-
Notifications
You must be signed in to change notification settings - Fork 14
/
undercover.el
1329 lines (1109 loc) · 55.9 KB
/
undercover.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
;;; undercover.el --- Test coverage library for Emacs Lisp -*- lexical-binding: t -*-
;; Copyright (c) 2014 Sviridov Alexander
;; Copyright (c) 2019, 2021 Vladimir Panteleev
;; Author: Sviridov Alexander <[email protected]>
;; URL: https://github.com/sviridov/undercover.el
;; Created: Sat Sep 27 2014
;; Keywords: lisp, tests, coverage, tools
;; Version: 0.8.0
;; Package-Requires: ((emacs "24") (dash "2.0.0") (shut-up "0.3.2"))
;;; Commentary:
;; Provides test coverage tools for Emacs packages.
;;; Code:
(require 'edebug)
(require 'json)
(require 'dash)
(require 'shut-up)
(defconst undercover-version "0.8.0")
;; ----------------------------------------------------------------------------
;; Global variables
(defvar undercover-force-coverage nil
"If non-nil, always collect test coverage.
If nil, test coverage will be collected only when running under a
continuous integration service.
Can also be set through the environment, by defining UNDERCOVER_FORCE.")
(setq undercover-force-coverage (getenv "UNDERCOVER_FORCE"))
(defvar undercover--report-format nil
"Indicates the format of the report file and coverage service to submit to.
If nil, auto-detect from the environment.
Configured using the :report-format configuration option.")
(defvar undercover--report-on-kill t
"If non-nil, queue generating a report before Emacs exits.
Configured using the :report-on-kill configuration option.")
(defvar undercover--send-report t
"If non-nil, upload coverage reports to the configured coverage service.
Configured using the :send-report configuration option.")
(defvar undercover--merge-report t
"If non-nil, try to merge coverage information into existing report files.
Configured using the :merge-report configuration option.")
;; Currently used levels:
;; 1 - non-fatal errors
;; 2 - warnings
;; 4 - potentially useful output which differs across Undercover runs
;; 5 - default
;; 6 - verbose messages which in some situations may point towards a problem
;; 7 - verbose informational messages
(defvar undercover--verbosity 5
"Controls the amount of messages produced.
Configured using the :verbosity configuration option.")
(defvar undercover--report-file-path nil
"The path of the file where the coverage report will be written to.
Configured using the :report-file configuration option.")
(defvar undercover--files nil
"List of files for test coverage check.")
(defvar undercover--files-coverage-statistics (make-hash-table :test 'equal)
"Table of coverage statistics for each file in `undercover--files'.")
(defvar undercover--old-edebug-make-form-wrapper
(symbol-function 'edebug-make-form-wrapper))
(defvar undercover--env nil
"Cached return value of `undercover--build-env'.")
;; ----------------------------------------------------------------------------
;; Utilities
(defun undercover--fill-hash-table (hash-table &rest keys-and-values)
"Fill HASH-TABLE from KEYS-AND-VALUES."
(declare (indent 1))
(cl-loop for (key value) on keys-and-values by #'cddr
do (puthash key value hash-table))
hash-table)
;; TODO: make this a macro, so that the values in keys-and-values are lazily
;; evaluated.
(defun undercover--add-to-hash-table (hash-table &rest keys-and-values)
"Fill HASH-TABLE from KEYS-AND-VALUES, but omit nil VALUES, and
don't overwrite existing KEYS."
(declare (indent 1))
(cl-loop for (key value) on keys-and-values by #'cddr
do (when (and value
(not (gethash key hash-table)))
(puthash key value hash-table)))
hash-table)
(defun undercover--make-hash-table (&rest keys-and-values)
"Create new hash-table and fill it from KEYS-AND-VALUES."
(apply #'undercover--fill-hash-table (make-hash-table :test 'equal) keys-and-values))
(defun undercover--wildcards-to-files (wildcards)
"Search for and return the list of files matched by WILDCARDS.
Example of WILDCARDS: (\"*.el\" \"subdir/*.el\" (:exclude \"exclude-*.el\"))."
(let (files)
(dolist (wildcard wildcards)
(setq files
(cond
((stringp wildcard)
(-union files (file-expand-wildcards wildcard)))
((and (consp wildcard) (eq :exclude (car wildcard)))
(-difference files (-mapcat #'file-expand-wildcards (cdr wildcard))))
((and (consp wildcard) (eq :files (car wildcard)))
(-union files (cdr wildcard)))
(t
(error "UNDERCOVER: Unrecognized wildcard pattern: %S" wildcard)))))
files))
(defun undercover--getenv-nonempty (name)
"Return the value of the environment variable NAME if it exists and is non-empty.
Otherwise, return nil."
(let ((value (getenv name)))
(when (not (zerop (length value)))
value)))
(defun undercover--message (level format-string &rest args)
"Log a message at the given LEVEL. FORMAT-STRING and ARGS are as in `message'."
