bucket.go: check the bucket works before returning it.

Fixes GoogleCloudPlatform#228.
nmousavi · May 24, 2017 · acf20a1 · acf20a1
1 parent df1953f
commit acf20a1
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/bucket.go b/bucket.go
@@ -133,5 +133,12 @@ func setUpBucket(
 			b)
 	}
 
+	// Ensure the bucket works, catching problems early.
+	_, err = b.ListObjects(ctx, &gcs.ListObjectsRequest{MaxResults: 1})
+	if err != nil {
+		err = fmt.Errorf("checking bucket works: %v", err)
+		return
+	}
+
 	return
 }