forked from clojure-emacs/cider
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathcider-connection.el
1053 lines (953 loc) · 45.8 KB
/
cider-connection.el
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
;;; cider-connection.el --- Connection and session life-cycle management for CIDER -*- lexical-binding: t -*-
;;
;; Copyright © 2019-2022 Artur Malabarba, Bozhidar Batsov, Vitalie Spinu and CIDER contributors
;;
;; Author: Artur Malabarba <[email protected]>
;; Bozhidar Batsov <[email protected]>
;; Vitalie Spinu <[email protected]>
;;
;; Keywords: languages, clojure, cider
;;
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;
;; This file is not part of GNU Emacs.
;;
;;
;;; Commentary:
;;
;;
;;; Code:
(require 'nrepl-client)
(require 'cl-lib)
(require 'format-spec)
(require 'sesman)
(require 'sesman-browser)
(require 'spinner)
(require 'cider-popup)
(require 'cider-util)
(defcustom cider-session-name-template "%J:%h:%p"
"Format string to use for session names.
See `cider-format-connection-params' for available format characters."
:type 'string
:group 'cider
:package-version '(cider . "0.18.0"))
(defcustom cider-redirect-server-output-to-repl t
"Controls whether nREPL server output would be redirected to the REPL.
When non-nil the output would end up in both the nrepl-server buffer (when
available) and the matching REPL buffer."
:type 'boolean
:group 'cider
:safe #'booleanp
:package-version '(cider . "0.17.0"))
(defcustom cider-auto-mode t
"When non-nil, automatically enable cider mode for all Clojure buffers."
:type 'boolean
:group 'cider
:safe #'booleanp
:package-version '(cider . "0.9.0"))
;;;###autoload
(defcustom cider-merge-sessions nil
"Controls session combination behaviour.
Symbol `host' combines all sessions of a project associated with the same host.
Symbol `project' combines all sessions of a project.
All other values do not combine any sessions."
:type 'symbol
:group 'cider
:safe #'symbolp
:package-version '(cider . "1.5"))
(defconst cider-required-nrepl-version "0.6.0"
"The minimum nREPL version that's known to work properly with CIDER.")
;;; Connect
(defun cider-nrepl-connect (params)
"Start nrepl client and create the REPL.
PARAMS is a plist containing :host, :port, :server and other parameters for
`cider-repl-create'."
(process-buffer
(nrepl-start-client-process
(plist-get params :host)
(plist-get params :port)
(plist-get params :server)
(lambda (_)
(cider-repl-create params))
(plist-get params :socket-file))))
(defun cider-sessions ()
"Return a list of all active CIDER sessions."
(sesman-sessions 'CIDER))
(defun cider-connected-p ()
"Return t if CIDER is currently connected, nil otherwise."
(process-live-p (get-buffer-process (cider-current-repl))))
(defun cider-ensure-connected ()
"Ensure there is a linked CIDER session."
(sesman-ensure-session 'CIDER))
(defun cider--session-server (session)
"Return server buffer for SESSION or nil if there is no server."
(seq-some (lambda (r)
(buffer-local-value 'nrepl-server-buffer r))
(cdr session)))
(defun cider--gather-session-params (session)
"Gather all params for a SESSION."
(let (params)
(dolist (repl (cdr session))
(setq params (cider--gather-connect-params params repl)))
(when-let* ((server (cider--session-server session)))
(setq params (cider--gather-connect-params params server)))
params))
(defun cider--gather-connect-params (&optional params proc-buffer)
"Gather all relevant connection parameters into PARAMS plist.
PROC-BUFFER is either server or client buffer, defaults to current buffer."
(let ((proc-buffer (or proc-buffer (current-buffer))))
(with-current-buffer proc-buffer
(unless nrepl-endpoint
(error "This is not a REPL or SERVER buffer; is there an active REPL?"))
(let ((server-buf (if (nrepl-server-p proc-buffer)
proc-buffer
nrepl-server-buffer)))
(cl-loop for l on nrepl-endpoint by #'cddr
do (setq params (plist-put params (car l) (cadr l))))
(setq params (thread-first
params
(plist-put :project-dir nrepl-project-dir)))
(when (buffer-live-p server-buf)
(setq params (thread-first
params
(plist-put :server (get-buffer-process server-buf))
(plist-put :server-command nrepl-server-command))))
;; repl-specific parameters (do not pollute server params!)
(unless (nrepl-server-p proc-buffer)
(setq params (thread-first
params
(plist-put :session-name cider-session-name)
(plist-put :repl-type cider-repl-type)
(plist-put :cljs-repl-type cider-cljs-repl-type)
(plist-put :repl-init-function cider-repl-init-function))))
params))))
(defun cider--close-buffer (buffer)
"Close the BUFFER and kill its associated process (if any)."
(when (buffer-live-p buffer)
(when-let* ((proc (get-buffer-process buffer)))
(when (process-live-p proc)
(delete-process proc)))
(kill-buffer buffer)))
(declare-function cider-repl-emit-interactive-stderr "cider-repl")
(defun cider--close-connection (repl &optional no-kill)
"Close connection associated with REPL.
