.
|
|
;; Returns the ID (old or new). This function can be used
|
|
;; interactively, with prefix argument the creation of a new ID is
|
|
;; forced, even if there was an old one.
|
|
;;
|
|
;; org-id-get
|
|
;; Get the ID property of an entry. Using appropriate arguments
|
|
;; to the function, it can also create the ID for this entry.
|
|
;;
|
|
;; org-id-goto
|
|
;; Command to go to a specific ID, this command can be used
|
|
;; interactively.
|
|
;;
|
|
;; org-id-get-with-outline-path-completion
|
|
;; Retrieve the ID of an entry, using outline path completion.
|
|
;; This function can work for multiple files.
|
|
;;
|
|
;; org-id-get-with-outline-drilling
|
|
;; Retrieve the ID of an entry, using outline path completion.
|
|
;; This function only works for the current file.
|
|
;;
|
|
;; org-id-find
|
|
;; Find the location of an entry with specific id.
|
|
;;
|
|
|
|
;;; Code:
|
|
|
|
(require 'org)
|
|
|
|
(declare-function message-make-fqdn "message" ())
|
|
|
|
;;; Customization
|
|
|
|
(defgroup org-id nil
|
|
"Options concerning global entry identifiers in Org-mode."
|
|
:tag "Org ID"
|
|
:group 'org)
|
|
|
|
(defcustom org-id-uuid-program "uuidgen"
|
|
"The uuidgen program."
|
|
:group 'org-id
|
|
:type 'string)
|
|
|
|
(defcustom org-id-method 'uuid
|
|
"The method that should be used to create new IDs.
|
|
|
|
An ID will consist of the optional prefix specified in `org-id-prefix',
|
|
and a unique part created by the method this variable specifies.
|
|
|
|
Allowed values are:
|
|
|
|
org Org's own internal method, using an encoding of the current time to
|
|
microsecond accuracy, and optionally the current domain of the
|
|
computer. See the variable `org-id-include-domain'.
|
|
|
|
uuid Create random (version 4) UUIDs. If the program defined in
|
|
`org-id-uuid-program' is available it is used to create the ID.
|
|
Otherwise an internal functions is used."
|
|
:group 'org-id
|
|
:type '(choice
|
|
(const :tag "Org's internal method" org)
|
|
(const :tag "external: uuidgen" uuid)))
|
|
|
|
(defcustom org-id-prefix nil
|
|
"The prefix for IDs.
|
|
|
|
This may be a string, or it can be nil to indicate that no prefix is required.
|
|
When a string, the string should have no space characters as IDs are expected
|
|
to have no space characters in them."
|
|
:group 'org-id
|
|
:type '(choice
|
|
(const :tag "No prefix")
|
|
(string :tag "Prefix")))
|
|
|
|
(defcustom org-id-include-domain nil
|
|
"Non-nil means add the domain name to new IDs.
|
|
This ensures global uniqueness of IDs, and is also suggested by
|
|
RFC 2445 in combination with RFC 822. This is only relevant if
|
|
`org-id-method' is `org'. When uuidgen is used, the domain will never
|
|
be added.
|
|
The default is to not use this because we have no really good way to get
|
|
the true domain, and Org entries will normally not be shared with enough
|
|
people to make this necessary."
|
|
:group 'org-id
|
|
:type 'boolean)
|
|
|
|
(defcustom org-id-track-globally t
|
|
"Non-nil means track IDs through files, so that links work globally.
|
|
This work by maintaining a hash table for IDs and writing this table
|
|
to disk when exiting Emacs. Because of this, it works best if you use
|
|
a single Emacs process, not many.
|
|
|
|
When nil, IDs are not tracked. Links to IDs will still work within
|
|
a buffer, but not if the entry is located in another file.
|
|
IDs can still be used if the entry with the id is in the same file as
|
|
the link."
|
|
:group 'org-id
|
|
:type 'boolean)
|
|
|
|
(defcustom org-id-locations-file (convert-standard-filename
|
|
"~/.emacs.d/.org-id-locations")
|
|
"The file for remembering in which file an ID was defined.
|
|
This variable is only relevant when `org-id-track-globally' is set."
|
|
:group 'org-id
|
|
:type 'file)
|
|
|
|
(defvar org-id-locations nil
|
|
"List of files with IDs in those files.
|
|
Depending on `org-id-use-hash' this can also be a hash table mapping IDs
|
|
to files.")
