unofficial mirror of notmuch@notmuchmail.org
 help / color / mirror / Atom feed
ea6a5cf3ec0547185342098e3d82015856b0e5b2 blob 42483 bytes (raw)

   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
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
 
;;; notmuch-tree.el --- displaying notmuch forests
;;
;; Copyright © Carl Worth
;; Copyright © David Edmondson
;; Copyright © Mark Walters
;;
;; This file is part of Notmuch.
;;
;; Notmuch 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.
;;
;; Notmuch 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 Notmuch.  If not, see <https://www.gnu.org/licenses/>.
;;
;; Authors: David Edmondson <dme@dme.org>
;;          Mark Walters <markwalters1009@gmail.com>

;;; Code:

(eval-when-compile (require 'cl-lib))

(require 'mail-parse)

(require 'notmuch-lib)
(require 'notmuch-query)
(require 'notmuch-show)
(require 'notmuch-tag)
(require 'notmuch-parser)
(require 'notmuch-jump)

(declare-function notmuch-search "notmuch"
		  (&optional query oldest-first target-thread target-line))
(declare-function notmuch-call-notmuch-process "notmuch" (&rest args))
(declare-function notmuch-read-query "notmuch" (prompt))
(declare-function notmuch-search-find-thread-id "notmuch" (&optional bare))
(declare-function notmuch-search-find-subject "notmuch" ())

;; For `notmuch-tree-next-thread-from-search'.
(declare-function notmuch-search-next-thread "notmuch" ())
(declare-function notmuch-search-previous-thread "notmuch" ())
(declare-function notmuch-tree-from-search-thread "notmuch" ())

;; the following variable is defined in notmuch.el
(defvar notmuch-search-query-string)

;; this variable distinguishes the unthreaded display from the normal tree display
(defvar notmuch-tree-unthreaded nil
  "A buffer local copy of argument unthreaded to the function notmuch-tree.")
(make-variable-buffer-local 'notmuch-tree-unthreaded)

(defgroup notmuch-tree nil
  "Showing message and thread structure."
  :group 'notmuch)

(defcustom notmuch-tree-show-out nil
  "View selected messages in new window rather than split-pane."
  :type 'boolean
  :group 'notmuch-tree)

(defcustom notmuch-unthreaded-show-out t
  "View selected messages in new window rather than split-pane."
  :type 'boolean
  :group 'notmuch-tree)

(defun notmuch-tree-show-out ()
  (if notmuch-tree-unthreaded
      notmuch-unthreaded-show-out
    notmuch-tree-show-out))

(defcustom notmuch-tree-result-format
  `(("date" . "%12s  ")
    ("authors" . "%-20s")
    ((("tree" . "%s")("subject" . "%s")) ." %-54s ")
    ("tags" . "(%s)"))
  "Result formatting for tree view. Supported fields are: date,
authors, subject, tree, tags.  Tree means the thread tree
box graphics. The field may also be a list in which case
the formatting rules are applied recursively and then the
output of all the fields in the list is inserted
according to format-string.

Note the author string should not contain
whitespace (put it in the neighbouring fields instead).
For example:
        (setq notmuch-tree-result-format \(\(\"authors\" . \"%-40s\"\)
                                          \(\"subject\" . \"%s\"\)\)\)"
  :type '(alist :key-type (string) :value-type (string))
  :group 'notmuch-tree)

(defcustom notmuch-unthreaded-result-format
  `(("date" . "%12s  ")
    ("authors" . "%-20s")
    ((("subject" . "%s")) ." %-54s ")
    ("tags" . "(%s)"))
  "Result formatting for unthreaded tree view. Supported fields are: date,
authors, subject, tree, tags.  Tree means the thread tree
box graphics. The field may also be a list in which case
the formatting rules are applied recursively and then the
output of all the fields in the list is inserted
according to format-string.

Note the author string should not contain
whitespace (put it in the neighbouring fields instead).
For example:
        (setq notmuch-tree-result-format \(\(\"authors\" . \"%-40s\"\)
                                          \(\"subject\" . \"%s\"\)\)\)"
  :type '(alist :key-type (string) :value-type (string))
  :group 'notmuch-tree)

(defun notmuch-tree-result-format ()
  (if notmuch-tree-unthreaded
      notmuch-unthreaded-result-format
    notmuch-tree-result-format))

;; Faces for messages that match the query.
(defface notmuch-tree-match-face
  '((t :inherit default))
  "Default face used in tree mode face for matching messages"
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-match-date-face
  nil
  "Face used in tree mode for the date in messages matching the query."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-match-author-face
  '((((class color)
      (background dark))
     (:foreground "OliveDrab1"))
    (((class color)
      (background light))
     (:foreground "dark blue"))
    (t
     (:bold t)))
  "Face used in tree mode for the date in messages matching the query."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-match-subject-face
  nil
  "Face used in tree mode for the subject in messages matching the query."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-match-tree-face
  nil
  "Face used in tree mode for the thread tree block graphics in messages matching the query."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-match-tag-face
  '((((class color)
      (background dark))
     (:foreground "OliveDrab1"))
    (((class color)
      (background light))
     (:foreground "navy blue" :bold t))
    (t
     (:bold t)))
  "Face used in tree mode for tags in messages matching the query."
  :group 'notmuch-tree
  :group 'notmuch-faces)

