1 files changed, 37 insertions, 0 deletions
diff --git a/config/helpers/evaluate_module_from_source.js b/config/helpers/evaluate_module_from_source.js
new file mode 100644
index 00000000000..b55bbb82b63
--- /dev/null
+++ b/config/helpers/evaluate_module_from_source.js
@@ -0,0 +1,37 @@
+const vm = require('vm');
+
+/**
+ * This function uses Node's `vm` modules to evaluate the `module.exports` of a given source string
+ *
+ * Example:
+ *
+ * ```javascript
+ * const { exports: moduleExports } = evaluateModuleFromSource("const foo = 7;\n module.exports.bar = 10 + foo;");
+ *
+ * assert(moduleExports.bar === 17);
+ * ```
+ *
+ * @param {String} source to be evaluated using Node's `vm` modules
+ * @param {{ require: Function }} options used in the context during evaluation of the Node module
+ * @returns {{ exports: any }} exports added to the script's `module.exports` context
+ */
+const evaluateModuleFromSource = (source, { require } = {}) => {
+  const context = {
+    module: {
+      exports: {},
+    },
+    require,
+  };
+
+  try {
+    const script = new vm.Script(source);
+    script.runInNewContext(context);
+  } catch (e) {
+    console.error(e);
+    throw e;
+  }
+
+  return context.module;
+};
+
+module.exports = { evaluateModuleFromSource };