#!/usr/bin/env node
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'use strict';
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/* eslint-disable no-shadow, no-console */
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const fs = require('fs');
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const net = require('net');
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const debug = require('debug')('webpack-dev-server');
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const importLocal = require('import-local');
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const yargs = require('yargs');
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const webpack = require('webpack');
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const Server = require('../lib/Server');
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const setupExitSignals = require('../lib/utils/setupExitSignals');
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const colors = require('../lib/utils/colors');
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const processOptions = require('../lib/utils/processOptions');
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const createLogger = require('../lib/utils/createLogger');
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const getVersions = require('../lib/utils/getVersions');
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const options = require('./options');
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let server;
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const serverData = {
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server: null,
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};
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// we must pass an object that contains the server object as a property so that
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// we can update this server property later, and setupExitSignals will be able to
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// recognize that the server has been instantiated, because we will set
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// serverData.server to the new server object.
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setupExitSignals(serverData);
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// Prefer the local installation of webpack-dev-server
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if (importLocal(__filename)) {
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debug('Using local install of webpack-dev-server');
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return;
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}
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try {
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require.resolve('webpack-cli');
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} catch (err) {
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console.error('The CLI moved into a separate package: webpack-cli');
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console.error(
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"Please install 'webpack-cli' in addition to webpack itself to use the CLI"
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);
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console.error('-> When using npm: npm i -D webpack-cli');
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console.error('-> When using yarn: yarn add -D webpack-cli');
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process.exitCode = 1;
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}
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yargs.usage(
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`${getVersions()}\nUsage: https://webpack.js.org/configuration/dev-server/`
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);
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// webpack-cli@3.3 path : 'webpack-cli/bin/config/config-yargs'
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let configYargsPath;
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try {
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require.resolve('webpack-cli/bin/config/config-yargs');
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configYargsPath = 'webpack-cli/bin/config/config-yargs';
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} catch (e) {
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configYargsPath = 'webpack-cli/bin/config-yargs';
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}
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// eslint-disable-next-line import/no-extraneous-dependencies
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// eslint-disable-next-line import/no-dynamic-require
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require(configYargsPath)(yargs);
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// It is important that this is done after the webpack yargs config,
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// so it overrides webpack's version info.
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yargs.version(getVersions());
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yargs.options(options);
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const argv = yargs.argv;
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// webpack-cli@3.3 path : 'webpack-cli/bin/utils/convert-argv'
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let convertArgvPath;
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try {
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require.resolve('webpack-cli/bin/utils/convert-argv');
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convertArgvPath = 'webpack-cli/bin/utils/convert-argv';
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} catch (e) {
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convertArgvPath = 'webpack-cli/bin/convert-argv';
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}
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// eslint-disable-next-line import/no-extraneous-dependencies
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// eslint-disable-next-line import/no-dynamic-require
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const config = require(convertArgvPath)(yargs, argv, {
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outputFilename: '/bundle.js',
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});
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function startDevServer(config, options) {
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const log = createLogger(options);
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let compiler;
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try {
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compiler = webpack(config);
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} catch (err) {
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if (err instanceof webpack.WebpackOptionsValidationError) {
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log.error(colors.error(options.stats.colors, err.message));
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// eslint-disable-next-line no-process-exit
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process.exit(1);
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}
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throw err;
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}
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try {
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server = new Server(compiler, options, log);
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serverData.server = server;
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} catch (err) {
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if (err.name === 'ValidationError') {
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log.error(colors.error(options.stats.colors, err.message));
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// eslint-disable-next-line no-process-exit
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process.exit(1);
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}
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throw err;
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}
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if (options.socket) {
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server.listeningApp.on('error', (e) => {
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if (e.code === 'EADDRINUSE') {
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const clientSocket = new net.Socket();
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clientSocket.on('error', (err) => {
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if (err.code === 'ECONNREFUSED') {
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// No other server listening on this socket so it can be safely removed
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fs.unlinkSync(options.socket);
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server.listen(options.socket, options.host, (error) => {
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if (error) {
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throw error;
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}
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});
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}
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});
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clientSocket.connect({ path: options.socket }, () => {
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throw new Error('This socket is already used');
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});
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}
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});
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server.listen(options.socket, options.host, (err) => {
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if (err) {
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throw err;
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}
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// chmod 666 (rw rw rw)
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const READ_WRITE = 438;
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fs.chmod(options.socket, READ_WRITE, (err) => {
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if (err) {
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throw err;
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}
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});
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});
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} else {
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server.listen(options.port, options.host, (err) => {
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if (err) {
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throw err;
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}
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});
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}
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}
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processOptions(config, argv, (config, options) => {
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startDevServer(config, options);
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});
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