Merge branch 'ls/git-gui-no-double-utf8-author-name'
[git/git.git] / t / lib-submodule-update.sh
1 # Create a submodule layout used for all tests below.
2 #
3 # The following use cases are covered:
4 # - New submodule (no_submodule => add_sub1)
5 # - Removed submodule (add_sub1 => remove_sub1)
6 # - Updated submodule (add_sub1 => modify_sub1)
7 # - Updated submodule recursively (add_nested_sub => modify_sub1_recursively)
8 # - Submodule updated to invalid commit (add_sub1 => invalid_sub1)
9 # - Submodule updated from invalid commit (invalid_sub1 => valid_sub1)
10 # - Submodule replaced by tracked files in directory (add_sub1 =>
11 # replace_sub1_with_directory)
12 # - Directory containing tracked files replaced by submodule
13 # (replace_sub1_with_directory => replace_directory_with_sub1)
14 # - Submodule replaced by tracked file with the same name (add_sub1 =>
15 # replace_sub1_with_file)
16 # - Tracked file replaced by submodule (replace_sub1_with_file =>
17 # replace_file_with_sub1)
18 #
19 # ----O
20 # / ^
21 # / remove_sub1
22 # /
23 # add_sub1 /-------O---------O--------O modify_sub1_recursively
24 # | / ^ add_nested_sub
25 # | / modify_sub1
26 # v/
27 # O------O-----------O---------O
28 # ^ \ ^ replace_directory_with_sub1
29 # | \ replace_sub1_with_directory
30 # no_submodule \
31 # --------O---------O
32 # \ ^ replace_file_with_sub1
33 # \ replace_sub1_with_file
34 # \
35 # ----O---------O
36 # ^ valid_sub1
37 # invalid_sub1
38 #
39
40 create_lib_submodule_repo () {
41 git init submodule_update_sub1 &&
42 (
43 cd submodule_update_sub1 &&
44 echo "expect" >>.gitignore &&
45 echo "actual" >>.gitignore &&
46 echo "x" >file1 &&
47 echo "y" >file2 &&
48 git add .gitignore file1 file2 &&
49 git commit -m "Base inside first submodule" &&
50 git branch "no_submodule"
51 ) &&
52 git init submodule_update_sub2 &&
53 (
54 cd submodule_update_sub2
55 echo "expect" >>.gitignore &&
56 echo "actual" >>.gitignore &&
57 echo "x" >file1 &&
58 echo "y" >file2 &&
59 git add .gitignore file1 file2 &&
60 git commit -m "nested submodule base" &&
61 git branch "no_submodule"
62 ) &&
63 git init submodule_update_repo &&
64 (
65 cd submodule_update_repo &&
66 echo "expect" >>.gitignore &&
67 echo "actual" >>.gitignore &&
68 echo "x" >file1 &&
69 echo "y" >file2 &&
70 git add .gitignore file1 file2 &&
71 git commit -m "Base" &&
72 git branch "no_submodule" &&
73
74 git checkout -b "add_sub1" &&
75 git submodule add ../submodule_update_sub1 sub1 &&
76 git submodule add ../submodule_update_sub1 uninitialized_sub &&
77 git config -f .gitmodules submodule.sub1.ignore all &&
78 git config submodule.sub1.ignore all &&
79 git add .gitmodules &&
80 git commit -m "Add sub1" &&
81
82 git checkout -b remove_sub1 add_sub1 &&
83 git revert HEAD &&
84
85 git checkout -b modify_sub1 add_sub1 &&
86 git submodule update &&
87 (
88 cd sub1 &&
89 git fetch &&
90 git checkout -b "modifications" &&
91 echo "z" >file2 &&
92 echo "x" >file3 &&
93 git add file2 file3 &&
94 git commit -m "modified file2 and added file3" &&
95 git push origin modifications
96 ) &&
97 git add sub1 &&
98 git commit -m "Modify sub1" &&
99
100 git checkout -b add_nested_sub modify_sub1 &&
101 git -C sub1 checkout -b "add_nested_sub" &&
102 git -C sub1 submodule add --branch no_submodule ../submodule_update_sub2 sub2 &&
103 git -C sub1 commit -a -m "add a nested submodule" &&
104 git add sub1 &&
105 git commit -a -m "update submodule, that updates a nested submodule" &&
106 git checkout -b modify_sub1_recursively &&
107 git -C sub1 checkout -b modify_sub1_recursively &&
108 git -C sub1/sub2 checkout -b modify_sub1_recursively &&
109 echo change >sub1/sub2/file3 &&
110 git -C sub1/sub2 add file3 &&
111 git -C sub1/sub2 commit -m "make a change in nested sub" &&
112 git -C sub1 add sub2 &&
113 git -C sub1 commit -m "update nested sub" &&
114 git add sub1 &&
115 git commit -m "update sub1, that updates nested sub" &&
116 git -C sub1 push origin modify_sub1_recursively &&
117 git -C sub1/sub2 push origin modify_sub1_recursively &&
118 git -C sub1 submodule deinit -f --all &&
119
120 git checkout -b replace_sub1_with_directory add_sub1 &&
121 git submodule update &&
122 git -C sub1 checkout modifications &&
123 git rm --cached sub1 &&
124 rm sub1/.git* &&
125 git config -f .gitmodules --remove-section "submodule.sub1" &&
126 git add .gitmodules sub1/* &&
127 git commit -m "Replace sub1 with directory" &&
128
