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rebase -i: fix squashing corner case

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When squashing, rebase -i did not prevent fast forwards.  This could
happen when picking some other commit than the first one, and then
squashing the first commit.  So do not allow fast forwards when
squashing.

Noticed by Johannes Sixt.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2007-08-23 09:55:41 +01:00 committed by Junio C Hamano
parent 191131e538
commit 1d25c8cf82
2 changed files with 24 additions and 2 deletions
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5
git-rebase--interactive.sh
View File

@ -96,13 +96,14 @@ die_abort () {
}
pick_one () {
case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac
no_ff=
case "$1" in -n) sha1=$2; no_ff=t ;; *) sha1=$1 ;; esac
output git rev-parse --verify $sha1 || die "Invalid commit name: $sha1"
test -d "$REWRITTEN" &&
pick_one_preserving_merges "$@" && return
parent_sha1=$(git rev-parse --verify $sha1^ 2>/dev/null)
current_sha1=$(git rev-parse --verify HEAD)
if test $current_sha1 = $parent_sha1; then
if test $no_ff$current_sha1 = $parent_sha1; then
output git reset --hard $sha1
test "a$1" = a-n && output git reset --soft $current_sha1
sha1=$(git rev-parse --short $sha1)

21
t/t3404-rebase-interactive.sh
View File

@ -264,6 +264,27 @@ test_expect_success 'interrupted squash works as expected' '
test $one = $(git rev-parse HEAD~2)
'
test_expect_success 'interrupted squash works as expected (case 2)' '
for n in one two three four
do
echo $n >> conflict &&
git add conflict &&
git commit -m $n
done &&
one=$(git rev-parse HEAD~3) &&
! FAKE_LINES="3 squash 1 2" git rebase -i HEAD~3 &&
(echo one; echo four) > conflict &&
git add conflict &&
! git rebase --continue &&
(echo one; echo two; echo four) > conflict &&
git add conflict &&
! git rebase --continue &&
echo resolved > conflict &&
git add conflict &&
git rebase --continue &&
test $one = $(git rev-parse HEAD~2)
'
test_expect_success 'ignore patch if in upstream' '
HEAD=$(git rev-parse HEAD) &&
git checkout -b has-cherry-picked HEAD^ &&