/
org-roam-node.el
1146 lines (1061 loc) · 48.6 KB
/
org-roam-node.el
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
;;; org-roam-node.el --- Interfacing and interacting with nodes -*- lexical-binding: t; -*-
;; Copyright © 2020-2022 Jethro Kuan <jethrokuan95@gmail.com>
;; Author: Jethro Kuan <jethrokuan95@gmail.com>
;; URL: https://github.com/org-roam/org-roam
;; Keywords: org-mode, roam, convenience
;; Version: 2.2.2
;; Package-Requires: ((emacs "26.1") (dash "2.13") (org "9.4") (magit-section "3.0.0"))
;; This file is NOT part of GNU Emacs.
;; This program 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, or (at your option)
;; any later version.
;;
;; This program 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; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;; This module is dedicated for Org-roam nodes and its components. It provides
;; standard means to interface with them, both programmatically and
;; interactively.
;;
;;; Code:
(require 'org-roam)
;;; Options
;;;; Completing-read
(defcustom org-roam-node-display-template "${title}"
"Configures display formatting for Org-roam node.
Patterns of form \"${field-name:length}\" are interpolated based
on the current node.
Each \"field-name\" is replaced with the return value of each
corresponding accessor function for `org-roam-node', e.g.
\"${title}\" will be interpolated by the result of
`org-roam-node-title'. You can also define custom accessors using
`cl-defmethod'. For example, you can define:
(cl-defmethod org-roam-node-my-title ((node org-roam-node))
(concat \"My \" (org-roam-node-title node)))
and then reference it here or in the capture templates as
\"${my-title}\".
\"length\" is an optional specifier and declares how many
characters can be used to display the value of the corresponding
field. If it's not specified, the field will be inserted as is,
i.e. it won't be aligned nor trimmed. If it's an integer, the
field will be aligned accordingly and all the exceeding
characters will be trimmed out. If it's \"*\", the field will use
as many characters as possible and will be aligned accordingly.
A closure can also be assigned to this variable in which case the
closure is evaluated and the return value is used as the
template. The closure must evaluate to a valid template string."
:group 'org-roam
:type '(string function))
(defcustom org-roam-node-annotation-function #'org-roam-node-read--annotation
"This function used to attach annotations for `org-roam-node-read'.
It takes a single argument NODE, which is an `org-roam-node' construct."
:group 'org-roam
:type 'function)
(defcustom org-roam-node-default-sort 'file-mtime
"Default sort order for Org-roam node completions."
:type '(choice
(const :tag "none" nil)
(const :tag "file-mtime" file-mtime)
(const :tag "file-atime" file-atime))
:group 'org-roam)
(defcustom org-roam-node-formatter nil
"The link description for node insertion.
If a function is provided, the function should take a single
argument, an `org-roam-node', and return a string.
If a string is provided, it is a template string expanded by
`org-roam-node--format-entry'."
:group 'org-roam
:type '(string function))
(defcustom org-roam-node-template-prefixes
'(("tags" . "#")
("todo" . "t:"))
"Prefixes for each of the node's properties.
This is used in conjunction with
`org-roam-node-display-template': in minibuffer completions the
node properties will be prefixed with strings in this variable,
acting as a query language of sorts.
For example, if a node has tags (\"foo\" \"bar\") and the alist
has the entry (\"tags\" . \"#\"), these will appear as
\"#foo #bar\"."
:group 'org-roam
:type '(alist))
(defcustom org-roam-ref-annotation-function #'org-roam-ref-read--annotation
"This function used to attach annotations for `org-roam-ref-read'.
It takes a single argument REF, which is a propertized string."
:group 'org-roam
:type '(function))
(defcustom org-roam-ref-prompt-function nil
"Function to prompt for ref strings in `org-roam-ref-add'.
Should take no arguments, prompt the user, and return a string."
:group 'org-roam
:type 'function)
;;;; Completion-at-point
(defcustom org-roam-completion-everywhere nil
"When non-nil, provide link completion matching outside of Org links."
:group 'org-roam
:type 'boolean)
(defcustom org-roam-completion-functions (list #'org-roam-complete-link-at-point
#'org-roam-complete-everywhere)
"List of functions to be used with `completion-at-point' for Org-roam."
:group 'org-roam
:type 'hook)
;;;; Linkage
(defcustom org-roam-link-auto-replace t
"If non-nil, replace \"roam:\" links to existing nodes with \"id:\" links."
