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https://github.com/git/git.git
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66713ef3b0
If a user is working on master, and has merged in their feature branch, but now has to "git pull" because master moved, with pull.rebase their feature branch will be flattened into master. This is because "git pull" currently does not know about rebase's preserve merges flag, which would avoid this behavior, as it would instead replay just the merge commit of the feature branch onto the new master, and not replay each individual commit in the feature branch. Add a --rebase=preserve option, which will pass along --preserve-merges to rebase. Also add 'preserve' to the allowed values for the pull.rebase config setting. Signed-off-by: Stephen Haberman <stephen@exigencecorp.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
376 lines
9.8 KiB
Bash
Executable file
376 lines
9.8 KiB
Bash
Executable file
#!/bin/sh
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test_description='pulling into void'
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. ./test-lib.sh
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modify () {
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sed -e "$1" <"$2" >"$2.x" &&
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mv "$2.x" "$2"
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}
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D=`pwd`
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test_expect_success setup '
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echo file >file &&
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git add file &&
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git commit -a -m original
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'
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test_expect_success 'pulling into void' '
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mkdir cloned &&
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cd cloned &&
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git init &&
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git pull ..
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'
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cd "$D"
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test_expect_success 'checking the results' '
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test -f file &&
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test -f cloned/file &&
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test_cmp file cloned/file
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'
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test_expect_success 'pulling into void using master:master' '
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mkdir cloned-uho &&
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(
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cd cloned-uho &&
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git init &&
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git pull .. master:master
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) &&
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test -f file &&
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test -f cloned-uho/file &&
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test_cmp file cloned-uho/file
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'
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test_expect_success 'pulling into void does not overwrite untracked files' '
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git init cloned-untracked &&
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(
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cd cloned-untracked &&
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echo untracked >file &&
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test_must_fail git pull .. master &&
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echo untracked >expect &&
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test_cmp expect file
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)
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'
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test_expect_success 'pulling into void does not overwrite staged files' '
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git init cloned-staged-colliding &&
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(
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cd cloned-staged-colliding &&
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echo "alternate content" >file &&
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git add file &&
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test_must_fail git pull .. master &&
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echo "alternate content" >expect &&
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test_cmp expect file &&
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git cat-file blob :file >file.index &&
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test_cmp expect file.index
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)
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'
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test_expect_success 'pulling into void does not remove new staged files' '
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git init cloned-staged-new &&
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(
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cd cloned-staged-new &&
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echo "new tracked file" >newfile &&
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git add newfile &&
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git pull .. master &&
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echo "new tracked file" >expect &&
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test_cmp expect newfile &&
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git cat-file blob :newfile >newfile.index &&
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test_cmp expect newfile.index
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)
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'
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test_expect_success 'test . as a remote' '
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git branch copy master &&
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git config branch.copy.remote . &&
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git config branch.copy.merge refs/heads/master &&
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echo updated >file &&
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git commit -a -m updated &&
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git checkout copy &&
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test `cat file` = file &&
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git pull &&
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test `cat file` = updated
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'
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test_expect_success 'the default remote . should not break explicit pull' '
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git checkout -b second master^ &&
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echo modified >file &&
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git commit -a -m modified &&
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git checkout copy &&
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git reset --hard HEAD^ &&
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test `cat file` = file &&
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git pull . second &&
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test `cat file` = modified
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'
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test_expect_success '--rebase' '
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git branch to-rebase &&
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echo modified again > file &&
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git commit -m file file &&
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git checkout to-rebase &&
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echo new > file2 &&
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git add file2 &&
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git commit -m "new file" &&
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git tag before-rebase &&
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git pull --rebase . copy &&
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test $(git rev-parse HEAD^) = $(git rev-parse copy) &&
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test new = $(git show HEAD:file2)
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'
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test_expect_success 'pull.rebase' '
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git reset --hard before-rebase &&
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test_config pull.rebase true &&
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git pull . copy &&
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test $(git rev-parse HEAD^) = $(git rev-parse copy) &&
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test new = $(git show HEAD:file2)
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'
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test_expect_success 'branch.to-rebase.rebase' '
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git reset --hard before-rebase &&
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test_config branch.to-rebase.rebase true &&
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git pull . copy &&
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test $(git rev-parse HEAD^) = $(git rev-parse copy) &&
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test new = $(git show HEAD:file2)
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'
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test_expect_success 'branch.to-rebase.rebase should override pull.rebase' '
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git reset --hard before-rebase &&
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test_config pull.rebase true &&
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test_config branch.to-rebase.rebase false &&
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git pull . copy &&
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test $(git rev-parse HEAD^) != $(git rev-parse copy) &&
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test new = $(git show HEAD:file2)
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'
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# add a feature branch, keep-merge, that is merged into master, so the
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# test can try preserving the merge commit (or not) with various
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# --rebase flags/pull.rebase settings.