|
|
|
|
(defvar org-id-files nil
|
|
"List of files that contain IDs.")
|
|
|
|
(defcustom org-id-extra-files 'org-agenda-text-search-extra-files
|
|
"Files to be searched for IDs, besides the agenda files.
|
|
When Org reparses files to remake the list of files and IDs it is tracking,
|
|
it will normally scan the agenda files, the archives related to agenda files,
|
|
any files that are listed as ID containing in the current register, and
|
|
any Org-mode files currently visited by Emacs.
|
|
You can list additional files here.
|
|
This variable is only relevant when `org-id-track-globally' is set."
|
|
:group 'org-id
|
|
:type
|
|
'(choice
|
|
(symbol :tag "Variable")
|
|
(repeat :tag "List of files"
|
|
(file))))
|
|
|
|
(defcustom org-id-search-archives t
|
|
"Non-nil means search also the archive files of agenda files for entries.
|
|
This is a possibility to reduce overhead, but it means that entries moved
|
|
to the archives can no longer be found by ID.
|
|
This variable is only relevant when `org-id-track-globally' is set."
|
|
:group 'org-id
|
|
:type 'boolean)
|
|
|
|
;;; The API functions
|
|
|
|
;;;###autoload
|
|
(defun org-id-get-create (&optional force)
|
|
"Create an ID for the current entry and return it.
|
|
If the entry already has an ID, just return it.
|
|
With optional argument FORCE, force the creation of a new ID."
|
|
(interactive "P")
|
|
(when force
|
|
(org-entry-put (point) "ID" nil))
|
|
(org-id-get (point) 'create))
|
|
|
|
;;;###autoload
|
|
(defun org-id-copy ()
|
|
"Copy the ID of the entry at point to the kill ring.
|
|
Create an ID if necessary."
|
|
(interactive)
|
|
(org-kill-new (org-id-get nil 'create)))
|
|
|
|
;;;###autoload
|
|
(defun org-id-get (&optional pom create prefix)
|
|
"Get the ID property of the entry at point-or-marker POM.
|
|
If POM is nil, refer to the entry at point.
|
|
If the entry does not have an ID, the function returns nil.
|
|
However, when CREATE is non nil, create an ID if none is present already.
|
|
PREFIX will be passed through to `org-id-new'.
|
|
In any case, the ID of the entry is returned."
|
|
(org-with-point-at pom
|
|
(let ((id (org-entry-get nil "ID")))
|
|
(cond
|
|
((and id (stringp id) (string-match "\\S-" id))
|
|
id)
|
|
(create
|
|
(setq id (org-id-new prefix))
|
|
(org-entry-put pom "ID" id)
|
|
(org-id-add-location id (buffer-file-name (buffer-base-buffer)))
|
|
id)
|
|
(t nil)))))
|
|
|
|
;;;###autoload
|
|
(defun org-id-get-with-outline-path-completion (&optional targets)
|
|
"Use outline-path-completion to retrieve the ID of an entry.
|
|
TARGETS may be a setting for `org-refile-targets' to define the eligible
|
|
headlines. When omitted, all headlines in all agenda files are
|
|
eligible.
|
|
It returns the ID of the entry. If necessary, the ID is created."
|
|
(let* ((org-refile-targets (or targets '((nil . (:maxlevel . 10)))))
|
|
(org-refile-use-outline-path
|
|
(if (caar org-refile-targets) 'file t))
|
|
(org-refile-target-verify-function nil)
|
|
(spos (org-refile-get-location "Entry"))
|
|
(pom (and spos (move-marker (make-marker) (nth 3 spos)
|
|
(get-file-buffer (nth 1 spos))))))
|
|
(prog1 (org-id-get pom 'create)
|
|
(move-marker pom nil))))
|
|
|
|
;;;###autoload
|
|
(defun org-id-get-with-outline-drilling (&optional targets)
|
|
"Use an outline-cycling interface to retrieve the ID of an entry.
|
|
This only finds entries in the current buffer, using `org-get-location'.
|
|
It returns the ID of the entry. If necessary, the ID is created."
|
|
(let* ((spos (org-get-location (current-buffer) org-goto-help))
|
|
(pom (and spos (move-marker (make-marker) (car spos)))))
|
|
(prog1 (org-id-get pom 'create)
|
|
(move-marker pom nil))))
|
|
|
|
;;;###autoload
|
|
(defun org-id-goto (id)
|
|
"Switch to the buffer containing the entry with id ID.
