Check wasm optimized output file exists (use-ink#243)

* Check wasm optimized output file exists * Fmt * Add expected optimized file to error * Use display for path
patractlabs · Mar 30, 2021 · b5a1b0d · b5a1b0d
1 parent 5f0788e
commit b5a1b0d
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/cmd/build.rs b/src/cmd/build.rs
@@ -317,6 +317,13 @@ fn optimize_wasm(
         optimization_passes,
     )?;
 
+    if !dest_optimized.exists() {
+        return Err(anyhow::anyhow!(
+            "Optimization failed, optimized wasm output file `{}` not found.",
+            dest_optimized.display()
+        ));
+    }
+
     let original_size = metadata(&crate_metadata.dest_wasm)?.len() as f64 / 1000.0;
     let optimized_size = metadata(&dest_optimized)?.len() as f64 / 1000.0;