When NO-KILL is non-nil stop the connection but don't kill the REPL
buffer."
(when (buffer-live-p repl)
(with-current-buffer repl
(when spinner-current (spinner-stop))
(when nrepl-tunnel-buffer
(cider--close-buffer nrepl-tunnel-buffer))
(when no-kill
;; inform sentinel not to kill the server, if any
(thread-first
(get-buffer-process repl)
(process-plist)
(plist-put :keep-server t))))
(let ((proc (get-buffer-process repl)))
(when (and (process-live-p proc)
(or (not nrepl-server-buffer)
;; Sync request will hang if the server is dead.
(process-live-p (get-buffer-process nrepl-server-buffer))))
(nrepl-sync-request:close repl)
;; give a chance to the REPL to respond to the closing of the connection
(sleep-for 0.5)
(delete-process proc)))
(when-let* ((messages-buffer (and nrepl-log-messages
(nrepl-messages-buffer repl))))
(kill-buffer messages-buffer))
(unless no-kill
(kill-buffer repl)))
(when repl
(sesman-remove-object 'CIDER nil repl (not no-kill) t)))
(defun cider-emit-manual-warning (section-id format &rest args)
"Emit a warning to the REPL and link to the online manual.
SECTION-ID is the section to link to. The link is added on the last line.
FORMAT is a format string to compile with ARGS and display on the REPL."
(let ((message (apply #'format format args)))
(cider-repl-emit-interactive-stderr
(concat "WARNING: " message " ("
(cider--manual-button "More information" section-id)
")\n"))))
(defvar cider-version)
(defun cider--check-required-nrepl-version ()
"Check whether we're using a compatible nREPL version."
(if-let* ((nrepl-version (cider--nrepl-version)))
(when (version< nrepl-version cider-required-nrepl-version)
(cider-emit-manual-warning "troubleshooting.html#warning-saying-you-have-to-use-newer-nrepl"
"CIDER requires nREPL %s (or newer) to work properly"
cider-required-nrepl-version))))
(defvar cider-minimum-clojure-version)
(defun cider--check-clojure-version-supported ()
"Ensure that we are meeting the minimum supported version of Clojure."
(if-let* ((clojure-version (cider--clojure-version))
;; drop all qualifiers from the version string
;; e.g. 1.10.0-master-SNAPSHOT becomes simply 1.10.0
(clojure-version (car (split-string clojure-version "-"))))
(when (version< clojure-version cider-minimum-clojure-version)
(cider-emit-manual-warning "basics/installation.html#prerequisites"
"Clojure version (%s) is not supported (minimum %s). CIDER will not work."
clojure-version cider-minimum-clojure-version))))
(defun cider--strip-version-patch (v)
"Strips everything but major.minor from the version, returning a version list.
V is the version string to strip the patch from."
(seq-take (version-to-list v) 2))
(defun cider--compatible-middleware-version-p (required-ver ver)
"Checks that the available middleware version is compatible with the required.
We look only at the major and minor components. When the major
version is 0, only check that the minor versions match. When the major version
is > 0, first check that the major version matches, then that the minor
version is >= the required minor version.
VER the 'installed' version,
REQUIRED-VER the version required by cider."
(let ((ver* (cider--strip-version-patch ver))
(required-ver* (cider--strip-version-patch required-ver)))
(cond ((= 0 (car required-ver*)) (= (cadr required-ver*)
(cadr ver*)))
(t (and (= (car required-ver*)
(car ver*))
(version-list-<= required-ver* ver*))))))
(defvar cider-required-middleware-version)
(defun cider--check-middleware-compatibility ()
"CIDER frontend/backend compatibility check.
Retrieve the underlying connection's CIDER-nREPL version and checks if the
middleware used is compatible with CIDER. If not, will display a warning
message in the REPL area."
(let* ((version-dict (nrepl-aux-info "cider-version" (cider-current-repl)))
(middleware-version (nrepl-dict-get version-dict "version-string")))
(cond
((null middleware-version)
(cider-emit-manual-warning "troubleshooting.html#cider-complains-of-the-cider-nrepl-version"
"CIDER requires cider-nrepl to be fully functional. Some features will not be available without it!"))
((not (cider--compatible-middleware-version-p cider-required-middleware-version middleware-version))
(cider-emit-manual-warning "troubleshooting.html#cider-complains-of-the-cider-nrepl-version"
"CIDER %s requires cider-nrepl %s, but you're currently using cider-nrepl %s. The version mismatch might break some functionality!"
cider-version cider-required-middleware-version middleware-version)))))
(declare-function cider-interactive-eval-handler "cider-eval")
(declare-function cider-nrepl-send-request "cider-client")
;; TODO: Use some null handler here
(defun cider--subscribe-repl-to-server-out ()
"Subscribe to the nREPL server's *out*."