:group 'org-roam
:type 'boolean)
(defcustom org-roam-extract-new-file-path "%<%Y%m%d%H%M%S>-${slug}.org"
"The file path template to use when a node is extracted to its own file.
This path is relative to `org-roam-directory'."
:group 'org-roam
:type 'string)
(defvar org-roam-node-history nil
"Minibuffer history of nodes.")
(defvar org-roam-ref-history nil
"Minibuffer history of refs.")
;;; Definition
(cl-defstruct (org-roam-node (:constructor org-roam-node-create)
(:copier nil))
"A heading or top level file with an assigned ID property."
file file-title file-hash file-atime file-mtime
id level point todo priority scheduled deadline title properties olp
tags aliases refs)
;; Shim `string-glyph-compose' and `string-glyph-decompose' for Emacs versions that do not have it.
;; The functions were introduced in emacs commit 3f096eb3405b2fce7c35366eb2dcf025dda55783 and the
;; (original) functions behind them aren't autoloaded anymore.
(dolist (sym.replace
'((string-glyph-compose . ucs-normalize-NFC-string)
(string-glyph-decompose . ucs-normalize-NFD-string)))
(let ((emacs-29-symbol (car sym.replace))
(previous-implementation (cdr sym.replace)))
(unless (fboundp emacs-29-symbol)
(defalias emacs-29-symbol previous-implementation))))
(cl-defmethod org-roam-node-slug ((node org-roam-node))
"Return the slug of NODE."
(let ((title (org-roam-node-title node))
(slug-trim-chars '(;; Combining Diacritical Marks https://www.unicode.org/charts/PDF/U0300.pdf
768 ; U+0300 COMBINING GRAVE ACCENT
769 ; U+0301 COMBINING ACUTE ACCENT
770 ; U+0302 COMBINING CIRCUMFLEX ACCENT
771 ; U+0303 COMBINING TILDE
772 ; U+0304 COMBINING MACRON
774 ; U+0306 COMBINING BREVE
775 ; U+0307 COMBINING DOT ABOVE
776 ; U+0308 COMBINING DIAERESIS
777 ; U+0309 COMBINING HOOK ABOVE
778 ; U+030A COMBINING RING ABOVE
779 ; U+030B COMBINING DOUBLE ACUTE ACCENT
780 ; U+030C COMBINING CARON
795 ; U+031B COMBINING HORN
803 ; U+0323 COMBINING DOT BELOW
804 ; U+0324 COMBINING DIAERESIS BELOW
805 ; U+0325 COMBINING RING BELOW
807 ; U+0327 COMBINING CEDILLA
813 ; U+032D COMBINING CIRCUMFLEX ACCENT BELOW
814 ; U+032E COMBINING BREVE BELOW
816 ; U+0330 COMBINING TILDE BELOW
817 ; U+0331 COMBINING MACRON BELOW
)))
(cl-flet* ((nonspacing-mark-p (char) (memq char slug-trim-chars))
(strip-nonspacing-marks (s) (string-glyph-compose
(apply #'string
(seq-remove #'nonspacing-mark-p
(string-glyph-decompose s)))))
(cl-replace (title pair) (replace-regexp-in-string (car pair) (cdr pair) title)))
(let* ((pairs `(("[^[:alnum:][:digit:]]" . "_") ;; convert anything not alphanumeric
("__*" . "_") ;; remove sequential underscores
("^_" . "") ;; remove starting underscore
("_$" . ""))) ;; remove ending underscore
(slug (-reduce-from #'cl-replace (strip-nonspacing-marks title) pairs)))
(downcase slug)))))
(cl-defmethod org-roam-node-formatted ((node org-roam-node))
"Return a formatted string for NODE."
(pcase org-roam-node-formatter
((pred functionp)
(funcall org-roam-node-formatter node))
((pred stringp)
(org-roam-node--format-entry (org-roam-node--process-display-format org-roam-node-formatter) node))
(_
(org-roam-node-title node))))
(cl-defmethod org-roam-node-category ((node org-roam-node))
"Return the category for NODE."
(cdr (assoc-string "CATEGORY" (org-roam-node-properties node))))
;;; Nodes
;;;; Getters
(defun org-roam-node-at-point (&optional assert)
"Return the node at point.
If ASSERT, throw an error if there is no node at point.
This function also returns the node if it has yet to be cached in the
database. In this scenario, only expect `:id' and `:point' to be
populated."
