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, 184 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/inquirer/lib/prompts/list.js b/tools/node_modules/eslint/node_modules/inquirer/lib/prompts/list.js
new file mode 100644
index 0000000000..c29542f228
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/inquirer/lib/prompts/list.js
@@ -0,0 +1,184 @@
+/**
+ * `list` type prompt
+ */
+
+var _ = require('lodash');
+var util = require('util');
+var chalk = require('chalk');
+var figures = require('figures');
+var cliCursor = require('cli-cursor');
+var runAsync = require('run-async');
+var Base = require('./base');
+var observe = require('../utils/events');
+var Paginator = require('../utils/paginator');
+
+/**
+ * Module exports
+ */
+
+module.exports = Prompt;
+
+/**
+ * Constructor
+ */
+
+function Prompt() {
+  Base.apply(this, arguments);
+
+  if (!this.opt.choices) {
+    this.throwParamError('choices');
+  }
+
+  this.firstRender = true;
+  this.selected = 0;
+
+  var def = this.opt.default;
+
+  // If def is a Number, then use as index. Otherwise, check for value.
+  if (_.isNumber(def) && def >= 0 && def < this.opt.choices.realLength) {
+    this.selected = def;
+  } else if (!_.isNumber(def) && def != null) {
+    this.selected = this.opt.choices.pluck('value').indexOf(def);
+  }
+
+  // Make sure no default is set (so it won't be printed)
+  this.opt.default = null;
+
+  this.paginator = new Paginator();
+}
+util.inherits(Prompt, Base);
+
+/**
+ * Start the Inquiry session
+ * @param  {Function} cb      Callback when prompt is done
+ * @return {this}
+ */
+
+Prompt.prototype._run = function (cb) {
+  this.done = cb;
+
+  var self = this;
+
+  var events = observe(this.rl);
+  events.normalizedUpKey.takeUntil(events.line).forEach(this.onUpKey.bind(this));
+  events.normalizedDownKey.takeUntil(events.line).forEach(this.onDownKey.bind(this));
+  events.numberKey.takeUntil(events.line).forEach(this.onNumberKey.bind(this));
+  events.line
+    .take(1)
+    .map(this.getCurrentValue.bind(this))
+    .flatMap(function (value) {
+      return runAsync(self.opt.filter)(value).catch(function (err) {
+        return err;
+      });
+    })
+    .forEach(this.onSubmit.bind(this));
+
+  // Init the prompt
+  cliCursor.hide();
+  this.render();
+
+  return this;
+};
+
+/**
+ * Render the prompt to screen
+ * @return {Prompt} self
+ */
+
+Prompt.prototype.render = function () {
+  // Render question
+  var message = this.getQuestion();
+
+  if (this.firstRender) {
+    message += chalk.dim('(Use arrow keys)');
+  }
+
+  // Render choices or answer depending on the state
+  if (this.status === 'answered') {
+    message += chalk.cyan(this.opt.choices.getChoice(this.selected).short);
+  } else {
+    var choicesStr = listRender(this.opt.choices, this.selected);
+    var indexPosition = this.opt.choices.indexOf(this.opt.choices.getChoice(this.selected));
+    message += '\n' + this.paginator.paginate(choicesStr, indexPosition, this.opt.pageSize);
+  }
+
+  this.firstRender = false;
+
+  this.screen.render(message);
+};
+
+/**
+ * When user press `enter` key
+ */
+
+Prompt.prototype.onSubmit = function (value) {
+  this.status = 'answered';
+
+  // Rerender prompt
+  this.render();
+
+  this.screen.done();
+  cliCursor.show();
+  this.done(value);
+};
+
+Prompt.prototype.getCurrentValue = function () {
+  return this.opt.choices.getChoice(this.selected).value;
+};
+
+/**
+ * When user press a key
+ */
+Prompt.prototype.onUpKey = function () {
+  var len = this.opt.choices.realLength;
+  this.selected = (this.selected > 0) ? this.selected - 1 : len - 1;
+  this.render();
+};
+
+Prompt.prototype.onDownKey = function () {
+  var len = this.opt.choices.realLength;
+  this.selected = (this.selected < len - 1) ? this.selected + 1 : 0;
+  this.render();
+};
+
+Prompt.prototype.onNumberKey = function (input) {
+  if (input <= this.opt.choices.realLength) {
+    this.selected = input - 1;
+  }
+  this.render();
+};
+
+/**
+ * Function for rendering list choices
+ * @param  {Number} pointer Position of the pointer
+ * @return {String}         Rendered content
+ */
+function listRender(choices, pointer) {
+  var output = '';
+  var separatorOffset = 0;
+
+  choices.forEach(function (choice, i) {
+    if (choice.type === 'separator') {
+      separatorOffset++;
+      output += '  ' + choice + '\n';
+      return;
+    }
+
+    if (choice.disabled) {
+      separatorOffset++;
+      output += '  - ' + choice.name;
+      output += ' (' + (_.isString(choice.disabled) ? choice.disabled : 'Disabled') + ')';
+      output += '\n';
+      return;
+    }
+
+    var isSelected = (i - separatorOffset === pointer);
+    var line = (isSelected ? figures.pointer + ' ' : '  ') + choice.name;
+    if (isSelected) {
+      line = chalk.cyan(line);
+    }
+    output += line + ' \n';
+  });
+
+  return output.replace(/\n$/, '');
+}