129 git checkout -b replace_directory_with_sub1 &&
130 git revert HEAD &&
131
132 git checkout -b replace_sub1_with_file add_sub1 &&
133 git rm sub1 &&
134 echo "content" >sub1 &&
135 git add sub1 &&
136 git commit -m "Replace sub1 with file" &&
137
138 git checkout -b replace_file_with_sub1 &&
139 git revert HEAD &&
140
141 git checkout -b invalid_sub1 add_sub1 &&
142 git update-index --cacheinfo 160000 0123456789012345678901234567890123456789 sub1 &&
143 git commit -m "Invalid sub1 commit" &&
144 git checkout -b valid_sub1 &&
145 git revert HEAD &&
146
147 git checkout master
148 )
149 }
150
151 # Helper function to replace gitfile with .git directory
152 replace_gitfile_with_git_dir () {
153 (
154 cd "$1" &&
155 git_dir="$(git rev-parse --git-dir)" &&
156 rm -f .git &&
157 cp -R "$git_dir" .git &&
158 GIT_WORK_TREE=. git config --unset core.worktree
159 )
160 }
161
162 # Test that the .git directory in the submodule is unchanged (except for the
163 # core.worktree setting, which appears only in $GIT_DIR/modules/$1/config).
164 # Call this function before test_submodule_content as the latter might
165 # write the index file leading to false positive index differences.
166 #
167 # Note that this only supports submodules at the root level of the
168 # superproject, with the default name, i.e. same as its path.
169 test_git_directory_is_unchanged () {
170 (
171 cd ".git/modules/$1" &&
172 # does core.worktree point at the right place?
173 test "$(git config core.worktree)" = "../../../$1" &&
174 # remove it temporarily before comparing, as
175 # "$1/.git/config" lacks it...
176 git config --unset core.worktree
177 ) &&
178 diff -r ".git/modules/$1" "$1/.git" &&
179 (
180 # ... and then restore.
181 cd ".git/modules/$1" &&
182 git config core.worktree "../../../$1"
183 )
184 }
185
186 test_git_directory_exists() {
187 test -e ".git/modules/$1" &&
188 if test -f sub1/.git
189 then
190 # does core.worktree point at the right place?
191 test "$(git -C .git/modules/$1 config core.worktree)" = "../../../$1"
192 fi
193 }
194
195 # Helper function to be executed at the start of every test below, it sets up
196 # the submodule repo if it doesn't exist and configures the most problematic
197 # settings for diff.ignoreSubmodules.
198 prolog () {
199 (test -d submodule_update_repo || create_lib_submodule_repo) &&
200 test_config_global diff.ignoreSubmodules all &&
201 test_config diff.ignoreSubmodules all
202 }
203
204 # Helper function to bring work tree back into the state given by the
205 # commit. This includes trying to populate sub1 accordingly if it exists and
206 # should be updated to an existing commit.
207 reset_work_tree_to () {
208 rm -rf submodule_update &&
209 git clone submodule_update_repo submodule_update &&
210 (
211 cd submodule_update &&
212 rm -rf sub1 &&
213 git checkout -f "$1" &&
214 git status -u -s >actual &&
215 test_must_be_empty actual &&
216 hash=$(git rev-parse --revs-only HEAD:sub1) &&
217 if test -n "$hash" &&
218 test $(cd "../submodule_update_sub1" && git rev-parse --verify "$hash^{commit}")
219 then
220 git submodule update --init --recursive "sub1"
221 fi
222 )
223 }
224
225 reset_work_tree_to_interested () {
226 reset_work_tree_to $1 &&
227 # make the submodule git dirs available
228 if ! test -d submodule_update/.git/modules/sub1
229 then
230 mkdir -p submodule_update/.git/modules &&
231 cp -r submodule_update_repo/.git/modules/sub1 submodule_update/.git/modules/sub1
232 GIT_WORK_TREE=. git -C submodule_update/.git/modules/sub1 config --unset core.worktree
233 fi &&
234 if ! test -d submodule_update/.git/modules/sub1/modules/sub2
235 then
236 mkdir -p submodule_update/.git/modules/sub1/modules &&
237 cp -r submodule_update_repo/.git/modules/sub1/modules/sub2 submodule_update/.git/modules/sub1/modules/sub2
238 GIT_WORK_TREE=. git -C submodule_update/.git/modules/sub1/modules/sub2 config --unset core.worktree
239 fi &&
240 # indicate we are interested in the submodule:
241 git -C submodule_update config submodule.sub1.url "bogus" &&
242 # sub1 might not be checked out, so use the git dir
243 git -C submodule_update/.git/modules/sub1 config submodule.sub2.url "bogus"
244 }
245
246 # Test that the superproject contains the content according to commit "$1"
247 # (the work tree must match the index for everything but submodules but the
248 # index must exactly match the given commit including any submodule SHA-1s).
