emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob 90c611e70c92bfd7adfa38588b38b5e954359b7a 47798 bytes (raw)
name: lisp/org-persist.el 	 # note: path name is non-authoritative(*)

   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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
 
;;; org-persist.el --- Persist cached data across Emacs sessions         -*- lexical-binding: t; -*-

;; Copyright (C) 2021-2023 Free Software Foundation, Inc.

;; Author: Ihor Radchenko <yantar92 at gmail dot com>
;; Keywords: cache, storage

;; 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 <https://www.gnu.org/licenses/>.

;;; Commentary:
;;
;; This file implements persistent cache storage across Emacs sessions.
;; Both global and buffer-local data can be stored.  This
;; implementation is not meant to be used to store important data -
;; all the caches should be safe to remove at any time.
;;
;; Example usage:
;;
;; 1. Temporarily cache Elisp symbol value to disk.  Remove upon
;;    closing Emacs:
;;    (org-persist-write 'variable-symbol)
;;    (org-persist-read 'variable-symbol) ;; read the data later
;; 2. Temporarily cache a remote URL file to disk.  Remove upon
;;    closing Emacs:
;;    (org-persist-write 'url "https://static.fsf.org/common/img/logo-new.png")
;;    (org-persist-read 'url "https://static.fsf.org/common/img/logo-new.png")
;;    `org-persist-read' will return the cached file location or nil if cached file
;;    has been removed.
;; 3. Temporarily cache a file, including TRAMP path to disk:
;;    (org-persist-write 'file "/path/to/file")
;; 4. Cache file or URL while some other file exists.
;;    (org-persist-register '(url "https://static.fsf.org/common/img/logo-new.png") '(:file "/path to the other file") :expiry 'never :write-immediately t)
;;    or, if the other file is current buffer file
;;    (org-persist-register '(url "https://static.fsf.org/common/img/logo-new.png") (current-buffer) :expiry 'never :write-immediately t)
;; 5. Cache value of a Elisp variable to disk.  The value will be
;;    saved and restored automatically (except buffer-local
;;    variables).
;;    ;; Until `org-persist-default-expiry'
;;    (org-persist-register 'variable-symbol)
;;    ;; Specify expiry explicitly
;;    (org-persist-register 'variable-symbol :expiry 'never)
;;    ;; Save buffer-local variable (buffer-local will not be
;;    ;; autoloaded!)
;;    (org-persist-register 'org-element--cache (current-buffer))
;;    ;; Save buffer-local variable preserving circular links:
;;    (org-persist-register 'org-element--headline-cache (current-buffer)
;;               :inherit 'org-element--cache)
;; 6. Load variable by side effects assigning variable symbol:
;;    (org-persist-load 'variable-symbol (current-buffer))
;; 7. Version variable value:
;;    (org-persist-register '((elisp variable-symbol) (version "2.0")))
;; 8. Cancel variable persistence:
;;    (org-persist-unregister 'variable-symbol 'all) ; in all buffers
;;    (org-persist-unregister 'variable-symbol) ;; global variable
;;    (org-persist-unregister 'variable-symbol (current-buffer)) ;; buffer-local
;;
;; Most common data type is variable data.  However, other data types
;; can also be stored.
;;
;; Persistent data is stored in individual files.  Each of the files
;; can contain a collection of related data, which is particularly
;; useful when, say, several variables cross-reference each-other's
;; data-cells and we want to preserve their circular structure.
;;
;; Each data collection can be associated with a local or remote file,
;; its inode number, or contents hash.  The persistent data collection
;; can later be accessed using either file buffer, file, inode, or
;; contents hash.
;;
;; The data collections can be versioned and removed upon expiry.
;;
;; In the code below I will use the following naming conventions:
;; 1. Container :: a type of data to be stored
;;    Containers can store elisp variables, files, and version
;;    numbers.  Each container can be customized with container
;;    options.  For example, `elisp' container is customized with
;;    variable symbol.  (elisp variable) is a container storing
;;    Lisp variable value.  Similarly, (version "2.0") container
;;    will store version number.
;; 2. Associated :: an object the container is associated with.  The
;;    object can be a buffer, file, inode number, file contents hash,
;;    a generic key, or multiple of them.  Associated can also be nil.
;; 3. Data collection :: a list of containers linked to an associated
;;    object/objects.  Each data collection can also have auxiliary
;;    records.  Their only purpose is readability of the collection
;;    index.
;; 4. Index file :: a file listing all the stored data collections.
;; 5. Persist file :: a file holding data values or references to
;;    actual data values for a single data collection.  This file
;;    contains an alist associating each data container in data
;;    collection with its value or a reference to the actual value.
;;
;; All the persistent data is stored in `org-persist-directory'.  The data
;; collections are listed in `org-persist-index-file' and the actual data is
;; stored in UID-style subfolders.
;;
;; The `org-persist-index-file' stores the value of `org-persist--index'.
;;
;; Each collection is represented as a plist containing the following
;; properties:
;; - `:container'   : list of data continers to be stored in single
;;                    file;
;; - `:persist-file': data file name;
;; - `:associated'  : list of associated objects;
;; - `:last-access' : last date when the container has been accessed;
;; - `:expiry'      : list of expiry conditions.
;; - all other keywords are ignored
;;
;; The available types of data containers are:
;; 1. (file variable-symbol) or just variable-symbol :: Storing
;;    elisp variable data.
;; 2. (file) :: Store a copy of the associated file preserving the
;;    extension.
;;    (file "/path/to/a/file") :: Store a copy of the file in path.
;; 3. (version "version number") :: Version the data collection.
;;     If the stored collection has different version than "version
;;     number", disregard it.
;; 4. (url) :: Store a downloaded copy of URL object.
;;
;; The data collections can expire, in which case they will be removed
;; from the persistent storage at the end of Emacs session.  The
;; expiry condition can be set when saving/registering data
;; containers.  The expirty condition can be `never' - data will never
;; expire; nil - data will expire at the end of current Emacs session;
;; a number - data will expire after the number days from last access;
;; a function - data will expire if the function, called with a single
;; argument - collection, returns non-nil.
;;
;;
;; Data collections associated with files will automatically expire
;; when the file is removed.  If the associated file is remote, the
;; expiry is controlled by `org-persist-remote-files' instead.
;;
;; Data loading/writing can be more accurately controlled using
;; `org-persist-before-write-hook', `org-persist-before-read-hook', and `org-persist-after-read-hook'.