;; Faces for messages that do not match the query.
(defface notmuch-tree-no-match-face
  '((t (:foreground "gray")))
  "Default face used in tree mode face for non-matching messages."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-no-match-date-face
  nil
  "Face used in tree mode for non-matching dates."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-no-match-subject-face
  nil
  "Face used in tree mode for non-matching subjects."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-no-match-tree-face
  nil
  "Face used in tree mode for the thread tree block graphics in messages matching the query."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-no-match-author-face
  nil
  "Face used in tree mode for the date in messages matching the query."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defface notmuch-tree-no-match-tag-face
  nil
  "Face used in tree mode face for non-matching tags."
  :group 'notmuch-tree
  :group 'notmuch-faces)

(defvar notmuch-tree-previous-subject
  "The subject of the most recent result shown during the async display.")
(make-variable-buffer-local 'notmuch-tree-previous-subject)

(defvar notmuch-tree-basic-query nil
  "A buffer local copy of argument query to the function notmuch-tree.")
(make-variable-buffer-local 'notmuch-tree-basic-query)

(defvar notmuch-tree-query-context nil
  "A buffer local copy of argument query-context to the function notmuch-tree.")
(make-variable-buffer-local 'notmuch-tree-query-context)

(defvar notmuch-tree-target-msg nil
  "A buffer local copy of argument target to the function notmuch-tree.")
(make-variable-buffer-local 'notmuch-tree-target-msg)

(defvar notmuch-tree-open-target nil
  "A buffer local copy of argument open-target to the function notmuch-tree.")
(make-variable-buffer-local 'notmuch-tree-open-target)

(defvar notmuch-tree-parent-buffer nil)
(make-variable-buffer-local 'notmuch-tree-parent-buffer)

(defvar notmuch-tree-message-window nil
  "The window of the message pane.

It is set in both the tree buffer and the child show buffer. It
is used to try and close the message pane when quitting tree view
or the child show buffer.")
(make-variable-buffer-local 'notmuch-tree-message-window)
(put 'notmuch-tree-message-window 'permanent-local t)

(defvar notmuch-tree-message-buffer nil
  "The buffer name of the show buffer in the message pane.

This is used to try and make sure we don't close the message pane
if the user has loaded a different buffer in that window.")
(make-variable-buffer-local 'notmuch-tree-message-buffer)
(put 'notmuch-tree-message-buffer 'permanent-local t)

(defun notmuch-tree-to-message-pane (func)
  "Execute FUNC in message pane.

This function returns a function (so can be used as a keybinding)
which executes function FUNC in the message pane if it is
open (if the message pane is closed it does nothing)."
  `(lambda ()
     ,(concat "(In message pane) " (documentation func t))
     (interactive)
     (when (window-live-p notmuch-tree-message-window)
       (with-selected-window notmuch-tree-message-window
	 (call-interactively #',func)))))

(defun notmuch-tree-inherit-from-message-pane (sym)
  "Return value of SYM in message-pane if open, or tree-pane if not."
  (if (window-live-p notmuch-tree-message-window)
      (with-selected-window notmuch-tree-message-window
	(symbol-value sym))
    (symbol-value sym)))

(defun notmuch-tree-button-activate (&optional button)
  "Activate BUTTON or button at point.

This function does not give an error if there is no button."
  (interactive)
  (let ((button (or button (button-at (point)))))
    (when button (button-activate button))))

(defun notmuch-tree-close-message-pane-and (func)
  "Close message pane and execute FUNC.

This function returns a function (so can be used as a keybinding)
which closes the message pane if open and then executes function
FUNC."
  `(lambda ()
     ,(concat "(Close message pane and) " (documentation func t))
     (interactive)
     (let ((notmuch-show-process-crypto
	    (notmuch-tree-inherit-from-message-pane 'notmuch-show-process-crypto)))
       (notmuch-tree-close-message-window)
       (call-interactively #',func))))

(defvar notmuch-tree-mode-map
  (let ((map (make-sparse-keymap)))
    (set-keymap-parent map notmuch-common-keymap)
    ;; The following override the global keymap.
    ;; Override because we want to close message pane first.
    (define-key map [remap notmuch-help]
      (notmuch-tree-close-message-pane-and #'notmuch-help))
    ;; Override because we first close message pane and then close tree buffer.
    (define-key map [remap notmuch-bury-or-kill-this-buffer] 'notmuch-tree-quit)
    ;; Override because we close message pane after the search query is entered.
    (define-key map [remap notmuch-search] 'notmuch-tree-to-search)
    ;; Override because we want to close message pane first.
    (define-key map [remap notmuch-mua-new-mail]
      (notmuch-tree-close-message-pane-and #'notmuch-mua-new-mail))
    ;; Override because we want to close message pane first.
    (define-key map [remap notmuch-jump-search]
      (notmuch-tree-close-message-pane-and #'notmuch-jump-search))

    (define-key map "S" 'notmuch-search-from-tree-current-query)
    (define-key map "U" 'notmuch-unthreaded-from-tree-current-query)
    (define-key map "Z" 'notmuch-tree-from-unthreaded-current-query)

    ;; these use notmuch-show functions directly
    (define-key map "|" 'notmuch-show-pipe-message)
    (define-key map "w" 'notmuch-show-save-attachments)
    (define-key map "v" 'notmuch-show-view-all-mime-parts)
    (define-key map "c" 'notmuch-show-stash-map)
    (define-key map "b" 'notmuch-show-resend-message)

    ;; these apply to the message pane
    (define-key map (kbd "M-TAB")
      (notmuch-tree-to-message-pane #'notmuch-show-previous-button))
    (define-key map (kbd "<backtab>")
      (notmuch-tree-to-message-pane #'notmuch-show-previous-button))
    (define-key map (kbd "TAB")
      (notmuch-tree-to-message-pane #'notmuch-show-next-button))
    (define-key map "$"
      (notmuch-tree-to-message-pane #'notmuch-show-toggle-process-crypto))

