init project

node_modules/execa/lib/methods/bind.js

@@ -0,0 +1,23 @@
+import isPlainObject from 'is-plain-obj';
+import {FD_SPECIFIC_OPTIONS} from '../arguments/specific.js';
+
+// Deep merge specific options like `env`. Shallow merge the other ones.
+// Use spread (which only copies own properties) to safely read from boundOptions without prototype pollution
+export const mergeOptions = (boundOptions, options) => {
+	const safeBoundOptions = {__proto__: null, ...boundOptions};
+	const mergedOptions = Object.fromEntries(Object.entries(options).map(([optionName, optionValue]) => [
+		optionName,
+		mergeOption(optionName, safeBoundOptions[optionName], optionValue),
+	]));
+	return {...safeBoundOptions, ...mergedOptions};
+};
+
+const mergeOption = (optionName, boundOptionValue, optionValue) => {
+	if (DEEP_OPTIONS.has(optionName) && isPlainObject(boundOptionValue) && isPlainObject(optionValue)) {
+		return {...boundOptionValue, ...optionValue};
+	}
+
+	return optionValue;
+};
+
+const DEEP_OPTIONS = new Set(['env', ...FD_SPECIFIC_OPTIONS]);