Signed-off-by: Junio C Hamano <junkio@cox.net>
shift
head_arg="$1"
shift
+elif ! git-rev-parse --verify HEAD 2>/dev/null
+then
+ # If the merged head is a valid one there is no reason to
+ # forbid "git merge" into a branch yet to be born. We do
+ # the same for "git pull".
+ if test 1 -ne $#
+ then
+ echo >&2 "Can merge only exactly one commit into empty head"
+ exit 1
+ fi
+
+ rh=$(git rev-parse --verify "$1^0") ||
+ die "$1 - not something we can merge"
+
+ git-update-ref -m "initial pull" HEAD "$rh" "" &&
+ git-read-tree --reset -u HEAD
+ exit
+
else
# We are invoked directly as the first-class UI.
head_arg=HEAD