|
|
Move the cursor to that entry in that buffer."
|
|
(interactive "sID: ")
|
|
(let ((m (org-id-find id 'marker)))
|
|
(unless m
|
|
(error "Cannot find entry with ID \"%s\"" id))
|
|
(switch-to-buffer (marker-buffer m))
|
|
(goto-char m)
|
|
(move-marker m nil)
|
|
(org-show-context)))
|
|
|
|
;;;###autoload
|
|
(defun org-id-find (id &optional markerp)
|
|
"Return the location of the entry with the id ID.
|
|
The return value is a cons cell (file-name . position), or nil
|
|
if there is no entry with that ID.
|
|
With optional argument MARKERP, return the position as a new marker."
|
|
(cond
|
|
((symbolp id) (setq id (symbol-name id)))
|
|
((numberp id) (setq id (number-to-string id))))
|
|
(let ((file (org-id-find-id-file id))
|
|
org-agenda-new-buffers where)
|
|
(when file
|
|
(setq where (org-id-find-id-in-file id file markerp)))
|
|
(unless where
|
|
(org-id-update-id-locations)
|
|
(setq file (org-id-find-id-file id))
|
|
(when file
|
|
(setq where (org-id-find-id-in-file id file markerp))))
|
|
where))
|
|
|
|
;;; Internal functions
|
|
|
|
;; Creating new IDs
|
|
|
|
(defun org-id-new (&optional prefix)
|
|
"Create a new globally unique ID.
|
|
|
|
An ID consists of two parts separated by a colon:
|
|
- a prefix
|
|
- a unique part that will be created according to `org-id-method'.
|
|
|
|
PREFIX can specify the prefix, the default is given by the variable
|
|
`org-id-prefix'. However, if PREFIX is the symbol `none', don't use any
|
|
prefix even if `org-id-prefix' specifies one.
|
|
|
|
So a typical ID could look like \"Org:4nd91V40HI\"."
|
|
(let* ((prefix (if (eq prefix 'none)
|
|
""
|
|
(concat (or prefix org-id-prefix) ":")))
|
|
unique)
|
|
(if (equal prefix ":") (setq prefix ""))
|
|
(cond
|
|
((memq org-id-method '(uuidgen uuid))
|
|
(setq unique (org-trim (shell-command-to-string org-id-uuid-program)))
|
|
(unless (org-uuidgen-p unique)
|
|
(setq unique (org-id-uuid))))
|
|
((eq org-id-method 'org)
|
|
(let* ((etime (org-id-reverse-string (org-id-time-to-b36)))
|
|
(postfix (if org-id-include-domain
|
|
(progn
|
|
(require 'message)
|
|
(concat "@" (message-make-fqdn))))))
|
|
(setq unique (concat etime postfix))))
|
|
(t (error "Invalid `org-id-method'")))
|
|
(concat prefix unique)))
|
|
|
|
(defun org-id-uuid ()
|
|
"Return string with random (version 4) UUID."
|
|
(let ((rnd (md5 (format "%s%s%s%s%s%s%s"
|
|
(random t)
|
|
(current-time)
|
|
(user-uid)
|
|
(emacs-pid)
|
|
(user-full-name)
|
|
user-mail-address
|
|
(recent-keys)))))
|
|
(format "%s-%s-4%s-%s%s-%s"
|
|
(substring rnd 0 8)
|
|
(substring rnd 8 12)
|
|
(substring rnd 13 16)
|
|
(format "%x"
|
|
(logior
|
|
#b10000000
|
|
(logand
|
|
#b10111111
|
|
(string-to-number
|
|
(substring rnd 16 18) 16))))
|
|
(substring rnd 18 20)
|
|
(substring rnd 20 32))))
|
|
|
|
(defun org-id-reverse-string (s)
|
|
(mapconcat 'char-to-string (nreverse (string-to-list s)) ""))
|
|
|
|
(defun org-id-int-to-b36-one-digit (i)
|
|
"Turn an integer between 0 and 61 into a single character 0..9, A..Z, a..z."
|
|
(cond
|
|
((< i 10) (+ ?0 i))
|
|
((< i 36) (+ ?a i -10))
|
|
(t (error "Larger that 35"))))
|
|
|
|
(defun org-id-b36-to-int-one-digit (i)
|
|
"Turn a character 0..9, A..Z, a..z into a number 0..61.
|
|
The input I may be a character, or a single-letter string."