(or (magit-section-case
(org-roam-node-section (oref it node))
(org-roam-preview-section (save-excursion
(magit-section-up)
(org-roam-node-at-point)))
(t (org-with-wide-buffer
(while (not (or (org-roam-db-node-p)
(bobp)
(eq (funcall outline-level)
(save-excursion
(org-roam-up-heading-or-point-min)
(funcall outline-level)))))
(org-roam-up-heading-or-point-min))
(when-let ((id (org-id-get)))
(org-roam-populate
(org-roam-node-create
:id id
:point (point)))))))
(and assert (user-error "No node at point"))))
(defun org-roam-node-from-id (id)
"Return an `org-roam-node' for the node containing ID.
Return nil if a node with ID does not exist."
(when (> (caar (org-roam-db-query [:select (funcall count) :from nodes
:where (= id $s1)]
id)) 0)
(org-roam-populate (org-roam-node-create :id id))))
(defun org-roam-node-from-title-or-alias (s &optional nocase)
"Return an `org-roam-node' for the node with title or alias S.
Return nil if the node does not exist.
Throw an error if multiple choices exist.
If NOCASE is non-nil, the query is case insensitive. It is case sensitive otherwise."
(let ((matches (seq-uniq
(append
(org-roam-db-query (vconcat [:select [id] :from nodes
:where (= title $s1)]
(if nocase [ :collate NOCASE ]))
s)
(org-roam-db-query (vconcat [:select [node-id] :from aliases
:where (= alias $s1)]
(if nocase [ :collate NOCASE ]))
s)))))
(cond
((seq-empty-p matches)
nil)
((= 1 (length matches))
(org-roam-populate (org-roam-node-create :id (caar matches))))
(t
(user-error "Multiple nodes exist with title or alias \"%s\"" s)))))
(defun org-roam-node-from-ref (ref)
"Return an `org-roam-node' from REF reference.
Return nil if there's no node with such REF."
(save-match-data
(let (type path)
(cond
((string-match org-link-plain-re ref)
(setq type (match-string 1 ref)
path (match-string 2 ref)))
((string-prefix-p "@" ref)
(setq type "cite"
path (substring ref 1))))
(when (and type path)
(when-let ((id (caar (org-roam-db-query
[:select [nodes:id]
:from refs
:left-join nodes
:on (= refs:node-id nodes:id)
:where (= refs:type $s1)
:and (= refs:ref $s2)
:limit 1]
type path))))
(org-roam-populate (org-roam-node-create :id id)))))))
(cl-defmethod org-roam-populate ((node org-roam-node))
"Populate NODE from database.
Uses the ID, and fetches remaining details from the database.
This can be quite costly: avoid, unless dealing with very few
nodes."
(when-let ((node-info (car (org-roam-db-query [:select [file level pos todo priority
scheduled deadline title properties olp]
:from nodes
:where (= id $s1)
:limit 1]
(org-roam-node-id node)))))
(pcase-let* ((`(,file ,level ,pos ,todo ,priority ,scheduled ,deadline ,title ,properties ,olp) node-info)
(`(,atime ,mtime ,file-title) (car (org-roam-db-query [:select [atime mtime title]
:from files
:where (= file $s1)]
file)))
(tag-info (mapcar #'car (org-roam-db-query [:select [tag] :from tags
:where (= node-id $s1)]
(org-roam-node-id node))))
(alias-info (mapcar #'car (org-roam-db-query [:select [alias] :from aliases
:where (= node-id $s1)]
(org-roam-node-id node))))
(refs-info (mapcar #'car (org-roam-db-query [:select [ref] :from refs
:where (= node-id $s1)]
(org-roam-node-id node)))))
(setf (org-roam-node-file node) file
(org-roam-node-file-title node) file-title
(org-roam-node-file-atime node) atime
(org-roam-node-file-mtime node) mtime
(org-roam-node-level node) level
(org-roam-node-point node) pos
(org-roam-node-todo node) todo
(org-roam-node-priority node) priority
(org-roam-node-scheduled node) scheduled
(org-roam-node-deadline node) deadline
(org-roam-node-title node) title
(org-roam-node-properties node) properties
(org-roam-node-olp node) olp
(org-roam-node-tags node) tag-info
(org-roam-node-refs node) refs-info
(org-roam-node-aliases node) alias-info)))
node)
(defun org-roam-node-list ()
"Return all nodes stored in the database as a list of `org-roam-node's."