249 test_superproject_content () {
250 git diff-index --cached "$1" >actual &&
251 test_must_be_empty actual &&
252 git diff-files --ignore-submodules >actual &&
253 test_must_be_empty actual
254 }
255
256 # Test that the given submodule at path "$1" contains the content according
257 # to the submodule commit recorded in the superproject's commit "$2"
258 test_submodule_content () {
259 if test x"$1" = "x-C"
260 then
261 cd "$2"
262 shift; shift;
263 fi
264 if test $# != 2
265 then
266 echo "test_submodule_content needs two arguments"
267 return 1
268 fi &&
269 submodule="$1" &&
270 commit="$2" &&
271 test -d "$submodule"/ &&
272 if ! test -f "$submodule"/.git && ! test -d "$submodule"/.git
273 then
274 echo "Submodule $submodule is not populated"
275 return 1
276 fi &&
277 sha1=$(git rev-parse --verify "$commit:$submodule") &&
278 if test -z "$sha1"
279 then
280 echo "Couldn't retrieve SHA-1 of $submodule for $commit"
281 return 1
282 fi &&
283 (
284 cd "$submodule" &&
285 git status -u -s >actual &&
286 test_must_be_empty actual &&
287 git diff "$sha1" >actual &&
288 test_must_be_empty actual
289 )
290 }
291
292 # Test that the following transitions are correctly handled:
293 # - Updated submodule
294 # - New submodule
295 # - Removed submodule
296 # - Directory containing tracked files replaced by submodule
297 # - Submodule replaced by tracked files in directory
298 # - Submodule replaced by tracked file with the same name
299 # - tracked file replaced by submodule
300 #
301 # The default is that submodule contents aren't changed until "git submodule
302 # update" is run. And even then that command doesn't delete the work tree of
303 # a removed submodule.
304 #
305 # Removing a submodule containing a .git directory must fail even when forced
306 # to protect the history!
307 #
308
309 # Internal function; use test_submodule_switch() or
310 # test_submodule_forced_switch() instead.
311 test_submodule_switch_common() {
312 command="$1"
313 ######################### Appearing submodule #########################
314 # Switching to a commit letting a submodule appear creates empty dir ...
315 if test "$KNOWN_FAILURE_STASH_DOES_IGNORE_SUBMODULE_CHANGES" = 1
316 then
317 # Restoring stash fails to restore submodule index entry
318 RESULT="failure"
319 else
320 RESULT="success"
321 fi
322 test_expect_$RESULT "$command: added submodule creates empty directory" '
323 prolog &&
324 reset_work_tree_to no_submodule &&
325 (
326 cd submodule_update &&
327 git branch -t add_sub1 origin/add_sub1 &&
328 $command add_sub1 &&
329 test_superproject_content origin/add_sub1 &&
330 test_dir_is_empty sub1 &&
331 git submodule update --init --recursive &&
332 test_submodule_content sub1 origin/add_sub1
333 )
334 '
335 # ... and doesn't care if it already exists.
336 test_expect_$RESULT "$command: added submodule leaves existing empty directory alone" '
337 prolog &&
338 reset_work_tree_to no_submodule &&
339 (
340 cd submodule_update &&
341 mkdir sub1 &&
342 git branch -t add_sub1 origin/add_sub1 &&
343 $command add_sub1 &&
344 test_superproject_content origin/add_sub1 &&
345 test_dir_is_empty sub1 &&
346 git submodule update --init --recursive &&
347 test_submodule_content sub1 origin/add_sub1
348 )
349 '
350 # Replacing a tracked file with a submodule produces an empty
351 # directory ...
352 test_expect_$RESULT "$command: replace tracked file with submodule creates empty directory" '
353 prolog &&
354 reset_work_tree_to replace_sub1_with_file &&
355 (
356 cd submodule_update &&
357 git branch -t replace_file_with_sub1 origin/replace_file_with_sub1 &&
358 $command replace_file_with_sub1 &&
359 test_superproject_content origin/replace_file_with_sub1 &&
360 test_dir_is_empty sub1 &&
361 git submodule update --init --recursive &&
362 test_submodule_content sub1 origin/replace_file_with_sub1
363 )
364 '
365 # ... as does removing a directory with tracked files with a
366 # submodule.