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test_expect_success 'preserve merge setup' '
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git reset --hard before-rebase &&
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git checkout -b keep-merge second^ &&
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test_commit file3 &&
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git checkout to-rebase &&
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git merge keep-merge &&
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git tag before-preserve-rebase
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'
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test_expect_success 'pull.rebase=false create a new merge commit' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase false &&
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git pull . copy &&
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test $(git rev-parse HEAD^1) = $(git rev-parse before-preserve-rebase) &&
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test $(git rev-parse HEAD^2) = $(git rev-parse copy) &&
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test file3 = $(git show HEAD:file3.t)
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'
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test_expect_success 'pull.rebase=true flattens keep-merge' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase true &&
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git pull . copy &&
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test $(git rev-parse HEAD^^) = $(git rev-parse copy) &&
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test file3 = $(git show HEAD:file3.t)
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'
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test_expect_success 'pull.rebase=1 is treated as true and flattens keep-merge' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase 1 &&
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git pull . copy &&
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test $(git rev-parse HEAD^^) = $(git rev-parse copy) &&
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test file3 = $(git show HEAD:file3.t)
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'
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test_expect_success 'pull.rebase=preserve rebases and merges keep-merge' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase preserve &&
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git pull . copy &&
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test $(git rev-parse HEAD^^) = $(git rev-parse copy) &&
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test $(git rev-parse HEAD^2) = $(git rev-parse keep-merge)
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'
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test_expect_success 'pull.rebase=invalid fails' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase invalid &&
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! git pull . copy
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'
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test_expect_success '--rebase=false create a new merge commit' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase true &&
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git pull --rebase=false . copy &&
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test $(git rev-parse HEAD^1) = $(git rev-parse before-preserve-rebase) &&
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test $(git rev-parse HEAD^2) = $(git rev-parse copy) &&
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test file3 = $(git show HEAD:file3.t)
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'
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test_expect_success '--rebase=true rebases and flattens keep-merge' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase preserve &&
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git pull --rebase=true . copy &&
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test $(git rev-parse HEAD^^) = $(git rev-parse copy) &&
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test file3 = $(git show HEAD:file3.t)
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'
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test_expect_success '--rebase=preserve rebases and merges keep-merge' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase true &&
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git pull --rebase=preserve . copy &&
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test $(git rev-parse HEAD^^) = $(git rev-parse copy) &&
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test $(git rev-parse HEAD^2) = $(git rev-parse keep-merge)
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'
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test_expect_success '--rebase=invalid fails' '
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git reset --hard before-preserve-rebase &&
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! git pull --rebase=invalid . copy
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'
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test_expect_success '--rebase overrides pull.rebase=preserve and flattens keep-merge' '
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git reset --hard before-preserve-rebase &&
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test_config pull.rebase preserve &&
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git pull --rebase . copy &&
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test $(git rev-parse HEAD^^) = $(git rev-parse copy) &&
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test file3 = $(git show HEAD:file3.t)
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'
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test_expect_success '--rebase with rebased upstream' '
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git remote add -f me . &&
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git checkout copy &&
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git tag copy-orig &&
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git reset --hard HEAD^ &&
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echo conflicting modification > file &&
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git commit -m conflict file &&
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git checkout to-rebase &&
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echo file > file2 &&
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git commit -m to-rebase file2 &&
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git tag to-rebase-orig &&
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git pull --rebase me copy &&
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test "conflicting modification" = "$(cat file)" &&
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test file = $(cat file2)
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'
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test_expect_success '--rebase with rebased default upstream' '
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git update-ref refs/remotes/me/copy copy-orig &&
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git checkout --track -b to-rebase2 me/copy &&
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git reset --hard to-rebase-orig &&
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git pull --rebase &&
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test "conflicting modification" = "$(cat file)" &&
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test file = $(cat file2)
