git/t/t3507-cherry-pick-conflict.sh
Junio C Hamano b51a0fdc38 Merge branch 'pw/clean-sequencer-state-upon-final-commit'
"git chery-pick" (and "revert" that shares the same runtime engine)
that deals with multiple commits got confused when the final step
gets stopped with a conflict and the user concluded the sequence
with "git commit".  Attempt to fix it by cleaning up the state
files used by these commands in such a situation.

* pw/clean-sequencer-state-upon-final-commit:
  fix cherry-pick/revert status after commit
  commit/reset: try to clean up sequencer state
2019-05-13 23:50:35 +09:00

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#!/bin/sh
test_description='test cherry-pick and revert with conflicts
-
+ picked: rewrites foo to c
+ base: rewrites foo to b
+ initial: writes foo as a, unrelated as unrelated
'
. ./test-lib.sh
pristine_detach () {
git checkout -f "$1^0" &&
git read-tree -u --reset HEAD &&
git clean -d -f -f -q -x
}
test_expect_success setup '
echo unrelated >unrelated &&
git add unrelated &&
test_commit initial foo a &&
test_commit base foo b &&
test_commit picked foo c &&
test_commit --signoff picked-signed foo d &&
git checkout -b topic initial &&
test_commit redundant-pick foo c redundant &&
git commit --allow-empty --allow-empty-message &&
git tag empty &&
git checkout master &&
git config advice.detachedhead false
'
test_expect_success 'failed cherry-pick does not advance HEAD' '
pristine_detach initial &&
head=$(git rev-parse HEAD) &&
test_must_fail git cherry-pick picked &&
newhead=$(git rev-parse HEAD) &&
test "$head" = "$newhead"
'
test_expect_success 'advice from failed cherry-pick' "
pristine_detach initial &&
picked=\$(git rev-parse --short picked) &&
cat <<-EOF >expected &&
error: could not apply \$picked... picked
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add <paths>' or 'git rm <paths>'
hint: and commit the result with 'git commit'
EOF
test_must_fail git cherry-pick picked 2>actual &&
test_i18ncmp expected actual
"
test_expect_success 'advice from failed cherry-pick --no-commit' "
pristine_detach initial &&
picked=\$(git rev-parse --short picked) &&
cat <<-EOF >expected &&
error: could not apply \$picked... picked
hint: after resolving the conflicts, mark the corrected paths
hint: with 'git add <paths>' or 'git rm <paths>'
EOF
test_must_fail git cherry-pick --no-commit picked 2>actual &&
test_i18ncmp expected actual
"
test_expect_success 'failed cherry-pick sets CHERRY_PICK_HEAD' '
pristine_detach initial &&
test_must_fail git cherry-pick picked &&
test_cmp_rev picked CHERRY_PICK_HEAD
'
test_expect_success 'successful cherry-pick does not set CHERRY_PICK_HEAD' '
pristine_detach initial &&
git cherry-pick base &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
'
test_expect_success 'cherry-pick --no-commit does not set CHERRY_PICK_HEAD' '
pristine_detach initial &&
git cherry-pick --no-commit base &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
'
test_expect_success 'cherry-pick w/dirty tree does not set CHERRY_PICK_HEAD' '
pristine_detach initial &&
echo foo >foo &&
test_must_fail git cherry-pick base &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
'
test_expect_success \
'cherry-pick --strategy=resolve w/dirty tree does not set CHERRY_PICK_HEAD' '
