1 #!/bin/sh
2 #
3 # Copyright (c) 2019, 2020 Stefan Sperling <stsp@openbsd.org>
4 #
5 # Permission to use, copy, modify, and distribute this software for any
6 # purpose with or without fee is hereby granted, provided that the above
7 # copyright notice and this permission notice appear in all copies.
8 #
9 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 
17 . ./common.sh
18 
19 function test_log_in_repo {
20 	local testroot=`test_init log_in_repo`
21 	local head_rev=`git_show_head $testroot/repo`
22 
23 	echo "commit $head_rev (master)" > $testroot/stdout.expected
24 
25 	for p in "" "." alpha epsilon epsilon/zeta; do
26 		(cd $testroot/repo && got log $p | \
27 			grep ^commit > $testroot/stdout)
28 		cmp -s $testroot/stdout.expected $testroot/stdout
29 		ret="$?"
30 		if [ "$ret" != "0" ]; then
31 			diff -u $testroot/stdout.expected $testroot/stdout
32 			test_done "$testroot" "$ret"
33 			return 1
34 		fi
35 	done
36 
37 	for p in "" "." zeta; do
38 		(cd $testroot/repo/epsilon && got log $p | \
39 			grep ^commit > $testroot/stdout)
40 		cmp -s $testroot/stdout.expected $testroot/stdout
41 		ret="$?"
42 		if [ "$ret" != "0" ]; then
43 			diff -u $testroot/stdout.expected $testroot/stdout
44 			test_done "$testroot" "$ret"
45 			return 1
46 		fi
47 	done
48 
49 	test_done "$testroot" "0"
50 }
51 
52 function test_log_in_bare_repo {
53 	local testroot=`test_init log_in_bare_repo`
54 	local head_rev=`git_show_head $testroot/repo`
55 
56 	echo "commit $head_rev (master)" > $testroot/stdout.expected
57 
58 	for p in "" "." alpha epsilon epsilon/zeta; do
59 		(cd $testroot/repo/.git && got log $p | \
60 			grep ^commit > $testroot/stdout)
61 		cmp -s $testroot/stdout.expected $testroot/stdout
62 		ret="$?"
63 		if [ "$ret" != "0" ]; then
64 			diff -u $testroot/stdout.expected $testroot/stdout
65 			test_done "$testroot" "$ret"
66 			return 1
67 		fi
68 	done
69 
70 	test_done "$testroot" "0"
71 }
72 
73 function test_log_in_worktree {
74 	local testroot=`test_init log_in_worktree 1`
75 
76 	make_test_tree $testroot/repo
77 	mkdir -p $testroot/repo/epsilon/d
78 	echo foo > $testroot/repo/epsilon/d/foo
79 	(cd $testroot/repo && git add .)
80 	git_commit $testroot/repo -m "adding the test tree"
81 	local head_commit=`git_show_head $testroot/repo`
82 
83 	got checkout $testroot/repo $testroot/wt > /dev/null
84 	ret="$?"
85 	if [ "$ret" != "0" ]; then
86 		test_done "$testroot" "$ret"
87 		return 1
88 	fi
89 
90 	echo "commit $head_commit (master)" > $testroot/stdout.expected
91 
92 	for p in "" "." alpha epsilon; do
93 		(cd $testroot/wt && got log $p | \
94 			grep ^commit > $testroot/stdout)
95 		cmp -s $testroot/stdout.expected $testroot/stdout
96 		ret="$?"
97 		if [ "$ret" != "0" ]; then
98 			diff -u $testroot/stdout.expected $testroot/stdout
99 			test_done "$testroot" "$ret"
100 			return 1
101 		fi
102 	done
103 
104 	for p in "" "." zeta; do
105 		(cd $testroot/wt/epsilon && got log $p | \
106 			grep ^commit > $testroot/stdout)
107 		cmp -s $testroot/stdout.expected $testroot/stdout
108 		ret="$?"
109 		if [ "$ret" != "0" ]; then
110 			diff -u $testroot/stdout.expected $testroot/stdout
111 			test_done "$testroot" "$ret"
112 			return 1
113 		fi
114 	done
115 
116 	for p in "" "." foo; do
117 		(cd $testroot/wt/epsilon && got log d/$p | \
118 			grep ^commit > $testroot/stdout)
119 		cmp -s $testroot/stdout.expected $testroot/stdout
120 		ret="$?"
