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, 47 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/argparse/lib/action/version.js b/tools/node_modules/eslint/node_modules/argparse/lib/action/version.js
new file mode 100644
index 0000000000..8053328cde
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/argparse/lib/action/version.js
@@ -0,0 +1,47 @@
+/*:nodoc:*
+ * class ActionVersion
+ *
+ * Support action for printing program version
+ * This class inherited from [[Action]]
+ **/
+'use strict';
+
+var util = require('util');
+
+var Action = require('../action');
+
+//
+// Constants
+//
+var c = require('../const');
+
+/*:nodoc:*
+ * new ActionVersion(options)
+ * - options (object): options hash see [[Action.new]]
+ *
+ **/
+var ActionVersion = module.exports = function ActionVersion(options) {
+  options = options || {};
+  options.defaultValue = (options.defaultValue ? options.defaultValue : c.SUPPRESS);
+  options.dest = (options.dest || c.SUPPRESS);
+  options.nargs = 0;
+  this.version = options.version;
+  Action.call(this, options);
+};
+util.inherits(ActionVersion, Action);
+
+/*:nodoc:*
+ * ActionVersion#call(parser, namespace, values, optionString) -> Void
+ * - parser (ArgumentParser): current parser
+ * - namespace (Namespace): namespace for output data
+ * - values (Array): parsed values
+ * - optionString (Array): input option string(not parsed)
+ *
+ * Print version and exit
+ **/
+ActionVersion.prototype.call = function (parser) {
+  var version = this.version || parser.version;
+  var formatter = parser._getFormatter();
+  formatter.addText(version);
+  parser.exit(0, formatter.formatHelp());
+};