(cider-nrepl-send-request '("op" "out-subscribe")
(cider-interactive-eval-handler (current-buffer))))
(declare-function cider-mode "cider-mode")
(defun cider-enable-on-existing-clojure-buffers ()
"Enable CIDER's minor mode on existing Clojure buffers.
See command `cider-mode'."
(interactive)
(add-hook 'clojure-mode-hook #'cider-mode)
(dolist (buffer (cider-util--clojure-buffers))
(with-current-buffer buffer
(cider-mode +1)
;; In global-eldoc-mode, a new file-visiting buffer calls
;; `turn-on-eldoc-mode' which enables eldoc-mode if it's supported in that
;; buffer as determined by `eldoc--supported-p'. Cider's eldoc support
;; allows new buffers in cider-mode to enable eldoc-mode. As of 2021-04,
;; however, clojure-mode itself has no eldoc support, so old clojure
;; buffers opened before cider started aren't necessarily in eldoc-mode.
;; Here, we've enabled cider-mode for this old clojure buffer, and now, if
;; global-eldoc-mode is enabled, try to enable eldoc-mode as if the buffer
;; had just been created with cider-mode.
(when global-eldoc-mode
(turn-on-eldoc-mode)))))
(declare-function cider--debug-mode "cider-debug")
(defun cider-disable-on-existing-clojure-buffers ()
"Disable `cider-mode' and related commands on existing Clojure buffers."
(interactive)
(dolist (buffer (cider-util--clojure-buffers))
(with-current-buffer buffer
(cider--debug-mode -1)
(cider-mode -1))))
(defun cider-possibly-disable-on-existing-clojure-buffers ()
"Disable `cider-mode' in all Clojure buffers if all CIDER sessions are closed."
(unless (cider-sessions)
(cider-disable-on-existing-clojure-buffers)))
(defun cider--set-connection-capabilities (&optional conn-buffer)
"Set `cider-connection-capabilities' for CONN-BUFFER during repl init.
See `cider-connection-capabilities'."
(with-current-buffer (or conn-buffer (current-buffer))
(setf cider-connection-capabilities
(append
(pcase (cider-runtime)
('clojure '(clojure jvm-compilation-errors))
('babashka '(babashka jvm-compilation-errors))
(_ '()))
(when
(or
(eq cider-repl-type 'cljs)
;; This check is currently basically for nbb.
;; See `cider-sync-tooling-eval', but it is defined on a higher layer
(nrepl-dict-get
(nrepl-sync-request:eval "cljs.core/demunge" (current-buffer) nil 'tooling)
"value"))
'(cljs))))))
(declare-function cider--debug-init-connection "cider-debug")
(declare-function cider-repl-init "cider-repl")
(declare-function cider-nrepl-op-supported-p "cider-client")
(defun cider--connected-handler ()
"Handle CIDER initialization after nREPL connection has been established.
This function is appended to `nrepl-connected-hook' in the client process
buffer."
;; `nrepl-connected-hook' is run in the connection buffer
;; `cider-enlighten-mode' changes eval to include the debugger, so we inhibit
;; it here as the debugger isn't necessarily initialized yet
(let ((cider-enlighten-mode nil))
;; after initialization, set mode-line and buffer name.
(cider-set-repl-type cider-repl-type)
(cider-repl-init
(current-buffer)
(lambda ()
;; Init logic that's specific to Clojure's nREPL and cider-nrepl
(when (cider-runtime-clojure-p)
(cider--check-required-nrepl-version)
(cider--check-clojure-version-supported)
(cider--check-middleware-compatibility)
;; Redirect the nREPL's terminal output to a REPL buffer.
;; If we don't do this the server's output will end up
;; in the *nrepl-server* buffer.
(when (and cider-redirect-server-output-to-repl
(cider-nrepl-op-supported-p "out-subscribe"))
(cider--subscribe-repl-to-server-out))
;; Middleware on cider-nrepl's side is deferred until first usage, but
;; loading middleware concurrently can lead to occasional "require" issues
;; (likely a Clojure bug). Thus, we load the heavy debug middleware towards
;; the end, allowing for the faster "server-out" middleware to load
;; first.
(cider--debug-init-connection))
(cider--set-connection-capabilities)
(when cider-repl-init-function
(funcall cider-repl-init-function))
(when cider-auto-mode
(cider-enable-on-existing-clojure-buffers))
(run-hooks 'cider-connected-hook)))))
(defun cider--disconnected-handler ()
"Cleanup after nREPL connection has been lost or closed.
This function is appended to `nrepl-disconnected-hook' in the client
process buffer."
;; `nrepl-connected-hook' is run in the connection buffer
(cider-possibly-disable-on-existing-clojure-buffers)
(run-hooks 'cider-disconnected-hook))
;;; Connection Info
(defun cider--java-version ()
"Retrieve the underlying connection's Java version."
(with-current-buffer (cider-current-repl)
(when nrepl-versions
(thread-first
nrepl-versions
(nrepl-dict-get "java")
(nrepl-dict-get "version-string")))))
(defun cider--clojure-version ()
"Retrieve the underlying connection's Clojure version."