pristine_detach initial &&
echo foo >foo &&
test_must_fail git cherry-pick --strategy=resolve base &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
'
test_expect_success 'GIT_CHERRY_PICK_HELP suppresses CHERRY_PICK_HEAD' '
pristine_detach initial &&
(
GIT_CHERRY_PICK_HELP="and then do something else" &&
export GIT_CHERRY_PICK_HELP &&
test_must_fail git cherry-pick picked
) &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
'
test_expect_success 'git reset clears CHERRY_PICK_HEAD' '
pristine_detach initial &&
test_must_fail git cherry-pick picked &&
git reset &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
'
test_expect_success 'failed commit does not clear CHERRY_PICK_HEAD' '
pristine_detach initial &&
test_must_fail git cherry-pick picked &&
test_must_fail git commit &&
test_cmp_rev picked CHERRY_PICK_HEAD
'
test_expect_success 'cancelled commit does not clear CHERRY_PICK_HEAD' '
pristine_detach initial &&
test_must_fail git cherry-pick picked &&
echo resolved >foo &&
git add foo &&
git update-index --refresh -q &&
test_must_fail git diff-index --exit-code HEAD &&
(
GIT_EDITOR=false &&
export GIT_EDITOR &&
test_must_fail git commit
) &&
test_cmp_rev picked CHERRY_PICK_HEAD
'
test_expect_success 'successful commit clears CHERRY_PICK_HEAD' '
pristine_detach initial &&
test_must_fail git cherry-pick picked &&
echo resolved >foo &&
git add foo &&
git commit &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD
'
test_expect_success 'successful final commit clears cherry-pick state' '
pristine_detach initial &&
test_must_fail git cherry-pick base picked-signed &&
echo resolved >foo &&
test_path_is_file .git/sequencer/todo &&
git commit -a &&
test_must_fail test_path_exists .git/sequencer
'
test_expect_success 'reset after final pick clears cherry-pick state' '
pristine_detach initial &&
test_must_fail git cherry-pick base picked-signed &&
echo resolved >foo &&
test_path_is_file .git/sequencer/todo &&
git reset &&
test_must_fail test_path_exists .git/sequencer
'
test_expect_success 'failed cherry-pick produces dirty index' '
pristine_detach initial &&
test_must_fail git cherry-pick picked &&
test_must_fail git update-index --refresh -q &&
test_must_fail git diff-index --exit-code HEAD
'
test_expect_success 'failed cherry-pick registers participants in index' '
pristine_detach initial &&
{
git checkout base -- foo &&
git ls-files --stage foo &&
git checkout initial -- foo &&
git ls-files --stage foo &&
git checkout picked -- foo &&
git ls-files --stage foo
} >stages &&
sed "
1 s/ 0 / 1 /
2 s/ 0 / 2 /
3 s/ 0 / 3 /
" stages >expected &&
git read-tree -u --reset HEAD &&
test_must_fail git cherry-pick picked &&
git ls-files --stage --unmerged >actual &&
test_cmp expected actual
'
test_expect_success \
'cherry-pick conflict, ensure commit.cleanup = scissors places scissors line properly' '
pristine_detach initial &&
git config commit.cleanup scissors &&
cat <<-EOF >expected &&
picked
# ------------------------ >8 ------------------------
# Do not modify or remove the line above.
# Everything below it will be ignored.
#
# Conflicts:
# foo
EOF
test_must_fail git cherry-pick picked &&
test_i18ncmp expected .git/MERGE_MSG
'
test_expect_success \
'cherry-pick conflict, ensure cleanup=scissors places scissors line properly' '