;;; Code:

(require 'org-macs)
(unless (version< emacs-version "29")
  (org-assert-version))

(require 'org-compat)
(require 'org-id)
(require 'xdg nil t)

(declare-function org-back-to-heading "org" (&optional invisible-ok))
(declare-function org-next-visible-heading "org" (arg))
(declare-function org-at-heading-p "org" (&optional invisible-not-ok))

;; Silence byte-compiler (used in `org-persist--write-elisp-file').
(defvar pp-use-max-width)

(defconst org-persist--storage-version "3.1"
  "Persistent storage layout version.")

(defgroup org-persist nil
  "Persistent cache for Org mode."
  :tag "Org persist"
  :group 'org)

(defcustom org-persist-directory (expand-file-name
                       (org-file-name-concat
                        (let ((cache-dir (when (fboundp 'xdg-cache-home)
                                           (xdg-cache-home))))
                          (if (or (seq-empty-p cache-dir)
                                  (not (file-exists-p cache-dir))
                                  (file-exists-p (org-file-name-concat
                                                  user-emacs-directory
                                                  "org-persist")))
                              user-emacs-directory
                            cache-dir))
                        "org-persist/"))
  "Directory where the data is stored."
  :group 'org-persist
  :package-version '(Org . "9.6")
  :type 'directory)

(defcustom org-persist-remote-files 100
  "Whether to keep persistent data for remote files.

When this variable is nil, never save persistent data associated with
remote files.  When t, always keep the data.  When
`check-existence', contact remote server containing the file and only
keep the data when the file exists on the server.  When a number, keep
up to that number persistent values for remote files.

Note that the last option `check-existence' may cause Emacs to show
password prompts to log in."
  :group 'org-persist
  :package-version '(Org . "9.6")
  :type '(choice (const :tag "Never" nil)
                 (const :tag "Always" t)
                 (number :tag "Keep not more than X files")
                 (const :tag "Check if exist on remote" check-existence)))

(defcustom org-persist-default-expiry 30
  "Default expiry condition for persistent data.

When this variable is nil, all the data vanishes at the end of Emacs
session.  When `never', the data never vanishes.  When a number, the
data is deleted that number days after last access.  When a function,
it should be a function returning non-nil when the data is expired.  The
function will be called with a single argument - collection."
  :group 'org-persist
  :package-version '(Org . "9.6")
  :type '(choice (const :tag "Never" never)
                 (const :tag "Always" nil)
                 (number :tag "Keep N days")
                 (function :tag "Function")))

(defconst org-persist-index-file "index"
  "File name used to store the data index.")

(defvar org-persist--disable-when-emacs-Q t
  "Disable persistence when Emacs is called with -Q command line arg.
When non-nil, this sets `org-persist-directory' to temporary directory.

This variable must be set before loading org-persist library.")

(defvar org-persist-before-write-hook nil
  "Abnormal hook ran before saving data.
The hook must accept the same arguments as `org-persist-write'.
The hooks will be evaluated until a hook returns non-nil.
If any of the hooks return non-nil, do not save the data.")

(defvar org-persist-before-read-hook nil
  "Abnormal hook ran before reading data.
The hook must accept the same arguments as `org-persist-read'.
The hooks will be evaluated until a hook returns non-nil.
If any of the hooks return non-nil, do not read the data.")

(defvar org-persist-after-read-hook nil
  "Abnormal hook ran after reading data.
The hook must accept the same arguments as `org-persist-read'.")

(defvar org-persist--index nil
  "Global index.

The index is a list of plists.  Each plist contains information about
persistent data storage.  Each plist contains the following
properties:

  - `:container'  : list of data continers to be stored in single file
  - `:persist-file': data file name
  - `:associated'  : list of associated objects
  - `:last-access' : last date when the container has been read
  - `:expiry'      : list of expiry conditions
  - all other keywords are ignored.")

(defvar org-persist--index-hash nil
  "Hash table storing `org-persist--index'.  Used for quick access.
They keys are conses of (container . associated).")

(defvar org-persist--report-time 0.5
  "Whether to report read/write time.

When the value is a number, it is a threshold number of seconds.  If
the read/write time of a single variable exceeds the threshold, a
message is displayed.

When the value is a non-nil non-number, always display the message.
When the value is nil, never display the message.")

