X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=tg.sh;h=56c5709f1d8f319e7d356d1b0fe9f0880cf98fed;hb=73e98b616e3d87f0196dc860287d8b65efce864a;hp=54b7875a39673886ef3abde6908922d512f0873f;hpb=1cccede543ce4a1d7aac51042e4b9b2e975453c5;p=topgit.git

diff --git a/tg.sh b/tg.sh
index 54b7875..56c5709 100644
--- a/tg.sh
+++ b/tg.sh
@@ -112,6 +112,12 @@ needs_update()
 	} || : # $1 is not tracked by TopGit anymore
 }
 
+# branch_empty NAME
+branch_empty()
+{
+	[ -z "$(git diff-tree "refs/top-bases/$1" "$1" | fgrep -v "	.top")" ]
+}
+
 # switch_to_base NAME [SEED]
 switch_to_base()
 {