(let ((rows (org-roam-db-query
"SELECT
id,
file,
filetitle,
\"level\",
todo,
pos,
priority ,
scheduled ,
deadline ,
title,
properties ,
olp,
atime,
mtime,
'(' || group_concat(tags, ' ') || ')' as tags,
aliases,
refs
FROM
(
SELECT
id,
file,
filetitle,
\"level\",
todo,
pos,
priority ,
scheduled ,
deadline ,
title,
properties ,
olp,
atime,
mtime,
tags,
'(' || group_concat(aliases, ' ') || ')' as aliases,
refs
FROM
(
SELECT
nodes.id as id,
nodes.file as file,
nodes.\"level\" as \"level\",
nodes.todo as todo,
nodes.pos as pos,
nodes.priority as priority,
nodes.scheduled as scheduled,
nodes.deadline as deadline,
nodes.title as title,
nodes.properties as properties,
nodes.olp as olp,
files.atime as atime,
files.mtime as mtime,
files.title as filetitle,
tags.tag as tags,
aliases.alias as aliases,
'(' || group_concat(RTRIM (refs.\"type\", '\"') || ':' || LTRIM(refs.ref, '\"'), ' ') || ')' as refs
FROM nodes
LEFT JOIN files ON files.file = nodes.file
LEFT JOIN tags ON tags.node_id = nodes.id
LEFT JOIN aliases ON aliases.node_id = nodes.id
LEFT JOIN refs ON refs.node_id = nodes.id
GROUP BY nodes.id, tags.tag, aliases.alias )
GROUP BY id, tags )
GROUP BY id")))
(cl-loop for row in rows
append (pcase-let* ((`(,id ,file ,file-title ,level ,todo ,pos ,priority ,scheduled ,deadline
,title ,properties ,olp ,atime ,mtime ,tags ,aliases ,refs)
row)
(all-titles (cons title aliases)))
(mapcar (lambda (temp-title)
(org-roam-node-create :id id
:file file
:file-title file-title
:file-atime atime
:file-mtime mtime
:level level
:point pos
:todo todo
:priority priority
:scheduled scheduled
:deadline deadline
:title temp-title
:aliases aliases
:properties properties
:olp olp
:tags tags
:refs refs))
all-titles)))))
;;;; Finders
(defun org-roam-node-marker (node)
"Get the marker for NODE."
(unwind-protect
(let* ((file (org-roam-node-file node))
(buffer (or (find-buffer-visiting file)
(find-file-noselect file))))
(with-current-buffer buffer
(move-marker (make-marker) (org-roam-node-point node) buffer)))))
(defun org-roam-node-open (node &optional cmd force)
"Go to the node NODE.
CMD is the command used to display the buffer. If not provided,
`org-link-frame-setup' is respected. Assumes that the node is
fully populated, with file and point. If NODE is already visited,
this won't automatically move the point to the beginning of the
NODE, unless FORCE is non-nil."
(interactive (list (org-roam-node-at-point) current-prefix-arg))
(org-mark-ring-push)
(let ((m (org-roam-node-marker node))
(cmd (or cmd
(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)))
(when (or force
(not (equal (org-roam-node-id node)
(org-roam-id-at-point))))
(goto-char m))
(move-marker m nil))
(org-show-context))
(defun org-roam-node-visit (node &optional other-window force)
"From the current buffer, visit NODE. Return the visited buffer.
Display the buffer in the selected window. With a prefix
argument OTHER-WINDOW display the buffer in another window
instead.
If NODE is already visited, this won't automatically move the
point to the beginning of the NODE, unless FORCE is non-nil. In
interactive calls FORCE always set to t."
(interactive (list (org-roam-node-at-point t) current-prefix-arg t))
(org-roam-node-open node (if other-window
#'switch-to-buffer-other-window
#'pop-to-buffer-same-window)
force))
;;;###autoload
(cl-defun org-roam-node-find (&optional other-window initial-input filter-fn pred &key templates)
"Find and open an Org-roam node by its title or alias.
INITIAL-INPUT is the initial input for the prompt.
FILTER-FN is a function to filter out nodes: it takes an `org-roam-node',
and when nil is returned the node will be filtered out.
If OTHER-WINDOW, visit the NODE in another window.
The TEMPLATES, if provided, override the list of capture templates (see
`org-roam-capture-'.)"
(interactive current-prefix-arg)
(let ((node (org-roam-node-read initial-input filter-fn pred)))
(if (org-roam-node-file node)
(org-roam-node-visit node other-window)
(org-roam-capture-
:node node
:templates templates
:props '(:finalize find-file)))))
;;;###autoload
(defun org-roam-node-random (&optional other-window filter-fn)
"Find and open a random Org-roam node.
With prefix argument OTHER-WINDOW, visit the node in another
window instead.
