Only use --cache-from if image was pulled.

cross-rs · May 3, 2020 · a4c1f45 · a4c1f45
1 parent 20e6574
commit a4c1f45
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/build-docker-image.sh b/build-docker-image.sh
@@ -10,8 +10,10 @@ run() {
   local image_name="rustembedded/cross:${1}"
   local cache_from_args=
 
-  if docker image inspect "${image_name}" &>/dev/null || docker pull "${image_name}"; then
-    cache_from_args=(--cache-from "${image_name}")
+  if ! docker image inspect "${image_name}" &>/dev/null; then
+    if docker pull "${image_name}"; then
+      cache_from_args=(--cache-from "${image_name}")
+    fi
   fi
 
   docker build ${cache_from_args[@]} --pull -t "${image_name}" -f "${dockerfile}" .