367 if test "$KNOWN_FAILURE_NOFF_MERGE_DOESNT_CREATE_EMPTY_SUBMODULE_DIR" = 1
368 then
369 # Non fast-forward merges fail with "Directory sub1 doesn't
370 # exist. sub1" because the empty submodule directory is not
371 # created
372 RESULT="failure"
373 else
374 RESULT="success"
375 fi
376 test_expect_$RESULT "$command: replace directory with submodule" '
377 prolog &&
378 reset_work_tree_to replace_sub1_with_directory &&
379 (
380 cd submodule_update &&
381 git branch -t replace_directory_with_sub1 origin/replace_directory_with_sub1 &&
382 $command replace_directory_with_sub1 &&
383 test_superproject_content origin/replace_directory_with_sub1 &&
384 test_dir_is_empty sub1 &&
385 git submodule update --init --recursive &&
386 test_submodule_content sub1 origin/replace_directory_with_sub1
387 )
388 '
389
390 ######################## Disappearing submodule #######################
391 # Removing a submodule doesn't remove its work tree ...
392 if test "$KNOWN_FAILURE_STASH_DOES_IGNORE_SUBMODULE_CHANGES" = 1
393 then
394 RESULT="failure"
395 else
396 RESULT="success"
397 fi
398 test_expect_$RESULT "$command: removed submodule leaves submodule directory and its contents in place" '
399 prolog &&
400 reset_work_tree_to add_sub1 &&
401 (
402 cd submodule_update &&
403 git branch -t remove_sub1 origin/remove_sub1 &&
404 $command remove_sub1 &&
405 test_superproject_content origin/remove_sub1 &&
406 test_submodule_content sub1 origin/add_sub1
407 )
408 '
409 # ... especially when it contains a .git directory.
410 test_expect_$RESULT "$command: removed submodule leaves submodule containing a .git directory alone" '
411 prolog &&
412 reset_work_tree_to add_sub1 &&
413 (
414 cd submodule_update &&
415 git branch -t remove_sub1 origin/remove_sub1 &&
416 replace_gitfile_with_git_dir sub1 &&
417 $command remove_sub1 &&
418 test_superproject_content origin/remove_sub1 &&
419 test_git_directory_is_unchanged sub1 &&
420 test_submodule_content sub1 origin/add_sub1
421 )
422 '
423 # Replacing a submodule with files in a directory must fail as the
424 # submodule work tree isn't removed ...
425 if test "$KNOWN_FAILURE_NOFF_MERGE_ATTEMPTS_TO_MERGE_REMOVED_SUBMODULE_FILES" = 1
426 then
427 # Non fast-forward merges attempt to merge the former
428 # submodule files with the newly checked out ones in the
429 # directory of the same name while it shouldn't.
430 RESULT="failure"
431 elif test "$KNOWN_FAILURE_FORCED_SWITCH_TESTS" = 1
432 then
433 # All existing tests that use test_submodule_forced_switch()
434 # require this.
435 RESULT="failure"
436 else
437 RESULT="success"
438 fi
439 test_expect_$RESULT "$command: replace submodule with a directory must fail" '
440 prolog &&
441 reset_work_tree_to add_sub1 &&
442 (
443 cd submodule_update &&
444 git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
445 test_must_fail $command replace_sub1_with_directory &&
446 test_superproject_content origin/add_sub1 &&
447 test_submodule_content sub1 origin/add_sub1
448 )
449 '
450 # ... especially when it contains a .git directory.
451 test_expect_$RESULT "$command: replace submodule containing a .git directory with a directory must fail" '
452 prolog &&
453 reset_work_tree_to add_sub1 &&
454 (
455 cd submodule_update &&
456 git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
457 replace_gitfile_with_git_dir sub1 &&
458 test_must_fail $command replace_sub1_with_directory &&
459 test_superproject_content origin/add_sub1 &&
460 test_git_directory_is_unchanged sub1 &&
461 test_submodule_content sub1 origin/add_sub1
462 )
463 '
464 # Replacing it with a file must fail as it could throw away any local
465 # work tree changes ...
466 test_expect_failure "$command: replace submodule with a file must fail" '
467 prolog &&
468 reset_work_tree_to add_sub1 &&
469 (
470 cd submodule_update &&
471 git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
472 test_must_fail $command replace_sub1_with_file &&
473 test_superproject_content origin/add_sub1 &&
474 test_submodule_content sub1 origin/add_sub1
475 )
476 '
477 # ... or even destroy unpushed parts of submodule history if that
478 # still uses a .git directory.
479 test_expect_failure "$command: replace submodule containing a .git directory with a file must fail" '
480 prolog &&
481 reset_work_tree_to add_sub1 &&
482 (
483 cd submodule_update &&
484 git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
485 replace_gitfile_with_git_dir sub1 &&
486 test_must_fail $command replace_sub1_with_file &&
487 test_superproject_content origin/add_sub1 &&
488 test_git_directory_is_unchanged sub1 &&
489 test_submodule_content sub1 origin/add_sub1
490 )
491 '
492
493 ########################## Modified submodule #########################
494 # Updating a submodule sha1 doesn't update the submodule's work tree
495 if test "$KNOWN_FAILURE_CHERRY_PICK_SEES_EMPTY_COMMIT" = 1
496 then
497 # When cherry picking a SHA-1 update for an ignored submodule
498 # the commit incorrectly fails with "The previous cherry-pick
499 # is now empty, possibly due to conflict resolution."