(with-current-buffer (cider-current-repl)
(when nrepl-versions
(thread-first
nrepl-versions
(nrepl-dict-get "clojure")
(nrepl-dict-get "version-string")))))
(defun cider--nrepl-version ()
"Retrieve the underlying connection's nREPL version."
(with-current-buffer (cider-current-repl)
(when nrepl-versions
(thread-first
nrepl-versions
(nrepl-dict-get "nrepl")
(nrepl-dict-get "version-string")))))
(defun cider--babashka-version ()
"Retrieve the underlying connection's Babashka version."
(with-current-buffer (cider-current-repl)
(when nrepl-versions
(nrepl-dict-get nrepl-versions "babashka"))))
(defun cider--babashka-nrepl-version ()
"Retrieve the underlying connection's babashka.nrepl version."
(with-current-buffer (cider-current-repl)
(when nrepl-versions
(nrepl-dict-get nrepl-versions "babashka.nrepl"))))
(defun cider-runtime ()
"Return the runtime of the nREPl server."
(cond
((cider--clojure-version) 'clojure)
((cider--babashka-version) 'babashka)
(t 'generic)))
(defun cider-runtime-clojure-p ()
"Check if the current runtime is Clojure."
(eq (cider-runtime) 'clojure))
(defun cider--connection-info (connection-buffer &optional genericp)
"Return info about CONNECTION-BUFFER.
Info contains project name, current REPL namespace, host:port endpoint and
runtime details. When GENERICP is non-nil, don't provide specific info
about this buffer (like variable `cider-repl-type')."
(with-current-buffer connection-buffer
(cond
((cider--clojure-version)
(format "%s%s@%s:%s (Java %s, Clojure %s, nREPL %s)"
(if genericp "" (upcase (concat (symbol-name cider-repl-type) " ")))
(or (cider--project-name nrepl-project-dir) "<no project>")
(plist-get nrepl-endpoint :host)
(plist-get nrepl-endpoint :port)
(cider--java-version)
(cider--clojure-version)
(cider--nrepl-version)))
((cider--babashka-version)
(format "%s%s@%s:%s (Babashka %s, babashka.nrepl %s)"
(if genericp "" (upcase (concat (symbol-name cider-repl-type) " ")))
(or (cider--project-name nrepl-project-dir) "<no project>")
(plist-get nrepl-endpoint :host)
(plist-get nrepl-endpoint :port)
(cider--babashka-version)
(cider--babashka-nrepl-version)))
(t
(format "%s%s@%s:%s"
(if genericp "" (upcase (concat (symbol-name cider-repl-type) " ")))
(or (cider--project-name nrepl-project-dir) "<no project>")
(plist-get nrepl-endpoint :host)
(plist-get nrepl-endpoint :port))))))
(defvar-local cider-connection-capabilities '()
"A list of some of the capabilities of this connection buffer.
In other words - what assumptions we make about the runtime.
This is more general than
`cider-nrepl-op-supported-p' and `cider-library-present-p'.
But does not need to replace them.")
(defun cider-connection-has-capability-p (capability &optional conn-buf)
"Return non nil when the cider connection has CAPABILITY for CONN-BUF.
By default it assumes the connection buffer is current."
(with-current-buffer (or conn-buf (current-buffer))
(member capability cider-connection-capabilities)))
;;; Connection Management Commands
(defun cider-quit (&optional repl)
"Quit the CIDER connection associated with REPL.
REPL defaults to the current REPL."
(interactive)
(let ((repl (or repl
(sesman-browser-get 'object)
(cider-current-repl nil 'ensure))))
(cider--close-connection repl))
;; if there are no more sessions we can kill all ancillary buffers
(unless (cider-sessions)
(cider-close-ancillary-buffers))
;; need this to refresh sesman browser
(run-hooks 'sesman-post-command-hook))
(defun cider-restart (&optional repl)
"Restart CIDER connection associated with REPL.
REPL defaults to the current REPL. Don't restart the server or other
connections within the same session. Use `sesman-restart' to restart the
entire session."
(interactive)
(let* ((repl (or repl
(sesman-browser-get 'object)
(cider-current-repl nil 'ensure)))
(params (thread-first
()
(cider--gather-connect-params repl)
(plist-put :session-name (sesman-session-name-for-object 'CIDER repl))
(plist-put :repl-buffer repl))))
(cider--close-connection repl 'no-kill)
(cider-nrepl-connect params)
;; need this to refresh sesman browser
(run-hooks 'sesman-post-command-hook)))
(defun cider-close-ancillary-buffers ()
"Close buffers that are shared across connections."
(interactive)
(dolist (buf-name cider-ancillary-buffers)
(when (get-buffer buf-name)
(kill-buffer buf-name))))
(defun cider-describe-connection (&optional repl)
"Display information about the connection associated with REPL.
REPL defaults to the current REPL."