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'
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test_expect_success 'rebased upstream + fetch + pull --rebase' '
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git update-ref refs/remotes/me/copy copy-orig &&
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git reset --hard to-rebase-orig &&
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git checkout --track -b to-rebase3 me/copy &&
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git reset --hard to-rebase-orig &&
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git fetch &&
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git pull --rebase &&
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test "conflicting modification" = "$(cat file)" &&
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test file = "$(cat file2)"
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'
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test_expect_success 'pull --rebase dies early with dirty working directory' '
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git checkout to-rebase &&
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git update-ref refs/remotes/me/copy copy^ &&
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COPY=$(git rev-parse --verify me/copy) &&
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git rebase --onto $COPY copy &&
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test_config branch.to-rebase.remote me &&
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test_config branch.to-rebase.merge refs/heads/copy &&
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test_config branch.to-rebase.rebase true &&
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echo dirty >> file &&
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git add file &&
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test_must_fail git pull &&
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test $COPY = $(git rev-parse --verify me/copy) &&
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git checkout HEAD -- file &&
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git pull &&
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test $COPY != $(git rev-parse --verify me/copy)
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'
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test_expect_success 'pull --rebase works on branch yet to be born' '
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git rev-parse master >expect &&
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mkdir empty_repo &&
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(cd empty_repo &&
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git init &&
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git pull --rebase .. master &&
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git rev-parse HEAD >../actual
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) &&
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test_cmp expect actual
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'
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test_expect_success 'setup for detecting upstreamed changes' '
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mkdir src &&
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(cd src &&
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git init &&
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printf "1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n" > stuff &&
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git add stuff &&
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git commit -m "Initial revision"
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) &&
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git clone src dst &&
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(cd src &&
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modify s/5/43/ stuff &&
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git commit -a -m "5->43" &&
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modify s/6/42/ stuff &&
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git commit -a -m "Make it bigger"
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) &&
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(cd dst &&
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modify s/5/43/ stuff &&
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git commit -a -m "Independent discovery of 5->43"
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)
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'
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test_expect_success 'git pull --rebase detects upstreamed changes' '
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(cd dst &&
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git pull --rebase &&
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test -z "$(git ls-files -u)"
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)
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'
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test_expect_success 'setup for avoiding reapplying old patches' '
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(cd dst &&
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test_might_fail git rebase --abort &&
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git reset --hard origin/master
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) &&
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git clone --bare src src-replace.git &&
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rm -rf src &&
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mv src-replace.git src &&
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(cd dst &&
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modify s/2/22/ stuff &&
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git commit -a -m "Change 2" &&
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modify s/3/33/ stuff &&
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git commit -a -m "Change 3" &&
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modify s/4/44/ stuff &&
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git commit -a -m "Change 4" &&
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git push &&
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modify s/44/55/ stuff &&
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git commit --amend -a -m "Modified Change 4"
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)
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'
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test_expect_success 'git pull --rebase does not reapply old patches' '
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(cd dst &&
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test_must_fail git pull --rebase &&
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test 1 = $(find .git/rebase-apply -name "000*" | wc -l)
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)
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'
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test_expect_success 'git pull --rebase against local branch' '
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git checkout -b copy2 to-rebase-orig &&
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git pull --rebase . to-rebase &&
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test "conflicting modification" = "$(cat file)" &&
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test file = "$(cat file2)"
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'
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test_done
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