pristine_detach initial &&
git config --unset commit.cleanup &&
cat <<-EOF >expected &&
picked
# ------------------------ >8 ------------------------
# Do not modify or remove the line above.
# Everything below it will be ignored.
#
# Conflicts:
# foo
EOF
test_must_fail git cherry-pick --cleanup=scissors picked &&
test_i18ncmp expected .git/MERGE_MSG
'
test_expect_success 'failed cherry-pick describes conflict in work tree' '
pristine_detach initial &&
cat <<-EOF >expected &&
<<<<<<< HEAD
a
=======
c
>>>>>>> objid picked
EOF
test_must_fail git cherry-pick picked &&
sed "s/[a-f0-9]*\.\.\./objid/" foo >actual &&
test_cmp expected actual
'
test_expect_success 'diff3 -m style' '
pristine_detach initial &&
git config merge.conflictstyle diff3 &&
cat <<-EOF >expected &&
<<<<<<< HEAD
a
||||||| parent of objid picked
b
=======
c
>>>>>>> objid picked
EOF
test_must_fail git cherry-pick picked &&
sed "s/[a-f0-9]*\.\.\./objid/" foo >actual &&
test_cmp expected actual
'
test_expect_success 'revert also handles conflicts sanely' '
git config --unset merge.conflictstyle &&
pristine_detach initial &&
cat <<-EOF >expected &&
<<<<<<< HEAD
a
=======
b
>>>>>>> parent of objid picked
EOF
{
git checkout picked -- foo &&
git ls-files --stage foo &&
git checkout initial -- foo &&
git ls-files --stage foo &&
git checkout base -- foo &&
git ls-files --stage foo
} >stages &&
sed "
1 s/ 0 / 1 /
2 s/ 0 / 2 /
3 s/ 0 / 3 /
" stages >expected-stages &&
git read-tree -u --reset HEAD &&
head=$(git rev-parse HEAD) &&
test_must_fail git revert picked &&
newhead=$(git rev-parse HEAD) &&
git ls-files --stage --unmerged >actual-stages &&
test "$head" = "$newhead" &&
test_must_fail git update-index --refresh -q &&
test_must_fail git diff-index --exit-code HEAD &&
test_cmp expected-stages actual-stages &&
sed "s/[a-f0-9]*\.\.\./objid/" foo >actual &&
test_cmp expected actual
'
test_expect_success 'failed revert sets REVERT_HEAD' '
pristine_detach initial &&
test_must_fail git revert picked &&
test_cmp_rev picked REVERT_HEAD
'
test_expect_success 'successful revert does not set REVERT_HEAD' '
pristine_detach base &&
git revert base &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
test_must_fail git rev-parse --verify REVERT_HEAD
'
test_expect_success 'revert --no-commit sets REVERT_HEAD' '
pristine_detach base &&
git revert --no-commit base &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
test_cmp_rev base REVERT_HEAD
'
test_expect_success 'revert w/dirty tree does not set REVERT_HEAD' '
pristine_detach base &&
echo foo >foo &&
test_must_fail git revert base &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
test_must_fail git rev-parse --verify REVERT_HEAD
'
test_expect_success 'GIT_CHERRY_PICK_HELP does not suppress REVERT_HEAD' '
pristine_detach initial &&
(
GIT_CHERRY_PICK_HELP="and then do something else" &&
GIT_REVERT_HELP="and then do something else, again" &&
export GIT_CHERRY_PICK_HELP GIT_REVERT_HELP &&
test_must_fail git revert picked
) &&
test_must_fail git rev-parse --verify CHERRY_PICK_HEAD &&
test_cmp_rev picked REVERT_HEAD
'
test_expect_success 'git reset clears REVERT_HEAD' '
pristine_detach initial &&
test_must_fail git revert picked &&
git reset &&
test_must_fail git rev-parse --verify REVERT_HEAD
'
test_expect_success 'failed commit does not clear REVERT_HEAD' '
pristine_detach initial &&
test_must_fail git revert picked &&
test_must_fail git commit &&
test_cmp_rev picked REVERT_HEAD
'
test_expect_success 'successful final commit clears revert state' '
pristine_detach picked-signed &&
test_must_fail git revert picked-signed base &&
echo resolved >foo &&
test_path_is_file .git/sequencer/todo &&
git commit -a &&
test_must_fail test_path_exists .git/sequencer
'
test_expect_success 'reset after final pick clears revert state' '
pristine_detach picked-signed &&
test_must_fail git revert picked-signed base &&
echo resolved >foo &&
test_path_is_file .git/sequencer/todo &&
git reset &&
test_must_fail test_path_exists .git/sequencer
'
test_expect_success 'revert conflict, diff3 -m style' '
pristine_detach initial &&
git config merge.conflictstyle diff3 &&
cat <<-EOF >expected &&
<<<<<<< HEAD
a
||||||| objid picked
c
=======
b
>>>>>>> parent of objid picked
EOF
test_must_fail git revert picked &&
sed "s/[a-f0-9]*\.\.\./objid/" foo >actual &&
test_cmp expected actual
'
test_expect_success \
'revert conflict, ensure commit.cleanup = scissors places scissors line properly' '
pristine_detach initial &&
git config commit.cleanup scissors &&
cat >expected <<-EOF &&
Revert "picked"
This reverts commit OBJID.