;;;; Common functions

(defun org-persist--display-time (duration format &rest args)
  "Report DURATION according to FORMAT + ARGS message.
FORMAT and ARGS are passed to `message'."
  (when (or (and org-persist--report-time
                 (numberp org-persist--report-time)
                 (>= duration org-persist--report-time))
            (and org-persist--report-time
                 (not (numberp org-persist--report-time))))
    (apply #'message
           (format "org-persist: %s took %%.2f sec" format)
           (append args (list duration)))))

(defun org-persist--read-elisp-file (&optional buffer-or-file)
  "Read elisp data from BUFFER-OR-FILE or current buffer."
  (unless buffer-or-file (setq buffer-or-file (current-buffer)))
  (with-temp-buffer
    (if (bufferp buffer-or-file)
        (set-buffer buffer-or-file)
      (insert-file-contents buffer-or-file))
    (condition-case err
        (let ((coding-system-for-read 'utf-8)
              (read-circle t)
              (start-time (float-time)))
          ;; FIXME: Reading sometimes fails to read circular objects.
          ;; I suspect that it happens when we have object reference
          ;; #N# read before object definition #N=.  If it is really
          ;; so, it should be Emacs bug - either in `read' or in
          ;; `prin1'.  Meanwhile, just fail silently when `read'
          ;; fails to parse the saved cache object.
          (prog1
              (read (current-buffer))
            (org-persist--display-time
             (- (float-time) start-time)
             "Reading from %S" buffer-or-file)))
      ;; Recover gracefully if index file is corrupted.
      (error
       ;; Remove problematic file.
       (unless (bufferp buffer-or-file) (delete-file buffer-or-file))
       ;; Do not report the known error to user.
       (if (string-match-p "Invalid read syntax" (error-message-string err))
           (message "Emacs reader failed to read data in %S. The error was: %S"
                    buffer-or-file (error-message-string err))
         (warn "Emacs reader failed to read data in %S. The error was: %S"
               buffer-or-file (error-message-string err)))
       nil))))

(defun org-persist--write-elisp-file (file data &optional no-circular pp)
  "Write elisp DATA to FILE."
  (let ((print-circle (not no-circular))
        print-level
        print-length
        print-quoted
        (print-escape-control-characters t)
        (print-escape-nonascii t)
        (print-continuous-numbering t)
        print-number-table
        (start-time (float-time)))
    (unless (file-exists-p (file-name-directory file))
      (make-directory (file-name-directory file) t))
    (with-temp-file file
      (if pp
          (let ((pp-use-max-width nil)) ; Emacs bug#58687
            (pp data (current-buffer)))
        (prin1 data (current-buffer))))
    (org-persist--display-time
     (- (float-time) start-time)
     "Writing to %S" file)))

(defmacro org-persist-gc:generic (container collection)
  "Garbage collect CONTAINER data from COLLECTION."
  `(let* ((c (org-persist--normalize-container ,container))
          (gc-func-symbol (intern (format "org-persist-gc:%s" (car c)))))
     (unless (fboundp gc-func-symbol)
       (error "org-persist: GC function %s not defined"
              gc-func-symbol))
     (funcall gc-func-symbol c ,collection)))

(defmacro org-persist--gc-expired-p (cnd collection)
  "Check if expiry condition CND triggers for COLLECTION."
  `(pcase ,cnd
     (`nil t)
     (`never nil)
     ((pred numberp)
      (when (plist-get ,collection :last-access)
        (> (float-time) (+ (plist-get ,collection :last-access) (* ,cnd 24 60 60)))))
     ((pred functionp)
      (funcall ,cnd ,collection))
     (_ (error "org-persist: Unsupported expiry type %S" ,cnd))))

;;;; Working with index

(defmacro org-persist-collection-let (collection &rest body)
  "Bind container and associated from COLLECTION and execute BODY."
  (declare (debug (form body)) (indent 1))
  `(with-no-warnings
     (let* ((container (plist-get ,collection :container))
            (associated (plist-get ,collection :associated))
            (path (plist-get associated :file))
            (inode (plist-get associated :inode))
            (hash (plist-get associated :hash))
            (key (plist-get associated :key)))
       ;; Suppress "unused variable" warnings.
       (ignore container associated path inode hash key)
       ,@body)))

(defun org-persist--find-index (collection)
"Find COLLECTION in `org-persist--index'."
(org-persist-collection-let collection
  (and org-persist--index-hash
       (catch :found
         (dolist (cont (cons container container))
           (let (r)
             (setq r (or (gethash (cons cont associated) org-persist--index-hash)
                         (and path (gethash (cons cont (list :file path)) org-persist--index-hash))
                         (and inode (gethash (cons cont (list :inode inode)) org-persist--index-hash))
                         (and hash (gethash (cons cont (list :hash hash)) org-persist--index-hash))
                         (and key (gethash (cons cont (list :key key)) org-persist--index-hash))))
             (when r (throw :found r))))))))

(defun org-persist--add-to-index (collection &optional hash-only)
  "Add or update COLLECTION in `org-persist--index'.
When optional HASH-ONLY is non-nil, only modify the hash table.
Return PLIST."
  (org-persist-collection-let collection
    (let ((existing (org-persist--find-index collection)))
      (if existing
          (progn
            (plist-put existing :container container)
            (plist-put (plist-get existing :associated) :file path)
            (plist-put (plist-get existing :associated) :inode inode)
            (plist-put (plist-get existing :associated) :hash hash)
            (plist-put (plist-get existing :associated) :key key)
            existing)
        (unless hash-only (push collection org-persist--index))
        (unless org-persist--index-hash (setq org-persist--index-hash (make-hash-table :test 'equal)))
        (dolist (cont (cons container container))
          (puthash (cons cont associated) collection org-persist--index-hash)
          (when path (puthash (cons cont (list :file path)) collection org-persist--index-hash))
          (when inode (puthash (cons cont (list :inode inode)) collection org-persist--index-hash))
          (when hash (puthash (cons cont (list :hash inode)) collection org-persist--index-hash))
          (when key (puthash (cons cont (list :key inode)) collection org-persist--index-hash)))
        collection))))