(interactive)
(let ((repl (or repl
(sesman-browser-get 'object)
(cider-current-repl nil 'ensure))))
(message "%s" (cider--connection-info repl))))
(defconst cider-nrepl-session-buffer "*cider-nrepl-session*")
(declare-function cider-nrepl-eval-session "cider-client")
(declare-function cider-nrepl-tooling-session "cider-client")
(defun cider-describe-nrepl-session ()
"Describe an nREPL session."
(interactive)
(cider-ensure-connected)
(let* ((repl (cider-current-repl nil 'ensure))
(selected-session (completing-read "Describe nREPL session: " (nrepl-sessions repl))))
(when (and selected-session (not (equal selected-session "")))
(let* ((session-info (nrepl-sync-request:describe repl))
(ops (nrepl-dict-keys (nrepl-dict-get session-info "ops")))
(session-id (nrepl-dict-get session-info "session"))
(session-type (cond
((equal session-id (cider-nrepl-eval-session)) "Active eval")
((equal session-id (cider-nrepl-tooling-session)) "Active tooling")
(t "Unknown"))))
(with-current-buffer (cider-popup-buffer cider-nrepl-session-buffer 'select nil 'ancillary)
(read-only-mode -1)
(insert (format "Session: %s\n" session-id)
(format "Type: %s session\n" session-type)
(format "Supported ops:\n"))
(mapc (lambda (op) (insert (format " * %s\n" op))) ops)))
(display-buffer cider-nrepl-session-buffer))))
(defun cider-list-nrepl-middleware ()
"List the loaded nREPL middleware."
(interactive)
(cider-ensure-connected)
(let* ((repl (cider-current-repl nil 'ensure))
(middleware (nrepl-middleware repl)))
(with-current-buffer (cider-popup-buffer "*cider-nrepl-middleware*" 'select nil 'ancillary)
(read-only-mode -1)
(insert (format "Currently loaded middleware:\n"))
(mapc (lambda (mw) (insert (format " * %s\n" mw))) middleware))
(display-buffer "*cider-nrepl-middleware*")))
;;; Sesman's Session-Wise Management UI
(cl-defmethod sesman-project ((_system (eql CIDER)))
"Find project directory."
(clojure-project-dir (cider-current-dir)))
(cl-defmethod sesman-more-relevant-p ((_system (eql CIDER)) session1 session2)
"Figure out if SESSION1 or SESSION2 is more relevant."
(sesman-more-recent-p (cdr session1) (cdr session2)))
(declare-function cider-classpath-entries "cider-client")
(cl-defmethod sesman-friendly-session-p ((_system (eql CIDER)) session)
"Check if SESSION is a friendly session."
(setcdr session (seq-filter #'buffer-live-p (cdr session)))
(when-let* ((repl (cadr session))
(proc (get-buffer-process repl))
(file (file-truename (or (buffer-file-name) default-directory))))
;; With avfs paths look like /path/to/.avfs/path/to/some.jar#uzip/path/to/file.clj
(when (string-match-p "#uzip" file)
(let ((avfs-path (directory-file-name (expand-file-name (or (getenv "AVFSBASE") "~/.avfs/")))))
(setq file (replace-regexp-in-string avfs-path "" file t t))))
(when (process-live-p proc)
(let* ((classpath (or (process-get proc :cached-classpath)
(let ((cp (with-current-buffer repl
(cider-classpath-entries))))
(process-put proc :cached-classpath cp)
cp)))
(classpath-roots (or (process-get proc :cached-classpath-roots)
(let ((cp (thread-last
classpath
(seq-filter (lambda (path) (not (string-match-p "\\.jar$" path))))
(mapcar #'file-name-directory)
(seq-remove #'null)
(seq-uniq))))
(process-put proc :cached-classpath-roots cp)
cp))))
(or (seq-find (lambda (path) (string-prefix-p path file))
classpath)
(seq-find (lambda (path) (string-prefix-p path file))
classpath-roots))))))
(defvar cider-sesman-browser-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "j q") #'cider-quit)
(define-key map (kbd "j k") #'cider-quit)
(define-key map (kbd "j r") #'cider-restart)
(define-key map (kbd "j d") #'cider-describe-connection)
(define-key map (kbd "j i") #'cider-describe-connection)
(define-key map (kbd "C-c C-q") #'cider-quit)
(define-key map (kbd "C-c C-q") #'cider-quit)
(define-key map (kbd "C-c C-r") #'cider-restart)
(define-key map (kbd "C-c M-r") #'cider-restart)
(define-key map (kbd "C-c C-d") #'cider-describe-connection)
(define-key map (kbd "C-c M-d") #'cider-describe-connection)
(define-key map (kbd "C-c C-i") #'cider-describe-connection)
map)
"Map active on REPL objects in sesman browser.")
(cl-defmethod sesman-session-info ((_system (eql CIDER)) session)
"Obtain info for a CIDER SESSION."
