nodemon-webpack-plugin/dist/index.js

A webpack plugin that starts and reloads a server using Nodemon.

"use strict";

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }

/* eslint-disable no-console */
var nodemon = require('nodemon');

var _require = require('./webpack-utils'),
    getOutputFileMeta = _require.getOutputFileMeta;

module.exports = /*#__PURE__*/function () {
  function _class(nodemonOptions) {
    _classCallCheck(this, _class);

    this.nodemonOptions = nodemonOptions;
    this.isWebpackWatching = false;
    this.isNodemonRunning = false;
  }

  _createClass(_class, [{
    key: "apply",
    value: function apply(compiler) {
      var _this = this;

      var OnAfterEmit = function OnAfterEmit(compilation, callback) {
        if (_this.isWebpackWatching) {
          if (compilation.errors.length > 0) {
            console.log('[nodemon-webpack-plugin]: Compilation error.');
          } else if (!_this.isNodemonRunning) {
            var outputFile = getOutputFileMeta(compilation, compiler.outputPath);

            _this.startMonitoring(outputFile);
          }
        }

        callback();
      };

      var onWatchRun = function onWatchRun(comp, callback) {
        _this.isWebpackWatching = true;
        callback();
      };

      var plugin = {
        name: 'nodemon-webpack-plugin"'
      };

      if (compiler.hooks) {
        compiler.hooks.afterEmit.tapAsync(plugin, OnAfterEmit);
        compiler.hooks.watchRun.tapAsync(plugin, onWatchRun);
      } else {
        compiler.plugin('after-emit', OnAfterEmit);
        compiler.plugin('watch-run', onWatchRun);
      }
    }
  }, {
    key: "startMonitoring",
    value: function startMonitoring(relativeFileName) {
      var nodemonOptionsDefaults = {
        script: relativeFileName,
        watch: relativeFileName
      };

      var nodemonOptions = _objectSpread(_objectSpread({}, nodemonOptionsDefaults), this.nodemonOptions);

      var monitor = nodemon(nodemonOptions);
      monitor.on('log', function (_ref) {
        var colouredMessage = _ref.colour;
        return console.log(colouredMessage);
      });
      this.isNodemonRunning = true; // Ensure we exit nodemon when webpack exists.

      process.once('exit', function () {
        monitor.emit('exit');
      }); // Ensure Ctrl-C triggers exit.

      process.once('SIGINT', function () {
        process.exit(0);
      });
    }
  }]);

  return _class;
}();