    ;; bindings from show (or elsewhere) but we close the message pane first.
    (define-key map "f"
      (notmuch-tree-close-message-pane-and #'notmuch-show-forward-message))
    (define-key map "r"
      (notmuch-tree-close-message-pane-and #'notmuch-show-reply-sender))
    (define-key map "R"
      (notmuch-tree-close-message-pane-and #'notmuch-show-reply))
    (define-key map "V"
      (notmuch-tree-close-message-pane-and #'notmuch-show-view-raw-message))

    ;; The main tree view bindings
    (define-key map (kbd "RET") 'notmuch-tree-show-message)
    (define-key map [mouse-1] 'notmuch-tree-show-message)
    (define-key map "x" 'notmuch-tree-archive-message-then-next-or-exit)
    (define-key map "X" 'notmuch-tree-archive-thread-then-exit)
    (define-key map "A" 'notmuch-tree-archive-thread-then-next)
    (define-key map "a" 'notmuch-tree-archive-message-then-next)
    (define-key map "z" 'notmuch-tree-to-tree)
    (define-key map "n" 'notmuch-tree-next-matching-message)
    (define-key map "p" 'notmuch-tree-prev-matching-message)
    (define-key map "N" 'notmuch-tree-next-message)
    (define-key map "P" 'notmuch-tree-prev-message)
    (define-key map (kbd "M-p") 'notmuch-tree-prev-thread)
    (define-key map (kbd "M-n") 'notmuch-tree-next-thread)
    (define-key map "k" 'notmuch-tag-jump)
    (define-key map "-" 'notmuch-tree-remove-tag)
    (define-key map "+" 'notmuch-tree-add-tag)
    (define-key map "*" 'notmuch-tree-tag-thread)
    (define-key map " " 'notmuch-tree-scroll-or-next)
    (define-key map (kbd "DEL") 'notmuch-tree-scroll-message-window-back)
    (define-key map "e" 'notmuch-tree-resume-message)
    map)
  "Keymap for \"notmuch tree\" buffers.")
(fset 'notmuch-tree-mode-map notmuch-tree-mode-map)

(defun notmuch-tree-get-message-properties ()
  "Return the properties of the current message as a plist.

Some useful entries are:
:headers - Property list containing the headers :Date, :Subject, :From, etc.
:tags - Tags for this message."
  (save-excursion
    (beginning-of-line)
    (get-text-property (point) :notmuch-message-properties)))

(defun notmuch-tree-set-message-properties (props)
  (save-excursion
    (beginning-of-line)
    (put-text-property (point)
		       (+ (point) 1)
		       :notmuch-message-properties props)))

(defun notmuch-tree-set-prop (prop val &optional props)
  (let ((inhibit-read-only t)
	(props (or props
		   (notmuch-tree-get-message-properties))))
    (plist-put props prop val)
    (notmuch-tree-set-message-properties props)))

(defun notmuch-tree-get-prop (prop &optional props)
  (let ((props (or props
		   (notmuch-tree-get-message-properties))))
    (plist-get props prop)))

(defun notmuch-tree-set-tags (tags)
  "Set the tags of the current message."
  (notmuch-tree-set-prop :tags tags))

(defun notmuch-tree-get-tags ()
  "Return the tags of the current message."
  (notmuch-tree-get-prop :tags))

(defun notmuch-tree-get-message-id (&optional bare)
  "Return the message id of the current message."
  (let ((id (notmuch-tree-get-prop :id)))
    (if id
	(if bare
	    id
	  (notmuch-id-to-query id))
      nil)))

(defun notmuch-tree-get-match ()
  "Return whether the current message is a match."
  (interactive)
  (notmuch-tree-get-prop :match))

(defun notmuch-tree-refresh-result ()
  "Redisplay the current message line.

This redisplays the current line based on the messages
properties (as they are now). This is used when tags are
updated."
  (let ((init-point (point))
	(end (line-end-position))
	(msg (notmuch-tree-get-message-properties))
	(inhibit-read-only t))
    (beginning-of-line)
    ;; This is a little tricky: we override
    ;; notmuch-tree-previous-subject to get the decision between
    ;; ... and a subject right and it stops notmuch-tree-insert-msg
    ;; from overwriting the buffer local copy of
    ;; notmuch-tree-previous-subject if this is called while the
    ;; buffer is displaying.
    (let ((notmuch-tree-previous-subject
	   (notmuch-tree-get-prop :previous-subject)))
      (delete-region (point) (1+ (line-end-position)))
      (notmuch-tree-insert-msg msg))
    (let ((new-end (line-end-position)))
      (goto-char (if (= init-point end)
		     new-end
		   (min init-point (- new-end 1)))))))

(defun notmuch-tree-tag-update-display (&optional tag-changes)
  "Update display for TAG-CHANGES to current message.