(declare (indent 1))
(when (<= level undercover--verbosity)
(apply #'message (concat "UNDERCOVER: " format-string) args)))
;; ----------------------------------------------------------------------------
;; `edebug' related functions and hacks:
;; http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6415
(def-edebug-spec cl-destructuring-bind (sexp form body))
(def-edebug-spec destructuring-bind (sexp form body))
(def-edebug-spec cl-symbol-macrolet ((&rest (symbolp sexp)) cl-declarations body))
(def-edebug-spec symbol-macrolet ((&rest (symbolp sexp)) cl-declarations body))
(def-edebug-spec cl-type-spec sexp)
(def-edebug-spec when-let ([&or (symbolp form) (&rest (symbolp form))] body))
;; https://github.com/emacs-mirror/emacs/commit/62cf8f1649468fc2f6c4f8926ab5c4bb184bfbe8
(def-edebug-spec gv-define-setter (&define name :name gv-setter sexp def-body))
(defun undercover--fallback-file-handler (operation args)
"Handle any file OPERATION with ARGS."
(let ((inhibit-file-name-handlers
(cons 'undercover-file-handler
(and (eq inhibit-file-name-operation operation)
inhibit-file-name-handlers)))
(inhibit-file-name-operation operation))
(apply operation args)))
(defun undercover--load-file-handler (file)
"Handle the `load' FILE operation."
(undercover--message 7 "Instrumenting %s for collecting coverage information." file)
(let ((edebug-all-defs (undercover-enabled-p))
(load-file-name (file-truename file))
(load-in-progress t))
(unwind-protect
(progn
(save-excursion (eval-buffer (find-file load-file-name)))
(push load-file-name undercover--files))
(switch-to-buffer (current-buffer)))))
(defun undercover--show-load-file-error (filename load-error)
(undercover--message 1 "Error while loading %s for coverage:" filename)
(undercover--message 1 "%s" (error-message-string load-error))
(undercover--message 1 "The problem may be due to edebug failing to parse the file.")
(undercover--message 1 "You can try to narrow down the problem using the following steps:")
(undercover--message 1 "1. Open %S in an Emacs buffer;" filename)
(undercover--message 1 "2. Run M-: `%s';" "(require 'edebug)")
(undercover--message 1 "3. Run M-x `edebug-all-defs';")
(undercover--message 1 "4. Run M-x `toggle-debug-on-error'.")
(undercover--message 1 "5. Run M-x `eval-buffer';")
(undercover--message 1 "6. In the *Backtrace* buffer, find a numeric position,")
(undercover--message 1 " then M-x `goto-char' to it."))
(defun undercover-file-handler (operation &rest args)
"Handle the `load' OPERATION. Ignore all ARGS except first."
(if (eq 'load operation)
(condition-case load-error
(undercover--load-file-handler (car args))
(error
(undercover--show-load-file-error (car args) load-error)
(undercover--fallback-file-handler operation args)))
(undercover--fallback-file-handler operation args)))
(defun undercover--edebug-files (files)
"Use the `edebug' package to instrument all macros and functions in FILES."
(undercover--message 6 "Preparing to instrument %d file%s."
(length files) (if (= (length files) 1) "" "s"))
(when files
(let ((regexp (->> (-map #'expand-file-name files) (regexp-opt) (format "^%s$"))))
(add-to-list 'file-name-handler-alist (cons regexp 'undercover-file-handler)))))
(setf (symbol-function 'undercover--stop-point-before)
(lambda (before-index)
"Increase the number of times that the stop point at BEFORE-INDEX was covered."
(when (boundp 'edebug-freq-count)
(cl-incf (aref edebug-freq-count before-index)))
before-index))
(setf (symbol-function 'undercover--stop-point-after)
(cons 'macro
(lambda (before-index after-index form)
"Increase the number of times that the stop point at AFTER-INDEX was covered."
`(let ((before-index ,before-index)
(after-index ,after-index))
(unwind-protect ,form
(when (boundp 'edebug-freq-count)
(aset edebug-freq-count after-index (+ 1 (aref edebug-freq-count after-index)))
(undercover--align-counts-between-stop-points before-index after-index)))))))
(setf (symbol-function 'undercover--align-counts-between-stop-points)
(lambda (before-index after-index)
"Decrease the number of times that the stop points between BEFORE-INDEX and AFTER-INDEX are covered."
(when (boundp 'edebug-freq-count)
(cl-do ((index (1+ before-index) (1+ index)))
((>= index after-index))
(setf (aref edebug-freq-count index)
(min (aref edebug-freq-count index)
(aref edebug-freq-count before-index)))))))
(defun undercover--stop-points (name)
"Return stop points for NAME, ordered by position."
(append (nth 2 (get name 'edebug)) nil))
(defun undercover--stop-points-covers (name)
"Return number of covers for each stop point ordered by position for NAME."
(append (get name 'edebug-freq-count) nil))
(defun undercover--shut-up-edebug-message ()
"Muffle `edebug' message \"EDEBUG: function\"."
;; HACK: I don't use `defadvice' because of cryptic error with `shut-up-sink'.
