Initial commit

node_modules/execa/lib/methods/parameters.js

@@ -0,0 +1,31 @@
+import isPlainObject from 'is-plain-obj';
+import {safeNormalizeFileUrl} from '../arguments/file-url.js';
+
+// The command `arguments` and `options` are both optional.
+// This also does basic validation on them and on the command file.
+export const normalizeParameters = (rawFile, rawArguments = [], rawOptions = {}) => {
+	const filePath = safeNormalizeFileUrl(rawFile, 'First argument');
+	const [commandArguments, options] = isPlainObject(rawArguments)
+		? [[], rawArguments]
+		: [rawArguments, rawOptions];
+
+	if (!Array.isArray(commandArguments)) {
+		throw new TypeError(`Second argument must be either an array of arguments or an options object: ${commandArguments}`);
+	}
+
+	if (commandArguments.some(commandArgument => typeof commandArgument === 'object' && commandArgument !== null)) {
+		throw new TypeError(`Second argument must be an array of strings: ${commandArguments}`);
+	}
+
+	const normalizedArguments = commandArguments.map(String);
+	const nullByteArgument = normalizedArguments.find(normalizedArgument => normalizedArgument.includes('\0'));
+	if (nullByteArgument !== undefined) {
+		throw new TypeError(`Arguments cannot contain null bytes ("\\0"): ${nullByteArgument}`);
+	}
+
+	if (!isPlainObject(options)) {
+		throw new TypeError(`Last argument must be an options object: ${options}`);
+	}
+
+	return [filePath, normalizedArguments, options];
+};