Updates the message in the message pane if appropriate, but does
NOT change the database."
  (let* ((current-tags (notmuch-tree-get-tags))
	 (new-tags (notmuch-update-tags current-tags tag-changes))
	 (tree-msg-id (notmuch-tree-get-message-id)))
    (unless (equal current-tags new-tags)
      (notmuch-tree-set-tags new-tags)
      (notmuch-tree-refresh-result)
      (when (window-live-p notmuch-tree-message-window)
	(with-selected-window notmuch-tree-message-window
	  (when (string= tree-msg-id (notmuch-show-get-message-id))
	    (notmuch-show-update-tags new-tags)))))))

(defun notmuch-tree-tag (tag-changes)
  "Change tags for the current message."
  (interactive
   (list (notmuch-read-tag-changes (notmuch-tree-get-tags) "Tag message")))
  (notmuch-tag (notmuch-tree-get-message-id) tag-changes)
  (notmuch-tree-tag-update-display tag-changes))

(defun notmuch-tree-add-tag (tag-changes)
  "Same as `notmuch-tree-tag' but sets initial input to '+'."
  (interactive
   (list (notmuch-read-tag-changes (notmuch-tree-get-tags) "Tag message" "+")))
  (notmuch-tree-tag tag-changes))

(defun notmuch-tree-remove-tag (tag-changes)
  "Same as `notmuch-tree-tag' but sets initial input to '-'."
  (interactive
   (list (notmuch-read-tag-changes (notmuch-tree-get-tags) "Tag message" "-")))
  (notmuch-tree-tag tag-changes))

(defun notmuch-tree-resume-message ()
  "Resume EDITING the current draft message."
  (interactive)
  (notmuch-tree-close-message-window)
  (let ((id (notmuch-tree-get-message-id)))
    (if id
	(notmuch-draft-resume id)
      (message "No message to resume!"))))

;; The next two functions close the message window before calling
;; notmuch-search or notmuch-tree but they do so after the user has
;; entered the query (in case the user was basing the query on
;; something in the message window).

(defun notmuch-tree-to-search ()
  "Run \"notmuch search\" with the given `query' and display results."
  (interactive)
  (let ((query (notmuch-read-query "Notmuch search: ")))
    (notmuch-tree-close-message-window)
    (notmuch-search query)))

(defun notmuch-tree-to-tree ()
  "Run a query and display results in tree view."
  (interactive)
  (let ((query (notmuch-read-query "Notmuch tree view search: ")))
    (notmuch-tree-close-message-window)
    (notmuch-tree query)))

(defun notmuch-tree-archive-thread-then-next ()
  "Archive all messages in the current buffer, then show next thread from search."
  (interactive)
  (notmuch-tree-archive-thread)
  (notmuch-tree-next-thread))

(defun notmuch-unthreaded-from-tree-current-query ()
  "Switch from tree view to unthreaded view."
  (interactive)
  (unless notmuch-tree-unthreaded
    (notmuch-tree-refresh-view 'unthreaded)))

(defun notmuch-tree-from-unthreaded-current-query ()
  "Switch from unthreaded view to tree view."
  (interactive)
  (when notmuch-tree-unthreaded
    (notmuch-tree-refresh-view 'tree)))

(defun notmuch-search-from-tree-current-query ()
  "Call notmuch search with the current query."
  (interactive)
  (notmuch-tree-close-message-window)
  (notmuch-search (notmuch-tree-get-query)))

(defun notmuch-tree-message-window-kill-hook ()
  "Close the message pane when exiting the show buffer."
  (let ((buffer (current-buffer)))
    (when (and (window-live-p notmuch-tree-message-window)
	       (eq (window-buffer notmuch-tree-message-window) buffer))
      ;; We do not want an error if this is the sole window in the
      ;; frame and I do not know how to test for that in emacs pre
      ;; 24. Hence we just ignore-errors.
      (ignore-errors
	(delete-window notmuch-tree-message-window)))))

(defun notmuch-tree-command-hook ()
  (when (eq major-mode 'notmuch-tree-mode)
    ;; We just run the notmuch-show-command-hook on the message pane.
    (when (buffer-live-p notmuch-tree-message-buffer)
      (with-current-buffer notmuch-tree-message-buffer
	(notmuch-show-command-hook)))))

(defun notmuch-tree-show-message-in ()
  "Show the current message (in split-pane)."
  (interactive)
  (let ((id (notmuch-tree-get-message-id))
	(inhibit-read-only t)
	buffer)
    (when id
      ;; We close and reopen the window to kill off un-needed buffers
      ;; this might cause flickering but seems ok.
      (notmuch-tree-close-message-window)
      (setq notmuch-tree-message-window
	    (split-window-vertically (/ (window-height) 4)))
      (with-selected-window notmuch-tree-message-window
	(let (;; Since we are only displaying one message do not indent.
	      (notmuch-show-indent-messages-width 0)
	      (notmuch-show-only-matching-messages t)
	      ;; Ensure that `pop-to-buffer-same-window' uses the
	      ;; window we want it to use.
	      (display-buffer-overriding-action
		 '((display-buffer-same-window)
		   (inhibit-same-window . nil))))
	  (setq buffer (notmuch-show id))))
      ;; We need the `let' as notmuch-tree-message-window is buffer local.
      (let ((window notmuch-tree-message-window))
	(with-current-buffer buffer
	  (setq notmuch-tree-message-window window)
	  (add-hook 'kill-buffer-hook 'notmuch-tree-message-window-kill-hook)))
      (when notmuch-show-mark-read-tags
	(notmuch-tree-tag-update-display notmuch-show-mark-read-tags))
      (setq notmuch-tree-message-buffer buffer))))

(defun notmuch-tree-show-message-out ()
  "Show the current message (in whole window)."
  (interactive)
  (let ((id (notmuch-tree-get-message-id))
	(inhibit-read-only t)
	buffer)
    (when id
      ;; We close the window to kill off un-needed buffers.
      (notmuch-tree-close-message-window)
      (notmuch-show id))))

(defun notmuch-tree-show-message (arg)
  "Show the current message.