500 RESULT="failure"
501 else
502 RESULT="success"
503 fi
504 test_expect_$RESULT "$command: modified submodule does not update submodule work tree" '
505 prolog &&
506 reset_work_tree_to add_sub1 &&
507 (
508 cd submodule_update &&
509 git branch -t modify_sub1 origin/modify_sub1 &&
510 $command modify_sub1 &&
511 test_superproject_content origin/modify_sub1 &&
512 test_submodule_content sub1 origin/add_sub1 &&
513 git submodule update &&
514 test_submodule_content sub1 origin/modify_sub1
515 )
516 '
517 # Updating a submodule to an invalid sha1 doesn't update the
518 # submodule's work tree, subsequent update will fail
519 test_expect_$RESULT "$command: modified submodule does not update submodule work tree to invalid commit" '
520 prolog &&
521 reset_work_tree_to add_sub1 &&
522 (
523 cd submodule_update &&
524 git branch -t invalid_sub1 origin/invalid_sub1 &&
525 $command invalid_sub1 &&
526 test_superproject_content origin/invalid_sub1 &&
527 test_submodule_content sub1 origin/add_sub1 &&
528 test_must_fail git submodule update &&
529 test_submodule_content sub1 origin/add_sub1
530 )
531 '
532 # Updating a submodule from an invalid sha1 doesn't update the
533 # submodule's work tree, subsequent update will succeed
534 test_expect_$RESULT "$command: modified submodule does not update submodule work tree from invalid commit" '
535 prolog &&
536 reset_work_tree_to invalid_sub1 &&
537 (
538 cd submodule_update &&
539 git branch -t valid_sub1 origin/valid_sub1 &&
540 $command valid_sub1 &&
541 test_superproject_content origin/valid_sub1 &&
542 test_dir_is_empty sub1 &&
543 git submodule update --init --recursive &&
544 test_submodule_content sub1 origin/valid_sub1
545 )
546 '
547 }
548
549 # Declares and invokes several tests that, in various situations, checks that
550 # the provided transition function:
551 # - succeeds in updating the worktree and index of a superproject to a target
552 # commit, or fails atomically (depending on the test situation)
553 # - if succeeds, the contents of submodule directories are unchanged
554 # - if succeeds, once "git submodule update" is invoked, the contents of
555 # submodule directories are updated
556 #
557 # If the command under test is known to not work with submodules in certain
558 # conditions, set the appropriate KNOWN_FAILURE_* variable used in the tests
559 # below to 1.
560 #
561 # Use as follows:
562 #
563 # my_func () {
564 # target=$1
565 # # Do something here that updates the worktree and index to match target,
566 # # but not any submodule directories.
567 # }
568 # test_submodule_switch "my_func"
569 test_submodule_switch () {
570 command="$1"
571 test_submodule_switch_common "$command"
572
573 # An empty directory does not prevent the creation of a submodule of
574 # the same name, but a file does.
575 test_expect_success "$command: added submodule doesn't remove untracked unignored file with same name" '
576 prolog &&
577 reset_work_tree_to no_submodule &&
578 (
579 cd submodule_update &&
580 git branch -t add_sub1 origin/add_sub1 &&
581 >sub1 &&
582 test_must_fail $command add_sub1 &&
583 test_superproject_content origin/no_submodule &&
584 test_must_be_empty sub1
585 )
586 '
587 }
588
589 # Same as test_submodule_switch(), except that throwing away local changes in
590 # the superproject is allowed.
591 test_submodule_forced_switch () {
592 command="$1"
593 KNOWN_FAILURE_FORCED_SWITCH_TESTS=1
594 test_submodule_switch_common "$command"
595
596 # When forced, a file in the superproject does not prevent creating a
597 # submodule of the same name.
598 test_expect_success "$command: added submodule does remove untracked unignored file with same name when forced" '
599 prolog &&
600 reset_work_tree_to no_submodule &&
601 (
602 cd submodule_update &&
603 git branch -t add_sub1 origin/add_sub1 &&
604 >sub1 &&
605 $command add_sub1 &&
606 test_superproject_content origin/add_sub1 &&
607 test_dir_is_empty sub1
608 )
609 '
610 }
611
612 # Test that submodule contents are correctly updated when switching
613 # between commits that change a submodule.
614 # Test that the following transitions are correctly handled:
615 # (These tests are also above in the case where we expect no change
616 # in the submodule)
617 # - Updated submodule
618 # - New submodule
619 # - Removed submodule
620 # - Directory containing tracked files replaced by submodule
621 # - Submodule replaced by tracked files in directory
622 # - Submodule replaced by tracked file with the same name
623 # - tracked file replaced by submodule
624 #
625 # New test cases
626 # - Removing a submodule with a git directory absorbs the submodules
627 # git directory first into the superproject.
628
629 # Internal function; use test_submodule_switch_recursing_with_args() or
630 # test_submodule_forced_switch_recursing_with_args() instead.