(defun org-persist--remove-from-index (collection)
  "Remove COLLECTION from `org-persist--index'."
  (let ((existing (org-persist--find-index collection)))
    (when existing
      (org-persist-collection-let collection
        (dolist (cont (cons container container))
          (unless (listp (car container))
            (org-persist-gc:generic cont collection))
          (remhash (cons cont associated) org-persist--index-hash)
          (when path (remhash (cons cont (list :file path)) org-persist--index-hash))
          (when inode (remhash (cons cont (list :inode inode)) org-persist--index-hash))
          (when hash (remhash (cons cont (list :hash hash)) org-persist--index-hash))
          (when key (remhash (cons cont (list :key key)) org-persist--index-hash))))
      (setq org-persist--index (delq existing org-persist--index)))))

(defun org-persist--get-collection (container &optional associated misc)
  "Return or create collection used to store CONTAINER for ASSOCIATED.
When ASSOCIATED is nil, it is a global CONTAINER.
ASSOCIATED can also be a (:buffer buffer) or buffer, (:file file-path)
or file-path, (:inode inode), (:hash hash), or or (:key key).
MISC, if non-nil will be appended to the collection.  It must be a plist."
  (unless (and (listp container) (listp (car container)))
    (setq container (list container)))
  (setq associated (org-persist--normalize-associated associated))
  (when (and misc (or (not (listp misc)) (= 1 (% (length misc) 2))))
    (error "org-persist: Not a plist: %S" misc))
  (or (org-persist--find-index
       `( :container ,(org-persist--normalize-container container)
          :associated ,associated))
      (org-persist--add-to-index
       (nconc
        (list :container (org-persist--normalize-container container)
              :persist-file
              (replace-regexp-in-string "^.." "\\&/" (org-id-uuid))
              :associated associated)
        misc))))

;;;; Reading container data.

(defun org-persist--normalize-container (container)
  "Normalize CONTAINER representation into (type . settings)."
  (if (and (listp container) (listp (car container)))
      (mapcar #'org-persist--normalize-container container)
    (pcase container
      ((or `elisp `version `file `index `url)
       (list container nil))
      ((pred symbolp)
       (list `elisp container))
      (`(,(or `elisp `version `file `index `url) . ,_)
       container)
      (_ (error "org-persist: Unknown container type: %S" container)))))

(defvar org-persist--associated-buffer-cache (make-hash-table :weakness 'key)
  "Buffer hash cache.")

(defun org-persist--normalize-associated (associated)
  "Normalize ASSOCIATED representation into (:type value)."
  (pcase associated
    ((or (pred stringp) `(:file ,_))
     (unless (stringp associated)
       (setq associated (cadr associated)))
     (let* ((rtn `(:file ,associated))
            (inode (and (fboundp 'file-attribute-inode-number)
                        (file-attribute-inode-number
                         (file-attributes associated)))))
       (when inode (plist-put rtn :inode inode))
       rtn))
    ((or (pred bufferp) `(:buffer ,_))
     (unless (bufferp associated)
       (setq associated (cadr associated)))
     (let ((cached (gethash associated org-persist--associated-buffer-cache))
           file inode hash)
       (if (and cached (eq (buffer-modified-tick associated)
                           (car cached)))
           (progn
             (setq file (nth 1 cached)
                   inode (nth 2 cached)
                   hash (nth 3 cached)))
         (setq file (buffer-file-name
                     (or (buffer-base-buffer associated)
                         associated)))
         (setq inode (when (and file
                                (fboundp 'file-attribute-inode-number))
                       (file-attribute-inode-number
                        (file-attributes file))))
         (setq hash (secure-hash 'md5 associated))
         (puthash associated
                  (list (buffer-modified-tick associated)
                        file inode hash)
                  org-persist--associated-buffer-cache))
       (let ((rtn `(:hash ,hash)))
         (when file (setq rtn (plist-put rtn :file file)))
         (when inode (setq rtn (plist-put rtn :inode inode)))
         rtn)))
    ((pred listp)
     associated)
    (_ (error "Unknown associated object %S" associated))))

(defmacro org-persist-read:generic (container reference-data collection)
  "Read and return the data stored in CONTAINER.
REFERENCE-DATA is associated with CONTAINER in the persist file.
COLLECTION is the plist holding data collection."
  `(let* ((c (org-persist--normalize-container ,container))
          (read-func-symbol (intern (format "org-persist-read:%s" (car c)))))
     (setf ,collection (plist-put ,collection :last-access (float-time)))
     (setf ,collection (plist-put ,collection :last-access-hr (format-time-string "%FT%T%z" (float-time))))
     (unless (fboundp read-func-symbol)
       (error "org-persist: Read function %s not defined"
              read-func-symbol))
     (funcall read-func-symbol c ,reference-data ,collection)))

(defun org-persist-read:elisp (_ lisp-value __)
  "Read elisp container and return LISP-VALUE."
  lisp-value)

