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https://github.com/git/git.git
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814f7d902b
In this test, we have merge two branches. On one branch, we renamed "a" to "e". On the other, we renamed "a" to "e" and then added a symlink pointing at "a" pointing to "e". The results for the test indicate that the merge should succeed, but also that "a" should no longer exist. Since both sides renamed "a" to the same destination, we will end up comparing those destinations for content. But what about what's left? One side (the rename only), replaced "a" with nothing. The other side replaced it with a symlink. The common base must also be nothing, because any "a" before this was meaningless (it was totally unrelated content that ended up getting renamed). The only sensible resolution is to keep the symlink. The rename-only side didn't touch the content versus the common base, and the other side added content. The 3-way merge dictates that we take the side with a change. And this gives the overall merge an intuitive result. One side made one change (a rename), and the other side made two changes: an identical rename, and an addition (that just happened to be at the same spot). The end result should contain both changes. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
656 lines
13 KiB
Bash
Executable file
656 lines
13 KiB
Bash
Executable file
#!/bin/sh
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test_description='merge-recursive backend test'
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. ./test-lib.sh
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test_expect_success 'setup 1' '
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echo hello >a &&
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o0=$(git hash-object a) &&
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cp a b &&
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cp a c &&
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mkdir d &&
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cp a d/e &&
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test_tick &&
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git add a b c d/e &&
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git commit -m initial &&
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c0=$(git rev-parse --verify HEAD) &&
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git branch side &&
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git branch df-1 &&
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git branch df-2 &&
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git branch df-3 &&
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git branch remove &&
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git branch submod &&
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git branch copy &&
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git branch rename &&
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if test_have_prereq SYMLINKS
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then
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git branch rename-ln
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fi &&
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echo hello >>a &&
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cp a d/e &&
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o1=$(git hash-object a) &&
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git add a d/e &&
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test_tick &&
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git commit -m "master modifies a and d/e" &&
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c1=$(git rev-parse --verify HEAD) &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o1 a"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o1 d/e"
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echo "100644 $o1 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o1 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'setup 2' '
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rm -rf [abcd] &&
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git checkout side &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o0 a"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o0 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual &&
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echo goodbye >>a &&
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o2=$(git hash-object a) &&
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git add a &&
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test_tick &&
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git commit -m "side modifies a" &&
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c2=$(git rev-parse --verify HEAD) &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o2 a"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o2 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'setup 3' '
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rm -rf [abcd] &&
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git checkout df-1 &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o0 a"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o0 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual &&
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rm -f b && mkdir b && echo df-1 >b/c && git add b/c &&
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o3=$(git hash-object b/c) &&
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test_tick &&
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git commit -m "df-1 makes b/c" &&
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c3=$(git rev-parse --verify HEAD) &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o0 a"
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echo "100644 blob $o3 b/c"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o0 0 a"
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echo "100644 $o3 0 b/c"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'setup 4' '
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rm -rf [abcd] &&
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git checkout df-2 &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o0 a"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o0 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual &&
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rm -f a && mkdir a && echo df-2 >a/c && git add a/c &&
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o4=$(git hash-object a/c) &&
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test_tick &&
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git commit -m "df-2 makes a/c" &&
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c4=$(git rev-parse --verify HEAD) &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o4 a/c"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o4 0 a/c"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'setup 5' '
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rm -rf [abcd] &&
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git checkout remove &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o0 a"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o0 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual &&
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rm -f b &&
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echo remove-conflict >a &&
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git add a &&
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git rm b &&
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o5=$(git hash-object a) &&
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test_tick &&
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git commit -m "remove removes b and modifies a" &&
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c5=$(git rev-parse --verify HEAD) &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o5 a"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o5 0 a"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'setup 6' '
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rm -rf [abcd] &&
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git checkout df-3 &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o0 a"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o0 d/e"
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echo "100644 $o0 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o0 0 d/e"
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) >expected &&
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test_cmp expected actual &&
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rm -fr d && echo df-3 >d && git add d &&
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o6=$(git hash-object d) &&
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test_tick &&
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git commit -m "df-3 makes d" &&
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c6=$(git rev-parse --verify HEAD) &&
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( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
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(
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echo "100644 blob $o0 a"
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echo "100644 blob $o0 b"
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echo "100644 blob $o0 c"
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echo "100644 blob $o6 d"
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echo "100644 $o0 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o6 0 d"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'setup 7' '
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git checkout submod &&
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git rm d/e &&
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test_tick &&
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git commit -m "remove d/e" &&
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git update-index --add --cacheinfo 160000 $c1 d &&
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test_tick &&
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git commit -m "make d/ a submodule"
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'
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test_expect_success 'setup 8' '
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git checkout rename &&
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git mv a e &&
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git add e &&
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test_tick &&
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git commit -m "rename a->e" &&
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if test_have_prereq SYMLINKS
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then
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git checkout rename-ln &&
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git mv a e &&
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ln -s e a &&
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git add a e &&
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test_tick &&
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git commit -m "rename a->e, symlink a->e" &&
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oln=`printf e | git hash-object --stdin`
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fi
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'
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test_expect_success 'setup 9' '
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git checkout copy &&
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cp a e &&
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git add e &&
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test_tick &&
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git commit -m "copy a->e"
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'
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test_expect_success 'merge-recursive simple' '
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rm -fr [abcd] &&
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git checkout -f "$c2" &&
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git merge-recursive "$c0" -- "$c2" "$c1"
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status=$?