631 test_submodule_recursing_with_args_common() {
632 command="$1"
633
634 ######################### Appearing submodule #########################
635 # Switching to a commit letting a submodule appear checks it out ...
636 test_expect_success "$command: added submodule is checked out" '
637 prolog &&
638 reset_work_tree_to_interested no_submodule &&
639 (
640 cd submodule_update &&
641 git branch -t add_sub1 origin/add_sub1 &&
642 $command add_sub1 &&
643 test_superproject_content origin/add_sub1 &&
644 test_submodule_content sub1 origin/add_sub1
645 )
646 '
647 # ... ignoring an empty existing directory.
648 test_expect_success "$command: added submodule is checked out in empty dir" '
649 prolog &&
650 reset_work_tree_to_interested no_submodule &&
651 (
652 cd submodule_update &&
653 mkdir sub1 &&
654 git branch -t add_sub1 origin/add_sub1 &&
655 $command add_sub1 &&
656 test_superproject_content origin/add_sub1 &&
657 test_submodule_content sub1 origin/add_sub1
658 )
659 '
660 test_expect_success "$command: submodule branch is not changed, detach HEAD instead" '
661 prolog &&
662 reset_work_tree_to_interested add_sub1 &&
663 (
664 cd submodule_update &&
665 git -C sub1 checkout -b keep_branch &&
666 git -C sub1 rev-parse HEAD >expect &&
667 git branch -t check-keep origin/modify_sub1 &&
668 $command check-keep &&
669 test_superproject_content origin/modify_sub1 &&
670 test_submodule_content sub1 origin/modify_sub1 &&
671 git -C sub1 rev-parse keep_branch >actual &&
672 test_cmp expect actual &&
673 test_must_fail git -C sub1 symbolic-ref HEAD
674 )
675 '
676
677 # Replacing a tracked file with a submodule produces a checked out submodule
678 test_expect_success "$command: replace tracked file with submodule checks out submodule" '
679 prolog &&
680 reset_work_tree_to_interested replace_sub1_with_file &&
681 (
682 cd submodule_update &&
683 git branch -t replace_file_with_sub1 origin/replace_file_with_sub1 &&
684 $command replace_file_with_sub1 &&
685 test_superproject_content origin/replace_file_with_sub1 &&
686 test_submodule_content sub1 origin/replace_file_with_sub1
687 )
688 '
689 # ... as does removing a directory with tracked files with a submodule.
690 test_expect_success "$command: replace directory with submodule" '
691 prolog &&
692 reset_work_tree_to_interested replace_sub1_with_directory &&
693 (
694 cd submodule_update &&
695 git branch -t replace_directory_with_sub1 origin/replace_directory_with_sub1 &&
696 $command replace_directory_with_sub1 &&
697 test_superproject_content origin/replace_directory_with_sub1 &&
698 test_submodule_content sub1 origin/replace_directory_with_sub1
699 )
700 '
701
702 ######################## Disappearing submodule #######################
703 # Removing a submodule removes its work tree ...
704 test_expect_success "$command: removed submodule removes submodules working tree" '
705 prolog &&
706 reset_work_tree_to_interested add_sub1 &&
707 (
708 cd submodule_update &&
709 git branch -t remove_sub1 origin/remove_sub1 &&
710 $command remove_sub1 &&
711 test_superproject_content origin/remove_sub1 &&
712 ! test -e sub1
713 )
714 '
715 # ... absorbing a .git directory along the way.
716 test_expect_success "$command: removed submodule absorbs submodules .git directory" '
717 prolog &&
718 reset_work_tree_to_interested add_sub1 &&
719 (
720 cd submodule_update &&
721 git branch -t remove_sub1 origin/remove_sub1 &&
722 replace_gitfile_with_git_dir sub1 &&
723 rm -rf .git/modules &&
724 $command remove_sub1 &&
725 test_superproject_content origin/remove_sub1 &&
726 ! test -e sub1 &&
727 test_git_directory_exists sub1
728 )
729 '
730
731 # Replacing it with a file ...
732 test_expect_success "$command: replace submodule with a file" '
733 prolog &&
734 reset_work_tree_to_interested add_sub1 &&
735 (
736 cd submodule_update &&
737 git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
738 $command replace_sub1_with_file &&
739 test_superproject_content origin/replace_sub1_with_file &&
740 test -f sub1
741 )
742 '
743 RESULTDS=success
744 if test "$KNOWN_FAILURE_DIRECTORY_SUBMODULE_CONFLICTS" = 1
745 then
746 RESULTDS=failure
747 fi
748 # ... must check its local work tree for untracked files
749 test_expect_$RESULTDS "$command: replace submodule with a file must fail with untracked files" '
750 prolog &&
751 reset_work_tree_to_interested add_sub1 &&
752 (
753 cd submodule_update &&
754 git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
755 : >sub1/untrackedfile &&
756 test_must_fail $command replace_sub1_with_file &&
757 test_superproject_content origin/add_sub1 &&
758 test_submodule_content sub1 origin/add_sub1
759 test -f sub1/untracked_file
760 )
761 '
762
763 ########################## Modified submodule #########################
764 # Updating a submodule sha1 updates the submodule's work tree
765 test_expect_success "$command: modified submodule updates submodule work tree" '
766 prolog &&
767 reset_work_tree_to_interested add_sub1 &&
768 (
769 cd submodule_update &&
770 git branch -t modify_sub1 origin/modify_sub1 &&
771 $command modify_sub1 &&
772 test_superproject_content origin/modify_sub1 &&
773 test_submodule_content sub1 origin/modify_sub1
774 )
775 '
776 # Updating a submodule to an invalid sha1 doesn't update the
777 # superproject nor the submodule's work tree.