;; https://travis-ci.org/sviridov/multiple-cursors.el/builds/37529750#L1387
;; https://travis-ci.org/sviridov/expand-region.el/builds/37576813#L285
(setf (symbol-function 'edebug-make-form-wrapper)
(lambda (&rest args)
(shut-up (apply undercover--old-edebug-make-form-wrapper args)))))
(defun undercover--set-edebug-handlers ()
"Replace and advise some `edebug' functions with `undercover' handlers."
(if (boundp 'edebug-behavior-alist)
;; Emacs 27.
(progn
(push `(undercover ,(nth 0 (cdr (assq 'edebug edebug-behavior-alist))) undercover--stop-point-before undercover--stop-point-after)
edebug-behavior-alist)
(setf edebug-new-definition-function #'undercover--new-definition))
;; Earlier Emacs versions.
(defalias 'edebug-before 'undercover--stop-point-before)
(defalias 'edebug-after 'undercover--stop-point-after))
(undercover--shut-up-edebug-message)
;; HACK: Ensures that debugger is turned off.
;; https://travis-ci.org/sviridov/multiple-cursors.el/builds/37672312#L350
;; https://travis-ci.org/sviridov/expand-region.el/builds/37577423#L336
(setq debug-on-error nil
debug-on-signal nil
edebug-on-error nil))
(defun undercover--new-definition (def-name)
(put def-name 'edebug-behavior 'undercover))
;; ----------------------------------------------------------------------------
;; Coverage statistics related functions:
(defun undercover--symbol-coverage-statistics (edebug-symbol statistics)
"Collect coverage statistics for EDEBUG-SYMBOL into the STATISTICS hash-table."
(let* ((start-marker (car (get edebug-symbol 'edebug)))
(points (undercover--stop-points edebug-symbol))
(points-covers (undercover--stop-points-covers edebug-symbol))
(points-and-covers (cl-map 'list #'cons points points-covers)))
(dolist (point-and-cover points-and-covers)
(let* ((point (car point-and-cover))
(line (line-number-at-pos (+ point start-marker)))
(cover (cdr point-and-cover))
(previous-score (gethash line statistics cover))
(new-score (min previous-score cover)))
(puthash line new-score statistics)))))
(defun undercover--file-coverage-statistics ()
"Collect coverage statistics for current-file into a hash-table.
The returned hash-table's keys are line numbers, and the values
are the number of times that line was covered."
(let ((statistics (make-hash-table)))
(dolist (edebug-data edebug-form-data)
(let ((edebug-symbol (car edebug-data)))
(when (get edebug-symbol 'edebug)
(undercover--symbol-coverage-statistics edebug-symbol statistics))))
statistics))
(defun undercover--collect-file-coverage (file)
"Collect coverage statistics for FILE."
(save-excursion
(find-file file)
(if edebug-form-data
(undercover--fill-hash-table undercover--files-coverage-statistics
file (undercover--file-coverage-statistics))
(setq undercover--files (delq file undercover--files)))))
(defun undercover--collect-files-coverage (files)
"Collect coverage statistics for each file in FILES."
(dolist (file files)
(undercover--collect-file-coverage file)))
;; ----------------------------------------------------------------------------
;; Continuous Integration service support:
(defun undercover--detect-ci (env)
"Detect and collect information from the CI service we are running under.
Fills the hash-table ENV with all the relevant information we
could acquire
Hash table keys are as follows:
- :ci-type
An Undercover-specific symbol indicating the CI service. Can
be used to enable special behavior in coverage data consumers.
- :ci-name
The human-readable name of the service.
- :commit
Git commit SHA1 (of the tested repository) being tested.
Some CI services may run the tests on a checkout of a commit
different than the logical commit being tested, for example, if
they first merge the tested commit into the target branch, to
test the result of the merge.
- :ref
Git ref being tested.
For a branch, this should be the form 'refs/heads/<branch-name>'.
For a tag, this should be the form 'refs/tags/<tag-name>'.
- :pull-request
A number identifying the forge's pull request number being
tested, if any.
- :build-id
A string (usually a large number) uniquely identifying the
current build. This value is unique globally per the CI
service, not just per repository.
If the service supports multiple stages, this value is the same
for all stages.
If the service supports matrix builds, this value is the same
for every matrix combination.
- :build-number
A number identifying the current build. Usually unique and
monotonically increasing per-repository, however, some services
allow manually resetting it to some value. Can be useful to
align CI service build numbers with coverage service report
numbers.
- :job-id
A string (usually a large number) uniquely identifying the
current job. This value is unique globally per the CI service,
not just per repository or per build.
If the service supports matrix builds, this value is different
for every matrix combination.
If the service does not support matrix builds, this value
should not be set.
- :job-number
A number identifying the current job. Usually unique and
monotonically increasing per-build.
If the service does not support matrix builds, this value
should not be set.
- :job-name
A human-readable string describing the current job.
User-specified, or may contain the values of the matrix
variables for the current job.
These values may be overridden through the environment (see
`undercover--read-env')."
