From e980765c59c173e9a10ce1069c763645b87fd50c Mon Sep 17 00:00:00 2001
From: Phil Hord <hordp@cisco.com>
Date: Tue, 23 Oct 2012 16:39:56 -0400
Subject: [PATCH] git-pull: Avoid merge-base on detached head
git pull --rebase does some clever tricks to find the base
for $upstream, but it forgets that we may not have any
branch at all. When this happens, git merge-base reports its
"usage" help in the middle of an otherwise successful
rebase operation, because git-merge is called with one too
few parameters.
Since we do not need the merge-base trick in the case of a
detached HEAD, detect this condition and bypass the clever
trick and the usage noise.
Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Jeff King <peff@peff.net>
---
git-pull.sh | 1 +
1 file changed, 1 insertion(+)
diff --git a/git-pull.sh b/git-pull.sh
index 2a10047eb7..266e682f6c 100755
--- a/git-pull.sh
+++ b/git-pull.sh
@@ -200,6 +200,7 @@ test true = "$rebase" && {
require_clean_work_tree "pull with rebase" "Please commit or stash them."
fi
oldremoteref= &&
+ test -n "$curr_branch" &&
. git-parse-remote &&
remoteref="$(get_remote_merge_branch "$@" 2>/dev/null)" &&
oldremoteref="$(git rev-parse -q --verify "$remoteref")" &&
--
2.48.1