Add temporary dir for optimizing artifacts

Author: maurolacy

optimize_workspace.sh

@@ -13,12 +13,11 @@ echo -n "Building artifacts in workspace..."
 echo "done."
 
 echo -n "Optimizing artifacts in workspace..."
-# Start clean
-rm -rf ./artifacts
-mkdir artifacts
-# Optimize and postprocess artifacts
+mkdir -p artifacts
+TMPDIR=$(mktemp -d artifacts.XXX)
+# Optimize artifacts
 (
-  cd artifacts
+  cd "$TMPDIR"
 
   for WASM in ../target/wasm32-unknown-unknown/release/*/*.wasm
   do
@@ -28,6 +27,12 @@ mkdir artifacts
     chmod -x "$BASE"
     echo "done."
   done
+	mv "*.wasm" ../artifacts
+)
+# Postprocess artifacts
+(
+  cd artifacts
   sha256sum -- *.wasm >checksums.txt
 )
+rm -rf "$TMPDIR"
 echo "done."