move output dir creation.

Better to error out before build.

rebuild.sh

@@ -21,6 +21,15 @@ if ! test -d "$BUILD_DIR" ; then
     git clone https://github.com/armbian/build $BUILD_DIR
 fi
 
+IMG_DIR="../images"
+if [[ ! -e $IMG_DIR ]]; then
+    echo "Creating Output directory $IMG_DIR"
+    mkdir $IMG_DIR
+elif [[ ! -d $IMG_DIR ]]; then
+    echo "$IMG_DIR exists but not a directory"
+    exit 20 # Not a directory
+fi
+
 ROOT_DIR=$(pwd)
 TAG=$(git describe --always --tags)
 NAME="rebuild-${VERSION}-${TAG}"
@@ -45,9 +54,5 @@ cd "$BUILD_DIR"
 DOCKER_EXTRA_ARGS="--cpus=12" ./compile.sh rebuild
 IMG=$(ls -1 output/images/ | grep "img.xz$")
 
-IMGPATH="../images"
-if [[ ! -e $IMGPATH ]]; then
-    mkdir $IMGPATH
-fi
-mv "$BUILD_DIR"/output/images/"$IMG" "${IMGPATH}/${NAME}.img.xz"
+mv "$BUILD_DIR"/output/images/"$IMG" "${IMG_DIR}/${NAME}.img.xz"
 echo "🍰 Finished building ${NAME}"