121 		if [ "$ret" != "0" ]; then
122 			diff -u $testroot/stdout.expected $testroot/stdout
123 			test_done "$testroot" "$ret"
124 			return 1
125 		fi
126 	done
127 
128 	test_done "$testroot" "0"
129 }
130 
131 function test_log_in_worktree_with_path_prefix {
132 	local testroot=`test_init log_in_prefixed_worktree`
133 	local head_rev=`git_show_head $testroot/repo`
134 
135 	echo "modified zeta" > $testroot/repo/epsilon/zeta
136 	git_commit $testroot/repo -m "modified zeta"
137 	local zeta_rev=`git_show_head $testroot/repo`
138 
139 	echo "modified delta" > $testroot/repo/gamma/delta
140 	git_commit $testroot/repo -m "modified delta"
141 
142 	got checkout -p epsilon $testroot/repo $testroot/wt > /dev/null
143 	ret="$?"
144 	if [ "$ret" != "0" ]; then
145 		test_done "$testroot" "$ret"
146 		return 1
147 	fi
148 
149 	echo "commit $zeta_rev" > $testroot/stdout.expected
150 	echo "commit $head_rev" >> $testroot/stdout.expected
151 
152 	for p in "" "." zeta; do
153 		(cd $testroot/wt && got log $p | \
154 			grep ^commit > $testroot/stdout)
155 		cmp -s $testroot/stdout.expected $testroot/stdout
156 		ret="$?"
157 		if [ "$ret" != "0" ]; then
158 			diff -u $testroot/stdout.expected $testroot/stdout
159 			test_done "$testroot" "$ret"
160 			return 1
161 		fi
162 	done
163 
164 	test_done "$testroot" "0"
165 }
166 
167 function test_log_tag {
168 	local testroot=`test_init log_tag`
169 	local commit_id=`git_show_head $testroot/repo`
170 	local tag="1.0.0"
171 	local tag2="2.0.0"
172 
173 	got checkout $testroot/repo $testroot/wt > /dev/null
174 	ret="$?"
175 	if [ "$ret" != "0" ]; then
176 		test_done "$testroot" "$ret"
177 		return 1
178 	fi
179 
180 	(cd $testroot/repo && git tag -a -m "test" $tag)
181 
182 	echo "commit $commit_id (master, tags/$tag)" > $testroot/stdout.expected
183 	(cd $testroot/wt && got log -l1 -c $tag | grep ^commit \
184 		> $testroot/stdout)
185 	cmp -s $testroot/stdout.expected $testroot/stdout
186 	ret="$?"
187 	if [ "$ret" != "0" ]; then
188 		diff -u $testroot/stdout.expected $testroot/stdout
189 		test_done "$testroot" "$ret"
190 		return 1
191 	fi
192 
193 	# test a "lightweight" tag
194 	(cd $testroot/repo && git tag $tag2)
195 
196 	echo "commit $commit_id (master, tags/$tag, tags/$tag2)" \
197 		> $testroot/stdout.expected
198 	(cd $testroot/wt && got log -l1 -c $tag2 | grep ^commit \
199 		> $testroot/stdout)
200 	cmp -s $testroot/stdout.expected $testroot/stdout
201 	ret="$?"
202 	if [ "$ret" != "0" ]; then
203 		diff -u $testroot/stdout.expected $testroot/stdout
204 	fi
205 	test_done "$testroot" "$ret"
206 }
207 
208 function test_log_limit {
209 	local testroot=`test_init log_limit`
210 	local commit_id0=`git_show_head $testroot/repo`
211 
212 	got checkout $testroot/repo $testroot/wt > /dev/null
213 	ret="$?"
214 	if [ "$ret" != "0" ]; then
215 		test_done "$testroot" "$ret"
216 		return 1
217 	fi
218 
219 	echo "modified alpha" > $testroot/wt/alpha
220 	(cd $testroot/wt && got commit -m 'test log_limit' > /dev/null)
221 	local commit_id1=`git_show_head $testroot/repo`
222 
223 	(cd $testroot/wt && got rm beta >/dev/null)
224 	(cd $testroot/wt && got commit -m 'test log_limit' > /dev/null)
225 	local commit_id2=`git_show_head $testroot/repo`
226 
227 	echo "new file" > $testroot/wt/new
228 	(cd $testroot/wt && got add new >/dev/null)
229 	(cd $testroot/wt && got commit -m 'test log_limit' > /dev/null)
230 	local commit_id3=`git_show_head $testroot/repo`
231 
232 	# -l1 should print the first commit only
233 	echo "commit $commit_id3 (master)" > $testroot/stdout.expected
234 	(cd $testroot/wt && got log -l1 | grep ^commit > $testroot/stdout)
235 	cmp -s $testroot/stdout.expected $testroot/stdout
236 	ret="$?"