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case "$status" in
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1)
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: happy
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;;
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*)
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echo >&2 "why status $status!!!"
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false
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;;
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esac
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'
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test_expect_success 'merge-recursive result' '
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git ls-files -s >actual &&
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(
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echo "100644 $o0 1 a"
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echo "100644 $o2 2 a"
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echo "100644 $o1 3 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o1 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'fail if the index has unresolved entries' '
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rm -fr [abcd] &&
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git checkout -f "$c1" &&
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test_must_fail git merge "$c5" &&
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test_must_fail git merge "$c5" 2> out &&
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test_i18ngrep "not possible because you have unmerged files" out &&
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git add -u &&
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test_must_fail git merge "$c5" 2> out &&
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test_i18ngrep "You have not concluded your merge" out &&
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rm -f .git/MERGE_HEAD &&
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test_must_fail git merge "$c5" 2> out &&
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test_i18ngrep "Your local changes to the following files would be overwritten by merge:" out
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'
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test_expect_success 'merge-recursive remove conflict' '
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rm -fr [abcd] &&
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git checkout -f "$c1" &&
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git merge-recursive "$c0" -- "$c1" "$c5"
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status=$?
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case "$status" in
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1)
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: happy
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;;
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*)
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echo >&2 "why status $status!!!"
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false
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;;
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esac
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'
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test_expect_success 'merge-recursive remove conflict' '
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git ls-files -s >actual &&
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(
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echo "100644 $o0 1 a"
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echo "100644 $o1 2 a"
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echo "100644 $o5 3 a"
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echo "100644 $o0 0 c"
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echo "100644 $o1 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'merge-recursive d/f simple' '
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rm -fr [abcd] &&
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git reset --hard &&
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git checkout -f "$c1" &&
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git merge-recursive "$c0" -- "$c1" "$c3"
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'
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test_expect_success 'merge-recursive result' '
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git ls-files -s >actual &&
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(
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echo "100644 $o1 0 a"
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echo "100644 $o3 0 b/c"
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echo "100644 $o0 0 c"
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echo "100644 $o1 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'merge-recursive d/f conflict' '
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rm -fr [abcd] &&
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git reset --hard &&
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git checkout -f "$c1" &&
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git merge-recursive "$c0" -- "$c1" "$c4"
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status=$?
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case "$status" in
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1)
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: happy
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;;
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*)
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echo >&2 "why status $status!!!"
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false
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;;
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esac
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'
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test_expect_success 'merge-recursive d/f conflict result' '
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git ls-files -s >actual &&
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(
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echo "100644 $o0 1 a"
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echo "100644 $o1 2 a"
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echo "100644 $o4 0 a/c"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o1 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'merge-recursive d/f conflict the other way' '
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rm -fr [abcd] &&
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git reset --hard &&
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git checkout -f "$c4" &&
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git merge-recursive "$c0" -- "$c4" "$c1"
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status=$?
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case "$status" in
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1)
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: happy
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;;
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*)
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echo >&2 "why status $status!!!"
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false
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;;
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esac
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'
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test_expect_success 'merge-recursive d/f conflict result the other way' '
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git ls-files -s >actual &&
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(
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echo "100644 $o0 1 a"
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echo "100644 $o1 3 a"
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echo "100644 $o4 0 a/c"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o1 0 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'merge-recursive d/f conflict' '
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rm -fr [abcd] &&
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git reset --hard &&
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git checkout -f "$c1" &&
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git merge-recursive "$c0" -- "$c1" "$c6"
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status=$?
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case "$status" in
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1)
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: happy
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;;
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*)
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echo >&2 "why status $status!!!"
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false
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;;
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esac
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'
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test_expect_success 'merge-recursive d/f conflict result' '
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git ls-files -s >actual &&
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(
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echo "100644 $o1 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o6 3 d"
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echo "100644 $o0 1 d/e"
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echo "100644 $o1 2 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'merge-recursive d/f conflict' '
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rm -fr [abcd] &&
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git reset --hard &&
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git checkout -f "$c6" &&
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git merge-recursive "$c0" -- "$c6" "$c1"
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status=$?
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case "$status" in
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1)
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: happy
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;;
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*)
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echo >&2 "why status $status!!!"
