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 if test "$GIT_TEST_MERGE_ALGORITHM" = ort
132 test_must_fail git merge c >actual
134 test_must_fail git merge c 2> actual
136 grep $(cat expect) actual > /dev/null &&
140 test_expect_success 'merging should fail for ambiguous common parent' '
142 git checkout -b test-ambiguous b &&
144 git checkout -b ambiguous sub-b &&
146 if test "$GIT_TEST_MERGE_ALGORITHM" = ort
148 git rev-parse --short sub-d >../expect1 &&
149 git rev-parse --short ambiguous >../expect2
151 git rev-parse sub-d > ../expect1 &&
152 git rev-parse ambiguous > ../expect2
155 if test "$GIT_TEST_MERGE_ALGORITHM" = ort
157 test_must_fail git merge c >actual
159 test_must_fail git merge c 2> actual
161 grep $(cat expect1) actual > /dev/null &&
162 grep $(cat expect2) actual > /dev/null &&
166 # in a situation like this
170 # sub-a --- sub-b --- sub-d
180 # A merge between e and f should fail because one of the submodule
181 # commits (sub-a) does not descend from the submodule merge-base (sub-b).
183 test_expect_success 'merging should fail for changes that are backwards' '
185 git checkout -b bb a &&
187 git checkout sub-b) &&
188 git commit -a -m "bb" &&
190 git checkout -b e bb &&
192 git checkout sub-a) &&
193 git commit -a -m "e" &&
195 git checkout -b f bb &&
197 git checkout sub-d) &&
198 git commit -a -m "f" &&
200 git checkout -b test-backward e &&
201 test_must_fail git merge f)
205 # Check that the conflicting submodule is detected when it is
206 # in the common ancestor. status should be 'U00...00"
207 test_expect_success 'git submodule status should display the merge conflict properly with merge base' '
209 cat >.gitmodules <<EOF &&
212 url = $TRASH_DIRECTORY/sub
217 git submodule status > actual &&
218 test_cmp expect actual &&
222 # Check that the conflicting submodule is detected when it is
223 # not in the common ancestor. status should be 'U00...00"
224 test_expect_success 'git submodule status should display the merge conflict properly without merge-base' '
226 git checkout -b test-no-merge-base g &&
227 test_must_fail git merge b &&
228 cat >.gitmodules <<EOF &&
231 url = $TRASH_DIRECTORY/sub
236 git submodule status > actual &&
237 test_cmp expect actual &&
242 test_expect_success 'merging with a modify/modify conflict between merge bases' '
243 git reset --hard HEAD &&
244 git checkout -b test2 c &&
248 # canonical criss-cross history in top and submodule
249 test_expect_success 'setup for recursive merge with submodule' '
250 mkdir merge-recursive &&
251 (cd merge-recursive &&
257 git checkout -b sub-b master &&
259 git checkout -b sub-c master &&
261 git checkout -b sub-bc sub-b &&
263 git checkout -b sub-cb sub-c &&
265 git checkout master) &&
268 git checkout -b top-b master &&
269 (cd sub && git checkout sub-b) &&
272 git checkout -b top-c master &&
273 (cd sub && git checkout sub-c) &&
276 git checkout -b top-bc top-b &&
277 git merge -s ours --no-commit top-c &&
278 (cd sub && git checkout sub-bc) &&
281 git checkout -b top-cb top-c &&
282 git merge -s ours --no-commit top-b &&
283 (cd sub && git checkout sub-cb) &&
288 # merge should leave submodule unmerged in index
289 test_expect_success 'recursive merge with submodule' '
290 (cd merge-recursive &&
291 test_must_fail git merge top-bc &&
292 echo "160000 $(git rev-parse top-cb:sub) 2 sub" > expect2 &&
293 echo "160000 $(git rev-parse top-bc:sub) 3 sub" > expect3 &&
294 git ls-files -u > actual &&
295 grep "$(cat expect2)" actual > /dev/null &&
296 grep "$(cat expect3)" actual > /dev/null)
299 # File/submodule conflict
301 # Commit A: path (submodule)
303 # Expected: path/ is submodule and file contents for B's path are somewhere
305 test_expect_success 'setup file/submodule conflict' '
306 test_create_repo file-submodule &&