|
|
(and (stringp i) (setq i (string-to-char i)))
|
|
(cond
|
|
((and (>= i ?0) (<= i ?9)) (- i ?0))
|
|
((and (>= i ?a) (<= i ?z)) (+ (- i ?a) 10))
|
|
(t (error "Invalid b36 letter"))))
|
|
|
|
(defun org-id-int-to-b36 (i &optional length)
|
|
"Convert an integer to a base-36 number represented as a string."
|
|
(let ((s ""))
|
|
(while (> i 0)
|
|
(setq s (concat (char-to-string
|
|
(org-id-int-to-b36-one-digit (mod i 36))) s)
|
|
i (/ i 36)))
|
|
(setq length (max 1 (or length 1)))
|
|
(if (< (length s) length)
|
|
(setq s (concat (make-string (- length (length s)) ?0) s)))
|
|
s))
|
|
|
|
(defun org-id-b36-to-int (s)
|
|
"Convert a base-36 string into the corresponding integer."
|
|
(let ((r 0))
|
|
(mapc (lambda (i) (setq r (+ (* r 36) (org-id-b36-to-int-one-digit i))))
|
|
s)
|
|
r))
|
|
|
|
(defun org-id-time-to-b36 (&optional time)
|
|
"Encode TIME as a 10-digit string.
|
|
This string holds the time to micro-second accuracy, and can be decoded
|
|
using `org-id-decode'."
|
|
(setq time (or time (current-time)))
|
|
(concat (org-id-int-to-b36 (nth 0 time) 4)
|
|
(org-id-int-to-b36 (nth 1 time) 4)
|
|
(org-id-int-to-b36 (or (nth 2 time) 0) 4)))
|
|
|
|
(defun org-id-decode (id)
|
|
"Split ID into the prefix and the time value that was used to create it.
|
|
The return value is (prefix . time) where PREFIX is nil or a string,
|
|
and time is the usual three-integer representation of time."
|
|
(let (prefix time parts)
|
|
(setq parts (org-split-string id ":"))
|
|
(if (= 2 (length parts))
|
|
(setq prefix (car parts) time (nth 1 parts))
|
|
(setq prefix nil time (nth 0 parts)))
|
|
(setq time (org-id-reverse-string time))
|
|
(setq time (list (org-id-b36-to-int (substring time 0 4))
|
|
(org-id-b36-to-int (substring time 4 8))
|
|
(org-id-b36-to-int (substring time 8 12))))
|
|
(cons prefix time)))
|
|
|
|
;; Storing ID locations (files)
|
|
|
|
(defun org-id-update-id-locations (&optional files)
|
|
"Scan relevant files for IDs.
|
|
Store the relation between files and corresponding IDs.
|
|
This will scan all agenda files, all associated archives, and all
|
|
files currently mentioned in `org-id-locations'.
|
|
When FILES is given, scan these files instead.
|
|
When CHECK is given, prepare detailed information about duplicate IDs."
|
|
(interactive)
|
|
(if (not org-id-track-globally)
|
|
(error "Please turn on `org-id-track-globally' if you want to track IDs")
|
|
(let* ((org-id-search-archives
|
|
(or org-id-search-archives
|
|
(and (symbolp org-id-extra-files)
|
|
(symbol-value org-id-extra-files)
|
|
(member 'agenda-archives org-id-extra-files))))
|
|
(files
|
|
(or files
|
|
(append
|
|
;; Agenda files and all associated archives
|
|
(org-agenda-files t org-id-search-archives)
|
|
;; Explicit extra files
|
|
(if (symbolp org-id-extra-files)
|
|
(symbol-value org-id-extra-files)
|
|
org-id-extra-files)
|
|
;; Files associated with live org-mode buffers
|
|
(delq nil
|
|
(mapcar (lambda (b)
|
|
(with-current-buffer b
|
|
(and (org-mode-p) (buffer-file-name))))
|
|
(buffer-list)))
|
|
;; All files known to have IDs
|
|
org-id-files)))
|
|
org-agenda-new-buffers
|
|
file nfiles tfile ids reg found id seen (ndup 0))
|
|
(when (member 'agenda-archives files)
|
|
(setq files (delq 'agenda-archives (copy-sequence files))))
|
|
(setq nfiles (length files))
|
|
(while (setq file (pop files))
|
|
(message "Finding ID locations (%d/%d files): %s"
|
|
(- nfiles (length files)) nfiles file)
|
|
(setq tfile (file-truename file))