(cond
;; GitHub Actions -- https://docs.github.com/en/actions/reference/environment-variables#default-environment-variables
((equal (getenv "GITHUB_ACTIONS") "true")
(undercover--add-to-hash-table env
:ci-type 'github-actions
:ci-name "GitHub Actions"
:commit (undercover--getenv-nonempty "GITHUB_SHA")
:ref (undercover--getenv-nonempty "GITHUB_REF")
:build-id (undercover--getenv-nonempty "GITHUB_RUN_ID")
:build-number (undercover--getenv-nonempty "GITHUB_RUN_NUMBER")))
;; Travis CI -- https://docs.travis-ci.com/user/environment-variables/#default-environment-variables
((equal (getenv "TRAVIS") "true")
(undercover--add-to-hash-table env
:ci-type 'travis-ci
:ci-name "Travis CI"
:commit (or
(undercover--getenv-nonempty "TRAVIS_PULL_REQUEST_SHA")
(undercover--getenv-nonempty "TRAVIS_COMMIT"))
:ref (cond
((undercover--getenv-nonempty "TRAVIS_TAG")
(concat "refs/tags/" (getenv "TRAVIS_TAG")))
((undercover--getenv-nonempty "TRAVIS_BRANCH")
(concat "refs/heads/" (getenv "TRAVIS_BRANCH"))))
:pull-request (-when-let (n (undercover--getenv-nonempty "TRAVIS_PULL_REQUEST"))
(unless (string-equal n "false")
n))
:build-id (undercover--getenv-nonempty "TRAVIS_BUILD_ID")
:build-number (undercover--getenv-nonempty "TRAVIS_BUILD_NUMBER")
:job-id (undercover--getenv-nonempty "TRAVIS_JOB_ID")
:job-number (-when-let (n (undercover--getenv-nonempty "TRAVIS_JOB_NUMBER"))
(cadr (split-string n "\\.")))
:job-name (undercover--getenv-nonempty "TRAVIS_JOB_NAME")))
;; Shippable -- http://docs.shippable.com/ci/env-vars/#standard-variables
((getenv "SHIPPABLE")
(undercover--add-to-hash-table env
:ci-type 'shippable
:ci-name "Shippable"
:pull-request (-when-let (n (undercover--getenv-nonempty "PULL_REQUEST"))
(unless (string-equal n "false")
n))
:build-id (undercover--getenv-nonempty "SHIPPABLE_BUILD_ID")
:build-number (undercover--getenv-nonempty "SHIPPABLE_BUILD_NUMBER")
:job-id (undercover--getenv-nonempty "SHIPPABLE_JOB_ID")))
;; Drone -- https://docs.drone.io/pipeline/environment/reference/
((equal (getenv "DRONE") "true")
(undercover--add-to-hash-table env
:ci-type 'drone
:ci-name "Drone"
:commit (undercover--getenv-nonempty "DRONE_COMMIT")
:ref (undercover--getenv-nonempty "DRONE_COMMIT_REF")
:pull-request (undercover--getenv-nonempty "DRONE_PULL_REQUEST")
:build-number (undercover--getenv-nonempty "DRONE_BUILD_NUMBER")
:job-name (undercover--getenv-nonempty "DRONE_JOB_NAME")))
;; Jenkins -- https://www.jenkins.io/doc/book/pipeline/jenkinsfile/#using-environment-variables
((or (getenv "JENKINS_URL") (getenv "JENKINS_HOME"))
(undercover--add-to-hash-table env
:ci-type 'jenkins
:ci-name "Jenkins"
;; From the Git plugin -- https://plugins.jenkins.io/git/#environment-variables
:commit (undercover--getenv-nonempty "GIT_COMMIT")
:ref (-when-let (b (undercover--getenv-nonempty "GIT_BRANCH"))
(concat "refs/heads/" b))
;; Set in multibranch pipelines -- https://www.jenkins.io/doc/book/pipeline/multibranch/#additional-environment-variables
:pull-request (undercover--getenv-nonempty "CHANGE_ID")
:build-number (undercover--getenv-nonempty "BUILD_NUMBER")))
;; Circle CI -- https://circleci.com/docs/2.0/env-vars/
((equal (getenv "CIRCLECI") "true")
(undercover--add-to-hash-table env
:ci-type 'circle-ci
:ci-name "Circle CI"
:commit (undercover--getenv-nonempty "CIRCLE_SHA1")
:ref (-when-let (b (undercover--getenv-nonempty "CIRCLE_BRANCH"))
(concat "refs/heads/" b))
:pull-request (undercover--getenv-nonempty "CIRCLE_PR_NUMBER")
:build-id (undercover--getenv-nonempty "CIRCLE_BUILD_NUM")
:job-number (undercover--getenv-nonempty "CIRCLE_NODE_INDEX")
:job-name (undercover--getenv-nonempty "CIRCLE_CI_JOB_NAME")))
;; CloudBees CodeShip -- https://docs.cloudbees.com/docs/cloudbees-codeship/latest/pro-builds-and-configuration/environment-variables#_default_environment_variables
((equal (getenv "CI_NAME") "codeship")
(undercover--add-to-hash-table env
:ci-type 'codeship
:ci-name "CodeShip"
:commit (undercover--getenv-nonempty "CI_COMMIT_ID")
:ref (-when-let (b (undercover--getenv-nonempty "CI_BRANCH"))
