tools: move eslint from tools to tools/node_modules

This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/resolve-from/index.js b/tools/node_modules/eslint/node_modules/resolve-from/index.js
new file mode 100644
index 0000000000..9162f4acf3
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/resolve-from/index.js
@@ -0,0 +1,19 @@
+'use strict';
+var path = require('path');
+var Module = require('module');
+
+module.exports = function (fromDir, moduleId) {
+	if (typeof fromDir !== 'string' || typeof moduleId !== 'string') {
+		throw new TypeError('Expected `fromDir` and `moduleId` to be a string');
+	}
+
+	fromDir = path.resolve(fromDir);
+
+	var fromFile = path.join(fromDir, 'noop.js');
+
+	return Module._resolveFilename(moduleId, {
+		id: fromFile,
+		filename: fromFile,
+		paths: Module._nodeModulePaths(fromDir)
+	});
+};