|
|
(when (and (file-exists-p file) (not (member tfile seen)))
|
|
(push tfile seen)
|
|
(setq ids nil)
|
|
(with-current-buffer (org-get-agenda-file-buffer file)
|
|
(save-excursion
|
|
(save-restriction
|
|
(widen)
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "^[ \t]*:ID:[ \t]+\\(\\S-+\\)[ \t]*$"
|
|
nil t)
|
|
(setq id (org-match-string-no-properties 1))
|
|
(if (member id found)
|
|
(progn
|
|
(message "Duplicate ID \"%s\", also in file %s"
|
|
id (or (car (delq
|
|
nil
|
|
(mapcar
|
|
(lambda (x)
|
|
(if (member id (cdr x))
|
|
(car x)))
|
|
reg)))
|
|
(buffer-file-name)))
|
|
(when (= ndup 0)
|
|
(ding)
|
|
(sit-for 2))
|
|
(setq ndup (1+ ndup)))
|
|
(push id found)
|
|
(push id ids)))
|
|
(push (cons (abbreviate-file-name file) ids) reg))))))
|
|
(org-release-buffers org-agenda-new-buffers)
|
|
(setq org-agenda-new-buffers nil)
|
|
(setq org-id-locations reg)
|
|
(setq org-id-files (mapcar 'car org-id-locations))
|
|
(org-id-locations-save) ;; this function can also handle the alist form
|
|
;; now convert to a hash
|
|
(setq org-id-locations (org-id-alist-to-hash org-id-locations))
|
|
(if (> ndup 0)
|
|
(message "WARNING: %d duplicate IDs found, check *Messages* buffer" ndup)
|
|
(message "%d unique files scanned for IDs" (length org-id-files)))
|
|
org-id-locations)))
|
|
|
|
(defun org-id-locations-save ()
|
|
"Save `org-id-locations' in `org-id-locations-file'."
|
|
(when (and org-id-track-globally org-id-locations)
|
|
(let ((out (if (hash-table-p org-id-locations)
|
|
(org-id-hash-to-alist org-id-locations)
|
|
org-id-locations)))
|
|
(with-temp-file org-id-locations-file
|
|
(print out (current-buffer))))))
|
|
|
|
(defun org-id-locations-load ()
|
|
"Read the data from `org-id-locations-file'."
|
|
(setq org-id-locations nil)
|
|
(when org-id-track-globally
|
|
(with-temp-buffer
|
|
(condition-case nil
|
|
(progn
|
|
(insert-file-contents-literally org-id-locations-file)
|
|
(goto-char (point-min))
|
|
(setq org-id-locations (read (current-buffer))))
|
|
(error
|
|
(message "Could not read org-id-values from %s. Setting it to nil."
|
|
org-id-locations-file))))
|
|
(setq org-id-files (mapcar 'car org-id-locations))
|
|
(setq org-id-locations (org-id-alist-to-hash org-id-locations))))
|
|
|
|
(defun org-id-add-location (id file)
|
|
"Add the ID with location FILE to the database of ID locations."
|
|
;; Only if global tracking is on, and when the buffer has a file
|
|
(when (and org-id-track-globally id file)
|
|
(unless org-id-locations (org-id-locations-load))
|
|
(puthash id (abbreviate-file-name file) org-id-locations)
|
|
(add-to-list 'org-id-files (abbreviate-file-name file))))
|
|
|
|
(unless noninteractive
|
|
(add-hook 'kill-emacs-hook 'org-id-locations-save))
|
|
|
|
(defun org-id-hash-to-alist (hash)
|
|
"Turn an org-id hash into an alist, so that it can be written to a file."
|
|
(let (res x)
|
|
(maphash
|
|
(lambda (k v)
|
|
(if (setq x (member v res))
|
|
(setcdr x (cons k (cdr x)))
|
|
(push (list v k) res)))
|
|
hash)
|
|
res))
|
|
|
|
(defun org-id-alist-to-hash (list)
|
|
"Turn an org-id location list into a hash table."
|
|
(let ((res (make-hash-table
|
|
:test 'equal
|
|
:size (apply '+ (mapcar 'length list))))
|
|
f)
|
|
(mapc
|
|
(lambda (x)
|
|
(setq f (car x))
|
|
(mapc (lambda (i) (puthash i f res)) (cdr x)))
|
|
list)
|
|
res))
|
|
|
|
(defun org-id-paste-tracker (txt &optional buffer-or-file)
|
|
"Update any IDs in TXT and assign BUFFER-OR-FILE to them."