(concat "refs/heads/" b))
:pull-request (undercover--getenv-nonempty "CI_PR_NUMBER")
:build-id (undercover--getenv-nonempty "CI_BUILD_ID")))
;; Wercker -- https://devcenter.wercker.com/administration/environment-variables/available-env-vars/
((getenv "WERCKER")
(undercover--add-to-hash-table env
:ci-type 'wercker
:ci-name "Wercker"
:commit (undercover--getenv-nonempty "WERCKER_GIT_COMMIT")
:ref (-when-let (b (undercover--getenv-nonempty "WERCKER_GIT_BRANCH"))
(concat "refs/heads/" b))))
;; GitLab CI -- https://docs.gitlab.com/ee/ci/variables/predefined_variables.html
((getenv "GITLAB_CI")
(undercover--add-to-hash-table env
:ci-type 'gitlab-ci
:ci-name "GitLab CI"
:commit (undercover--getenv-nonempty "CI_COMMIT_SHA")
:ref (cond
((undercover--getenv-nonempty "CI_COMMIT_TAG")
(concat "refs/tags/" (getenv "CI_COMMIT_TAG")))
((undercover--getenv-nonempty "CI_COMMIT_BRANCH")
(concat "refs/heads/" (getenv "CI_COMMIT_BRANCH"))))
:pull-request (undercover--getenv-nonempty "CI_MERGE_REQUEST_IID")
:build-id (undercover--getenv-nonempty "CI_JOB_ID")
:job-number (undercover--getenv-nonempty "CI_NODE_INDEX")))
;; AppVeyor -- https://www.appveyor.com/docs/environment-variables/
((getenv "APPVEYOR")
(undercover--add-to-hash-table env
:ci-type 'appveyor
:ci-name "AppVeyor"
:commit (undercover--getenv-nonempty "APPVEYOR_REPO_COMMIT")
:ref (cond
((undercover--getenv-nonempty "APPVEYOR_REPO_TAG_NAME")
(concat "refs/tags/" (getenv "APPVEYOR_REPO_TAG_NAME")))
((undercover--getenv-nonempty "APPVEYOR_PULL_REQUEST_NUMBER")
nil)
((undercover--getenv-nonempty "APPVEYOR_REPO_BRANCH")
(concat "refs/heads/" (getenv "APPVEYOR_REPO_BRANCH"))))
:pull-request (undercover--getenv-nonempty "APPVEYOR_PULL_REQUEST_NUMBER")
:build-id (undercover--getenv-nonempty "APPVEYOR_BUILD_ID")
:build-number (undercover--getenv-nonempty "APPVEYOR_BUILD_NUMBER")
:job-id (undercover--getenv-nonempty "APPVEYOR_JOB_ID")
:job-number (undercover--getenv-nonempty "APPVEYOR_JOB_NUMBER")
:job-name (undercover--getenv-nonempty "APPVEYOR_JOB_NAME")))
;; Surf -- https://github.com/surf-build/surf#surf-build
((getenv "SURF_SHA1")
(undercover--add-to-hash-table env
:ci-type 'surf
:ci-name "Surf"
:commit (undercover--getenv-nonempty "SURF_SHA1")
:ref (undercover--getenv-nonempty "SURF_REF")
:pull-request (undercover--getenv-nonempty "SURF_PR_NUM")))
;; BuildKite -- https://buildkite.com/docs/pipelines/environment-variables
((equal (getenv "BUILDKITE") "true")
(undercover--add-to-hash-table env
:ci-type 'buildkite
:ci-name "BuildKite"
:commit (-when-let (c (undercover--getenv-nonempty "BUILDKITE_COMMIT"))
(when (string-match-p "^[0-9a-f]\\{40\\}$" c)
c))
:ref (cond
((undercover--getenv-nonempty "BUILDKITE_BRANCH")
(concat "refs/tags/" (getenv "BUILDKITE_BRANCH")))
((undercover--getenv-nonempty "BUILDKITE_TAG")
(concat "refs/heads/" (getenv "BUILDKITE_TAG"))))
:pull-request (undercover--getenv-nonempty "BUILDKITE_PULL_REQUEST")
:build-id (undercover--getenv-nonempty "BUILDKITE_BUILD_ID")
:build-number (undercover--getenv-nonempty "BUILDKITE_BUILD_NUMBER")
:job-id (undercover--getenv-nonempty "BUILDKITE_JOB_ID")
:job-name (undercover--getenv-nonempty "BUILDKITE_LABEL")))
;; Semaphore CI -- https://docs.semaphoreci.com/ci-cd-environment/environment-variables/
((equal (getenv "SEMAPHORE") "true")
(undercover--add-to-hash-table env
:ci-type 'semaphore
:ci-name "Semaphore"
:commit (undercover--getenv-nonempty "SEMAPHORE_GIT_SHA")
:ref (undercover--getenv-nonempty "SEMAPHORE_GIT_REF")
:pull-request (undercover--getenv-nonempty "SEMAPHORE_GIT_PR_NUMBER")
:build-id (undercover--getenv-nonempty "SEMAPHORE_JOB_ID")))
;; Codefresh -- https://codefresh.io/docs/docs/codefresh-yaml/variables/#system-provided-variables
((getenv "CF_REVISION")
(undercover--add-to-hash-table env
:ci-type 'codefresh
:ci-name "Codefresh"
:commit (undercover--getenv-nonempty "CF_REVISION")
:ref (-when-let (b (undercover--getenv-nonempty "CF_BRANCH"))
(concat "refs/tags/" b)) ; No way to distinguish branch/tag??
