git-commit-vandalism/t/t7106-reset-sequence.sh
Jonathan Nieder b15aa973b2 revert --abort: do not leave behind useless sequencer-old directory
The "git cherry-pick --abort" command currently renames the
.git/sequencer directory to .git/sequencer-old instead of removing it
on success due to an accident.  cherry-pick --abort is designed to
work in three steps:

 1) find which commit to roll back to
 2) call "git reset --merge <commit>" to move to that commit
 3) remove the .git/sequencer directory

But the careless author forgot step 3 entirely.  The only reason the
command worked anyway is that "git reset --merge <commit>" renames the
.git/sequencer directory as a secondary effect --- after moving to
<commit>, or so the logic goes, it is unlikely but possible that the
caller of git reset wants to continue the series of cherry-picks that
was in progress, so git renames the sequencer state to
.git/sequencer-old to be helpful while allowing the cherry-pick to be
resumed if the caller did not want to end the sequence after all.

By running "git cherry-pick --abort", the operator has clearly
indicated that she is not planning to continue cherry-picking.  Remove
the (renamed) .git/sequencer directory as intended all along.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-23 10:56:29 -08:00

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#!/bin/sh
test_description='Test interaction of reset --hard with sequencer
+ anotherpick: rewrites foo to d
+ picked: rewrites foo to c
+ unrelatedpick: rewrites unrelated to reallyunrelated
+ base: rewrites foo to b
+ initial: writes foo as a, unrelated as unrelated
'
. ./test-lib.sh
pristine_detach () {
git cherry-pick --quit &&
git checkout -f "$1^0" &&
git read-tree -u --reset HEAD &&
git clean -d -f -f -q -x
}
test_expect_success setup '
echo unrelated >unrelated &&
git add unrelated &&
test_commit initial foo a &&
test_commit base foo b &&
test_commit unrelatedpick unrelated reallyunrelated &&
test_commit picked foo c &&
test_commit anotherpick foo d &&
git config advice.detachedhead false
'
test_expect_success 'reset --hard cleans up sequencer state, providing one-level undo' '
pristine_detach initial &&
test_must_fail git cherry-pick base..anotherpick &&
test_path_is_dir .git/sequencer &&
git reset --hard &&
test_path_is_missing .git/sequencer &&
test_path_is_dir .git/sequencer-old &&
git reset --hard &&
test_path_is_missing .git/sequencer-old
'
test_expect_success 'cherry-pick --abort does not leave sequencer-old dir' '
pristine_detach initial &&
test_must_fail git cherry-pick base..anotherpick &&
git cherry-pick --abort &&
test_path_is_missing .git/sequencer &&
test_path_is_missing .git/sequencer-old
'
test_done