From 1f17234e9b0591469b15724ea5b273d387b01673 Mon Sep 17 00:00:00 2001
From: Alexandre Aubin <alex.aubin@mailoo.org>
Date: Fri, 18 Dec 2020 20:05:03 +0100
Subject: [PATCH] Improve snapshot existence test ?

---
 lib/lxc.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/lxc.sh b/lib/lxc.sh
index a1dc9f2..3124e84 100644
--- a/lib/lxc.sh
+++ b/lib/lxc.sh
@@ -14,7 +14,11 @@ LXC_CREATE () {
 }
 
 LXC_SNAPSHOT_EXISTS() {
-    sudo lxc info $LXC_NAME 2>/dev/null | grep -A10 Snapshots | tail -n -1 | awk '{print $1}' | grep -q -w "$1"
+    local snapname=$1
+    sudo lxc list --format json \
+        | jq -e --arg LXC_NAME $LXC_NAME --arg snapname $snapname \
+        '.[] | select(.name==$LXC_NAME) | .snapshots[] | select(.name==$snapname)' \
+            >/dev/null
 }
 
 CREATE_LXC_SNAPSHOT () {