778 test_expect_success "$command: updating to a missing submodule commit fails" '
779 prolog &&
780 reset_work_tree_to_interested add_sub1 &&
781 (
782 cd submodule_update &&
783 git branch -t invalid_sub1 origin/invalid_sub1 &&
784 test_must_fail $command invalid_sub1 &&
785 test_superproject_content origin/add_sub1 &&
786 test_submodule_content sub1 origin/add_sub1
787 )
788 '
789 }
790
791 # Declares and invokes several tests that, in various situations, checks that
792 # the provided Git command, when invoked with --recurse-submodules:
793 # - succeeds in updating the worktree and index of a superproject to a target
794 # commit, or fails atomically (depending on the test situation)
795 # - if succeeds, the contents of submodule directories are updated
796 #
797 # Specify the Git command so that "git $GIT_COMMAND --recurse-submodules"
798 # works.
799 #
800 # If the command under test is known to not work with submodules in certain
801 # conditions, set the appropriate KNOWN_FAILURE_* variable used in the tests
802 # below to 1.
803 #
804 # Use as follows:
805 #
806 # test_submodule_switch_recursing_with_args "$GIT_COMMAND"
807 test_submodule_switch_recursing_with_args () {
808 cmd_args="$1"
809 command="git $cmd_args --recurse-submodules"
810 test_submodule_recursing_with_args_common "$command"
811
812 RESULTDS=success
813 if test "$KNOWN_FAILURE_DIRECTORY_SUBMODULE_CONFLICTS" = 1
814 then
815 RESULTDS=failure
816 fi
817 RESULTOI=success
818 if test "$KNOWN_FAILURE_SUBMODULE_OVERWRITE_IGNORED_UNTRACKED" = 1
819 then
820 RESULTOI=failure
821 fi
822 # Switching to a commit letting a submodule appear cannot override an
823 # untracked file.
824 test_expect_success "$command: added submodule doesn't remove untracked file with same name" '
825 prolog &&
826 reset_work_tree_to_interested no_submodule &&
827 (
828 cd submodule_update &&
829 git branch -t add_sub1 origin/add_sub1 &&
830 : >sub1 &&
831 test_must_fail $command add_sub1 &&
832 test_superproject_content origin/no_submodule &&
833 test_must_be_empty sub1
834 )
835 '
836 # ... but an ignored file is fine.
837 test_expect_$RESULTOI "$command: added submodule removes an untracked ignored file" '
838 test_when_finished "rm submodule_update/.git/info/exclude" &&
839 prolog &&
840 reset_work_tree_to_interested no_submodule &&
841 (
842 cd submodule_update &&
843 git branch -t add_sub1 origin/add_sub1 &&
844 : >sub1 &&
845 echo sub1 >.git/info/exclude
846 $command add_sub1 &&
847 test_superproject_content origin/add_sub1 &&
848 test_submodule_content sub1 origin/add_sub1
849 )
850 '
851
852 # Replacing a submodule with files in a directory must succeeds
853 # when the submodule is clean
854 test_expect_$RESULTDS "$command: replace submodule with a directory" '
855 prolog &&
856 reset_work_tree_to_interested add_sub1 &&
857 (
858 cd submodule_update &&
859 git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
860 $command replace_sub1_with_directory &&
861 test_superproject_content origin/replace_sub1_with_directory &&
862 test_submodule_content sub1 origin/replace_sub1_with_directory
863 )
864 '
865 # ... absorbing a .git directory.
866 test_expect_$RESULTDS "$command: replace submodule containing a .git directory with a directory must absorb the git dir" '
867 prolog &&
868 reset_work_tree_to_interested add_sub1 &&
869 (
870 cd submodule_update &&
871 git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
872 replace_gitfile_with_git_dir sub1 &&
873 rm -rf .git/modules &&
874 $command replace_sub1_with_directory &&
875 test_superproject_content origin/replace_sub1_with_directory &&
876 test_git_directory_exists sub1
877 )
878 '
879
880 # ... and ignored files are ignored
881 test_expect_success "$command: replace submodule with a file works ignores ignored files in submodule" '
882 test_when_finished "rm submodule_update/.git/modules/sub1/info/exclude" &&
883 prolog &&
884 reset_work_tree_to_interested add_sub1 &&
885 (
886 cd submodule_update &&
887 git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
888 : >sub1/ignored &&
889 $command replace_sub1_with_file &&
890 test_superproject_content origin/replace_sub1_with_file &&
891 test -f sub1
892 )
893 '
894
895 test_expect_success "git -c submodule.recurse=true $cmd_args: modified submodule updates submodule work tree" '
896 prolog &&
897 reset_work_tree_to_interested add_sub1 &&
898 (
899 cd submodule_update &&
900 git branch -t modify_sub1 origin/modify_sub1 &&
901 git -c submodule.recurse=true $cmd_args modify_sub1 &&
902 test_superproject_content origin/modify_sub1 &&
903 test_submodule_content sub1 origin/modify_sub1
904 )
905 '
906
907 # recursing deeper than one level doesn't work yet.