:pull-request (undercover--getenv-nonempty "CF_PULL_REQUEST_NUMBER")
:build-id (undercover--getenv-nonempty "CF_BUILD_ID")))
;; Template for new services:
;; ;; Service -- https://www.service.com/docs/environment-variables/
;; ((getenv "SERVICE")
;; (undercover--add-to-hash-table env
;; :ci-type 'service
;; :ci-name "Service"
;; :commit (undercover--getenv-nonempty "SERVICE_SHA") ;TODO
;; :ref (undercover--getenv-nonempty "SERVICE_REF") ;TODO
;; :pull-request (undercover--getenv-nonempty "SERVICE_PULL_REQUEST") ;TODO
;; :build-id (undercover--getenv-nonempty "SERVICE_BUILD_ID") ;TODO
;; :build-number (undercover--getenv-nonempty "SERVICE_BUILD_NUMBER") ;TODO
;; :job-id (undercover--getenv-nonempty "SERVICE_JOB_ID") ;TODO
;; :job-number (undercover--getenv-nonempty "SERVICE_JOB_NUMBER") ;TODO
;; :job-name (undercover--getenv-nonempty "SERVICE_JOB_NAME"))) ;TODO
))
(defun undercover--read-env (env)
"Read environment settings, allowing them to override auto-detected ones."
(undercover--add-to-hash-table env
:ci-type (-when-let (v (getenv "UNDERCOVER_CI_TYPE"))
(intern v))
:ci-name (getenv "UNDERCOVER_CI_NAME")
:commit (getenv "UNDERCOVER_COMMIT")
:ref (getenv "UNDERCOVER_REF")
:pull-request (getenv "UNDERCOVER_PULL_REQUEST")
:build-id (getenv "UNDERCOVER_BUILD_ID")
:build-number (getenv "UNDERCOVER_BUILD_NUMBER")
:job-id (getenv "UNDERCOVER_JOB_ID")
:job-number (getenv "UNDERCOVER_JOB_NUMBER")
:job-name (getenv "UNDERCOVER_JOB_NAME")))
(defun undercover--build-env ()
"Calculate and return a hash table representing Undercover's environment."
(let ((env (make-hash-table :test 'eq)))
(undercover--detect-ci env)
(undercover--message 7 "Detected CI: %s"
(or (gethash :ci-name env) "None"))
(undercover--read-env env)
env))
(defun undercover--need-env ()
"Ensure `undercover--env' is populated with the result of `undercover--build-env'."
(setq undercover--env (or undercover--env (undercover--build-env))))
(defun undercover--under-ci-p ()
"Check if Undercover is running under some continuous integration service."
(or
(gethash :ci-type (undercover--need-env))
(equal (getenv "CI") "true")))
;; ----------------------------------------------------------------------------
;; Git queries:
(defun undercover--get-git-info (&rest args)
"Execute Git with ARGS, returning the first line of its output."
(with-temp-buffer
(when (zerop (apply #'process-file "git" nil t nil "--no-pager" args))
(goto-char (point-min))
(buffer-substring-no-properties
(line-beginning-position)
(line-end-position)))))
(defun undercover--get-git-info-from-log (format ref)
"Get first line of Git log in given FORMAT."
(undercover--get-git-info "log" "-1" (format "--pretty=format:%%%s" format) ref))
(defun undercover--update-with-git (env)
"Update ENV with Git information."
(let ((ref (or (gethash :commit env)
"HEAD")))
(undercover--add-to-hash-table env
:ref (undercover--get-git-info "symbolic-ref" ref)
:commit (undercover--get-git-info-from-log "H" ref)
:author-name (undercover--get-git-info-from-log "aN" ref)
:author-email (undercover--get-git-info-from-log "ae" ref)
:committer-name (undercover--get-git-info-from-log "cN" ref)
:committer-email (undercover--get-git-info-from-log "ce" ref)
:subject (undercover--get-git-info-from-log "s" ref))))
;; ----------------------------------------------------------------------------
;; Coverage format / service support:
;; coveralls.io report:
(defun undercover-coveralls--configured-p ()
"Check if we can submit a report to Coveralls with what we have/know."
(cl-case (gethash :ci-type (undercover--need-env))
;; No / unknown CI
((nil) nil)
;; Travis CI - supported "magically" by Coveralls
(travis-ci
t)
;; GitHub Actions - need either a Coveralls repo token or a GitHub access token
(github-actions
(or
(getenv "COVERALLS_REPO_TOKEN")
(getenv "GITHUB_TOKEN")))
;; Something else - need a Coveralls repo token
(t
(getenv "COVERALLS_REPO_TOKEN"))))
(defun undercover-coveralls--get-git-remotes ()
"Return list of Git remotes."
