Fix.

node_modules/argparse/lib/argument/error.js

@@ -0,0 +1,50 @@
+'use strict';
+
+
+var format  = require('util').format;
+
+
+var ERR_CODE = 'ARGError';
+
+/*:nodoc:*
+ * argumentError(argument, message) -> TypeError
+ * - argument (Object): action with broken argument
+ * - message (String): error message
+ *
+ * Error format helper. An error from creating or using an argument
+ * (optional or positional). The string value of this exception
+ * is the message, augmented with information
+ * about the argument that caused it.
+ *
+ * #####Example
+ *
+ *      var argumentErrorHelper = require('./argument/error');
+ *      if (conflictOptionals.length > 0) {
+ *        throw argumentErrorHelper(
+ *          action,
+ *          format('Conflicting option string(s): %s', conflictOptionals.join(', '))
+ *        );
+ *      }
+ *
+ **/
+module.exports = function (argument, message) {
+  var argumentName = null;
+  var errMessage;
+  var err;
+
+  if (argument.getName) {
+    argumentName = argument.getName();
+  } else {
+    argumentName = '' + argument;
+  }
+
+  if (!argumentName) {
+    errMessage = message;
+  } else {
+    errMessage = format('argument "%s": %s', argumentName, message);
+  }
+
+  err = new TypeError(errMessage);
+  err.code = ERR_CODE;
+  return err;
+};

node_modules/argparse/lib/argument/exclusive.js

@@ -0,0 +1,54 @@
+/** internal
+ * class MutuallyExclusiveGroup
+ *
+ * Group arguments.
+ * By default, ArgumentParser groups command-line arguments
+ * into “positional arguments” and “optional arguments”
+ * when displaying help messages. When there is a better
+ * conceptual grouping of arguments than this default one,
+ * appropriate groups can be created using the addArgumentGroup() method
+ *
+ * This class inherited from [[ArgumentContainer]]
+ **/
+'use strict';
+
+var util = require('util');
+
+var ArgumentGroup = require('./group');
+
+/**
+ * new MutuallyExclusiveGroup(container, options)
+ * - container (object): main container
+ * - options (object): options.required -> true/false
+ *
+ * `required` could be an argument itself, but making it a property of
+ * the options argument is more consistent with the JS adaptation of the Python)
+ **/
+var MutuallyExclusiveGroup = module.exports = function MutuallyExclusiveGroup(container, options) {
+  var required;
+  options = options || {};
+  required = options.required || false;
+  ArgumentGroup.call(this, container);
+  this.required = required;
+
+};
+util.inherits(MutuallyExclusiveGroup, ArgumentGroup);
+
+
+MutuallyExclusiveGroup.prototype._addAction = function (action) {
+  var msg;
+  if (action.required) {
+    msg = 'mutually exclusive arguments must be optional';
+    throw new Error(msg);
+  }
+  action = this._container._addAction(action);
+  this._groupActions.push(action);
+  return action;
+};
+
+
+MutuallyExclusiveGroup.prototype._removeAction = function (action) {
+  this._container._removeAction(action);
+  this._groupActions.remove(action);
+};
+

node_modules/argparse/lib/argument/group.js

@@ -0,0 +1,75 @@
+/** internal
+ * class ArgumentGroup
+ *
+ * Group arguments.
+ * By default, ArgumentParser groups command-line arguments
+ * into “positional arguments” and “optional arguments”
+ * when displaying help messages. When there is a better
+ * conceptual grouping of arguments than this default one,
+ * appropriate groups can be created using the addArgumentGroup() method
+ *
+ * This class inherited from [[ArgumentContainer]]
+ **/
+'use strict';
+
+var util = require('util');
+
+var ActionContainer = require('../action_container');
+
+
+/**
+ * new ArgumentGroup(container, options)
+ * - container (object): main container
+ * - options (object): hash of group options
+ *
+ * #### options
+ * - **prefixChars**  group name prefix
+ * - **argumentDefault**  default argument value
+ * - **title**  group title
+ * - **description** group description
+ *
+ **/
+var ArgumentGroup = module.exports = function ArgumentGroup(container, options) {
+
+  options = options || {};
+
+  // add any missing keyword arguments by checking the container
+  options.conflictHandler = (options.conflictHandler || container.conflictHandler);
+  options.prefixChars = (options.prefixChars || container.prefixChars);
+  options.argumentDefault = (options.argumentDefault || container.argumentDefault);
+
+  ActionContainer.call(this, options);
+
+  // group attributes
+  this.title = options.title;
+  this._groupActions = [];
+
+  // share most attributes with the container
+  this._container = container;
+  this._registries = container._registries;
+  this._actions = container._actions;
+  this._optionStringActions = container._optionStringActions;
+  this._defaults = container._defaults;
+  this._hasNegativeNumberOptionals = container._hasNegativeNumberOptionals;
+  this._mutuallyExclusiveGroups = container._mutuallyExclusiveGroups;
+};
+util.inherits(ArgumentGroup, ActionContainer);
+
+
+ArgumentGroup.prototype._addAction = function (action) {
+  // Parent add action
+  action = ActionContainer.prototype._addAction.call(this, action);
+  this._groupActions.push(action);
+  return action;
+};
+
+
+ArgumentGroup.prototype._removeAction = function (action) {
+  // Parent remove action
+  ActionContainer.prototype._removeAction.call(this, action);
+  var actionIndex = this._groupActions.indexOf(action);
+  if (actionIndex >= 0) {
+    this._groupActions.splice(actionIndex, 1);
+  }
+};
+