Shows in split pane or whole window according to value of
`notmuch-tree-show-out'. A prefix argument reverses the choice."
  (interactive "P")
  (if (or (and (notmuch-tree-show-out) (not arg))
	  (and (not (notmuch-tree-show-out)) arg))
      (notmuch-tree-show-message-out)
    (notmuch-tree-show-message-in)))

(defun notmuch-tree-scroll-message-window ()
  "Scroll the message window (if it exists)."
  (interactive)
  (when (window-live-p notmuch-tree-message-window)
    (with-selected-window notmuch-tree-message-window
      (if (pos-visible-in-window-p (point-max))
	  t
	(scroll-up)))))

(defun notmuch-tree-scroll-message-window-back ()
  "Scroll the message window back (if it exists)."
  (interactive)
  (when (window-live-p notmuch-tree-message-window)
    (with-selected-window notmuch-tree-message-window
      (if (pos-visible-in-window-p (point-min))
	  t
	(scroll-down)))))

(defun notmuch-tree-scroll-or-next ()
  "Scroll the message window.
If it at end go to next message."
  (interactive)
  (when (notmuch-tree-scroll-message-window)
    (notmuch-tree-next-matching-message)))

(defun notmuch-tree-quit (&optional kill-both)
  "Close the split view or exit tree."
  (interactive "P")
  (when (or (not (notmuch-tree-close-message-window)) kill-both)
    (kill-buffer (current-buffer))))

(defun notmuch-tree-close-message-window ()
  "Close the message-window. Return t if close succeeds."
  (interactive)
  (when (and (window-live-p notmuch-tree-message-window)
	     (eq (window-buffer notmuch-tree-message-window)
		 notmuch-tree-message-buffer))
    (delete-window notmuch-tree-message-window)
    (unless (get-buffer-window-list notmuch-tree-message-buffer)
      (kill-buffer notmuch-tree-message-buffer))
    t))

(defun notmuch-tree-archive-message (&optional unarchive)
  "Archive the current message.

Archive the current message by applying the tag changes in
`notmuch-archive-tags' to it. If a prefix argument is given, the
message will be \"unarchived\", i.e. the tag changes in
`notmuch-archive-tags' will be reversed."
  (interactive "P")
  (when notmuch-archive-tags
    (notmuch-tree-tag
     (notmuch-tag-change-list notmuch-archive-tags unarchive))))

(defun notmuch-tree-archive-message-then-next (&optional unarchive)
  "Archive the current message and move to next matching message."
  (interactive "P")
  (notmuch-tree-archive-message unarchive)
  (notmuch-tree-next-matching-message))

(defun notmuch-tree-archive-thread-then-exit ()
  "Archive all messages in the current buffer, then exit notmuch-tree."
  (interactive)
  (notmuch-tree-archive-thread)
  (notmuch-tree-quit t))

(defun notmuch-tree-archive-message-then-next-or-exit ()
  "Archive current message, then show next open message in current thread.

If at the last open message in the current thread, then exit back
to search results."
  (interactive)
  (notmuch-tree-archive-message)
  (notmuch-tree-next-matching-message t))

(defun notmuch-tree-next-message ()
  "Move to next message."
  (interactive)
  (forward-line)
  (when (window-live-p notmuch-tree-message-window)
    (notmuch-tree-show-message-in)))

(defun notmuch-tree-prev-message ()
  "Move to previous message."
  (interactive)
  (forward-line -1)
  (when (window-live-p notmuch-tree-message-window)
    (notmuch-tree-show-message-in)))

(defun notmuch-tree-goto-matching-message (&optional prev)
  "Move to the next or previous matching message.

Returns t if there was a next matching message in the thread to show,
nil otherwise."
  (let ((dir (if prev -1 nil))
	(eobfn (if prev #'bobp #'eobp)))
    (while (and (not (funcall eobfn))
		(not (notmuch-tree-get-match)))
      (forward-line dir))
    (not (funcall eobfn))))

(defun notmuch-tree-matching-message (&optional prev pop-at-end)
  "Move to the next or previous matching message."
  (interactive "P")
  (forward-line (if prev -1 nil))
  (if (and (not (notmuch-tree-goto-matching-message prev)) pop-at-end)
      (notmuch-tree-quit pop-at-end)
    (when (window-live-p notmuch-tree-message-window)
      (notmuch-tree-show-message-in))))

(defun notmuch-tree-prev-matching-message (&optional pop-at-end)
  "Move to previous matching message."
  (interactive "P")
  (notmuch-tree-matching-message t pop-at-end))

(defun notmuch-tree-next-matching-message (&optional pop-at-end)
  "Move to next matching message."
  (interactive "P")
  (notmuch-tree-matching-message nil pop-at-end))

(defun notmuch-tree-refresh-view (&optional view)
  "Refresh view."
  (interactive)
  (when (get-buffer-process (current-buffer))
    (error "notmuch tree process already running for current buffer"))
  (let ((inhibit-read-only t)
	(basic-query notmuch-tree-basic-query)
	(unthreaded (cond ((eq view 'unthreaded) t)
			  ((eq view 'tree) nil)
			  (t notmuch-tree-unthreaded)))
	(query-context notmuch-tree-query-context)
	(target (notmuch-tree-get-message-id)))
    (erase-buffer)
    (notmuch-tree-worker basic-query
			 query-context
			 target
			 nil
			 unthreaded)))

(defun notmuch-tree-thread-top ()
  (when (notmuch-tree-get-message-properties)
    (while (not (or (notmuch-tree-get-prop :first) (eobp)))
      (forward-line -1))))

(defun notmuch-tree-prev-thread-in-tree ()
  "Move to the previous thread in the current tree"
  (interactive)
  (forward-line -1)
  (notmuch-tree-thread-top)
  (not (bobp)))

(defun notmuch-tree-next-thread-in-tree ()
  "Get the next thread in the current tree. Returns t if a thread was
found or nil if not."
  (interactive)
  (forward-line 1)
  (while (not (or (notmuch-tree-get-prop :first) (eobp)))
    (forward-line 1))
  (not (eobp)))

(defun notmuch-tree-next-thread-from-search (&optional previous)
  "Move to the next thread in the parent search results, if any.

