Remove array expansion

zombienet.sh

@@ -3,12 +3,6 @@
 ZOMBIENET_V=v1.3.68
 POLKADOT_V=v1.1.0
 
-POLKADOT_FILES=(
-  "polkadot"
-  "polkadot-execute-worker"
-  "polkadot-prepare-worker"
-)
-
 case "$(uname -s)" in
     Linux*)     MACHINE=Linux;;
     Darwin*)    MACHINE=Mac;;
@@ -31,7 +25,9 @@ build_polkadot(){
       git checkout polkadot-$POLKADOT_V
       echo "building polkadot executable..."
       cargo build --release --features fast-runtime
-      cp "${POLKADOT_FILES[@]/#/target/release/}" "$CWD/bin"
+      cp target/release/polkadot "$CWD/bin"
+      cp target/release/polkadot-execute-worker "$CWD/bin"
+      cp target/release/polkadot-prepare-worker "$CWD/bin"
     popd
   popd
 }
@@ -42,9 +38,9 @@ zombienet_init() {
     curl -LO https://github.com/paritytech/zombienet/releases/download/$ZOMBIENET_V/$ZOMBIENET_BIN
     chmod +x $ZOMBIENET_BIN
   fi
-  for file in "${POLKADOT_FILES[@]}"; do
-      [[ -f "bin/$file" ]] || { build_polkadot; break; }
-  done
+  if [ ! -f bin/polkadot ] || [ ! -f bin/polkadot-execute-worker ] || [ ! -f bin/polkadot-prepare-worker ]; then
+    build_polkadot
+  fi
 }
 
 zombienet_spawn() {