From 51c940394f4834600ef50136a18adf14d9a9999c Mon Sep 17 00:00:00 2001
From: Shiming Zhang <wzshiming@foxmail.com>
Date: Mon, 13 Sep 2021 19:19:00 +0800
Subject: [PATCH] Fix default mediaType

---
 scripts/diff-image.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/diff-image.sh b/scripts/diff-image.sh
index da4a4fb..988dcc2 100755
--- a/scripts/diff-image.sh
+++ b/scripts/diff-image.sh
@@ -66,9 +66,9 @@ function inspect() {
         echo "${raw}" | jq -r '.fsLayers[].blobSum'
         ;;
     2)
-        local mediaType=$(echo "${raw}" | jq -r '.mediaType')
+        local mediaType=$(echo "${raw}" | jq -r '.mediaType // "" ')
         case "${mediaType}" in
-        "application/vnd.docker.distribution.manifest.v2+json")
+        "application/vnd.docker.distribution.manifest.v2+json" | "")
             echo "${raw}" | jq -r '.layers[].digest'
             ;;
         "application/vnd.docker.distribution.manifest.list.v2+json")