237 	if [ "$ret" != "0" ]; then
238 		diff -u $testroot/stdout.expected $testroot/stdout
239 		test_done "$testroot" "$ret"
240 		return 1
241 	fi
242 
243 	# env var can be used to set a log limit without -l option
244 	echo "commit $commit_id3 (master)" > $testroot/stdout.expected
245 	echo "commit $commit_id2" >> $testroot/stdout.expected
246 	(cd $testroot/wt && env GOT_LOG_DEFAULT_LIMIT=2 got log | \
247 		grep ^commit > $testroot/stdout)
248 	cmp -s $testroot/stdout.expected $testroot/stdout
249 	ret="$?"
250 	if [ "$ret" != "0" ]; then
251 		diff -u $testroot/stdout.expected $testroot/stdout
252 		test_done "$testroot" "$ret"
253 		return 1
254 	fi
255 
256 	# non-numeric env var is ignored
257 	(cd $testroot/wt && env GOT_LOG_DEFAULT_LIMIT=foobar got log | \
258 		grep ^commit > $testroot/stdout)
259 	echo "commit $commit_id3 (master)" > $testroot/stdout.expected
260 	echo "commit $commit_id2" >> $testroot/stdout.expected
261 	echo "commit $commit_id1" >> $testroot/stdout.expected
262 	echo "commit $commit_id0" >> $testroot/stdout.expected
263 	cmp -s $testroot/stdout.expected $testroot/stdout
264 	ret="$?"
265 	if [ "$ret" != "0" ]; then
266 		diff -u $testroot/stdout.expected $testroot/stdout
267 		test_done "$testroot" "$ret"
268 		return 1
269 	fi
270 
271 	# -l option takes precedence over env var
272 	echo "commit $commit_id3 (master)" > $testroot/stdout.expected
273 	echo "commit $commit_id2" >> $testroot/stdout.expected
274 	echo "commit $commit_id1" >> $testroot/stdout.expected
275 	echo "commit $commit_id0" >> $testroot/stdout.expected
276 	(cd $testroot/wt && env GOT_LOG_DEFAULT_LIMIT=1 got log -l0 | \
277 		grep ^commit > $testroot/stdout)
278 	cmp -s $testroot/stdout.expected $testroot/stdout
279 	ret="$?"
280 	if [ "$ret" != "0" ]; then
281 		diff -u $testroot/stdout.expected $testroot/stdout
282 	fi
283 	test_done "$testroot" "0"
284 }
285 
286 function test_log_patch_added_file {
287 	local testroot=`test_init log_patch_added_file`
288 	local commit_id0=`git_show_head $testroot/repo`
289 
290 	got checkout $testroot/repo $testroot/wt > /dev/null
291 	ret="$?"
292 	if [ "$ret" != "0" ]; then
293 		test_done "$testroot" "$ret"
294 		return 1
295 	fi
296 
297 	echo "new file" > $testroot/wt/new
298 	(cd $testroot/wt && got add new >/dev/null)
299 	(cd $testroot/wt && got commit -m 'test log_limit' > /dev/null)
300 	local commit_id1=`git_show_head $testroot/repo`
301 
302 	echo "commit $commit_id1 (master)" > $testroot/stdout.expected
303 	# This used to fail with 'got: no such entry found in tree'
304 	(cd $testroot/wt && got log -l1 -p new > $testroot/stdout.patch)
305 	ret="$?"
306 	if [ "$ret" != "0" ]; then
307 		echo "got log command failed unexpectedly" >&2
308 		test_done "$testroot" "$ret"
309 		return 1
310 	fi
311 	grep ^commit $testroot/stdout.patch > $testroot/stdout
312 	cmp -s $testroot/stdout.expected $testroot/stdout
313 	ret="$?"
314 	if [ "$ret" != "0" ]; then
315 		diff -u $testroot/stdout.expected $testroot/stdout
316 	fi
317 	test_done "$testroot" "$ret"
318 }
319 
320 function test_log_nonexistent_path {
321 	local testroot=`test_init log_nonexistent_path`
322 	local head_rev=`git_show_head $testroot/repo`
323 
324 	echo "commit $head_rev (master)" > $testroot/stdout.expected
325 
326 	(cd $testroot/repo && got log this/does/not/exist \
327 		> $testroot/stdout 2> $testroot/stderr)
328 	ret="$?"