(defun org-persist-read:version (container _ __)
  "Read version CONTAINER."
  (cadr container))

(defun org-persist-read:file (_ path __)
  "Read file container from PATH."
  (when (and path (file-exists-p (org-file-name-concat org-persist-directory path)))
    (org-file-name-concat org-persist-directory path)))

(defun org-persist-read:url (_ path __)
  "Read file container from PATH."
  (when (and path (file-exists-p (org-file-name-concat org-persist-directory path)))
    (org-file-name-concat org-persist-directory path)))

(defun org-persist-read:index (cont index-file _)
  "Read index container CONT from INDEX-FILE."
  (when (file-exists-p index-file)
    (let ((index (org-persist--read-elisp-file index-file)))
      (when index
        (catch :found
          (dolist (collection index)
            (org-persist-collection-let collection
              (when (and (not associated)
                         (pcase container
                           (`((index ,version))
                            (equal version (cadr cont)))
                           (_ nil)))
                (throw :found index)))))))))

;;;; Applying container data for side effects.

(defmacro org-persist-load:generic (container reference-data collection)
  "Load the data stored in CONTAINER for side effects.
REFERENCE-DATA is associated with CONTAINER in the persist file.
COLLECTION is the plist holding data collection."
  `(let* ((container (org-persist--normalize-container ,container))
          (load-func-symbol (intern (format "org-persist-load:%s" (car container)))))
     (setf ,collection (plist-put ,collection :last-access (float-time)))
     (setf ,collection (plist-put ,collection :last-access-hr (format-time-string "%FT%T%z" (float-time))))
     (unless (fboundp load-func-symbol)
       (error "org-persist: Load function %s not defined"
              load-func-symbol))
     (funcall load-func-symbol container ,reference-data ,collection)))

(defun org-persist-load:elisp (container lisp-value collection)
  "Assign elisp CONTAINER in COLLECTION LISP-VALUE."
  (let ((lisp-symbol (cadr container))
        (buffer (when (plist-get (plist-get collection :associated) :file)
                  (get-file-buffer (plist-get (plist-get collection :associated) :file)))))
    (if buffer
        (with-current-buffer buffer
          (make-variable-buffer-local lisp-symbol)
          (set lisp-symbol lisp-value))
      (set lisp-symbol lisp-value))))

(defalias 'org-persist-load:version #'org-persist-read:version)
(defalias 'org-persist-load:file #'org-persist-read:file)

(defun org-persist-load:index (container index-file _)
  "Load `org-persist--index' from INDEX-FILE according to CONTAINER."
  (unless org-persist--index
    (setq org-persist--index (org-persist-read:index container index-file nil))
    (setq org-persist--index-hash nil)
    (if org-persist--index
        (mapc (lambda (collection) (org-persist--add-to-index collection 'hash)) org-persist--index)
      (setq org-persist--index nil)
      (when (file-exists-p org-persist-directory)
        (dolist (file (directory-files org-persist-directory 'absolute
                                       "\\`[^.][^.]"))
          (if (file-directory-p file)
              (delete-directory file t)
            (delete-file file))))
      (plist-put (org-persist--get-collection container) :expiry 'never))))

(defun org-persist--load-index ()
  "Load `org-persist--index."
  (org-persist-load:index
   `(index ,org-persist--storage-version)
   (org-file-name-concat org-persist-directory org-persist-index-file)
   nil))

;;;; Writing container data

(defmacro org-persist-write:generic (container collection)
  "Write CONTAINER in COLLECTION."
  `(let* ((c (org-persist--normalize-container ,container))
          (write-func-symbol (intern (format "org-persist-write:%s" (car c)))))
     (setf ,collection (plist-put ,collection :last-access (float-time)))
     (setf ,collection (plist-put ,collection :last-access-hr (format-time-string "%FT%T%z" (float-time))))
     (unless (fboundp write-func-symbol)
       (error "org-persist: Write function %s not defined"
              write-func-symbol))
     (funcall write-func-symbol c ,collection)))

(defun org-persist-write:elisp (container collection)
  "Write elisp CONTAINER according to COLLECTION."
  (if (and (plist-get (plist-get collection :associated) :file)
           (get-file-buffer (plist-get (plist-get collection :associated) :file)))
      (let ((buf (get-file-buffer (plist-get (plist-get collection :associated) :file))))
        ;; FIXME: There is `buffer-local-boundp' introduced in Emacs 28.
        ;; Not using it yet to keep backward compatibility.
        (condition-case nil
            (buffer-local-value (cadr container) buf)
          (void-variable nil)))
    (when (boundp (cadr container))
      (symbol-value (cadr container)))))

(defalias 'org-persist-write:version #'ignore)

(defun org-persist-write:file (c collection)
  "Write file container C according to COLLECTION."
  (org-persist-collection-let collection
    (when (or (and path (file-exists-p path))
              (and (stringp (cadr c)) (file-exists-p (cadr c))))
      (when (and (stringp (cadr c)) (file-exists-p (cadr c)))
        (setq path (cadr c)))
      (let* ((persist-file (plist-get collection :persist-file))
             (ext (file-name-extension path))
             (file-copy (org-file-name-concat
                         org-persist-directory
                         (format "%s-%s.%s" persist-file (md5 path) ext))))
        (unless (file-exists-p file-copy)
          (unless (file-exists-p (file-name-directory file-copy))
            (make-directory (file-name-directory file-copy) t))
          (copy-file path file-copy 'overwrite))
        (format "%s-%s.%s" persist-file (md5 path) ext)))))