(list :objects (cdr session)
:map cider-sesman-browser-map))
(declare-function cider "cider")
(cl-defmethod sesman-start-session ((_system (eql CIDER)))
"Start a connection of any type interactively.
Fallback on `cider' command."
(call-interactively #'cider))
(cl-defmethod sesman-quit-session ((_system (eql CIDER)) session)
"Quit a CIDER SESSION."
(mapc #'cider--close-connection (cdr session))
;; if there are no more session we can kill all ancillary buffers
(unless (cider-sessions)
(cider-close-ancillary-buffers)))
(cl-defmethod sesman-restart-session ((_system (eql CIDER)) session)
"Restart a CIDER SESSION."
(let* ((ses-name (car session))
(repls (cdr session))
(srv-buf (cider--session-server session)))
(if srv-buf
;; session with a server
(let ((s-params (cider--gather-connect-params nil srv-buf)))
;; 1) kill all connections, but keep the buffers
(mapc (lambda (conn)
(cider--close-connection conn 'no-kill))
repls)
;; 2) kill the server
(nrepl-kill-server-buffer srv-buf)
;; 3) start server
(nrepl-start-server-process
(plist-get s-params :project-dir)
(plist-get s-params :server-command)
(lambda (server-buf)
;; 4) restart the repls reusing the buffer
(dolist (r repls)
(cider-nrepl-connect
(thread-first
()
(cider--gather-connect-params r)
;; server params (:port, :project-dir etc) have precedence
(cider--gather-connect-params server-buf)
(plist-put :session-name ses-name)
(plist-put :repl-buffer r))))
(sesman-browser-revert-all 'CIDER)
(message "Restarted CIDER %s session" ses-name))))
;; server-less session
(dolist (r repls)
(cider--close-connection r 'no-kill)
(cider-nrepl-connect
(thread-first
()
(cider--gather-connect-params r)
(plist-put :session-name ses-name)
(plist-put :repl-buffer r)))))))
(defun cider-format-connection-params (template params)
"Format PARAMS with TEMPLATE string.
The following formats can be used in TEMPLATE string:
%h - host
%H - remote host, empty for local hosts
%p - port
%j - short project name, or directory name if no project
%J - long project name including parent dir name
%r - REPL type (clj or cljs)
%S - type of the ClojureScript runtime (Browser, Node, Figwheel etc.)
%s - session name as defined by `cider-session-name-template'.
In case some values are empty, extra separators (: and -) are automatically
removed."
(let* ((dir (directory-file-name
(abbreviate-file-name
(or (plist-get params :project-dir)
(clojure-project-dir (cider-current-dir))
default-directory))))
(short-proj (file-name-nondirectory (directory-file-name dir)))
(parent-dir (ignore-errors
(thread-first dir file-name-directory
directory-file-name file-name-nondirectory
file-name-as-directory)))
(long-proj (format "%s%s" (or parent-dir "") short-proj))
;; use `dir` if it is shorter than `long-proj` or `short-proj`
(short-proj (if (>= (length short-proj) (length dir))
dir
short-proj))
(long-proj (if (>= (length long-proj) (length dir))
dir
long-proj))
(port (or (plist-get params :port) ""))
(host (or (plist-get params :host) "localhost"))
(remote-host (if (member host '("localhost" "127.0.0.1"))
""
host))
(repl-type (or (plist-get params :repl-type) "unknown"))
(cljs-repl-type (or (and (eq repl-type 'cljs)
(plist-get params :cljs-repl-type))
""))
(specs `((?h . ,host)
(?H . ,remote-host)
(?p . ,port)
(?j . ,short-proj)
(?J . ,long-proj)
(?r . ,repl-type)
(?S . ,cljs-repl-type)))
(ses-name (or (plist-get params :session-name)
(format-spec cider-session-name-template specs)))
(specs (append `((?s . ,ses-name)) specs)))
(thread-last
(format-spec template specs)
;; remove extraneous separators
(replace-regexp-in-string "\\([:-]\\)[:-]+" "\\1")
(replace-regexp-in-string "\\(^[:-]\\)\\|\\([:-]$\\)" "")
(replace-regexp-in-string "[:-]\\([])*]\\)" "\\1"))))
(defun cider-make-session-name (params)
"Create new session name given plist of connection PARAMS.
Session name can be customized with `cider-session-name-template'."
(let* ((root-name (cider-format-connection-params cider-session-name-template params))
(other-names (mapcar #'car (sesman-sessions 'CIDER)))
(name root-name)
(i 2))
(while (member name other-names)
(setq name (concat root-name "#" (number-to-string i))
i (+ i 1)))
name))
;;; REPL Buffer Init
(defvar-local cider-cljs-repl-type nil
"The type of the ClojureScript runtime (Browser, Node, Figwheel, etc.).")
(defvar-local cider-repl-type nil
"The type of this REPL buffer, usually either clj or cljs.")
(defvar-local cider-repl-cljs-upgrade-pending nil
"Is the cljs repl currently pending?")
(defun cider-repl-type (repl-buffer)
"Get REPL-BUFFER's type."