329 	if [ "$ret" == "0" ]; then
330 		echo "log command succeeded unexpectedly" >&2
331 		test_done "$testroot" "1"
332 		return 1
333 	fi
334 
335 	echo -n > $testroot/stdout.expected
336 	cmp -s $testroot/stdout.expected $testroot/stdout
337 	ret="$?"
338 	if [ "$ret" != "0" ]; then
339 		diff -u $testroot/stdout.expected $testroot/stdout
340 		test_done "$testroot" "$ret"
341 		return 1
342 	fi
343 
344 	echo "got: this/does/not/exist: no such entry found in tree" \
345 		> $testroot/stderr.expected
346 	cmp -s $testroot/stderr.expected $testroot/stderr
347 	ret="$?"
348 	if [ "$ret" != "0" ]; then
349 		diff -u $testroot/stderr.expected $testroot/stderr
350 	fi
351 	test_done "$testroot" "$ret"
352 }
353 
354 function test_log_end_at_commit {
355 	local testroot=`test_init log_end_at_commit`
356 	local commit_id0=`git_show_head $testroot/repo`
357 
358 	got checkout $testroot/repo $testroot/wt > /dev/null
359 	ret="$?"
360 	if [ "$ret" != "0" ]; then
361 		test_done "$testroot" "$ret"
362 		return 1
363 	fi
364 
365 	echo "modified alpha" > $testroot/wt/alpha
366 	(cd $testroot/wt && got commit -m 'test log_limit' > /dev/null)
367 	local commit_id1=`git_show_head $testroot/repo`
368 
369 	(cd $testroot/wt && got rm beta >/dev/null)
370 	(cd $testroot/wt && got commit -m 'test log_limit' > /dev/null)
371 	local commit_id2=`git_show_head $testroot/repo`
372 
373 	echo "new file" > $testroot/wt/new
374 	(cd $testroot/wt && got add new >/dev/null)
375 	(cd $testroot/wt && got commit -m 'test log_limit' > /dev/null)
376 	local commit_id3=`git_show_head $testroot/repo`
377 
378 	# Print commit 3 only
379 	echo "commit $commit_id3 (master)" > $testroot/stdout.expected
380 	(cd $testroot/wt && got log -x $commit_id3 | grep ^commit \
381 		> $testroot/stdout)
382 	cmp -s $testroot/stdout.expected $testroot/stdout
383 	ret="$?"
384 	if [ "$ret" != "0" ]; then
385 		diff -u $testroot/stdout.expected $testroot/stdout
386 		test_done "$testroot" "$ret"
387 		return 1
388 	fi
389 
390 	# Print commit 3 up to commit 1 inclusive
391 	echo "commit $commit_id3 (master)" > $testroot/stdout.expected
392 	echo "commit $commit_id2" >> $testroot/stdout.expected
393 	echo "commit $commit_id1" >> $testroot/stdout.expected
394 	(cd $testroot/wt && got log -c $commit_id3 -x $commit_id1 | \
395 		grep ^commit > $testroot/stdout)
396 	cmp -s $testroot/stdout.expected $testroot/stdout
397 	ret="$?"
398 	if [ "$ret" != "0" ]; then
399 		diff -u $testroot/stdout.expected $testroot/stdout
400 		test_done "$testroot" "$ret"
401 		return 1
402 	fi
403 
404 	# Create commits on an unrelated branch
405 	(cd $testroot/wt && got br foo > /dev/null)
406 	echo bar >> $testroot/wt/alpha
407 	(cd $testroot/wt && got commit -m "change on branch foo" >/dev/null)
408 	local commit_id4=`git_show_branch_head $testroot/repo foo`
409 
410 	# Print commit 4 only (in work tree)
411 	echo "commit $commit_id4 (foo)" > $testroot/stdout.expected
412 	(cd $testroot/wt && got log -x foo | grep ^commit \
413 		> $testroot/stdout)
414 	cmp -s $testroot/stdout.expected $testroot/stdout
415 	ret="$?"
