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833abdc932
This happens when git merge is run to merge multiple commits that are descendants of current HEAD (or are HEAD). We've hit this while updating master to origin/master but accidentaly we called (while being on master): $ git merge master origin/master Here is a minimal testcase: $ git init a && cd a $ echo a >a && git add a $ git commit -minitial $ echo b >a && git add a $ git commit -msecond $ git checkout master^ $ git merge master master Fast-forwarding to: master Already up-to-date with master Merge made by the 'octopus' strategy. a | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) $ git cat-file commit HEAD tree eebfed94e75e7760540d1485c740902590a00332 parent bd679e85202280b263e20a57639a142fa14c2c64 author Michał Kiedrowicz <michal.kiedrowicz@gmail.com> 1329132996 +0100 committer Michał Kiedrowicz <michal.kiedrowicz@gmail.com> 1329132996 +0100 Merge branches 'master' and 'master' into HEAD Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
102 lines
2 KiB
Bash
Executable file
102 lines
2 KiB
Bash
Executable file
#!/bin/sh
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test_description='git merge
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Testing octopus merge with more than 25 refs.'
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. ./test-lib.sh
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test_expect_success 'setup' '
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echo c0 > c0.c &&
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git add c0.c &&
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git commit -m c0 &&
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git tag c0 &&
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i=1 &&
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while test $i -le 30
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do
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git reset --hard c0 &&
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echo c$i > c$i.c &&
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git add c$i.c &&
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git commit -m c$i &&
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git tag c$i &&
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i=`expr $i + 1` || return 1
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done
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'
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test_expect_success 'merge c1 with c2, c3, c4, ... c29' '
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git reset --hard c1 &&
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i=2 &&
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refs="" &&
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while test $i -le 30
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do
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refs="$refs c$i"
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i=`expr $i + 1`
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done &&
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git merge $refs &&
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test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
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i=1 &&
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while test $i -le 30
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do
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test "$(git rev-parse c$i)" = "$(git rev-parse HEAD^$i)" &&
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i=`expr $i + 1` || return 1
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done &&
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git diff --exit-code &&
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i=1 &&
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while test $i -le 30
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do
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test -f c$i.c &&
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i=`expr $i + 1` || return 1
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done
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'
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cat >expected <<\EOF
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Trying simple merge with c2
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Trying simple merge with c3
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Trying simple merge with c4
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Merge made by the 'octopus' strategy.
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c2.c | 1 +
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c3.c | 1 +
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c4.c | 1 +
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3 files changed, 3 insertions(+)
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create mode 100644 c2.c
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create mode 100644 c3.c
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create mode 100644 c4.c
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EOF
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test_expect_success 'merge output uses pretty names' '
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git reset --hard c1 &&
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git merge c2 c3 c4 >actual &&
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test_cmp actual expected
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'
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cat >expected <<\EOF
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Merge made by the 'recursive' strategy.
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c5.c | 1 +
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1 file changed, 1 insertion(+)
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create mode 100644 c5.c
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EOF
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test_expect_failure 'merge reduces irrelevant remote heads' '
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GIT_MERGE_VERBOSITY=0 git merge c4 c5 >actual &&
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test_cmp expected actual
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'
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cat >expected <<\EOF
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Fast-forwarding to: c1
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Trying simple merge with c2
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Merge made by the 'octopus' strategy.
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c1.c | 1 +
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c2.c | 1 +
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2 files changed, 2 insertions(+)
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create mode 100644 c1.c
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create mode 100644 c2.c
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EOF
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test_expect_success 'merge fast-forward output uses pretty names' '
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git reset --hard c0 &&
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git merge c1 c2 >actual &&
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test_cmp actual expected
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'
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test_done
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