FILTER-FN is a function to filter out nodes: it takes an `org-roam-node',
and when nil is returned the node will be filtered out."
(interactive current-prefix-arg)
(org-roam-node-visit
(cdr (seq-random-elt (org-roam-node-read--completions filter-fn)))
other-window))
;;;; Completing-read interface
(defun org-roam-node-read (&optional initial-input filter-fn sort-fn require-match prompt)
"Read and return an `org-roam-node'.
INITIAL-INPUT is the initial minibuffer prompt value.
FILTER-FN is a function to filter out nodes: it takes an `org-roam-node',
and when nil is returned the node will be filtered out.
SORT-FN is a function to sort nodes. See `org-roam-node-read-sort-by-file-mtime'
for an example sort function.
If REQUIRE-MATCH, the minibuffer prompt will require a match.
PROMPT is a string to show at the beginning of the mini-buffer, defaulting to \"Node: \""
(let* ((nodes (org-roam-node-read--completions filter-fn sort-fn))
(prompt (or prompt "Node: "))
(node (completing-read
prompt
(lambda (string pred action)
(if (eq action 'metadata)
`(metadata
;; Preserve sorting in the completion UI if a sort-fn is used
,@(when sort-fn
'((display-sort-function . identity)
(cycle-sort-function . identity)))
(annotation-function
. ,(lambda (title)
(funcall org-roam-node-annotation-function
(get-text-property 0 'node title))))
(category . org-roam-node))
(complete-with-action action nodes string pred)))
nil require-match initial-input 'org-roam-node-history)))
(or (cdr (assoc node nodes))
(org-roam-node-create :title node))))
(defun org-roam-node-read--completions (&optional filter-fn sort-fn)
"Return an alist for node completion.
The car is the displayed title or alias for the node, and the cdr
is the `org-roam-node'.
FILTER-FN is a function to filter out nodes: it takes an `org-roam-node',
and when nil is returned the node will be filtered out.
SORT-FN is a function to sort nodes. See `org-roam-node-read-sort-by-file-mtime'
for an example sort function.
The displayed title is formatted according to `org-roam-node-display-template'."
(let* ((template (org-roam-node--process-display-format org-roam-node-display-template))
(nodes (org-roam-node-list))
(nodes (if filter-fn
(cl-remove-if-not
(lambda (n) (funcall filter-fn n))
nodes)
nodes))
(nodes (mapcar (lambda (node)
(org-roam-node-read--to-candidate node template)) nodes))
(sort-fn (or sort-fn
(when org-roam-node-default-sort
(intern (concat "org-roam-node-read-sort-by-"
(symbol-name org-roam-node-default-sort))))))
(nodes (if sort-fn (seq-sort sort-fn nodes)
nodes)))
nodes))
(defun org-roam-node-read--to-candidate (node template)
"Return a minibuffer completion candidate given NODE.
TEMPLATE is the processed template used to format the entry."
(let ((candidate-main (org-roam-node--format-entry
template
node
(1- (if (bufferp (current-buffer))
(window-width) (frame-width))))))
(cons (propertize candidate-main 'node node) node)))
(defun org-roam-node--format-entry (template node &optional width)
"Formats NODE for display in the results list.
WIDTH is the width of the results list.
TEMPLATE is the processed template used to format the entry."
(pcase-let ((`(,tmpl . ,tmpl-width) template))
(org-roam-format-template
tmpl
(lambda (field _default-val)
(pcase-let* ((`(,field-name ,field-width) (split-string field ":"))
(getter (intern (concat "org-roam-node-" field-name)))
(field-value (funcall getter node)))
(when (and (equal field-name "file")
field-value)
(setq field-value (file-relative-name field-value org-roam-directory)))
(when (and (equal field-name "olp")
field-value)
(setq field-value (string-join field-value " > ")))
(when (and field-value (not (listp field-value)))
(setq field-value (list field-value)))
(setq field-value (mapconcat
(lambda (v)
(concat (or (cdr (assoc field-name org-roam-node-template-prefixes))
"")
v))
field-value " "))
(setq field-width (cond
((not field-width)
field-width)
((string-equal field-width "*")
(if width
(- width tmpl-width)
tmpl-width))
((>= (string-to-number field-width) 0)
(string-to-number field-width))))
(when field-width
(let* ((truncated (truncate-string-to-width field-value field-width 0 ?\s))
(tlen (length truncated))
(len (length field-value)))
(if (< tlen len)
;; Make the truncated part of the string invisible. If strings
;; are pre-propertized with display or invisible properties, the
;; formatting may get messed up. Ideally, truncated strings are
;; not preformatted with these properties. Face properties are
;; allowed without restriction.