908 test_expect_success "$command: modified submodule updates submodule recursively" '
909 prolog &&
910 reset_work_tree_to_interested add_nested_sub &&
911 (
912 cd submodule_update &&
913 git branch -t modify_sub1_recursively origin/modify_sub1_recursively &&
914 $command modify_sub1_recursively &&
915 test_superproject_content origin/modify_sub1_recursively &&
916 test_submodule_content sub1 origin/modify_sub1_recursively &&
917 test_submodule_content -C sub1 sub2 origin/modify_sub1_recursively
918 )
919 '
920 }
921
922 # Same as test_submodule_switch_recursing_with_args(), except that throwing
923 # away local changes in the superproject is allowed.
924 test_submodule_forced_switch_recursing_with_args () {
925 cmd_args="$1"
926 command="git $cmd_args --recurse-submodules"
927 test_submodule_recursing_with_args_common "$command"
928
929 RESULT=success
930 if test "$KNOWN_FAILURE_DIRECTORY_SUBMODULE_CONFLICTS" = 1
931 then
932 RESULT=failure
933 fi
934 # Switching to a commit letting a submodule appear does not care about
935 # an untracked file.
936 test_expect_success "$command: added submodule does remove untracked unignored file with same name when forced" '
937 prolog &&
938 reset_work_tree_to_interested no_submodule &&
939 (
940 cd submodule_update &&
941 git branch -t add_sub1 origin/add_sub1 &&
942 >sub1 &&
943 $command add_sub1 &&
944 test_superproject_content origin/add_sub1 &&
945 test_submodule_content sub1 origin/add_sub1
946 )
947 '
948
949 # Replacing a submodule with files in a directory ...
950 test_expect_success "$command: replace submodule with a directory" '
951 prolog &&
952 reset_work_tree_to_interested add_sub1 &&
953 (
954 cd submodule_update &&
955 git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
956 $command replace_sub1_with_directory &&
957 test_superproject_content origin/replace_sub1_with_directory
958 )
959 '
960 # ... absorbing a .git directory.
961 test_expect_success "$command: replace submodule containing a .git directory with a directory must fail" '
962 prolog &&
963 reset_work_tree_to_interested add_sub1 &&
964 (
965 cd submodule_update &&
966 git branch -t replace_sub1_with_directory origin/replace_sub1_with_directory &&
967 replace_gitfile_with_git_dir sub1 &&
968 rm -rf .git/modules/sub1 &&
969 $command replace_sub1_with_directory &&
970 test_superproject_content origin/replace_sub1_with_directory &&
971 test_submodule_content sub1 origin/modify_sub1
972 test_git_directory_exists sub1
973 )
974 '
975
976 # ... even if the submodule contains ignored files
977 test_expect_success "$command: replace submodule with a file ignoring ignored files" '
978 prolog &&
979 reset_work_tree_to_interested add_sub1 &&
980 (
981 cd submodule_update &&
982 git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
983 : >sub1/expect &&
984 $command replace_sub1_with_file &&
985 test_superproject_content origin/replace_sub1_with_file
986 )
987 '
988
989 # Updating a submodule from an invalid sha1 updates
990 test_expect_success "$command: modified submodule does update submodule work tree from invalid commit" '
991 prolog &&
992 reset_work_tree_to_interested invalid_sub1 &&
993 (
994 cd submodule_update &&
995 git branch -t valid_sub1 origin/valid_sub1 &&
996 $command valid_sub1 &&
997 test_superproject_content origin/valid_sub1 &&
998 test_submodule_content sub1 origin/valid_sub1
999 )
1000 '
1001
1002 # Old versions of Git were buggy writing the .git link file
1003 # (e.g. before f8eaa0ba98b and then moving the superproject repo
1004 # whose submodules contained absolute paths)
1005 test_expect_success "$command: updating submodules fixes .git links" '
1006 prolog &&
1007 reset_work_tree_to_interested add_sub1 &&
1008 (
1009 cd submodule_update &&
1010 git branch -t modify_sub1 origin/modify_sub1 &&
1011 echo "gitdir: bogus/path" >sub1/.git &&
1012 $command modify_sub1 &&
1013 test_superproject_content origin/modify_sub1 &&
1014 test_submodule_content sub1 origin/modify_sub1
1015 )
1016 '
1017 }