|
|
(when org-id-track-globally
|
|
(save-match-data
|
|
(setq buffer-or-file (or buffer-or-file (current-buffer)))
|
|
(when (bufferp buffer-or-file)
|
|
(setq buffer-or-file (or (buffer-base-buffer buffer-or-file)
|
|
buffer-or-file))
|
|
(setq buffer-or-file (buffer-file-name buffer-or-file)))
|
|
(when buffer-or-file
|
|
(let ((fname (abbreviate-file-name buffer-or-file))
|
|
(s 0))
|
|
(while (string-match "^[ \t]*:ID:[ \t]+\\([^ \t\n\r]+\\)" txt s)
|
|
(setq s (match-end 0))
|
|
(org-id-add-location (match-string 1 txt) fname)))))))
|
|
|
|
;; Finding entries with specified id
|
|
|
|
;;;###autoload
|
|
(defun org-id-find-id-file (id)
|
|
"Query the id database for the file in which this ID is located."
|
|
(unless org-id-locations (org-id-locations-load))
|
|
(or (and org-id-locations
|
|
(hash-table-p org-id-locations)
|
|
(gethash id org-id-locations))
|
|
;; ball back on current buffer
|
|
(buffer-file-name (or (buffer-base-buffer (current-buffer))
|
|
(current-buffer)))))
|
|
|
|
(defun org-id-find-id-in-file (id file &optional markerp)
|
|
"Return the position of the entry ID in FILE.
|
|
If that files does not exist, or if it does not contain this ID,
|
|
return nil.
|
|
The position is returned as a cons cell (file-name . position). With
|
|
optional argument MARKERP, return the position as a new marker."
|
|
(let (org-agenda-new-buffers buf pos)
|
|
(cond
|
|
((not file) nil)
|
|
((not (file-exists-p file)) nil)
|
|
(t (with-current-buffer (setq buf (org-get-agenda-file-buffer file))
|
|
(setq pos (org-find-entry-with-id id))
|
|
(when pos
|
|
(if markerp
|
|
(move-marker (make-marker) pos buf)
|
|
(cons file pos))))))))
|
|
|
|
;; id link type
|
|
|
|
;; Calling the following function is hard-coded into `org-store-link',
|
|
;; so we do have to add it to `org-store-link-functions'.
|
|
|
|
;;;###autoload
|
|
(defun org-id-store-link ()
|
|
"Store a link to the current entry, using its ID."
|
|
(interactive)
|
|
(when (and (buffer-file-name (buffer-base-buffer)) (org-mode-p))
|
|
(let* ((link (org-make-link "id:" (org-id-get-create)))
|
|
(case-fold-search nil)
|
|
(desc (save-excursion
|
|
(org-back-to-heading t)
|
|
(or (and (looking-at org-complex-heading-regexp)
|
|
(if (match-end 4)
|
|
(match-string 4)
|
|
(match-string 0)))
|
|
link))))
|
|
(org-store-link-props :link link :description desc :type "id")
|
|
link)))
|
|
|
|
(defun org-id-open (id)
|
|
"Go to the entry with id ID."
|
|
(org-mark-ring-push)
|
|
(let ((m (org-id-find id 'marker))
|
|
cmd)
|
|
(unless m
|
|
(error "Cannot find entry with ID \"%s\"" id))
|
|
;; Use a buffer-switching command in analogy to finding files
|
|
(setq cmd
|
|
(or
|
|
(cdr
|
|
(assq
|
|
(cdr (assq 'file org-link-frame-setup))
|
|
'((find-file . switch-to-buffer)
|
|
(find-file-other-window . switch-to-buffer-other-window)
|
|
(find-file-other-frame . switch-to-buffer-other-frame))))
|
|
'switch-to-buffer-other-window))
|
|
(if (not (equal (current-buffer) (marker-buffer m)))
|
|
(funcall cmd (marker-buffer m)))
|
|
(goto-char m)
|
|
(move-marker m nil)
|
|
(org-show-context)))
|
|
|
|
(org-add-link-type "id" 'org-id-open)
|
|
|
|
(provide 'org-id)
|
|
|
|
;;; org-id.el ends here
|
|
|
|
;; arch-tag: e5abaca4-e16f-4b25-832a-540cfb63a712
|
|
|
|
|