Acme.BookStore.HttpApi.Host/node_modules/chokidar/index.js

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'use strict';
var EventEmitter = require('events').EventEmitter;
var fs = require('fs');
var sysPath = require('path');
var asyncEach = require('async-each');
var anymatch = require('anymatch');
var globParent = require('glob-parent');
var isGlob = require('is-glob');
var isAbsolute = require('path-is-absolute');
var inherits = require('inherits');
var braces = require('braces');
var normalizePath = require('normalize-path');
var upath = require('upath');

var NodeFsHandler = require('./lib/nodefs-handler');
var FsEventsHandler = require('./lib/fsevents-handler');

var arrify = function(value) {
  if (value == null) return [];
  return Array.isArray(value) ? value : [value];
};

var flatten = function(list, result) {
  if (result == null) result = [];
  list.forEach(function(item) {
    if (Array.isArray(item)) {
      flatten(item, result);
    } else {
      result.push(item);
    }
  });
  return result;
};

// Little isString util for use in Array#every.
var isString = function(thing) {
  return typeof thing === 'string';
};

// Public: Main class.
// Watches files & directories for changes.
//
// * _opts - object, chokidar options hash
//
// Emitted events:
// `add`, `addDir`, `change`, `unlink`, `unlinkDir`, `all`, `error`
//
// Examples
//
//  var watcher = new FSWatcher()
//    .add(directories)
//    .on('add', path => console.log('File', path, 'was added'))
//    .on('change', path => console.log('File', path, 'was changed'))
//    .on('unlink', path => console.log('File', path, 'was removed'))
//    .on('all', (event, path) => console.log(path, ' emitted ', event))
//
function FSWatcher(_opts) {
  EventEmitter.call(this);
  var opts = {};
  // in case _opts that is passed in is a frozen object