When no arguments are specified, $switch_to is empty so we end up
passing the empty string to "git merge-base --fork-point", which causes
an error. git-rebase carries on at this point, but in fact we have
failed to apply the fork-point operation.
It turns out that the test in t3400 that was meant to test this didn't
actually need the fork-point behaviour, so enhance it to make sure that
the fork-point is applied correctly. The modified test fails without
the change to git-rebase.sh in this patch.
Reported-by: Andreas Krey <a.krey@xxxxxx>
Signed-off-by: John Keeping <john@xxxxxxxxxxxxx>
---
git-rebase.sh | 3 ++-
t/t3400-rebase.sh | 12 ++++++++++--
2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/git-rebase.sh b/git-rebase.sh
index 7185dc8..8a3efa2 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -534,7 +534,8 @@ esac
if test "$fork_point" = t
then
- new_upstream=$(git merge-base --fork-point "$upstream_name" "$switch_to")
+ new_upstream=$(git merge-base --fork-point "$upstream_name" \
+ "${switch_to:-HEAD}")
if test -n "$new_upstream"
then
upstream=$new_upstream
diff --git a/t/t3400-rebase.sh b/t/t3400-rebase.sh
index 998503d..6d94b1f 100755
--- a/t/t3400-rebase.sh
+++ b/t/t3400-rebase.sh
@@ -135,11 +135,19 @@ test_expect_success 'fail when upstream arg is missing and not configured' '
'
test_expect_success 'default to common base in @{upstream}s reflog if no upstream arg' '
+ git checkout -b default-base master &&
git checkout -b default topic &&
git config branch.default.remote . &&
- git config branch.default.merge refs/heads/master &&
+ git config branch.default.merge refs/heads/default-base &&
git rebase &&
- git rev-parse --verify master >expect &&
+ git rev-parse --verify default-base >expect &&
+ git rev-parse default~1 >actual &&
+ test_cmp expect actual &&
+ git checkout default-base &&
+ git reset --hard HEAD^ &&
+ git checkout default &&
+ git rebase &&
+ git rev-parse --verify default-base >expect &&
git rev-parse default~1 >actual &&
test_cmp expect actual
'
--
1.8.5.226.g0d60d77
--
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