# ------------------------ >8 ------------------------
# Do not modify or remove the line above.
# Everything below it will be ignored.
#
# Conflicts:
# foo
EOF
test_must_fail git revert picked &&
sed "s/$OID_REGEX/OBJID/" .git/MERGE_MSG >actual &&
test_i18ncmp expected actual
'
test_expect_success \
'revert conflict, ensure cleanup=scissors places scissors line properly' '
pristine_detach initial &&
git config --unset commit.cleanup &&
cat >expected <<-EOF &&
Revert "picked"
This reverts commit OBJID.
# ------------------------ >8 ------------------------
# Do not modify or remove the line above.
# Everything below it will be ignored.
#
# Conflicts:
# foo
EOF
test_must_fail git revert --cleanup=scissors picked &&
sed "s/$OID_REGEX/OBJID/" .git/MERGE_MSG >actual &&
test_i18ncmp expected actual
'
test_expect_success 'failed cherry-pick does not forget -s' '
pristine_detach initial &&
test_must_fail git cherry-pick -s picked &&
test_i18ngrep -e "Signed-off-by" .git/MERGE_MSG
'
test_expect_success 'commit after failed cherry-pick does not add duplicated -s' '
pristine_detach initial &&
test_must_fail git cherry-pick -s picked-signed &&
git commit -a -s &&
test $(git show -s >tmp && grep -c "Signed-off-by" tmp && rm tmp) = 1
'
test_expect_success 'commit after failed cherry-pick adds -s at the right place' '
pristine_detach initial &&
test_must_fail git cherry-pick picked &&
git commit -a -s &&
# Do S-o-b and Conflicts appear in the right order?
cat <<-\EOF >expect &&
Signed-off-by: C O Mitter <committer@example.com>
# Conflicts:
EOF
grep -e "^# Conflicts:" -e '^Signed-off-by' .git/COMMIT_EDITMSG >actual &&
test_cmp expect actual &&
cat <<-\EOF >expected &&
picked
Signed-off-by: C O Mitter <committer@example.com>
EOF
git show -s --pretty=format:%B >actual &&
test_cmp expected actual
'
test_expect_success 'commit --amend -s places the sign-off at the right place' '
pristine_detach initial &&
test_must_fail git cherry-pick picked &&
# emulate old-style conflicts block
mv .git/MERGE_MSG .git/MERGE_MSG+ &&
sed -e "/^# Conflicts:/,\$s/^# *//" .git/MERGE_MSG+ >.git/MERGE_MSG &&
git commit -a &&
git commit --amend -s &&
# Do S-o-b and Conflicts appear in the right order?
cat <<-\EOF >expect &&
Signed-off-by: C O Mitter <committer@example.com>
Conflicts:
EOF
grep -e "^Conflicts:" -e '^Signed-off-by' .git/COMMIT_EDITMSG >actual &&
test_cmp expect actual
'
test_expect_success 'cherry-pick preserves sparse-checkout' '
pristine_detach initial &&
test_config core.sparseCheckout true &&
test_when_finished "
echo \"/*\" >.git/info/sparse-checkout
git read-tree --reset -u HEAD
rm .git/info/sparse-checkout" &&
echo /unrelated >.git/info/sparse-checkout &&
git read-tree --reset -u HEAD &&
test_must_fail git cherry-pick -Xours picked>actual &&
test_i18ngrep ! "Changes not staged for commit:" actual
'
test_expect_success 'cherry-pick --continue remembers --keep-redundant-commits' '
test_when_finished "git cherry-pick --abort || :" &&
pristine_detach initial &&
test_must_fail git cherry-pick --keep-redundant-commits picked redundant &&
echo c >foo &&
git add foo &&
git cherry-pick --continue
'
test_expect_success 'cherry-pick --continue remembers --allow-empty and --allow-empty-message' '
test_when_finished "git cherry-pick --abort || :" &&
pristine_detach initial &&
test_must_fail git cherry-pick --allow-empty --allow-empty-message \
picked empty &&
echo c >foo &&
git add foo &&
git cherry-pick --continue
'
test_done