3 test_description='merging with submodules'
17 test_expect_success setup '
22 echo original > file &&
25 git commit -m sub-root) &&
30 git checkout -b a master &&
35 git commit -m sub-a) &&
40 git checkout -b b master &&
45 git commit -m sub-b) &&
50 git checkout -b c a &&
51 git merge -s ours b &&
53 git checkout -b d b &&
65 # a in the main repository records to sub-a in the submodule and
66 # analogous b and c. d should be automatically found by merging c into
67 # b in the main repository.
68 test_expect_success 'setup for merge search' '
75 echo "file-a" > file-a &&
77 git commit -m "sub-a" &&
79 git commit --allow-empty -m init &&
87 git checkout -b sub-b &&
88 echo "file-b" > file-b &&
90 git commit -m "sub-b") &&
91 git commit -a -m "b" &&
93 git checkout -b c a &&
95 git checkout -b sub-c sub-a &&
96 echo "file-c" > file-c &&
98 git commit -m "sub-c") &&
99 git commit -a -m "c" &&
101 git checkout -b d a &&
103 git checkout -b sub-d sub-b &&
105 git commit -a -m "d" &&
108 git checkout -b g init &&
110 git checkout -b sub-g sub-c) &&
112 git commit -a -m "g")
115 test_expect_success 'merge with one side as a fast-forward of the other' '
117 git checkout -b test-forward b &&
119 git ls-tree test-forward sub | cut -f1 | cut -f3 -d" " > actual &&
121 git rev-parse sub-d > ../expect) &&
122 test_cmp expect actual)
125 test_expect_success 'merging should conflict for non fast-forward' '
127 git checkout -b test-nonforward b &&
129 git rev-parse sub-d > ../expect) &&
130 test_must_fail git merge c 2> actual &&
131 grep $(cat expect) actual > /dev/null &&
135 test_expect_success 'merging should fail for ambiguous common parent' '
137 git checkout -b test-ambiguous b &&
139 git checkout -b ambiguous sub-b &&
141 git rev-parse sub-d > ../expect1 &&
142 git rev-parse ambiguous > ../expect2) &&
143 test_must_fail git merge c 2> actual &&
144 grep $(cat expect1) actual > /dev/null &&
145 grep $(cat expect2) actual > /dev/null &&
149 # in a situation like this
153 # sub-a --- sub-b --- sub-d
163 # A merge between e and f should fail because one of the submodule
164 # commits (sub-a) does not descend from the submodule merge-base (sub-b).
166 test_expect_success 'merging should fail for changes that are backwards' '
168 git checkout -b bb a &&
170 git checkout sub-b) &&
171 git commit -a -m "bb" &&
173 git checkout -b e bb &&
175 git checkout sub-a) &&
176 git commit -a -m "e" &&
178 git checkout -b f bb &&
180 git checkout sub-d) &&
181 git commit -a -m "f" &&
183 git checkout -b test-backward e &&
184 test_must_fail git merge f)
188 # Check that the conflicting submodule is detected when it is
189 # in the common ancestor. status should be 'U00...00"
190 test_expect_success 'git submodule status should display the merge conflict properly with merge base' '
192 cat >.gitmodules <<EOF &&
195 url = $TRASH_DIRECTORY/sub
200 git submodule status > actual &&
201 test_cmp expect actual &&
205 # Check that the conflicting submodule is detected when it is
206 # not in the common ancestor. status should be 'U00...00"
207 test_expect_success 'git submodule status should display the merge conflict properly without merge-base' '
209 git checkout -b test-no-merge-base g &&
210 test_must_fail git merge b &&
211 cat >.gitmodules <<EOF &&
214 url = $TRASH_DIRECTORY/sub
219 git submodule status > actual &&
220 test_cmp expect actual &&
225 test_expect_success 'merging with a modify/modify conflict between merge bases' '
226 git reset --hard HEAD &&
227 git checkout -b test2 c &&
231 # canonical criss-cross history in top and submodule
232 test_expect_success 'setup for recursive merge with submodule' '
233 mkdir merge-recursive &&
234 (cd merge-recursive &&
240 git checkout -b sub-b master &&
242 git checkout -b sub-c master &&
244 git checkout -b sub-bc sub-b &&
246 git checkout -b sub-cb sub-c &&
248 git checkout master) &&
251 git checkout -b top-b master &&
252 (cd sub && git checkout sub-b) &&
255 git checkout -b top-c master &&
256 (cd sub && git checkout sub-c) &&
259 git checkout -b top-bc top-b &&
260 git merge -s ours --no-commit top-c &&
261 (cd sub && git checkout sub-bc) &&
264 git checkout -b top-cb top-c &&
265 git merge -s ours --no-commit top-b &&
266 (cd sub && git checkout sub-cb) &&
271 # merge should leave submodule unmerged in index
272 test_expect_success 'recursive merge with submodule' '