416 	if [ "$ret" != "0" ]; then
417 		diff -u $testroot/stdout.expected $testroot/stdout
418 		test_done "$testroot" "$ret"
419 		return 1
420 	fi
421 
422 	# Print commit 4 only (in repository)
423 	echo "commit $commit_id4 (foo)" > $testroot/stdout.expected
424 	(cd $testroot/repo && got log -c foo -x foo | grep ^commit \
425 		> $testroot/stdout)
426 	cmp -s $testroot/stdout.expected $testroot/stdout
427 	ret="$?"
428 	if [ "$ret" != "0" ]; then
429 		diff -u $testroot/stdout.expected $testroot/stdout
430 		test_done "$testroot" "$ret"
431 		return 1
432 	fi
433 
434 	# Repository's HEAD is on master branch so -x foo without an explicit
435 	# '-c foo' start commit has no effect there
436 	echo "commit $commit_id3 (master)" > $testroot/stdout.expected
437 	echo "commit $commit_id2" >> $testroot/stdout.expected
438 	echo "commit $commit_id1" >> $testroot/stdout.expected
439 	echo "commit $commit_id0" >> $testroot/stdout.expected
440 	(cd $testroot/repo && got log -x foo | grep ^commit \
441 		> $testroot/stdout)
442 	cmp -s $testroot/stdout.expected $testroot/stdout
443 	ret="$?"
444 	if [ "$ret" != "0" ]; then
445 		diff -u $testroot/stdout.expected $testroot/stdout
446 		test_done "$testroot" "$ret"
447 		return 1
448 	fi
449 
450 	# got will refuse -x with a non-existent commit
451 	(cd $testroot/wt && got log -x nonexistent \
452 		> $testroot/stdout 2> $testroot/stderr) 
453 	ret="$?"
454 	if [ "$ret" == "0" ]; then
455 		echo "log command succeeded unexpectedly" >&2
456 		test_done "$testroot" "1"
457 		return 1
458 	fi
459 	echo -n > $testroot/stdout.expected
460 	echo "got: nonexistent: bad object id string" \
461 		> $testroot/stderr.expected
462 	cmp -s $testroot/stderr.expected $testroot/stderr
463 	ret="$?"
464 	if [ "$ret" != "0" ]; then
465 		diff -u $testroot/stderr.expected $testroot/stderr
466 		test_done "$testroot" "$ret"
467 		return 1
468 	fi
469 	cmp -s $testroot/stdout.expected $testroot/stdout
470 	ret="$?"
471 	if [ "$ret" != "0" ]; then
472 		diff -u $testroot/stdout.expected $testroot/stdout
473 		test_done "$testroot" "$ret"
474 		return 1
475 	fi
476 
477 	# try the same with the hash of an empty string which is very
478 	# unlikely to match any object
479 	local empty_sha1=da39a3ee5e6b4b0d3255bfef95601890afd80709 
480 	(cd $testroot/wt && got log -x $empty_sha1 \
481 		> $testroot/stdout 2> $testroot/stderr) 
482 	ret="$?"
483 	if [ "$ret" == "0" ]; then
484 		echo "log command succeeded unexpectedly" >&2
485 		test_done "$testroot" "1"
486 		return 1
487 	fi
488 	echo -n > $testroot/stdout.expected
489 	echo "got: $empty_sha1: object not found" > $testroot/stderr.expected
490 	cmp -s $testroot/stderr.expected $testroot/stderr
491 	ret="$?"
492 	if [ "$ret" != "0" ]; then
493 		diff -u $testroot/stderr.expected $testroot/stderr
494 		test_done "$testroot" "$ret"
495 		return 1
496 	fi
497 	cmp -s $testroot/stdout.expected $testroot/stdout
498 	ret="$?"
499 	if [ "$ret" != "0" ]; then
500 		diff -u $testroot/stdout.expected $testroot/stdout
501 		test_done "$testroot" "$ret"
502 		return 1
503 	fi
504 
505 	test_done "$testroot" "0"
506 }
507 
508 function test_log_reverse_display {
509 	local testroot=`test_init log_reverse_display`
510 	local commit_id0=`git_show_head $testroot/repo`
511 
512 	got checkout $testroot/repo $testroot/wt > /dev/null
513 	ret="$?"
