diff --git a/tools/deploy/script.ts b/tools/deploy/script.ts
index 1779497e..9ba59dee 100644
--- a/tools/deploy/script.ts
+++ b/tools/deploy/script.ts
@@ -188,6 +188,11 @@ function makeEnv2(srcDir : string, queue: ActionQueue) {
             }
             queue.copy(nodePath.join(srcDir, src), dst);
         },
+
+        read(srcp : pathlib.PathLike) : string {
+            const src = pathlib.format(pathlib.path(srcp));
+            return fs.readFileSync(nodePath.join(srcDir, src), 'utf8');
+        },
     }
 }