1308c17b3e
Consider this history:
o--o-...-B <- origin
\ \
x--x--M--x--x <- master
In this situation, rebase considers master fully up-to-date and would
not do anything. However, if there were additional commits on origin,
the rebase would run and move the commits x on top of origin.
Here we change rebase to short-circuit out only if the history since origin
is strictly linear. Consequently, the above as well as a history like this
would be linearized:
o--o <- origin
\
x--x
\ \
x--M--x--x <- master
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
72 lines
1.9 KiB
Bash
Executable File
72 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2005 Amos Waterland
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#
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test_description='git rebase should not destroy author information
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This test runs git rebase and checks that the author information is not lost.
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'
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. ./test-lib.sh
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export GIT_AUTHOR_EMAIL=bogus_email_address
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test_expect_success \
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'prepare repository with topic branches' \
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'echo First > A &&
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git update-index --add A &&
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git-commit -m "Add A." &&
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git checkout -b my-topic-branch &&
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echo Second > B &&
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git update-index --add B &&
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git-commit -m "Add B." &&
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git checkout -f master &&
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echo Third >> A &&
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git update-index A &&
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git-commit -m "Modify A." &&
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git checkout -b side my-topic-branch &&
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echo Side >> C &&
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git add C &&
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git commit -m "Add C" &&
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git checkout -b nonlinear my-topic-branch &&
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echo Edit >> B &&
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git add B &&
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git commit -m "Modify B" &&
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git merge side &&
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git checkout -b upstream-merged-nonlinear &&
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git merge master &&
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git checkout -f my-topic-branch &&
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git tag topic
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'
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test_expect_success 'rebase against master' '
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git rebase master'
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test_expect_failure \
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'the rebase operation should not have destroyed author information' \
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'git log | grep "Author:" | grep "<>"'
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test_expect_success 'rebase after merge master' '
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git reset --hard topic &&
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git merge master &&
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git rebase master &&
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! git show | grep "^Merge:"
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'
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test_expect_success 'rebase of history with merges is linearized' '
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git checkout nonlinear &&
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test 4 = $(git rev-list master.. | wc -l) &&
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git rebase master &&
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test 3 = $(git rev-list master.. | wc -l)
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'
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test_expect_success \
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'rebase of history with merges after upstream merge is linearized' '
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git checkout upstream-merged-nonlinear &&
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test 5 = $(git rev-list master.. | wc -l) &&
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git rebase master &&
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test 3 = $(git rev-list master.. | wc -l)
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'
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test_done
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