If PREVIOUS is non-nil, move to the previous item in the
search results instead."
  (interactive "P")
  (let ((parent-buffer notmuch-tree-parent-buffer))
    (notmuch-tree-quit t)
    (when (buffer-live-p parent-buffer)
      (switch-to-buffer parent-buffer)
      (if previous
	  (notmuch-search-previous-thread)
	(notmuch-search-next-thread))
      (notmuch-tree-from-search-thread))))

(defun notmuch-tree-next-thread (&optional previous)
  "Move to the next thread in the current tree or parent search
results

If PREVIOUS is non-nil, move to the previous thread in the tree or
search results instead."
  (interactive)
  (unless (if previous (notmuch-tree-prev-thread-in-tree)
	    (notmuch-tree-next-thread-in-tree))
    (notmuch-tree-next-thread-from-search previous)))

(defun notmuch-tree-prev-thread ()
  "Move to the previous thread in the current tree or parent search
results"
  (interactive)
  (notmuch-tree-next-thread t))

(defun notmuch-tree-thread-mapcar (function)
  "Iterate through all messages in the current thread
 and call FUNCTION for side effects."
  (save-excursion
    (notmuch-tree-thread-top)
    (cl-loop collect (funcall function)
	     do (forward-line)
	     while (and (notmuch-tree-get-message-properties)
			(not (notmuch-tree-get-prop :first))))))

(defun notmuch-tree-get-messages-ids-thread-search ()
  "Return a search string for all message ids of messages in the current thread."
  (mapconcat 'identity
	     (notmuch-tree-thread-mapcar 'notmuch-tree-get-message-id)
	     " or "))

(defun notmuch-tree-tag-thread (tag-changes)
  "Tag all messages in the current thread."
  (interactive
   (let ((tags (apply #'append (notmuch-tree-thread-mapcar
				(lambda () (notmuch-tree-get-tags))))))
     (list (notmuch-read-tag-changes tags "Tag thread"))))
  (when (notmuch-tree-get-message-properties)
    (notmuch-tag (notmuch-tree-get-messages-ids-thread-search) tag-changes)
    (notmuch-tree-thread-mapcar
     (lambda () (notmuch-tree-tag-update-display tag-changes)))))

(defun notmuch-tree-archive-thread (&optional unarchive)
  "Archive each message in thread.

Archive each message currently shown by applying the tag changes
in `notmuch-archive-tags' to each. If a prefix argument is given,
the messages will be \"unarchived\", i.e. the tag changes in
`notmuch-archive-tags' will be reversed.

Note: This command is safe from any race condition of new messages
being delivered to the same thread. It does not archive the
entire thread, but only the messages shown in the current
buffer."
  (interactive "P")
  (when notmuch-archive-tags
    (notmuch-tree-tag-thread
     (notmuch-tag-change-list notmuch-archive-tags unarchive))))

;; Functions below here display the tree buffer itself.

(defun notmuch-tree-clean-address (address)
  "Try to clean a single email ADDRESS for display. Return
AUTHOR_NAME if present, otherwise return AUTHOR_EMAIL. Return
unchanged ADDRESS if parsing fails."
  (let* ((clean-address (notmuch-clean-address address))
	 (p-address (car clean-address))
	 (p-name (cdr clean-address)))

    ;; If we have a name return that otherwise return the address.
    (or p-name p-address)))

(defun notmuch-tree-format-field (field format-string msg)
  "Format a FIELD of MSG according to FORMAT-STRING and return string."
  (let* ((headers (plist-get msg :headers))
	 (match (plist-get msg :match)))
    (cond
     ((listp field)
      (format format-string (notmuch-tree-format-field-list field msg)))

     ((string-equal field "date")
      (let ((face (if match
		      'notmuch-tree-match-date-face
		    'notmuch-tree-no-match-date-face)))
	(propertize (format format-string (plist-get msg :date_relative))
		    'face face)))

     ((string-equal field "tree")
      (let ((tree-status (plist-get msg :tree-status))
	    (face (if match
		      'notmuch-tree-match-tree-face
		    'notmuch-tree-no-match-tree-face)))

	(propertize (format format-string
			    (mapconcat #'identity (reverse tree-status) ""))
		    'face face)))

     ((string-equal field "subject")
      (let ((bare-subject (notmuch-show-strip-re (plist-get headers :Subject)))
	    (previous-subject notmuch-tree-previous-subject)
	    (face (if match
		      'notmuch-tree-match-subject-face
		    'notmuch-tree-no-match-subject-face)))

	(setq notmuch-tree-previous-subject bare-subject)
	(propertize (format format-string
			    (if (string= previous-subject bare-subject)
				" ..."
			      bare-subject))
		    'face face)))

     ((string-equal field "authors")
      (let ((author (notmuch-tree-clean-address (plist-get headers :From)))
	    (len (length (format format-string "")))
	    (face (if match
		      'notmuch-tree-match-author-face
		    'notmuch-tree-no-match-author-face)))
	(when (> (length author) len)
	  (setq author (substring author 0 len)))
	(propertize (format format-string author) 'face face)))