(buffer-local-value 'cider-repl-type repl-buffer))
(defun cider-cljs-pending-p (repl-buffer)
"Returns non nil when REPL-BUFFER is currently a pending cljs repl."
(buffer-local-value 'cider-repl-cljs-upgrade-pending repl-buffer))
(defun cider-repl-type-for-buffer (&optional buffer)
"Return the matching connection type (clj or cljs) for BUFFER.
BUFFER defaults to the `current-buffer'. In cljc buffers return
multi. This function infers connection type based on the major mode.
For the REPL type use the function `cider-repl-type'."
(with-current-buffer (or buffer (current-buffer))
(cond
((derived-mode-p 'clojurescript-mode) 'cljs)
((derived-mode-p 'clojurec-mode) 'multi)
((derived-mode-p 'clojure-mode) 'clj)
(cider-repl-type))))
(defun cider-set-repl-type (&optional type)
"Set REPL TYPE to clj or cljs.
Assume that the current buffer is a REPL."
(interactive)
(let ((type (cider-maybe-intern (or type (completing-read
(format "Set REPL type (currently `%s') to: "
cider-repl-type)
'(clj cljs))))))
(when (or (not (equal cider-repl-type type))
(null mode-name))
(setq cider-repl-type type)
(setq mode-name (format "REPL[%s]" type))
(let ((params (cider--gather-connect-params)))
;; We need to set current name to something else temporarily to avoid
;; false name duplication in `nrepl-repl-buffer-name`.
(rename-buffer (generate-new-buffer-name "*dummy-cider-repl-buffer*"))
(rename-buffer (nrepl-repl-buffer-name params))
(when (and nrepl-log-messages nrepl-messages-buffer)
(with-current-buffer nrepl-messages-buffer
(rename-buffer (nrepl-messages-buffer-name params))))))))
(defun cider--choose-reusable-repl-buffer (params)
"Find connection-less REPL buffer and ask the user for confirmation.
Return nil if no such buffers exists or the user has chosen not to reuse
the buffer. If multiple dead REPLs exist, ask the user to choose one.
PARAMS is a plist as received by `cider-repl-create'."
(when-let* ((repls (seq-filter (lambda (b)
(with-current-buffer b
(and (derived-mode-p 'cider-repl-mode)
(not (process-live-p (get-buffer-process b))))))
(buffer-list))))
(let* ((proj-dir (plist-get params :project-dir))
(host (plist-get params :host))
(port (plist-get params :port))
(cljsp (eq (plist-get params :repl-type) 'cljs))
(scored-repls
(delq nil
(mapcar (lambda (b)
(let ((bparams (cider--gather-connect-params nil b)))
(when (and cljsp
(eq (plist-get bparams :repl-type)
'cljs))
(cons (buffer-name b)
(+
(if (equal proj-dir (plist-get bparams :project-dir)) 8 0)
(if (equal host (plist-get bparams :host)) 4 0)
(if (equal port (plist-get bparams :port)) 2 0))))))
repls))))
(when scored-repls
(if (> (length scored-repls) 1)
(when (y-or-n-p "Dead REPLs exist. Reuse? ")
(let ((sorted-repls (seq-sort (lambda (a b) (> (cdr a) (cdr b))) scored-repls)))
(get-buffer (completing-read "REPL to reuse: "
(mapcar #'car sorted-repls) nil t nil nil (caar sorted-repls)))))
(when (y-or-n-p (format "A dead REPL %s exists. Reuse? " (caar scored-repls)))
(get-buffer (caar scored-repls))))))))
(declare-function cider-default-err-handler "cider-eval")
(declare-function cider-repl-mode "cider-repl")
(declare-function cider-repl--state-handler "cider-repl")
(declare-function cider-repl-reset-markers "cider-repl")
(defvar-local cider-session-name nil)
(defvar-local cider-repl-init-function nil)
(defvar-local cider-launch-params nil)
(defun cider-repl-create (params)
"Create new repl buffer.
PARAMS is a plist which contains :repl-type, :host, :port, :project-dir,
:repl-init-function and :session-name. When non-nil, :repl-init-function
must be a function with no arguments which is called after repl creation
function with the repl buffer set as current."
;; Connection might not have been set as yet. Please don't send requests in
;; this function, but use cider--connected-handler instead.