(with-temp-buffer
(process-file "git" nil t nil "--no-pager" "remote")
(let ((remotes (split-string (buffer-string) "\n" t))
(config-path-format (format "remote.%%s.url"))
(remotes-info nil))
(dolist (remote remotes remotes-info)
(let* ((remote-url (undercover--get-git-info "config" (format config-path-format remote)))
(remote-table (undercover--make-hash-table
"name" remote
"url" remote-url)))
(push remote-table remotes-info))))))
(defun undercover-coveralls--update-report-with-env (report env)
"Update test coverage REPORT for coveralls.io with information from ENV."
(undercover--add-to-hash-table report
"service_name" (or
(getenv "COVERALLS_SERVICE_NAME")
(cl-case (gethash :ci-type env)
((nil)
(unless undercover-force-coverage
(error "UNDERCOVER: Failed to detect the CI service")))
(github-actions
;; When service_name is set to "github", Coveralls
;; expects "repo_token" to contain the GitHub access
;; token instead of the Coveralls repo token.
(cond
((getenv "COVERALLS_REPO_TOKEN")
"undercover-github-actions")
((getenv "GITHUB_TOKEN")
"github")))
(travis-ci
"travis-ci")
(shippable
"shippable") ; presumably
(drone
"drone")
(jenkins
"jenkins")
(circle-ci
"circleci")
(codeship
"codeship")
(wercker
"wercker")
(gitlab-ci
"gitlab-ci")
(appveyor
"appveyor")
(surf
"surf")
(buildkite
"buildkite")
(semaphore
"semaphore")
(codefresh
"Codefresh"))
(unless undercover-force-coverage
(error "UNDERCOVER: Failed to detect Coveralls service_name")))
"repo_token" (cond
((and (eq (gethash :ci-type env) 'github-actions)
(getenv "GITHUB_TOKEN"))
(getenv "GITHUB_TOKEN"))
(t
(getenv "COVERALLS_REPO_TOKEN")))
"service_number" (or
(getenv "COVERALLS_SERVICE_NUMBER")
(gethash :build-number env)
(gethash :build-id env))
"service_job_id" (or
(getenv "COVERALLS_SERVICE_JOB_ID")
(gethash :job-id env))
"service_pull_request" (or
(getenv "COVERALLS_SERVICE_PULL_REQUEST") ; Not official
(gethash :pull-request env))
"parallel" (if (getenv "COVERALLS_PARALLEL")
t
json-false)
"flag_name" (or
(getenv "COVERALLS_FLAG_NAME")
(gethash :job-name env))
"run_at" (getenv "COVERALLS_RUN_AT")
"git" (undercover--add-to-hash-table (undercover--make-hash-table)
"branch" (gethash :ref env)
"remotes" (undercover-coveralls--get-git-remotes)
"head" (undercover--make-hash-table
"id" (gethash :commit env)
"author_name" (gethash :author-name env)
"author_email" (gethash :author-email env)
"committer_name" (gethash :committer-name env)
"committer_email" (gethash :committer-email env)
"message" (gethash :subject env)))))
(defun undercover-coveralls--file-coverage-report (statistics)
"Translate file coverage STATISTICS into coveralls.io format."
(let (file-coverage)
(dotimes (line (count-lines (point-min) (point-max)))
(push (gethash (1+ line) statistics) file-coverage))
(nreverse file-coverage)))
(defun undercover-coveralls--file-report (file)
"Create part of coveralls.io report for FILE."
(save-excursion
(find-file file)
(let ((file-name (file-relative-name file (locate-dominating-file default-directory ".git")))
(file-content (buffer-substring-no-properties (point-min) (point-max)))
(coverage-report (undercover-coveralls--file-coverage-report
(gethash file undercover--files-coverage-statistics))))
(undercover--make-hash-table
"name" file-name
"source" file-content
"coverage" coverage-report))))
(defun undercover-coveralls--fill-report (report)
"Fill test coverage REPORT for coveralls.io."
(undercover--fill-hash-table report
"source_files" (mapcar #'undercover-coveralls--file-report undercover--files))
(let ((env (copy-hash-table (undercover--need-env))))
(undercover--update-with-git env)
(undercover-coveralls--update-report-with-env report env)))
(defun undercover-coveralls--merge-report-file-lines-coverage (old-coverage new-coverage)
"Merge test coverage for lines from OLD-COVERAGE and NEW-COVERAGE."
(cl-loop for (old-line-coverage . new-line-coverage)
in (-zip-fill 0 old-coverage new-coverage)
collect (cond
((null old-line-coverage) new-line-coverage)
((null new-line-coverage) old-line-coverage)
(t (+ new-line-coverage old-line-coverage)))))
(defun undercover-coveralls--merge-report-file-coverage (old-file-hash source-files-report)
"Merge test coverage from OLD-FILE-HASH into SOURCE-FILES-REPORT."