(defun org-persist-write:url (c collection)
  "Write url container C according to COLLECTION."
  (org-persist-collection-let collection
    (when (or path (cadr c))
      (when (cadr c) (setq path (cadr c)))
      (let* ((persist-file (plist-get collection :persist-file))
             (ext (file-name-extension path))
             (file-copy (org-file-name-concat
                         org-persist-directory
                         (format "%s-%s.%s" persist-file (md5 path) ext))))
        (unless (file-exists-p file-copy)
          (unless (file-exists-p (file-name-directory file-copy))
            (make-directory (file-name-directory file-copy) t))
          (if (org--should-fetch-remote-resource-p path)
              (url-copy-file path file-copy 'overwrite)
            (error "The remote resource %S is considered unsafe, and will not be downloaded."
                   path)))
        (format "%s-%s.%s" persist-file (md5 path) ext)))))

(defun org-persist-write:index (container _)
  "Write index CONTAINER."
  (org-persist--get-collection container)
  (unless (file-exists-p org-persist-directory)
    (make-directory org-persist-directory))
  (unless (file-exists-p org-persist-directory)
    (warn "Failed to create org-persist storage in %s."
          org-persist-directory)
    (let ((dir (directory-file-name
                (file-name-as-directory org-persist-directory))))
      (while (and (not (file-exists-p dir))
                  (not (equal dir (setq dir (directory-file-name
                                           (file-name-directory dir)))))))
      (unless (file-writable-p dir)
        (message "Missing write access rights to org-persist-directory: %S"
                 org-persist-directory))))
  (when (file-exists-p org-persist-directory)
    (org-persist--write-elisp-file
     (org-file-name-concat org-persist-directory org-persist-index-file)
     org-persist--index
     t t)
    (org-file-name-concat org-persist-directory org-persist-index-file)))

(defun org-persist--save-index ()
  "Save `org-persist--index."
  (org-persist-write:index
   `(index ,org-persist--storage-version) nil))

;;;; Public API

(cl-defun org-persist-register (container &optional associated &rest misc
                               &key inherit
                               &key (expiry org-persist-default-expiry)
                               &key (write-immediately nil)
                               &allow-other-keys)
  "Register CONTAINER in ASSOCIATED to be persistent across Emacs sessions.
Optional key INHERIT makes CONTAINER dependent on another container.
Such dependency means that data shared between variables will be
preserved (see elisp#Circular Objects).
Optional key EXPIRY will set the expiry condition of the container.
It can be `never', nil - until end of session, a number of days since
last access, or a function accepting a single argument - collection.
EXPIRY key has no effect when INHERIT is non-nil.
Optional key WRITE-IMMEDIATELY controls whether to save the container
data immediately.
MISC will be appended to the collection.  It must be alternating :KEY
VALUE pairs.
When WRITE-IMMEDIATELY is non-nil, the return value will be the same
with `org-persist-write'."
  (unless org-persist--index (org-persist--load-index))
  (setq container (org-persist--normalize-container container))
  (when inherit
    (setq inherit (org-persist--normalize-container inherit))
    (let ((inherited-collection (org-persist--get-collection inherit associated))
          new-collection)
      (unless (member container (plist-get inherited-collection :container))
        (setq new-collection
              (plist-put (copy-sequence inherited-collection) :container
                         (cons container (plist-get inherited-collection :container))))
        (org-persist--remove-from-index inherited-collection)
        (org-persist--add-to-index new-collection))))
  (let ((collection (org-persist--get-collection container associated misc)))
    (when (and expiry (not inherit))
      (when expiry (plist-put collection :expiry expiry))))
  (when (or (bufferp associated) (bufferp (plist-get associated :buffer)))
    (with-current-buffer (if (bufferp associated)
                             associated
                           (plist-get associated :buffer))
      (add-hook 'kill-buffer-hook #'org-persist-write-all-buffer nil 'local)))
  (when write-immediately (org-persist-write container associated)))

(defun org-persist-unregister (container &optional associated)
  "Unregister CONTAINER in ASSOCIATED to be persistent.
When ASSOCIATED is `all', unregister CONTAINER everywhere."
  (unless org-persist--index (org-persist--load-index))
  (setq container (org-persist--normalize-container container))
  (if (eq associated 'all)
      (mapc (lambda (collection)
              (when (member container (plist-get collection :container))
                (org-persist-unregister container (plist-get collection :associated))))
            org-persist--index)
    (setq associated (org-persist--normalize-associated associated))
    (let ((collection (org-persist--find-index `(:container ,container :associated ,associated))))
      (when collection
        (if (= (length (plist-get collection :container)) 1)
            (org-persist--remove-from-index collection)
          (plist-put collection :container
                     (remove container (plist-get collection :container)))
          (org-persist--add-to-index collection))))))

(defvar org-persist--write-cache (make-hash-table :test #'equal)
  "Hash table storing as-written data objects.

