Add sopv support

This is a subset of the Stateless OpenPGP CLI
<https://datatracker.ietf.org/doc/draft-dkg-openpgp-stateless-cli/>,
that can easily replace the GnuPG usage.

There are multiple implementations providing this interface.

2 files changed, 10 insertions, 2 deletions

diff --git a/plugins/curl b/plugins/curl
index 29c0ace..3ae028c 100755
--- a/plugins/curl
+++ b/plugins/curl
@@ -14,7 +14,11 @@ set -e
 if [ "${SIGURL}" ]; then
 	curl -fRz "./current" -m 300 ${CURL_OPTIONS} -o new.sig "${SIGURL}" -o new "${URL}"
 	[ -e new ] || exit 0
-	gpgv --keyring "${KEYRING}" --status-fd 2 new.sig new || exit 1
+	if command -v sopv >/dev/null; then
+		sopv verify new.sig "${KEYRING}" <new || exit 1
+	else
+		gpgv --keyring "${KEYRING}" --status-fd 2 new.sig new || exit 1
+	fi
 	# return 1 because it's not clear what other codes may be safe to
 	# use that do not overlap with codes from curl.
 else
diff --git a/plugins/rsync b/plugins/rsync
index 6aec09c..1ee6831 100755
--- a/plugins/rsync
+++ b/plugins/rsync
@@ -15,7 +15,11 @@ rsync -vt --timeout=300 "${URL}" new
 
 if [ "${SIGURL}" ]; then
 	rsync -vt --timeout=300 "${SIGURL}" new.sig
-	gpgv --keyring "${KEYRING}" --status-fd 2 new.sig new || exit 1
+	if command -v sopv >/dev/null; then
+		sopv verify new.sig "${KEYRING}" <new || exit 1
+	else
+		gpgv --keyring "${KEYRING}" --status-fd 2 new.sig new || exit 1
+	fi
 	# return 1 because it's not clear what other codes may be safe to
 	# use that do not overlap with codes from rsync.
 fi