(put-text-property tlen len 'invisible t field-value)
;; If the string wasn't truncated, but padded, use this string instead.
(setq field-value truncated))))
field-value)))))
(defun org-roam-node--process-display-format (format)
"Pre-calculate minimal widths needed by the FORMAT string."
(let* ((fields-width 0)
(string-width
(string-width
(org-roam-format-template
format
(lambda (field _default-val)
(setq fields-width
(+ fields-width
(string-to-number
(or (cadr (split-string field ":"))
"")))))))))
(cons format (+ fields-width string-width))))
(defun org-roam-node-read-sort-by-file-mtime (completion-a completion-b)
"Sort files such that files modified more recently are shown first.
COMPLETION-A and COMPLETION-B are items in the form of
\(node-title org-roam-node-struct)"
(let ((node-a (cdr completion-a))
(node-b (cdr completion-b)))
(time-less-p (org-roam-node-file-mtime node-b)
(org-roam-node-file-mtime node-a))))
(defun org-roam-node-read-sort-by-file-atime (completion-a completion-b)
"Sort files such that files accessed more recently are shown first.
COMPLETION-A and COMPLETION-B are items in the form of
\(node-title org-roam-node-struct)"
(let ((node-a (cdr completion-a))
(node-b (cdr completion-b)))
(time-less-p (org-roam-node-file-atime node-b)
(org-roam-node-file-atime node-a))))
(defun org-roam-node-read--annotation (_node)
"Placeholder function. Return empty string for annotations."
"")
;;;; Linkage
;;;;; [id:] link
;;;###autoload
(cl-defun org-roam-node-insert (&optional filter-fn &key templates info)
"Find an Org-roam node and insert (where the point is) an \"id:\" link to it.
FILTER-FN is a function to filter out nodes: it takes an `org-roam-node',
and when nil is returned the node will be filtered out.
The TEMPLATES, if provided, override the list of capture templates (see
`org-roam-capture-'.)
The INFO, if provided, is passed to the underlying `org-roam-capture-'."
(interactive)
(unwind-protect
;; Group functions together to avoid inconsistent state on quit
(atomic-change-group
(let* (region-text
beg end
(_ (when (region-active-p)
(setq beg (set-marker (make-marker) (region-beginning)))
(setq end (set-marker (make-marker) (region-end)))
(setq region-text (org-link-display-format (buffer-substring-no-properties beg end)))))
(node (org-roam-node-read region-text filter-fn))
(description (or region-text
(org-roam-node-formatted node))))
(if (org-roam-node-id node)
(progn
(when region-text
(delete-region beg end)
(set-marker beg nil)
(set-marker end nil))
(let ((id (org-roam-node-id node)))
(insert (org-link-make-string
(concat "id:" id)
description))
(run-hook-with-args 'org-roam-post-node-insert-hook
id
description)))
(org-roam-capture-
:node node
:info info
:templates templates
:props (append
(when (and beg end)
(list :region (cons beg end)))
(list :link-description description
:finalize 'insert-link))))))
(deactivate-mark)))
;;;;; [roam:] link
(org-link-set-parameters "roam" :follow #'org-roam-link-follow-link)
(defun org-roam-link-follow-link (title-or-alias)
"Navigate \"roam:\" link to find and open the node with TITLE-OR-ALIAS.
Assumes that the cursor was put where the link is."
(if-let ((node (org-roam-node-from-title-or-alias title-or-alias)))
(progn
(when org-roam-link-auto-replace
(org-roam-link-replace-at-point))
(org-mark-ring-push)
(org-roam-node-visit node nil 'force))
(org-roam-capture-
:node (org-roam-node-create :title title-or-alias)
:props '(:finalize find-file))))
(defun org-roam-link-replace-at-point (&optional link)
"Replace \"roam:\" LINK at point with an \"id:\" link."
(save-excursion
(save-match-data
(let* ((link (or link (org-element-context)))
(type (org-element-property :type link))
(path (org-element-property :path link))
(desc (and (org-element-property :contents-begin link)
(org-element-property :contents-end link)
(buffer-substring-no-properties
(org-element-property :contents-begin link)
(org-element-property :contents-end link))))
node)
(goto-char (org-element-property :begin link))
(when (and (org-in-regexp org-link-any-re 1)
(string-equal type "roam")
(setq node (save-match-data (org-roam-node-from-title-or-alias path))))
(replace-match (org-link-make-string
(concat "id:" (org-roam-node-id node))
(or desc path))))))))
(defun org-roam-link-replace-all ()
"Replace all \"roam:\" links in buffer with \"id:\" links."
