first commit

src/util/errors.js

@@ -0,0 +1,19 @@
+'use strict';
+
+class ConfigError extends Error {
+  constructor(message, { errors = [] } = {}) {
+    super(message);
+    this.name = 'ConfigError';
+    this.errors = errors;
+  }
+}
+
+class BuildError extends Error {
+  constructor(message, { errors = [] } = {}) {
+    super(message);
+    this.name = 'BuildError';
+    this.errors = errors;
+  }
+}
+
+module.exports = { ConfigError, BuildError };