1 files changed, 3 insertions(+), 4 deletions(-)

M tm-commit

@@ 1,11 1,10 @@
 #!/bin/sh
 
 . "$(dirname -- "$0")/lib.sh"
-parents=
 while getopts p: opt; do
 	case "$opt" in
 	p)
-		parents="$parents -p $OPTARG"
+		parents="${parents:-} -p $OPTARG"
 		;;
 	?)
 		abort "usage: tm commit [-p <parent>]... [<file>|<directory>]"


@@ 15,9 14,9 @@ done
 
 shift "$((OPTIND - 1))"
 
-[ -z "$parents" ] && parents="-p HEAD"
+tm resolve-ref HEAD >/dev/null 2>/dev/null && : "${parents=-p HEAD}"
 
 [ $# -gt 1 ] && abort "usage: tm commit [-p <parent>]... [<file>|<directory>]"
 tree="$(tm insert "${1:-.}")" || abort "failed to insert ${1:-.}"
 commit="$(tm commit-tree $parents "$tree")" || abort "failed to commit $tree"
-exec tm update-ref index "$commit"
+exec tm update-ref index "$commit" >/dev/null