From 8693bd8f4a6da18ba7af0c27c58f0a7c8badbe25 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Wed, 10 Apr 2019 11:21:32 -0400
Subject: feed_sign(): New function

---
diff --git a/src/index.sh b/src/index.sh
index ebb348e..addbbda 100644
--- a/src/index.sh
+++ b/src/index.sh
@@ -20,6 +20,25 @@
 # along with the ProteanOS Archive Manager.  If not, see
 # <http://www.gnu.org/licenses/>.
 
+feed_sign()
+{
+	local feed_idx="${1}"
+	shift 1
+	local usign=
+
+	if [ x"${conf_key}" = x'' ]; then
+		return
+	fi
+
+	if ${in_place} && ${USIGN_EMBEDDED}; then
+		usign="${builddir}/3rdparty/usign/usign"
+	else
+		usign="${USIGN}"
+	fi
+
+	"${usign}" -S -m "${feed_idx}" -s "${conf_key}"
+}
+
 feed_add_package()
 {
 	local chan="${1}"
--
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