(let ((buffer (or (plist-get params :repl-buffer)
(cider--choose-reusable-repl-buffer params)
(get-buffer-create (generate-new-buffer-name "*cider-uninitialized-repl*"))))
(ses-name (or (plist-get params :session-name)
(cider-make-session-name params))))
(with-current-buffer buffer
(setq-local sesman-system 'CIDER)
(setq-local default-directory (or (plist-get params :project-dir) default-directory))
;; creates a new session if session with ses-name doesn't already exist
(sesman-add-object 'CIDER ses-name buffer 'allow-new)
(unless (derived-mode-p 'cider-repl-mode)
(cider-repl-mode))
(setq nrepl-err-handler #'cider-default-err-handler
;; used as a new-repl marker in cider-set-repl-type
mode-name nil
cider-session-name ses-name
nrepl-project-dir (plist-get params :project-dir)
;; Cljs repls are pending until they are upgraded. See cider-repl--state-handler
cider-repl-type (plist-get params :repl-type)
cider-repl-cljs-upgrade-pending (plist-get params :cider-repl-cljs-upgrade-pending)
;; ran at the end of cider--connected-handler
cider-repl-init-function (plist-get params :repl-init-function)
cider-launch-params params)
(cider-repl-reset-markers)
(add-hook 'nrepl-response-handler-functions #'cider-repl--state-handler nil 'local)
(add-hook 'nrepl-connected-hook #'cider--connected-handler nil 'local)
(add-hook 'nrepl-disconnected-hook #'cider--disconnected-handler nil 'local)
(current-buffer))))
;;; Current/other REPLs
(defun cider--no-repls-user-error (type)
"Throw \"No REPL\" user error customized for TYPE."
(let ((type (cond
((or (eq type 'multi) (eq type 'any))
"clj or cljs")
((listp type)
(mapconcat #'identity type " or "))
(type))))
(user-error "No %s REPLs in current session \"%s\""
type (car (sesman-current-session 'CIDER)))))
(defun cider-current-repl (&optional type ensure)
"Get the most recent REPL of TYPE from the current session.
TYPE is either clj, cljs, multi or any.
When nil, infer the type from the current buffer.
If ENSURE is non-nil, throw an error if either there is
no linked session or there is no REPL of TYPE within the current session."
(let ((type (cider-maybe-intern type)))
(if (and (derived-mode-p 'cider-repl-mode)
(or (null type)
(eq 'any type)
(eq cider-repl-type type)))
;; shortcut when in REPL buffer
(current-buffer)
(let* ((type (or type (cider-repl-type-for-buffer)))
(repls (cider-repls type ensure))
(repl (if (<= (length repls) 1)
(car repls)
;; pick the most recent one
(seq-find (lambda (b)
(member b repls))
(buffer-list)))))
(if (and ensure (null repl))
(cider--no-repls-user-error type)
repl)))))
(defun cider--match-repl-type (type buffer)
"Return non-nil if TYPE matches BUFFER's REPL type."
(let ((buffer-repl-type (cider-repl-type buffer)))
(cond ((null buffer-repl-type) nil)
((or (null type) (eq type 'multi) (eq type 'any)) t)
((listp type) (member buffer-repl-type type))
(t
(or (string= type buffer-repl-type)
(let ((capabilities
(buffer-local-value 'cider-connection-capabilities buffer)))
(cond ((listp type)
(cl-some (lambda (it) (member it capabilities)) type))
(t (member type capabilities)))))))))
(defun cider--get-host-from-session (session)
"Returns the host associated with SESSION."
(plist-get (cider--gather-session-params session)
:host))
(defun cider--make-sessions-list-with-hosts (sessions)
"Makes a list of SESSIONS and their hosts.
Returns a list of the form ((session1 host1) (session2 host2) ...)."
(mapcar (lambda (session)
(list session (cider--get-host-from-session session)))
sessions))
(defun cider--get-sessions-with-same-host (session sessions)
"Returns a list of SESSIONS with the same host as SESSION."
(mapcar #'car
(seq-filter (lambda (x)
(string-equal (cadr x)
(cider--get-host-from-session session)))
(cider--make-sessions-list-with-hosts sessions))))
(defun cider--extract-connections (sessions)
"Returns a flattened list of all session buffers in SESSIONS."
(cl-reduce (lambda (x y)
(append x (cdr y)))
sessions
:initial-value '()))
(defun cider-repls (&optional type ensure)
"Return cider REPLs of TYPE from the current session.
If TYPE is nil or multi, return all REPLs. If TYPE is a list of types,
return only REPLs of type contained in the list. If ENSURE is non-nil,
throw an error if no linked session exists."
(let ((type (cond
((listp type)
(mapcar #'cider-maybe-intern type))
((cider-maybe-intern type))))
(repls (pcase cider-merge-sessions
('host
(if ensure
(or (cider--extract-connections (cider--get-sessions-with-same-host
(sesman-current-session 'CIDER)
(sesman-current-sessions 'CIDER)))
(user-error "No linked %s sessions" 'CIDER))
(cider--extract-connections (cider--get-sessions-with-same-host
(sesman-current-session 'CIDER)
(sesman-current-sessions 'CIDER)))))
('project
(if ensure
(or (cider--extract-connections (sesman-current-sessions 'CIDER))
(user-error "No linked %s sessions" 'CIDER))
(cider--extract-connections (sesman-current-sessions 'CIDER))))
(_ (cdr (if ensure
(sesman-ensure-session 'CIDER)
(sesman-current-session 'CIDER)))))))
(or (seq-filter (lambda (b)
(unless
(cider-cljs-pending-p b)
(cider--match-repl-type type b)))
repls)