merge-one-file: make sure we do not mismerge symbolic links.

We ran "merge" command on O->A, O->B, A!=B case without
verifying the path involved is not a symlink.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/git-merge-one-file.sh b/git-merge-one-file.sh
index 906098d..eafef77 100755 (executable)
--- a/git-merge-one-file.sh
+++ b/git-merge-one-file.sh
@@ -58,6 +58,14 @@ case "${1:-.}${2:-.}${3:-.}" in
 # Modified in both, but differently.
 #
 "$1$2$3" | ".$2$3")
+
+       case ",$6,$7," in
+       *,120000,*)
+               echo "ERROR: $4: Not merging symbolic link changes."
+               exit 1
+               ;;
+       esac
+
        src2=`git-unpack-file $3`
        case "$1" in
        '')