     ((string-equal field "tags")
      (let ((tags (plist-get msg :tags))
	    (orig-tags (plist-get msg :orig-tags))
	    (face (if match
		      'notmuch-tree-match-tag-face
		    'notmuch-tree-no-match-tag-face)))
	(format format-string (notmuch-tag-format-tags tags orig-tags face)))))))

(defun notmuch-tree-format-field-list (field-list msg)
  "Format fields of MSG according to FIELD-LIST and return string."
  (let ((face (if (plist-get msg :match)
		  'notmuch-tree-match-face
		'notmuch-tree-no-match-face))
	(result-string))
    (dolist (spec field-list result-string)
      (let ((field-string (notmuch-tree-format-field (car spec) (cdr spec) msg)))
	(setq result-string (concat result-string field-string))))
    (notmuch-apply-face result-string face t)))

(defun notmuch-tree-insert-msg (msg)
  "Insert the message MSG according to notmuch-tree-result-format."
  ;; We need to save the previous subject as it will get overwritten
  ;; by the insert-field calls.
  (let ((previous-subject notmuch-tree-previous-subject))
    (insert (notmuch-tree-format-field-list (notmuch-tree-result-format) msg))
    (notmuch-tree-set-message-properties msg)
    (notmuch-tree-set-prop :previous-subject previous-subject)
    (insert "\n")))

(defun notmuch-tree-goto-and-insert-msg (msg)
  "Insert msg at the end of the buffer. Move point to msg if it is the target."
  (save-excursion
    (goto-char (point-max))
    (notmuch-tree-insert-msg msg))
  (let ((msg-id (notmuch-id-to-query (plist-get msg :id)))
	(target notmuch-tree-target-msg))
    (when (or (and (not target) (plist-get msg :match))
	      (string= msg-id target))
      (setq notmuch-tree-target-msg "found")
      (goto-char (point-max))
      (forward-line -1)
      (when notmuch-tree-open-target
	(notmuch-tree-show-message-in)))))

(defun notmuch-tree-insert-tree (tree depth tree-status first last)
  "Insert the message tree TREE at depth DEPTH in the current thread.

A message tree is another name for a single sub-thread: i.e., a
message together with all its descendents."
  (let ((msg (car tree))
	(replies (cadr tree)))
    (cond
     ((and (< 0 depth) (not last))
      (push "├" tree-status))
     ((and (< 0 depth) last)
      (push "╰" tree-status))
     ((and (eq 0 depth) first last)
      ;; Choice between these two variants is a matter of taste.
      ;; (push "─" tree-status))
      (push " " tree-status))
     ((and (eq 0 depth) first (not last))
      (push "┬" tree-status))
     ((and (eq 0 depth) (not first) last)
      (push "╰" tree-status))
     ((and (eq 0 depth) (not first) (not last))
      (push "├" tree-status)))
    (push (concat (if replies "┬" "─") "►") tree-status)
    (setq msg (plist-put msg :first (and first (eq 0 depth))))
    (setq msg (plist-put msg :tree-status tree-status))
    (setq msg (plist-put msg :orig-tags (plist-get msg :tags)))
    (notmuch-tree-goto-and-insert-msg msg)
    (pop tree-status)
    (pop tree-status)
    (if last
	(push " " tree-status)
      (push "│" tree-status))
    (notmuch-tree-insert-thread replies (1+ depth) tree-status)))

(defun notmuch-tree-insert-thread (thread depth tree-status)
  "Insert the collection of sibling sub-threads THREAD at depth DEPTH in the current forest."
  (let ((n (length thread)))
    (cl-loop for tree in thread
	     for count from 1 to n
	     do (notmuch-tree-insert-tree tree depth tree-status
					  (eq count 1)
					  (eq count n)))))

(defun notmuch-tree-insert-forest-thread (forest-thread)
  "Insert a single complete thread."
  (let (tree-status)
    ;; Reset at the start of each main thread.
    (setq notmuch-tree-previous-subject nil)
    (notmuch-tree-insert-thread forest-thread 0 tree-status)))

(defun notmuch-tree-insert-forest (forest)
  "Insert a forest of threads.

This function inserts a collection of several complete threads as
passed to it by notmuch-tree-process-filter."
  (mapc 'notmuch-tree-insert-forest-thread forest))

(define-derived-mode notmuch-tree-mode fundamental-mode "notmuch-tree"
  "Major mode displaying messages (as opposed to threads) of a notmuch search.

This buffer contains the results of a \"notmuch tree\" of your
email archives. Each line in the buffer represents a single
message giving the relative date, the author, subject, and any
tags.

Pressing \\[notmuch-tree-show-message] on any line displays that message.

Complete list of currently available key bindings:

\\{notmuch-tree-mode-map}"
  (setq notmuch-buffer-refresh-function #'notmuch-tree-refresh-view)
  (hl-line-mode 1)
  (setq buffer-read-only t)
  (setq truncate-lines t))

(defun notmuch-tree-process-sentinel (proc msg)
  "Add a message to let user know when \"notmuch tree\" exits."
  (let ((buffer (process-buffer proc))
	(status (process-status proc))
	(exit-status (process-exit-status proc))
	(never-found-target-thread nil))
    (when (memq status '(exit signal))
      (kill-buffer (process-get proc 'parse-buf))
      (when (buffer-live-p buffer)
	(with-current-buffer buffer
	  (save-excursion
	    (let ((inhibit-read-only t)
		  (atbob (bobp)))
	      (goto-char (point-max))
	      (when (eq status 'signal)
		(insert "Incomplete search results (tree view process was killed).\n"))
	      (when (eq status 'exit)
		(insert "End of search results.")
		(unless (= exit-status 0)
		  (insert (format " (process returned %d)" exit-status)))
		(insert "\n")))))))))