514 	if [ "$ret" != "0" ]; then
515 		test_done "$testroot" "$ret"
516 		return 1
517 	fi
518 
519 	echo "modified alpha" > $testroot/wt/alpha
520 	(cd $testroot/wt && got commit -m 'commit1' > /dev/null)
521 	local commit_id1=`git_show_head $testroot/repo`
522 
523 	(cd $testroot/wt && got rm beta >/dev/null)
524 	(cd $testroot/wt && got commit -m 'commit2' > /dev/null)
525 	local commit_id2=`git_show_head $testroot/repo`
526 
527 	echo "new file" > $testroot/wt/new
528 	(cd $testroot/wt && got add new >/dev/null)
529 	(cd $testroot/wt && got commit -m 'commit3' > /dev/null)
530 	local commit_id3=`git_show_head $testroot/repo`
531 
532 	# -R alone should display all commits in reverse
533 	echo "commit $commit_id0" > $testroot/stdout.expected
534 	echo "commit $commit_id1" >> $testroot/stdout.expected
535 	echo "commit $commit_id2" >> $testroot/stdout.expected
536 	echo "commit $commit_id3 (master)" >> $testroot/stdout.expected
537 	(cd $testroot/wt && got log -R | grep ^commit > $testroot/stdout)
538 	cmp -s $testroot/stdout.expected $testroot/stdout
539 	ret="$?"
540 	if [ "$ret" != "0" ]; then
541 		diff -u $testroot/stdout.expected $testroot/stdout
542 		test_done "$testroot" "$ret"
543 		return 1
544 	fi
545 
546 	# -R takes effect after the -l commit traversal limit
547 	echo "commit $commit_id2" > $testroot/stdout.expected
548 	echo "commit $commit_id3 (master)" >> $testroot/stdout.expected
549 	(cd $testroot/wt && got log -R -l2 | grep ^commit > $testroot/stdout)
550 	cmp -s $testroot/stdout.expected $testroot/stdout
551 	ret="$?"
552 	if [ "$ret" != "0" ]; then
553 		diff -u $testroot/stdout.expected $testroot/stdout
554 		test_done "$testroot" "$ret"
555 		return 1
556 	fi
557 
558 	# -R works with commit ranges specified via -c and -x
559 	echo "commit $commit_id1" > $testroot/stdout.expected
560 	echo "commit $commit_id2" >> $testroot/stdout.expected
561 	echo "commit $commit_id3 (master)" >> $testroot/stdout.expected
562 	(cd $testroot/wt && got log -R -c $commit_id3 -x $commit_id1 | \
563 		grep ^commit > $testroot/stdout)
564 	cmp -s $testroot/stdout.expected $testroot/stdout
565 	ret="$?"
566 	if [ "$ret" != "0" ]; then
567 		diff -u $testroot/stdout.expected $testroot/stdout
568 		test_done "$testroot" "$ret"
569 	fi
570 
571 	# commit matching with -s applies before -R
572 	echo "commit $commit_id1" > $testroot/stdout.expected
573 	echo "commit $commit_id2" >> $testroot/stdout.expected
574 	(cd $testroot/wt && got log -R -s 'commit[12]' | \
575 		grep ^commit > $testroot/stdout)
576 	cmp -s $testroot/stdout.expected $testroot/stdout
577 	ret="$?"
578 	if [ "$ret" != "0" ]; then
579 		diff -u $testroot/stdout.expected $testroot/stdout
580 		test_done "$testroot" "$ret"
581 		return 1
582 	fi
583 
584 	# -R works in combination with -P
585 	echo "" > $testroot/stdout.expected
586 	(cd $testroot/wt && got log -R -P | grep -E '^(commit| [MDmA])' \
587 		> $testroot/stdout)
588 	echo "commit $commit_id0" > $testroot/stdout.expected
589 	echo " A  alpha" >> $testroot/stdout.expected
590 	echo " A  beta" >> $testroot/stdout.expected
591 	echo " A  epsilon/zeta" >> $testroot/stdout.expected
592 	echo " A  gamma/delta" >> $testroot/stdout.expected
593 	echo "commit $commit_id1" >> $testroot/stdout.expected
594 	echo " M  alpha" >> $testroot/stdout.expected
595 	echo "commit $commit_id2" >> $testroot/stdout.expected
596 	echo " D  beta" >> $testroot/stdout.expected
597 	echo "commit $commit_id3 (master)" >> $testroot/stdout.expected
598 	echo " A  new" >> $testroot/stdout.expected
599 	cmp -s $testroot/stdout.expected $testroot/stdout
600 	ret="$?"