This data is used to avoid reading the data multiple times.")
(defun org-persist-read (container &optional associated hash-must-match load?)
  "Restore CONTAINER data for ASSOCIATED.
When HASH-MUST-MATCH is non-nil, do not restore data if hash for
ASSOCIATED file or buffer does not match.
ASSOCIATED can be a plist, a buffer, or a string.
A buffer is treated as (:buffer ASSOCIATED).
A string is treated as (:file ASSOCIATED).
When LOAD? is non-nil, load the data instead of reading."
  (unless org-persist--index (org-persist--load-index))
  (setq associated (org-persist--normalize-associated associated))
  (setq container (org-persist--normalize-container container))
  (let* ((collection (org-persist--find-index `(:container ,container :associated ,associated)))
         (persist-file
          (when collection
            (org-file-name-concat
             org-persist-directory
             (plist-get collection :persist-file))))
         (data nil))
    (when (and collection
               (file-exists-p persist-file)
               (or (not (plist-get collection :expiry)) ; current session
                   (not (org-persist--gc-expired-p
                       (plist-get collection :expiry) collection)))
               (or (not hash-must-match)
                   (and (plist-get associated :hash)
                        (equal (plist-get associated :hash)
                               (plist-get (plist-get collection :associated) :hash)))))
      (unless (seq-find (lambda (v)
                          (run-hook-with-args-until-success 'org-persist-before-read-hook v associated))
                        (plist-get collection :container))
        (setq data (or (gethash persist-file org-persist--write-cache)
                       (org-persist--read-elisp-file persist-file)))
        (when data
          (cl-loop for container in (plist-get collection :container)
                   with result = nil
                   do
                   (if load?
                       (push (org-persist-load:generic container (alist-get container data nil nil #'equal) collection) result)
                     (push (org-persist-read:generic container (alist-get container data nil nil #'equal) collection) result))
                   (run-hook-with-args 'org-persist-after-read-hook container associated)
                   finally return (if (= 1 (length result)) (car result) result)))))))

(defun org-persist-load (container &optional associated hash-must-match)
  "Load CONTAINER data for ASSOCIATED.
The arguments have the same meaning as in `org-persist-read'."
  (org-persist-read container associated hash-must-match t))

(defun org-persist-load-all (&optional associated)
  "Restore all the persistent data associated with ASSOCIATED."
  (unless org-persist--index (org-persist--load-index))
  (setq associated (org-persist--normalize-associated associated))
  (let (all-containers)
    (dolist (collection org-persist--index)
      (when collection
        (cl-pushnew (plist-get collection :container) all-containers :test #'equal)))
    (dolist (container all-containers)
      (condition-case err
          (org-persist-load container associated t)
        (error
         (message "%s. Deleting bad index entry." err)
         (org-persist--remove-from-index (org-persist--find-index `(:container ,container :associated ,associated)))
         nil)))))

(defun org-persist-load-all-buffer ()
  "Call `org-persist-load-all' in current buffer."
  (org-persist-load-all (current-buffer)))

(defun org-persist-write (container &optional associated ignore-return)
  "Save CONTAINER according to ASSOCIATED.
ASSOCIATED can be a plist, a buffer, or a string.
A buffer is treated as (:buffer ASSOCIATED).
A string is treated as (:file ASSOCIATED).
The return value is nil when writing fails and the written value (as
returned by `org-persist-read') on success.
When IGNORE-RETURN is non-nil, just return t on success without calling
`org-persist-read'."
  (setq associated (org-persist--normalize-associated associated))
  ;; Update hash
  (when (and (plist-get associated :file)
             (plist-get associated :hash)
             (get-file-buffer (plist-get associated :file)))
    (setq associated (org-persist--normalize-associated (get-file-buffer (plist-get associated :file)))))
  (let ((collection (org-persist--get-collection container associated)))
    (setf collection (plist-put collection :associated associated))
    (unless (or
             ;; Prevent data leakage from encrypted files.
             ;; We do it in somewhat paranoid manner and do not
             ;; allow anything related to encrypted files to be
             ;; written.
             (and (plist-get associated :file)
                  (string-match-p epa-file-name-regexp (plist-get associated :file)))
             (seq-find (lambda (v)
                         (run-hook-with-args-until-success 'org-persist-before-write-hook v associated))
                       (plist-get collection :container)))
      (when (or (file-exists-p org-persist-directory) (org-persist--save-index))
        (let ((file (org-file-name-concat org-persist-directory (plist-get collection :persist-file)))
              (data (mapcar (lambda (c) (cons c (org-persist-write:generic c collection)))
                            (plist-get collection :container))))
          (puthash file data org-persist--write-cache)
          (org-persist--write-elisp-file file data)
          (or ignore-return (org-persist-read container associated)))))))

(defun org-persist-write-all (&optional associated)
  "Save all the persistent data.
When ASSOCIATED is non-nil, only save the matching data."
  (unless org-persist--index (org-persist--load-index))
  (setq associated (org-persist--normalize-associated associated))
  (if
      (and (equal 1 (length org-persist--index))
           ;; The single collection only contains a single container
           ;; in the container list.
           (equal 1 (length (plist-get (car org-persist--index) :container)))
           ;; The container is an `index' container.
           (eq 'index (caar (plist-get (car org-persist--index) :container)))
           (or (not (file-exists-p org-persist-directory))
               (org-directory-empty-p org-persist-directory)))
      ;; Do not write anything, and clear up `org-persist-directory' to reduce
      ;; clutter.
      (when (and (file-exists-p org-persist-directory)
                 (org-directory-empty-p org-persist-directory))
        (delete-directory org-persist-directory))
    ;; Write the data.
    (let (all-containers)
      (dolist (collection org-persist--index)
        (if associated
            (when collection
              (cl-pushnew (plist-get collection :container) all-containers :test #'equal))
          (condition-case err
              (org-persist-write (plist-get collection :container) (plist-get collection :associated) t)
            (error
             (message "%s. Deleting bad index entry." err)
             (org-persist--remove-from-index collection)
             nil))))
      (dolist (container all-containers)
        (let ((collection (org-persist--find-index `(:container ,container :associated ,associated))))
          (when collection
            (condition-case err
                (org-persist-write container associated t)
              (error
               (message "%s. Deleting bad index entry." err)
               (org-persist--remove-from-index collection)
               nil))))))))