(interactive)
(org-with-point-at 1
(while (re-search-forward org-link-bracket-re nil t)
(org-roam-link-replace-at-point))))
(add-hook 'org-roam-find-file-hook #'org-roam--replace-roam-links-on-save-h)
(defun org-roam--replace-roam-links-on-save-h ()
"Run `org-roam-link-replace-all' before buffer is saved to its file."
(when org-roam-link-auto-replace
(add-hook 'before-save-hook #'org-roam-link-replace-all nil t)))
;;;;;; Completion-at-point interface
(defconst org-roam-bracket-completion-re
"\\[\\[\\(\\(?:roam:\\)?\\)\\([^z-a]*?\\)]]"
"Regex for completion within link brackets.
We use this as a substitute for `org-link-bracket-re', because
`org-link-bracket-re' requires content within the brackets for a match.")
(defun org-roam-complete-link-at-point ()
"Complete \"roam:\" link at point to an existing Org-roam node."
(let (roam-p start end)
(when (org-in-regexp org-roam-bracket-completion-re 1)
(setq roam-p (not (or (org-in-src-block-p)
(string-blank-p (match-string 1))))
start (match-beginning 2)
end (match-end 2))
(list start end
(org-roam--get-titles)
:exit-function
(lambda (str &rest _)
(delete-char (- 0 (length str)))
(insert (concat (unless roam-p "roam:")
str))
(forward-char 2))))))
(defun org-roam-complete-everywhere ()
"Complete symbol at point as a link completion to an Org-roam node.
This is a `completion-at-point' function, and is active when
`org-roam-completion-everywhere' is non-nil.
Unlike `org-roam-complete-link-at-point' this will complete even
outside of the bracket syntax for links (i.e. \"[[roam:|]]\"),
hence \"everywhere\"."
(when (and org-roam-completion-everywhere
(thing-at-point 'word)
(not (org-in-src-block-p))
(not (save-match-data (org-in-regexp org-link-any-re))))
(let ((bounds (bounds-of-thing-at-point 'word)))
(list (car bounds) (cdr bounds)
(org-roam--get-titles)
:exit-function
(lambda (str _status)
(delete-char (- (length str)))
(insert "[[roam:" str "]]"))
;; Proceed with the next completion function if the returned titles
;; do not match. This allows the default Org capfs or custom capfs
;; of lower priority to run.
:exclusive 'no))))
(add-hook 'org-roam-find-file-hook #'org-roam--register-completion-functions-h)
(add-hook 'org-roam-indirect-buffer-hook #'org-roam--register-completion-functions-h)
(defun org-roam--register-completion-functions-h ()
"Setup `org-roam-completion-functions' for `completion-at-point'."
(dolist (f org-roam-completion-functions)
(add-hook 'completion-at-point-functions f nil t)))
;;;; Editing
(defun org-roam-demote-entire-buffer ()
"Convert an org buffer with any top level content to a single node.
All headings are demoted one level.
The #+TITLE: keyword is converted into a level-1 heading and deleted.
Any tags declared on #+FILETAGS: are transferred to tags on the new top heading.
Any top level properties drawers are incorporated into the new heading."
(interactive)
(org-with-point-at 1
(org-map-region #'org-do-demote
(point-min) (point-max))
(insert "* "
(org-roam--get-keyword "title")
"\n")
(org-back-to-heading)
(org-set-tags (org-roam--get-keyword "filetags"))
(org-roam-erase-keyword "title")
(org-roam-erase-keyword "filetags")))
(defun org-roam--h1-count ()
"Count level-1 headings in the current file."
(let ((h1-count 0))
(org-with-wide-buffer
(org-map-region (lambda ()
(if (= (org-current-level) 1)
(cl-incf h1-count)))
(point-min) (point-max))
h1-count)))
(defun org-roam--buffer-promoteable-p ()
"Verify that this buffer is promoteable:
There is a single level-1 heading
and no extra content before the first heading."
(and
(= (org-roam--h1-count) 1)
(org-with-point-at 1 (org-at-heading-p))))
(defun org-roam-promote-entire-buffer ()
"Promote the current buffer.
Converts a file containing a single level-1 headline node to a file
node."
