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185 lines
3.6 KiB
185 lines
3.6 KiB
#!/bin/sh |
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test_description='merging with submodules' |
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. ./test-lib.sh |
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# |
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# history |
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# |
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# a --- c |
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# / \ / |
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# root X |
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# \ / \ |
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# b --- d |
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# |
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test_expect_success setup ' |
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mkdir sub && |
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(cd sub && |
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git init && |
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echo original > file && |
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git add file && |
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test_tick && |
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git commit -m sub-root) && |
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git add sub && |
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test_tick && |
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git commit -m root && |
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git checkout -b a master && |
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(cd sub && |
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echo A > file && |
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git add file && |
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test_tick && |
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git commit -m sub-a) && |
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git add sub && |
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test_tick && |
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git commit -m a && |
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git checkout -b b master && |
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(cd sub && |
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echo B > file && |
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git add file && |
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test_tick && |
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git commit -m sub-b) && |
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git add sub && |
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test_tick && |
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git commit -m b && |
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git checkout -b c a && |
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git merge -s ours b && |
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git checkout -b d b && |
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git merge -s ours a |
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' |
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# History setup |
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# |
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# b |
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# / \ |
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# a d |
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# \ / |
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# c |
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# |
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# a in the main repository records to sub-a in the submodule and |
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# analogous b and c. d should be automatically found by merging c into |
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# b in the main repository. |
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test_expect_success 'setup for merge search' ' |
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mkdir merge-search && |
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(cd merge-search && |
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git init && |
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mkdir sub && |
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(cd sub && |
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git init && |
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echo "file-a" > file-a && |
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git add file-a && |
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git commit -m "sub-a" && |
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git branch sub-a) && |
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git add sub && |
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git commit -m "a" && |
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git branch a && |
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git checkout -b b && |
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(cd sub && |
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git checkout -b sub-b && |
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echo "file-b" > file-b && |
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git add file-b && |
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git commit -m "sub-b") && |
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git commit -a -m "b" && |
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git checkout -b c a && |
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(cd sub && |
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git checkout -b sub-c sub-a && |
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echo "file-c" > file-c && |
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git add file-c && |
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git commit -m "sub-c") && |
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git commit -a -m "c" && |
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git checkout -b d a && |
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(cd sub && |
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git checkout -b sub-d sub-b && |
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git merge sub-c) && |
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git commit -a -m "d" && |
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git branch test b) |
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' |
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test_expect_success 'merge with one side as a fast-forward of the other' ' |
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(cd merge-search && |
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git checkout -b test-forward b && |
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git merge d && |
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git ls-tree test-forward sub | cut -f1 | cut -f3 -d" " > actual && |
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(cd sub && |
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git rev-parse sub-d > ../expect) && |
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test_cmp actual expect) |
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' |
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test_expect_success 'merging should conflict for non fast-forward' ' |
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(cd merge-search && |
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git checkout -b test-nonforward b && |
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(cd sub && |
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git rev-parse sub-d > ../expect) && |
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test_must_fail git merge c 2> actual && |
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grep $(cat expect) actual > /dev/null && |
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git reset --hard) |
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' |
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test_expect_success 'merging should fail for ambiguous common parent' ' |
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(cd merge-search && |
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git checkout -b test-ambiguous b && |
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(cd sub && |
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git checkout -b ambiguous sub-b && |
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git merge sub-c && |
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git rev-parse sub-d > ../expect1 && |
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git rev-parse ambiguous > ../expect2) && |
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test_must_fail git merge c 2> actual && |
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grep $(cat expect1) actual > /dev/null && |
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grep $(cat expect2) actual > /dev/null && |
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git reset --hard) |
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' |
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# in a situation like this |
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# |
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# submodule tree: |
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# |
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# sub-a --- sub-b --- sub-d |
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# |
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# main tree: |
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# |
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# e (sub-a) |
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# / |
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# bb (sub-b) |
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# \ |
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# f (sub-d) |
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# |
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# A merge between e and f should fail because one of the submodule |
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# commits (sub-a) does not descend from the submodule merge-base (sub-b). |
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# |
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test_expect_success 'merging should fail for changes that are backwards' ' |
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(cd merge-search && |
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git checkout -b bb a && |
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(cd sub && |
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git checkout sub-b) && |
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git commit -a -m "bb" && |
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git checkout -b e bb && |
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(cd sub && |
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git checkout sub-a) && |
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git commit -a -m "e" && |
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git checkout -b f bb && |
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(cd sub && |
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git checkout sub-d) && |
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git commit -a -m "f" && |
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git checkout -b test-backward e && |
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test_must_fail git merge f) |
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' |
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test_expect_success 'merging with a modify/modify conflict between merge bases' ' |
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git reset --hard HEAD && |
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git checkout -b test2 c && |
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git merge d |
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' |
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test_done
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