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, 45 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/node_modules/inquirer/lib/utils/events.js b/tools/node_modules/eslint/node_modules/inquirer/lib/utils/events.js
new file mode 100644
index 0000000000..3d2e147c59
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/inquirer/lib/utils/events.js
@@ -0,0 +1,45 @@
+'use strict';
+var rx = require('rx-lite-aggregates');
+
+function normalizeKeypressEvents(value, key) {
+  return {value: value, key: key || {}};
+}
+
+module.exports = function (rl) {
+  var keypress = rx.Observable.fromEvent(rl.input, 'keypress', normalizeKeypressEvents)
+    .filter(function (e) {
+      // Ignore `enter` key. On the readline, we only care about the `line` event.
+      return e.key.name !== 'enter' && e.key.name !== 'return';
+    });
+
+  return {
+    line: rx.Observable.fromEvent(rl, 'line'),
+    keypress: keypress,
+
+    normalizedUpKey: keypress.filter(function (e) {
+      return e.key.name === 'up' || e.key.name === 'k' || (e.key.name === 'p' && e.key.ctrl);
+    }).share(),
+
+    normalizedDownKey: keypress.filter(function (e) {
+      return e.key.name === 'down' || e.key.name === 'j' || (e.key.name === 'n' && e.key.ctrl);
+    }).share(),
+
+    numberKey: keypress.filter(function (e) {
+      return e.value && '123456789'.indexOf(e.value) >= 0;
+    }).map(function (e) {
+      return Number(e.value);
+    }).share(),
+
+    spaceKey: keypress.filter(function (e) {
+      return e.key && e.key.name === 'space';
+    }).share(),
+
+    aKey: keypress.filter(function (e) {
+      return e.key && e.key.name === 'a';
+    }).share(),
+
+    iKey: keypress.filter(function (e) {
+      return e.key && e.key.name === 'i';
+    }).share()
+  };
+};