Only create non-existing weights

postprocess.sh

@@ -7,11 +7,13 @@ set -o errexit -o nounset -o xtrace
 
 weights_file='weights/weights_hpz10_global_1x1.nc'
 
-cdo \
-  -f nc4 \
-  -gennn,global_1x1 \
-  -const,1,hpz7 \
-  "${weights_file}"
+if [[ ! -f $weights_file ]]; then
+  cdo \
+    -f nc4 \
+    -gennn,global_1x1 \
+    -const,1,hpz7 \
+    "${weights_file}"
+fi
 
 cdo \
   -f nc4 \