(defun notmuch-tree-process-filter (proc string)
  "Process and filter the output of \"notmuch show\" for tree view."
  (let ((results-buf (process-buffer proc))
	(parse-buf (process-get proc 'parse-buf))
	(inhibit-read-only t)
	done)
    (if (not (buffer-live-p results-buf))
	(delete-process proc)
      (with-current-buffer parse-buf
	;; Insert new data
	(save-excursion
	  (goto-char (point-max))
	  (insert string))
	(notmuch-sexp-parse-partial-list 'notmuch-tree-insert-forest-thread
					 results-buf)))))

(defun notmuch-tree-worker (basic-query &optional query-context target open-target unthreaded)
  "Insert the tree view of the search in the current buffer.

This is is a helper function for notmuch-tree. The arguments are
the same as for the function notmuch-tree."
  (interactive)
  (notmuch-tree-mode)
  (add-hook 'post-command-hook #'notmuch-tree-command-hook t t)
  (setq notmuch-tree-unthreaded unthreaded)
  (setq notmuch-tree-basic-query basic-query)
  (setq notmuch-tree-query-context (if (or (string= query-context "")
					   (string= query-context "*"))
				       nil
				     query-context))
  (setq notmuch-tree-target-msg target)
  (setq notmuch-tree-open-target open-target)
  ;; Set the default value for `notmuch-show-process-crypto' in this
  ;; buffer. Although we don't use this some of the functions we call
  ;; (such as reply) do. It is a buffer local variable so setting it
  ;; will not affect genuine show buffers.
  (setq notmuch-show-process-crypto notmuch-crypto-process-mime)
  (erase-buffer)
  (goto-char (point-min))
  (let* ((search-args (concat basic-query
			      (and query-context
				   (concat " and (" query-context ")"))))
	 (message-arg (if unthreaded "--unthreaded" "--entire-thread")))
    (when (equal (car (process-lines notmuch-command "count" search-args)) "0")
      (setq search-args basic-query))
    (notmuch-tag-clear-cache)
    (let ((proc (notmuch-start-notmuch
		 "notmuch-tree" (current-buffer) #'notmuch-tree-process-sentinel
		 "show" "--body=false" "--format=sexp" "--format-version=4"
		 message-arg search-args))
	  ;; Use a scratch buffer to accumulate partial output.
	  ;; This buffer will be killed by the sentinel, which
	  ;; should be called no matter how the process dies.
	  (parse-buf (generate-new-buffer " *notmuch tree parse*")))
      (process-put proc 'parse-buf parse-buf)
      (set-process-filter proc 'notmuch-tree-process-filter)
      (set-process-query-on-exit-flag proc nil))))

(defun notmuch-tree-get-query ()
  "Return the current query in this tree buffer."
  (if notmuch-tree-query-context
      (concat notmuch-tree-basic-query
	      " and ("
	      notmuch-tree-query-context
	      ")")
    notmuch-tree-basic-query))

(defun notmuch-tree (&optional query query-context target buffer-name open-target unthreaded parent-buffer)
  "Display threads matching QUERY in tree view.

The arguments are:
  QUERY: the main query. This can be any query but in many cases will be
      a single thread. If nil this is read interactively from the minibuffer.
  QUERY-CONTEXT: is an additional term for the query. The query used
      is QUERY and QUERY-CONTEXT unless that does not match any messages
      in which case we fall back to just QUERY.
  TARGET: A message ID (with the id: prefix) that will be made
      current if it appears in the tree view results.
  BUFFER-NAME: the name of the buffer to display the tree view. If
      it is nil \"*notmuch-tree\" followed by QUERY is used.
  OPEN-TARGET: If TRUE open the target message in the message pane.
  UNTHREADED: If TRUE only show matching messages in an unthreaded view."
  (interactive)
  (unless query
    (setq query (notmuch-read-query (concat "Notmuch "
					    (if unthreaded "unthreaded " "tree ")
					    "view search: "))))
  (let ((buffer (get-buffer-create (generate-new-buffer-name
				    (or buffer-name
					(concat "*notmuch-"
						(if unthreaded "unthreaded-" "tree-")
						query "*")))))
	(inhibit-read-only t))
    (pop-to-buffer-same-window buffer))
  ;; Don't track undo information for this buffer
  (set 'buffer-undo-list t)
  (notmuch-tree-worker query query-context target open-target unthreaded)
  (setq notmuch-tree-parent-buffer parent-buffer)
  (setq truncate-lines t))

(defun notmuch-unthreaded (&optional query query-context target buffer-name open-target)
  (interactive)
  (notmuch-tree query query-context target buffer-name open-target t))

;;

(provide 'notmuch-tree)

;;; notmuch-tree.el ends here
debug log:

solving ea6a5cf3 ...
found ea6a5cf3 in /path/to/notmuch.git

unofficial mirror of notmuch@notmuchmail.org

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://yhetil.org/notmuch/0 notmuch/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 notmuch notmuch/ https://yhetil.org/notmuch \
		notmuch@notmuchmail.org
	public-inbox-index notmuch

Example config snippet for mirrors.
Newsgroups are available over NNTP:
	nntp://news.yhetil.org/yhetil.mail.notmuch.general
	nntp://news.gmane.io/gmane.mail.notmuch.general


AGPL code for this site: git clone http://ou63pmih66umazou.onion/public-inbox.git