601 	if [ "$ret" != "0" ]; then
602 		diff -u $testroot/stdout.expected $testroot/stdout
603 	fi
604 	test_done "$testroot" "$ret"
605 }
606 
607 function test_log_in_worktree_different_repo {
608 	local testroot=`test_init log_in_worktree_different_repo 1`
609 
610 	make_test_tree $testroot/repo
611 	mkdir -p $testroot/repo/epsilon/d
612 	echo foo > $testroot/repo/epsilon/d/foo
613 	(cd $testroot/repo && git add .)
614 	git_commit $testroot/repo -m "adding the test tree"
615 	local head_commit=`git_show_head $testroot/repo`
616 
617 	got init $testroot/other-repo
618 	mkdir -p $testroot/tree
619 	make_test_tree $testroot/tree
620 	got import -mm -b foo -r $testroot/other-repo $testroot/tree >/dev/null
621 	got checkout -b foo $testroot/other-repo $testroot/wt > /dev/null
622 	ret="$?"
623 	if [ "$ret" != "0" ]; then
624 		test_done "$testroot" "$ret"
625 		return 1
626 	fi
627 
628 	echo "commit $head_commit (master)" > $testroot/stdout.expected
629 
630 	# 'got log' used to fail with "reference refs/heads/foo not found"
631 	# even though that reference belongs to an unrelated repository
632 	# found via a worktree via the current working directory
633 	for p in "" alpha epsilon; do
634 		(cd $testroot/wt && got log -r $testroot/repo $p | \
635 			grep ^commit > $testroot/stdout)
636 		cmp -s $testroot/stdout.expected $testroot/stdout
637 		ret="$?"
638 		if [ "$ret" != "0" ]; then
639 			diff -u $testroot/stdout.expected $testroot/stdout
640 			test_done "$testroot" "$ret"
641 			return 1
642 		fi
643 	done
644 
645 	for p in "" epsilon/zeta; do
646 		(cd $testroot/wt/epsilon && got log -r $testroot/repo $p | \
647 			grep ^commit > $testroot/stdout)
648 		cmp -s $testroot/stdout.expected $testroot/stdout
649 		ret="$?"
650 		if [ "$ret" != "0" ]; then
651 			diff -u $testroot/stdout.expected $testroot/stdout
652 			test_done "$testroot" "$ret"
653 			return 1
654 		fi
655 	done
656 
657 	for p in "" foo; do
658 		(cd $testroot/wt/epsilon && got log -r $testroot/repo epsilon/d/$p | \
659 			grep ^commit > $testroot/stdout)
660 		cmp -s $testroot/stdout.expected $testroot/stdout
661 		ret="$?"
662 		if [ "$ret" != "0" ]; then
663 			diff -u $testroot/stdout.expected $testroot/stdout
664 			test_done "$testroot" "$ret"
665 			return 1
666 		fi
667 	done
668 
669 	test_done "$testroot" "0"
670 }
671 
672 function test_log_changed_paths {
673 	local testroot=`test_init log_changed_paths`
674 	local commit_id0=`git_show_head $testroot/repo`
675 
676 	got checkout $testroot/repo $testroot/wt > /dev/null
677 	ret="$?"
678 	if [ "$ret" != "0" ]; then
679 		test_done "$testroot" "$ret"
680 		return 1
681 	fi
682 
683 	echo "modified alpha" > $testroot/wt/alpha
684 	(cd $testroot/wt && got commit -m 'test log_changed_paths' > /dev/null)
685 	local commit_id1=`git_show_head $testroot/repo`
686 
687 	(cd $testroot/wt && got rm beta >/dev/null)
688 	(cd $testroot/wt && chmod +x epsilon/zeta >/dev/null)
689 	(cd $testroot/wt && got commit -m 'test log_changed_paths' > /dev/null)
690 	local commit_id2=`git_show_head $testroot/repo`
691 
692 	echo "new file" > $testroot/wt/new
693 	(cd $testroot/wt && got add new >/dev/null)
694 	(cd $testroot/wt && got commit -m 'test log_changed_paths' > /dev/null)
695 	local commit_id3=`git_show_head $testroot/repo`
696 
697 	(cd $testroot/wt && got log -P | grep '^ [MDmA]' > $testroot/stdout)
698 
699 	echo " A  new" > $testroot/stdout.expected
700 	echo " D  beta" >> $testroot/stdout.expected
701 	echo " m  epsilon/zeta" >> $testroot/stdout.expected
702 	echo " M  alpha" >> $testroot/stdout.expected
703 	echo " A  alpha" >> $testroot/stdout.expected
704 	echo " A  beta" >> $testroot/stdout.expected
705 	echo " A  epsilon/zeta" >> $testroot/stdout.expected
706 	echo " A  gamma/delta" >> $testroot/stdout.expected
707 
708 	cmp -s $testroot/stdout.expected $testroot/stdout
709 	ret="$?"
