path: root/t/
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authorJunio C Hamano <>2017-09-22 03:24:50 (GMT)
committerJunio C Hamano <>2017-09-23 23:42:12 (GMT)
commite5435ff1fc64d93cce73ec4ee2571219384a92a9 (patch)
tree5251a141e243c41eac971ca335e0e84aab9457d7 /t/
parent52d59cc6452ed1aeec91f4c168a853ea8d9d5496 (diff)
branch: fix "copy" to never touch HEAD
When creating a new branch B by copying the branch A that happens to be the current branch, it also updates HEAD to point at the new branch. It probably was made this way because "git branch -c A B" piggybacked its implementation on "git branch -m A B", This does not match the usual expectation. If I were sitting on a blue chair, and somebody comes and repaints it to red, I would accept ending up sitting on a chair that is now red (I am also OK to stand, instead, as there no longer is my favourite blue chair). But if somebody creates a new red chair, modelling it after the blue chair I am sitting on, I do not expect to be booted off of the blue chair and ending up on sitting on the new red one. Let's fix this before it hits 'next'. Those who want to create a new branch and switch to it can do "git checkout B" after doing a "git branch -c B", and if that operation is so useful and deserves a short-hand way to do so, perhaps extend "git checkout -b B" to copy configurations while creating the new branch B. Signed-off-by: Junio C Hamano <>
Diffstat (limited to 't/')
1 files changed, 5 insertions, 5 deletions
diff --git a/t/ b/t/
index 5d03ad1..e286dda 100755
--- a/t/
+++ b/t/
@@ -422,7 +422,7 @@ test_expect_success 'git branch --copy is a synonym for -c' '
test_cmp expect actual
-test_expect_success 'git branch -c ee ef should copy and checkout branch ef' '
+test_expect_success 'git branch -c ee ef should copy ee to create branch ef' '
git checkout -b ee &&
git reflog exists refs/heads/ee &&
git config Hello &&
@@ -431,7 +431,7 @@ test_expect_success 'git branch -c ee ef should copy and checkout branch ef' '
git reflog exists refs/heads/ef &&
test $(git config = Hello &&
test $(git config branch.ef.dummy) = Hello &&
- test $(git rev-parse --abbrev-ref HEAD) = ef
+ test $(git rev-parse --abbrev-ref HEAD) = ee
test_expect_success 'git branch -c f/f g/g should work' '
@@ -494,12 +494,12 @@ test_expect_success 'git branch -C c1 c2 should succeed when c1 is checked out'
git checkout -b c1 &&
git branch c2 &&
git branch -C c1 c2 &&
- test $(git rev-parse --abbrev-ref HEAD) = c2
+ test $(git rev-parse --abbrev-ref HEAD) = c1
-test_expect_success 'git branch -C c1 c2 should add entries to .git/logs/HEAD' '
+test_expect_success 'git branch -C c1 c2 should never touch HEAD' '
msg="Branch: copied refs/heads/c1 to refs/heads/c2" &&
- grep "$msg$" .git/logs/HEAD
+ ! grep "$msg$" .git/logs/HEAD
test_expect_success 'git branch -C master should work when master is checked out' '