273 (cd merge-recursive &&
274 test_must_fail git merge top-bc &&
275 echo "160000 $(git rev-parse top-cb:sub) 2 sub" > expect2 &&
276 echo "160000 $(git rev-parse top-bc:sub) 3 sub" > expect3 &&
277 git ls-files -u > actual &&
278 grep "$(cat expect2)" actual > /dev/null &&
279 grep "$(cat expect3)" actual > /dev/null)
282 # File/submodule conflict
284 # Commit A: path (submodule)
286 # Expected: path/ is submodule and file contents for B's path are somewhere
288 test_expect_success 'setup file/submodule conflict' '
289 test_create_repo file-submodule &&
293 git commit --allow-empty -m O &&
299 echo content >path &&
304 test_create_repo path &&
305 test_commit -C path world &&
306 git submodule add ./path &&
311 test_expect_failure 'file/submodule conflict' '
312 test_when_finished "git -C file-submodule reset --hard" &&
317 test_must_fail git merge B^0 &&
319 git ls-files -s >out &&
320 test_line_count = 3 out &&
321 git ls-files -u >out &&
322 test_line_count = 2 out &&
324 # path/ is still a submodule
325 test_path_is_dir path/.git &&
327 # There is a submodule at "path", so B:path cannot be written
328 # there. We expect it to be written somewhere in the same
329 # directory, though, so just grep for its content in all
330 # files, and ignore "grep: path: Is a directory" message
331 echo Checking if contents from B:path showed up anywhere &&
332 grep -q content * 2>/dev/null
336 test_expect_success 'file/submodule conflict; merge --abort works afterward' '
337 test_when_finished "git -C file-submodule reset --hard" &&
342 test_must_fail git merge B^0 >out 2>err &&
344 test_path_is_file .git/MERGE_HEAD &&
349 # Directory/submodule conflict
351 # Commit A: path (submodule), with sole tracked file named 'world'
352 # Commit B1: path/file
353 # Commit B2: path/world
355 # Expected from merge of A & B1:
356 # Contents under path/ from commit B1 are renamed elsewhere; we do not
357 # want to write files from one of our tracked directories into a submodule
359 # Expected from merge of A & B2:
360 # Similar to last merge, but with a slight twist: we don't want paths
361 # under the submodule to be treated as untracked or in the way.
363 test_expect_success 'setup directory/submodule conflict' '
364 test_create_repo directory-submodule &&
366 cd directory-submodule &&
368 git commit --allow-empty -m O &&
376 echo contents >path/file &&
382 echo contents >path/world &&
383 git add path/world &&
387 test_create_repo path &&
388 test_commit -C path hello world &&
389 git submodule add ./path &&
394 test_expect_failure 'directory/submodule conflict; keep submodule clean' '
395 test_when_finished "git -C directory-submodule reset --hard" &&
397 cd directory-submodule &&
400 test_must_fail git merge B1^0 &&
402 git ls-files -s >out &&
403 test_line_count = 3 out &&
404 git ls-files -u >out &&
405 test_line_count = 1 out &&
407 # path/ is still a submodule
408 test_path_is_dir path/.git &&
410 echo Checking if contents from B1:path/file showed up &&
411 # Would rather use grep -r, but that is GNU extension...
412 git ls-files -co | xargs grep -q contents 2>/dev/null &&
414 # However, B1:path/file should NOT have shown up at path/file,
415 # because we should not write into the submodule
416 test_path_is_missing path/file
420 test_expect_failure !FAIL_PREREQS 'directory/submodule conflict; should not treat submodule files as untracked or in the way' '
421 test_when_finished "git -C directory-submodule/path reset --hard" &&
422 test_when_finished "git -C directory-submodule reset --hard" &&
424 cd directory-submodule &&
427 test_must_fail git merge B2^0 >out 2>err &&
429 # We do not want files within the submodule to prevent the
430 # merge from starting; we should not be writing to such paths
432 test_i18ngrep ! "refusing to lose untracked file at" err
436 test_expect_failure 'directory/submodule conflict; merge --abort works afterward' '
437 test_when_finished "git -C directory-submodule/path reset --hard" &&
438 test_when_finished "git -C directory-submodule reset --hard" &&
440 cd directory-submodule &&
443 test_must_fail git merge B2^0 &&
444 test_path_is_file .git/MERGE_HEAD &&
446 # merge --abort should succeed, should clear .git/MERGE_HEAD,
447 # and should not leave behind any conflicted files
449 test_path_is_missing .git/MERGE_HEAD &&
450 git ls-files -u >conflicts &&
451 test_must_be_empty conflicts