build: Add some required modules for node

2 files changed, 78 insertions, 0 deletions

diff --git a/node_modules/execa/lib/errname.js b/node_modules/execa/lib/errname.js
new file mode 100644
index 0000000..328f3e3
--- /dev/null
+++ b/node_modules/execa/lib/errname.js
@@ -0,0 +1,37 @@
+'use strict';
+// The Node team wants to deprecate `process.bind(...)`.
+//   https://github.com/nodejs/node/pull/2768
+//
+// However, we need the 'uv' binding for errname support.
+// This is a defensive wrapper around it so `execa` will not fail entirely if it stops working someday.
+//
+// If this ever stops working. See: https://github.com/sindresorhus/execa/issues/31#issuecomment-215939939 for another possible solution.
+let uv;
+
+try {
+	uv = process.binding('uv');
+
+	if (typeof uv.errname !== 'function') {
+		throw new TypeError('uv.errname is not a function');
+	}
+} catch (err) {
+	console.error('execa/lib/errname: unable to establish process.binding(\'uv\')', err);
+	uv = null;
+}
+
+function errname(uv, code) {
+	if (uv) {
+		return uv.errname(code);
+	}
+
+	if (!(code < 0)) {
+		throw new Error('err >= 0');
+	}
+
+	return `Unknown system error ${code}`;
+}
+
+module.exports = code => errname(uv, code);
+
+// Used for testing the fallback behavior
+module.exports.__test__ = errname;
diff --git a/node_modules/execa/lib/stdio.js b/node_modules/execa/lib/stdio.js
new file mode 100644
index 0000000..a82d468
--- /dev/null
+++ b/node_modules/execa/lib/stdio.js
@@ -0,0 +1,41 @@
+'use strict';
+const alias = ['stdin', 'stdout', 'stderr'];
+
+const hasAlias = opts => alias.some(x => Boolean(opts[x]));
+
+module.exports = opts => {
+	if (!opts) {
+		return null;
+	}
+
+	if (opts.stdio && hasAlias(opts)) {
+		throw new Error(`It's not possible to provide \`stdio\` in combination with one of ${alias.map(x => `\`${x}\``).join(', ')}`);
+	}
+
+	if (typeof opts.stdio === 'string') {
+		return opts.stdio;
+	}
+
+	const stdio = opts.stdio || [];
+
+	if (!Array.isArray(stdio)) {
+		throw new TypeError(`Expected \`stdio\` to be of type \`string\` or \`Array\`, got \`${typeof stdio}\``);
+	}
+
+	const result = [];
+	const len = Math.max(stdio.length, alias.length);
+
+	for (let i = 0; i < len; i++) {
+		let value = null;
+
+		if (stdio[i] !== undefined) {
+			value = stdio[i];
+		} else if (opts[alias[i]] !== undefined) {
+			value = opts[alias[i]];
+		}
+
+		result[i] = value;
+	}
+
+	return result;
+};