(let* ((file-name (gethash "name" old-file-hash))
(old-coverage (gethash "coverage" old-file-hash))
(new-file-hash (--first (string-equal file-name (gethash "name" it))
source-files-report)))
(if new-file-hash
(undercover--fill-hash-table new-file-hash
"coverage" (undercover-coveralls--merge-report-file-lines-coverage
old-coverage (gethash "coverage" new-file-hash)))
(rplacd (last source-files-report)
(cons old-file-hash nil)))))
(defun undercover-coveralls--merge-reports (report)
"Merge test coverage REPORT with existing from `undercover--report-file-path'."
(condition-case merge-error
(let* ((json-object-type 'hash-table)
(json-array-type 'list)
(old-report (json-read-file undercover--report-file-path))
(new-source-files-report (gethash "source_files" report)))
(undercover--message 7
"Merging existing Coveralls report: %s" undercover--report-file-path)
(dolist (old-file-hash (gethash "source_files" old-report))
(undercover-coveralls--merge-report-file-coverage
old-file-hash new-source-files-report)))
(error
(undercover--message 6
"Failed to merge Coveralls report: %s" merge-error))))
(defun undercover-coveralls--create-report ()
"Create test coverage report for coveralls.io."
(undercover--collect-files-coverage undercover--files)
(let ((report (make-hash-table :test 'equal)))
(undercover-coveralls--fill-report report)
(when undercover--merge-report
(undercover-coveralls--merge-reports report))
(json-encode report)))
(defun undercover-coveralls--save-report (json-report)
"Save JSON-REPORT to `undercover--report-file-path'."
(with-temp-buffer
(insert json-report)
(write-region nil nil undercover--report-file-path)))
(defun undercover-coveralls--send-report ()
"Send report to coveralls.io."
(let* ((coveralls-endpoint (or (getenv "COVERALLS_ENDPOINT")
"https://coveralls.io"))
(coveralls-url (concat coveralls-endpoint "/api/v1/jobs")))
(undercover--message 5 "Uploading report to coveralls.io")
(unless (zerop (call-process "curl"
nil
(if (>= undercover--verbosity 4)
'(:file "/dev/stderr")
nil)
t
;; "-v" "--include"
"--fail" "--silent" "--show-error"
"--form"
(concat "json_file=@" undercover--report-file-path)
coveralls-url))
(error "UNDERCOVER: Upload to coveralls.io failed"))
;; curl's output doesn't end with a newline; print one to stderr now
(external-debugging-output ?\n)
(undercover--message 5 "Upload OK")))
(defun undercover-coveralls--report ()
"Create and submit test coverage report to coveralls.io."
(let ((undercover--report-file-path (or undercover--report-file-path
"/tmp/undercover_coveralls_report")))
(undercover-coveralls--save-report (undercover-coveralls--create-report))
(when undercover--send-report
(undercover-coveralls--send-report))))
;; CodeCov report:
(defun undercover-codecov--report ()
"Save the coverage information for CodeCov."
(let ((undercover--report-file-path (or undercover--report-file-path
"coverage-final.json")))
(undercover-coveralls--save-report (undercover-coveralls--create-report))
(when undercover--send-report
(error "UNDERCOVER: Uploading reports to CodeCov is not supported.
Please disable the :send-report option and use CodeCov's upload
script (https://codecov.io/bash) instead"))))
;; LCOV report:
(defconst undercover-lcov--test-name nil
"The name of the test in the LCOV result set report (for the \"TN:\" line).
If set to nil (the default), no \"TN:\" line will be generated.")
(defun undercover-lcov--create-report ()
"Create LCOV test coverage report."
(when (and undercover--merge-report
(file-readable-p undercover--report-file-path))
(user-error "Merging of LCOV reports is not implemented. Please delete %s or invoke with (:merge-report nil)."
undercover--report-file-path))
(undercover--collect-files-coverage undercover--files)
(apply #'concat
;; Test name
(if undercover-lcov--test-name
(concat "TN:" undercover-lcov--test-name "\n")
"")
;; One section per file
(mapcar
(lambda (file)
(let ((statistics (gethash file undercover--files-coverage-statistics))
line-numbers)
;; Collect line numbers
(maphash (lambda (k _v)
(push k line-numbers))
statistics)
;; Emit coverage
(concat
;; File name
"SF:" file "\n"
;; Per-line coverage
(apply #'concat
(mapcar
(lambda (line)
(format "DA:%d,%d\n"
line
(gethash line statistics)))
(sort line-numbers #'<)))
"end_of_record\n")))
undercover--files)))
(defun undercover-lcov--report ()
"Create test coverage report in LCOV format."
(when undercover--send-report
(error "UNDERCOVER: Cannot upload LCOV reports.
Please disable the :send-report option (or specify a coverage
provider as the :report-format instead of 'lcov)."))
(let ((undercover--report-file-path (or undercover--report-file-path
"coverage/lcov.info")))
(make-directory (or (file-name-directory undercover--report-file-path) "") t)
(with-temp-buffer
(insert (undercover-lcov--create-report))
(write-region nil nil undercover--report-file-path))))
;; SimpleCov report:
(defconst undercover-simplecov--report-name "undercover.el"
"The name of the generated result in the SimpleCov result set report.")