mirror of
https://github.com/git/git
synced 2024-10-30 04:01:21 +00:00
79f43447d2
Absent this fix, attempts to rebase an orphan branch using "rebase -m"
fails with:
$ git rebase -m ORPHAN_TARGET_BASE
First, rewinding head to replay your work on top of it...
fatal: Could not parse object 'ORPHAN_ROOT_SHA^'
Unknown exit code (128) from command: git-merge-recursive ORPHAN_ROOT_SHA^ -- HEAD ORPHAN_ROOT_SHA
To fix, this will only include the rebase root's parent as a base if it exists,
so that in cases of rebasing an orphan branch, it is a simple two-way merge.
Note the default rebase behavior does not fail:
$ git rebase ORPHAN_TARGET_BASE
First, rewinding head to replay your work on top of it...
Applying: ORPHAN_ROOT_COMMIT_MSG
Using index info to reconstruct a base tree...
A few tests were expecting the old behaviour to forbid rebasing such
a history with "rebase -m", which now need to expect them to succeed.
Signed-off-by: Ben Woosley <ben.woosley@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
350 lines
7.3 KiB
Bash
Executable file
350 lines
7.3 KiB
Bash
Executable file
#!/bin/sh
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test_description='basic rebase topology tests'
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/lib-rebase.sh
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# a---b---c
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# \
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# d---e
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test_expect_success 'setup' '
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test_commit a &&
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test_commit b &&
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test_commit c &&
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git checkout b &&
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test_commit d &&
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test_commit e
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'
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "simple rebase $*" "
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reset_rebase &&
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git rebase $* c e &&
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test_cmp_rev c HEAD~2 &&
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test_linear_range 'd e' c..
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* is no-op if upstream is an ancestor" "
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reset_rebase &&
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git rebase $* b e &&
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test_cmp_rev e HEAD
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* -f rewrites even if upstream is an ancestor" "
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reset_rebase &&
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git rebase $* -f b e &&
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! test_cmp_rev e HEAD &&
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test_cmp_rev b HEAD~2 &&
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test_linear_range 'd e' b..
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase failure -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* fast-forwards from ancestor of upstream" "
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reset_rebase &&
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git rebase $* e b &&
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test_cmp_rev e HEAD
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase success -p
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# f
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# /
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# a---b---c---g---h
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# \
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# d---gp--i
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#
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# gp = cherry-picked g
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# h = reverted g
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#
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# Reverted patches are there for tests to be able to check if a commit
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# that introduced the same change as another commit is
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# dropped. Without reverted commits, we could get false positives
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# because applying the patch succeeds, but simply results in no
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# changes.
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test_expect_success 'setup of linear history for range selection tests' '
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git checkout c &&
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test_commit g &&
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revert h g &&
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git checkout d &&
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cherry_pick gp g &&
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test_commit i &&
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git checkout b &&
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test_commit f
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'
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* drops patches in upstream" "
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reset_rebase &&
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git rebase $* h i &&
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test_cmp_rev h HEAD~2 &&
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test_linear_range 'd i' h..
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"
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}
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test_run_rebase success ''
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test_run_rebase failure -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* can drop last patch if in upstream" "
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reset_rebase &&
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git rebase $* h gp &&
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test_cmp_rev h HEAD^ &&
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test_linear_range 'd' h..
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"
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}
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test_run_rebase success ''
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test_run_rebase failure -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* --onto drops patches in upstream" "
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reset_rebase &&
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git rebase $* --onto f h i &&
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test_cmp_rev f HEAD~2 &&
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test_linear_range 'd i' f..
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"
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}
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test_run_rebase success ''
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test_run_rebase failure -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* --onto does not drop patches in onto" "
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reset_rebase &&
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git rebase $* --onto h f i &&
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test_cmp_rev h HEAD~3 &&
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test_linear_range 'd gp i' h..
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase success -p
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# a---b---c---j!
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# \
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# d---k!--l
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#
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# ! = empty
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test_expect_success 'setup of linear history for empty commit tests' '
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git checkout c &&
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make_empty j &&
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git checkout d &&
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make_empty k &&
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test_commit l
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'
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* drops empty commit" "
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reset_rebase &&
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git rebase $* c l &&
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test_cmp_rev c HEAD~2 &&
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test_linear_range 'd l' c..
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* --keep-empty" "
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reset_rebase &&
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git rebase $* --keep-empty c l &&
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test_cmp_rev c HEAD~3 &&
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test_linear_range 'd k l' c..
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"
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}
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test_run_rebase success ''
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test_run_rebase failure -m
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test_run_rebase success -i
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test_run_rebase failure -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* --keep-empty keeps empty even if already in upstream" "
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reset_rebase &&
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git rebase $* --keep-empty j l &&
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test_cmp_rev j HEAD~3 &&
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test_linear_range 'd k l' j..
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"
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}
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test_run_rebase success ''
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test_run_rebase failure -m
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test_run_rebase failure -i
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test_run_rebase failure -p
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# m
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# /
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# a---b---c---g
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#
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# x---y---bp
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#
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# bp = cherry-picked b
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# m = reverted b
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#
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# Reverted patches are there for tests to be able to check if a commit
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# that introduced the same change as another commit is
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# dropped. Without reverted commits, we could get false positives
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# because applying the patch succeeds, but simply results in no
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# changes.
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test_expect_success 'setup of linear history for test involving root' '
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git checkout b &&
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revert m b &&
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git checkout --orphan disjoint &&
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git rm -rf . &&
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test_commit x &&
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test_commit y &&
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cherry_pick bp b
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'
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* --onto --root" "
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reset_rebase &&
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git rebase $* --onto c --root y &&
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test_cmp_rev c HEAD~2 &&
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test_linear_range 'x y' c..
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* without --onto --root with disjoint history" "
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reset_rebase &&
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git rebase $* c y &&
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test_cmp_rev c HEAD~2 &&
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test_linear_range 'x y' c..
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase failure -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* --onto --root drops patch in onto" "
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reset_rebase &&
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git rebase $* --onto m --root bp &&
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test_cmp_rev m HEAD~2 &&
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test_linear_range 'x y' m..
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"
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}
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test_run_rebase success ''
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test_run_rebase failure -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* --onto --root with merge-base does not go to root" "
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reset_rebase &&
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git rebase $* --onto m --root g &&
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test_cmp_rev m HEAD~2 &&
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test_linear_range 'c g' m..
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase failure -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* without --onto --root with disjoint history drops patch in onto" "
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reset_rebase &&
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git rebase $* m bp &&
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test_cmp_rev m HEAD~2 &&
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test_linear_range 'x y' m..
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"
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}
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test_run_rebase success ''
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test_run_rebase failure -m
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test_run_rebase success -i
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test_run_rebase failure -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* --root on linear history is a no-op" "
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reset_rebase &&
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git rebase $* --root c &&
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test_cmp_rev c HEAD
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"
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}
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test_run_rebase failure ''
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test_run_rebase failure -m
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test_run_rebase failure -i
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test_run_rebase failure -p
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test_run_rebase () {
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result=$1
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shift
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test_expect_$result "rebase $* -f --root on linear history causes re-write" "
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reset_rebase &&
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git rebase $* -f --root c &&
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! test_cmp_rev a HEAD~2 &&
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test_linear_range 'a b c' HEAD
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"
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}
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test_run_rebase success ''
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test_run_rebase success -m
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test_run_rebase success -i
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test_run_rebase success -p
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test_done
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