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-rwxr-xr-xgit-submodule.sh11
1 files changed, 8 insertions, 3 deletions
diff --git a/git-submodule.sh b/git-submodule.sh
index e2082fd149..2dd372a21d 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -553,12 +553,17 @@ cmd_summary() {
test $summary_limit = 0 && return
- if rev=$(git rev-parse -q --verify "$1^0")
+ if rev=$(git rev-parse -q --verify --default HEAD ${1+"$1"})
then
head=$rev
- shift
+ test $# = 0 || shift
+ elif test -z "$1" -o "$1" = "HEAD"
+ then
+ # before the first commit: compare with an empty tree
+ head=$(git hash-object -w -t tree --stdin </dev/null)
+ test -z "$1" || shift
else
- head=HEAD
+ head="HEAD"
fi
if [ -n "$files" ]