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false
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;;
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esac
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'
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test_expect_success 'merge-recursive d/f conflict result' '
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git ls-files -s >actual &&
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(
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echo "100644 $o1 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
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echo "100644 $o6 2 d"
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echo "100644 $o0 1 d/e"
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echo "100644 $o1 3 d/e"
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) >expected &&
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test_cmp expected actual
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'
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test_expect_success 'reset and 3-way merge' '
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git reset --hard "$c2" &&
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git read-tree -m "$c0" "$c2" "$c1"
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'
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test_expect_success 'reset and bind merge' '
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git reset --hard master &&
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git read-tree --prefix=M/ master &&
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git ls-files -s >actual &&
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(
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echo "100644 $o1 0 M/a"
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echo "100644 $o0 0 M/b"
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echo "100644 $o0 0 M/c"
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echo "100644 $o1 0 M/d/e"
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echo "100644 $o1 0 a"
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echo "100644 $o0 0 b"
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echo "100644 $o0 0 c"
|
|
echo "100644 $o1 0 d/e"
|
|
) >expected &&
|
|
test_cmp expected actual &&
|
|
|
|
git read-tree --prefix=a1/ master &&
|
|
git ls-files -s >actual &&
|
|
(
|
|
echo "100644 $o1 0 M/a"
|
|
echo "100644 $o0 0 M/b"
|
|
echo "100644 $o0 0 M/c"
|
|
echo "100644 $o1 0 M/d/e"
|
|
echo "100644 $o1 0 a"
|
|
echo "100644 $o1 0 a1/a"
|
|
echo "100644 $o0 0 a1/b"
|
|
echo "100644 $o0 0 a1/c"
|
|
echo "100644 $o1 0 a1/d/e"
|
|
echo "100644 $o0 0 b"
|
|
echo "100644 $o0 0 c"
|
|
echo "100644 $o1 0 d/e"
|
|
) >expected &&
|
|
test_cmp expected actual &&
|
|
|
|
git read-tree --prefix=z/ master &&
|
|
git ls-files -s >actual &&
|
|
(
|
|
echo "100644 $o1 0 M/a"
|
|
echo "100644 $o0 0 M/b"
|
|
echo "100644 $o0 0 M/c"
|
|
echo "100644 $o1 0 M/d/e"
|
|
echo "100644 $o1 0 a"
|
|
echo "100644 $o1 0 a1/a"
|
|
echo "100644 $o0 0 a1/b"
|
|
echo "100644 $o0 0 a1/c"
|
|
echo "100644 $o1 0 a1/d/e"
|
|
echo "100644 $o0 0 b"
|
|
echo "100644 $o0 0 c"
|
|
echo "100644 $o1 0 d/e"
|
|
echo "100644 $o1 0 z/a"
|
|
echo "100644 $o0 0 z/b"
|
|
echo "100644 $o0 0 z/c"
|
|
echo "100644 $o1 0 z/d/e"
|
|
) >expected &&
|
|
test_cmp expected actual
|
|
|
|
'
|
|
|
|
test_expect_success 'merge removes empty directories' '
|
|
|
|
git reset --hard master &&
|
|
git checkout -b rm &&
|
|
git rm d/e &&
|
|
git commit -mremoved-d/e &&
|
|
git checkout master &&
|
|
git merge -s recursive rm &&
|
|
test_must_fail test -d d
|
|
'
|
|
|
|
test_expect_failure 'merge-recursive simple w/submodule' '
|
|
|
|
git checkout submod &&
|
|
git merge remove
|
|
'
|
|
|
|
test_expect_failure 'merge-recursive simple w/submodule result' '
|
|
|
|
git ls-files -s >actual &&
|
|
(
|
|
echo "100644 $o5 0 a"
|
|
echo "100644 $o0 0 c"
|
|
echo "160000 $c1 0 d"
|
|
) >expected &&
|
|
test_cmp expected actual
|
|
'
|
|
|
|
test_expect_success 'merge-recursive copy vs. rename' '
|
|
git checkout -f copy &&
|
|
git merge rename &&
|
|
( git ls-tree -r HEAD && git ls-files -s ) >actual &&
|
|
(
|
|
echo "100644 blob $o0 b"
|
|
echo "100644 blob $o0 c"
|
|
echo "100644 blob $o0 d/e"
|
|
echo "100644 blob $o0 e"
|
|
echo "100644 $o0 0 b"
|
|
echo "100644 $o0 0 c"
|
|
echo "100644 $o0 0 d/e"
|
|
echo "100644 $o0 0 e"
|
|
) >expected &&
|
|
test_cmp expected actual
|
|
'
|
|
|
|
if test_have_prereq SYMLINKS
|
|
then
|
|
test_expect_failure 'merge-recursive rename vs. rename/symlink' '
|
|
|
|
git checkout -f rename &&
|
|
git merge rename-ln &&
|
|
( git ls-tree -r HEAD ; git ls-files -s ) >actual &&
|
|
(
|
|
echo "120000 blob $oln a"
|
|
echo "100644 blob $o0 b"
|
|
echo "100644 blob $o0 c"
|
|
echo "100644 blob $o0 d/e"
|
|
echo "100644 blob $o0 e"
|
|
echo "120000 $oln 0 a"
|
|
echo "100644 $o0 0 b"
|
|
echo "100644 $o0 0 c"
|
|
echo "100644 $o0 0 d/e"
|
|
echo "100644 $o0 0 e"
|
|
) >expected &&
|
|
test_cmp expected actual
|
|
'
|
|
fi
|
|
|
|
|
|
test_done
|