710 	if [ "$ret" != "0" ]; then
711 		diff -u $testroot/stdout.expected $testroot/stdout
712 	fi
713 	test_done "$testroot" "$ret"
714 }
715 
716 function test_log_submodule {
717 	local testroot=`test_init log_submodule`
718 
719 	make_single_file_repo $testroot/repo2 foo
720 
721 	(cd $testroot/repo && git submodule -q add ../repo2)
722 	(cd $testroot/repo && git commit -q -m 'adding submodule')
723 	local head_commit=`git_show_head $testroot/repo`
724 
725 	echo "commit $head_commit (master)" > $testroot/stdout.expected
726 
727 	got log -r $testroot/repo -l1 repo2 | grep ^commit > $testroot/stdout
728 	cmp -s $testroot/stdout.expected $testroot/stdout
729 	ret="$?"
730 	if [ "$ret" != "0" ]; then
731 		diff -u $testroot/stdout.expected $testroot/stdout
732 		test_done "$testroot" "$ret"
733 		return 1
734 	fi
735 
736 	echo " A  .gitmodules" > $testroot/stdout.expected
737 
738 	got log -r $testroot/repo -l1 -P repo2 | grep '^ [MDmA]' \
739 		> $testroot/stdout
740 	cmp -s $testroot/stdout.expected $testroot/stdout
741 	ret="$?"
742 	if [ "$ret" != "0" ]; then
743 		diff -u $testroot/stdout.expected $testroot/stdout
744 		test_done "$testroot" "$ret"
745 		return 1
746 	fi
747 
748 	got log -p -r $testroot/repo -l1 repo2 \
749 		> $testroot/stdout 2> $testroot/stderr
750 	ret="$?"
751 	if [ "$ret" == "0" ]; then
752 		echo "log command succeeded unexpectedly" >&2
753 		test_done "$testroot" "1"
754 		return 1
755 	fi
756 	local submodule_id=$(got tree -r $testroot/repo -i | \
757 		grep 'repo2\$$' | cut -d ' ' -f1)
758 	echo "got: object $submodule_id not found" > $testroot/stderr.expected
759 
760 	cmp -s $testroot/stderr.expected $testroot/stderr
761 	ret="$?"
762 	if [ "$ret" != "0" ]; then
763 		diff -u $testroot/stderr.expected $testroot/stderr
764 		test_done "$testroot" "$ret"
765 		return 1
766 	fi
767 
768 	echo "modified foo" > $testroot/repo2/foo
769 	(cd $testroot/repo2 && git commit -q -a -m 'modified a submodule')
770 
771 	# Update the repo/repo2 submodule link
772 	(cd $testroot/repo && git -C repo2 pull -q)
773 	(cd $testroot/repo && git add repo2)
774 	git_commit $testroot/repo -m "changed submodule link"
775 
776 	# log -P does not show the changed submodule path
777 	got log -P -r $testroot/repo -l1 repo2 > $testroot/stdout.full
778 	ret="$?"
779 	if [ "$ret" != "0" ]; then
780 		echo "log command failed unexpectedly" >&2
781 		test_done "$testroot" "1"
782 		return 1
783 	fi
784 	grep '^ [MDmA]' $testroot/stdout.full > $testroot/stdout
785 
786 	echo -n > $testroot/stdout.expected
787 	cmp -s $testroot/stdout.expected $testroot/stdout
788 	ret="$?"
789 	if [ "$ret" != "0" ]; then
790 		diff -u $testroot/stdout.expected $testroot/stdout
791 	fi
792 	test_done "$testroot" "$ret"
793 }
794 
795 test_parseargs "$@"
796 run_test test_log_in_repo
797 run_test test_log_in_bare_repo
798 run_test test_log_in_worktree
799 run_test test_log_in_worktree_with_path_prefix
800 run_test test_log_tag
801 run_test test_log_limit
802 run_test test_log_patch_added_file
803 run_test test_log_nonexistent_path
804 run_test test_log_end_at_commit
805 run_test test_log_reverse_display
806 run_test test_log_in_worktree_different_repo
807 run_test test_log_changed_paths
808 run_test test_log_submodule