310 git commit --allow-empty -m O &&
316 echo content >path &&
321 test_create_repo path &&
322 test_commit -C path world &&
323 git submodule add ./path &&
328 test_expect_failure 'file/submodule conflict' '
329 test_when_finished "git -C file-submodule reset --hard" &&
334 test_must_fail git merge B^0 &&
336 git ls-files -s >out &&
337 test_line_count = 3 out &&
338 git ls-files -u >out &&
339 test_line_count = 2 out &&
341 # path/ is still a submodule
342 test_path_is_dir path/.git &&
344 # There is a submodule at "path", so B:path cannot be written
345 # there. We expect it to be written somewhere in the same
346 # directory, though, so just grep for its content in all
347 # files, and ignore "grep: path: Is a directory" message
348 echo Checking if contents from B:path showed up anywhere &&
349 grep -q content * 2>/dev/null
353 test_expect_success 'file/submodule conflict; merge --abort works afterward' '
354 test_when_finished "git -C file-submodule reset --hard" &&
359 test_must_fail git merge B^0 >out 2>err &&
361 test_path_is_file .git/MERGE_HEAD &&
366 # Directory/submodule conflict
368 # Commit A: path (submodule), with sole tracked file named 'world'
369 # Commit B1: path/file
370 # Commit B2: path/world
372 # Expected from merge of A & B1:
373 # Contents under path/ from commit B1 are renamed elsewhere; we do not
374 # want to write files from one of our tracked directories into a submodule
376 # Expected from merge of A & B2:
377 # Similar to last merge, but with a slight twist: we don't want paths
378 # under the submodule to be treated as untracked or in the way.
380 test_expect_success 'setup directory/submodule conflict' '
381 test_create_repo directory-submodule &&
383 cd directory-submodule &&
385 git commit --allow-empty -m O &&
393 echo contents >path/file &&
399 echo contents >path/world &&
400 git add path/world &&
404 test_create_repo path &&
405 test_commit -C path hello world &&
406 git submodule add ./path &&
411 test_expect_failure 'directory/submodule conflict; keep submodule clean' '
412 test_when_finished "git -C directory-submodule reset --hard" &&
414 cd directory-submodule &&
417 test_must_fail git merge B1^0 &&
419 git ls-files -s >out &&
420 test_line_count = 3 out &&
421 git ls-files -u >out &&
422 test_line_count = 1 out &&
424 # path/ is still a submodule
425 test_path_is_dir path/.git &&
427 echo Checking if contents from B1:path/file showed up &&
428 # Would rather use grep -r, but that is GNU extension...
429 git ls-files -co | xargs grep -q contents 2>/dev/null &&
431 # However, B1:path/file should NOT have shown up at path/file,
432 # because we should not write into the submodule
433 test_path_is_missing path/file
437 test_expect_failure !FAIL_PREREQS 'directory/submodule conflict; should not treat submodule files as untracked or in the way' '
438 test_when_finished "git -C directory-submodule/path reset --hard" &&
439 test_when_finished "git -C directory-submodule reset --hard" &&
441 cd directory-submodule &&
444 test_must_fail git merge B2^0 >out 2>err &&
446 # We do not want files within the submodule to prevent the
447 # merge from starting; we should not be writing to such paths
449 test_i18ngrep ! "refusing to lose untracked file at" err
453 test_expect_failure 'directory/submodule conflict; merge --abort works afterward' '
454 test_when_finished "git -C directory-submodule/path reset --hard" &&
455 test_when_finished "git -C directory-submodule reset --hard" &&
457 cd directory-submodule &&
460 test_must_fail git merge B2^0 &&
461 test_path_is_file .git/MERGE_HEAD &&
463 # merge --abort should succeed, should clear .git/MERGE_HEAD,
464 # and should not leave behind any conflicted files
466 test_path_is_missing .git/MERGE_HEAD &&
467 git ls-files -u >conflicts &&
468 test_must_be_empty conflicts