(defun org-persist-write-all-buffer ()
  "Call `org-persist-write-all' in current buffer.
Do nothing in an indirect buffer."
  (unless (buffer-base-buffer (current-buffer))
    (org-persist-write-all (current-buffer))))

(defalias 'org-persist-gc:elisp #'ignore)
(defalias 'org-persist-gc:index #'ignore)

(defun org-persist-gc:file (container collection)
  "Garbage collect file CONTAINER in COLLECTION."
  (let ((file (org-persist-read container (plist-get collection :associated))))
    (when (file-exists-p file)
      (delete-file file))))

(defun org-persist-gc:url (container collection)
  "Garbage collect url CONTAINER in COLLECTION."
  (let ((file (org-persist-read container (plist-get collection :associated))))
    (when (file-exists-p file)
      (delete-file file))))

(defmacro org-persist--gc-persist-file (persist-file)
  "Garbage collect PERSIST-FILE."
  `(when (file-exists-p ,persist-file)
     (delete-file ,persist-file)
     (when (org-directory-empty-p (file-name-directory ,persist-file))
       (delete-directory (file-name-directory ,persist-file)))))

(defun org-persist-gc ()
  "Remove expired or unregistered containers.
Also, remove containers associated with non-existing files."
  (let (new-index (remote-files-num 0))
    (dolist (collection org-persist--index)
      (let* ((file (plist-get (plist-get collection :associated) :file))
             (file-remote (when file (file-remote-p file)))
             (persist-file (when (plist-get collection :persist-file)
                             (org-file-name-concat
                              org-persist-directory
                              (plist-get collection :persist-file))))
             (expired? (org-persist--gc-expired-p
                        (plist-get collection :expiry) collection)))
        (when persist-file
          (when file
            (when file-remote (cl-incf remote-files-num))
            (unless (if (not file-remote)
                        (file-exists-p file)
                      (pcase org-persist-remote-files
                        ('t t)
                        ('check-existence
                         (file-exists-p file))
                        ((pred numberp)
                         (<= org-persist-remote-files remote-files-num))
                        (_ nil)))
              (setq expired? t)))
          (if expired?
              (org-persist--gc-persist-file persist-file)
            (push collection new-index)))))
    (setq org-persist--index (nreverse new-index))))

(defun org-persist-clear-storage-maybe ()
  "Clear `org-persist-directory' according to `org-persist--disable-when-emacs-Q'.

When `org-persist--disable-when-emacs-Q' is non-nil and Emacs is called with -Q
command line argument, `org-persist-directory' is created in potentially public
system temporary directory.  Remove everything upon existing Emacs in
such scenario."
  (when (and org-persist--disable-when-emacs-Q
             ;; FIXME: This is relying on undocumented fact that
             ;; Emacs sets `user-init-file' to nil when loaded with
             ;; "-Q" argument.
             (not user-init-file)
             (file-exists-p org-persist-directory))
    (delete-directory org-persist-directory 'recursive)))

;; Point to temp directory when `org-persist--disable-when-emacs-Q' is set.
(when (and org-persist--disable-when-emacs-Q
           ;; FIXME: This is relying on undocumented fact that
           ;; Emacs sets `user-init-file' to nil when loaded with
           ;; "-Q" argument.
           (not user-init-file))
  (setq org-persist-directory
        (make-temp-file "org-persist-" 'dir)))

;; Automatically write the data, but only when we have write access.
(let ((dir (directory-file-name
            (file-name-as-directory org-persist-directory))))
  (while (and (not (file-exists-p dir))
              (not (equal dir (setq dir (directory-file-name
                                         (file-name-directory dir)))))))
  (if (not (file-writable-p dir))
      (message "Missing write access rights to org-persist-directory: %S"
               org-persist-directory)
    (add-hook 'kill-emacs-hook #'org-persist-clear-storage-maybe) ; Run last.
    (add-hook 'kill-emacs-hook #'org-persist-write-all)
    ;; `org-persist-gc' should run before `org-persist-write-all'.
    ;; So we are adding the hook after `org-persist-write-all'.
    (add-hook 'kill-emacs-hook #'org-persist-gc)))

(add-hook 'after-init-hook #'org-persist-load-all)

(provide 'org-persist)

;;; org-persist.el ends here

debug log:

solving 90c611e70 ...
found 90c611e70 in https://list.orgmode.org/orgmode/87o7obn0dp.fsf@localhost/
found 01078f459 in https://git.savannah.gnu.org/cgit/emacs/org-mode.git
preparing index
index prepared:
100644 01078f4596d831a8fbed7626eb21c3cf98cc490a	lisp/org-persist.el

applying [1/1] https://list.orgmode.org/orgmode/87o7obn0dp.fsf@localhost/
diff --git a/lisp/org-persist.el b/lisp/org-persist.el
index 01078f459..90c611e70 100644

Checking patch lisp/org-persist.el...
Applied patch lisp/org-persist.el cleanly.

index at:
100644 90c611e70c92bfd7adfa38588b38b5e954359b7a	lisp/org-persist.el

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).