(interactive)
(unless (org-roam--buffer-promoteable-p)
(user-error "Cannot promote: multiple root headings or there is extra file-level text"))
(org-with-point-at 1
(let ((title (nth 4 (org-heading-components)))
(tags (org-get-tags)))
(kill-whole-line)
(org-roam-end-of-meta-data t)
(insert "#+title: " title "\n")
(when tags (org-roam-tag-add tags))
(org-map-region #'org-promote (point-min) (point-max))
(org-roam-db-update-file))))
;;;###autoload
(defun org-roam-refile ()
"Refile node at point to an Org-roam node.
If region is active, then use it instead of the node at point."
(interactive)
(let* ((regionp (org-region-active-p))
(region-start (and regionp (region-beginning)))
(region-end (and regionp (region-end)))
(node (org-roam-node-read nil nil nil 'require-match))
(file (org-roam-node-file node))
(nbuf (or (find-buffer-visiting file)
(find-file-noselect file)))
level reversed)
(if (equal (org-roam-node-at-point) node)
(user-error "Target is the same as current node")
(if regionp
(progn
(org-kill-new (buffer-substring region-start region-end))
(org-save-markers-in-region region-start region-end))
(progn
(if (org-before-first-heading-p)
(org-roam-demote-entire-buffer))
(org-copy-subtree 1 nil t)))
(with-current-buffer nbuf
(org-with-wide-buffer
(goto-char (org-roam-node-point node))
(setq level (org-get-valid-level (funcall outline-level) 1)
reversed (org-notes-order-reversed-p))
(goto-char
(if reversed
(or (outline-next-heading) (point-max))
(or (save-excursion (org-get-next-sibling))
(org-end-of-subtree t t)
(point-max))))
(unless (bolp) (newline))
(org-paste-subtree level nil nil t)
(and org-auto-align-tags
(let ((org-loop-over-headlines-in-active-region nil))
(org-align-tags)))
(when (fboundp 'deactivate-mark) (deactivate-mark))))
(if regionp
(delete-region (point) (+ (point) (- region-end region-start)))
(org-preserve-local-variables
(delete-region
(and (org-back-to-heading t) (point))
(min (1+ (buffer-size)) (org-end-of-subtree t t) (point)))))
;; If the buffer end-up empty after the refile, kill it and delete its
;; associated file.
(when (eq (buffer-size) 0)
(if (buffer-file-name)
(delete-file (buffer-file-name)))
(set-buffer-modified-p nil)
;; If this was done during capture, abort the capture process.
(when (and org-capture-mode
(buffer-base-buffer (current-buffer)))
(org-capture-kill))
(kill-buffer (current-buffer))))))
;;;###autoload
(defun org-roam-extract-subtree ()
"Convert current subtree at point to a node, and extract it into a new file."
(interactive)
(save-excursion
(org-back-to-heading-or-point-min t)
(when (bobp) (user-error "Already a top-level node"))
(org-id-get-create)
(save-buffer)
(org-roam-db-update-file)
(let* ((template-info nil)
(node (org-roam-node-at-point))
(template (org-roam-format-template
(string-trim (org-capture-fill-template org-roam-extract-new-file-path))
(lambda (key default-val)
(let ((fn (intern key))
(node-fn (intern (concat "org-roam-node-" key)))
(ksym (intern (concat ":" key))))
(cond
((fboundp fn)
(funcall fn node))
((fboundp node-fn)
(funcall node-fn node))
(t (let ((r (read-from-minibuffer (format "%s: " key) default-val)))
(plist-put template-info ksym r)
r)))))))
(file-path
(expand-file-name
(read-file-name "Extract node to: "
(file-name-as-directory org-roam-directory) template nil template)
org-roam-directory)))
(when (file-exists-p file-path)
(user-error "%s exists. Aborting" file-path))
(org-cut-subtree)
(save-buffer)
(with-current-buffer (find-file-noselect file-path)
(org-paste-subtree)
(while (> (org-current-level) 1) (org-promote-subtree))
(save-buffer)
(org-roam-promote-entire-buffer)
(save-buffer)))))
;;; Refs
;;;; Completing-read interface
(defun org-roam-ref-read (&optional initial-input filter-fn)
"Read an Org-roam ref and return a corresponding `org-roam-node'.
INITIAL-INPUT is the initial prompt value.
FILTER-FN is a function to filter out nodes: it takes an `org-roam-node',
and when nil is returned the node will be filtered out.
filtered out."
(let* ((refs (org-roam-ref-read--completions))
(refs (cl-remove-if-not (lambda (n)
(if filter-fn (funcall filter-fn (cdr n)) t)) refs))
(ref (completing-read "Ref: "
(lambda (string pred action)