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- 'use strict';
-
- const mime = require('mime');
-
- const createContext = require('./lib/context');
- const middleware = require('./lib/middleware');
- const reporter = require('./lib/reporter');
- const { setFs, toDisk } = require('./lib/fs');
- const { getFilenameFromUrl, noop, ready } = require('./lib/util');
-
- const defaults = {
- logLevel: 'info',
- logTime: false,
- logger: null,
- mimeTypes: null,
- reporter,
- stats: {
- colors: true,
- context: process.cwd(),
- },
- watchOptions: {
- aggregateTimeout: 200,
- },
- writeToDisk: false,
- };
-
- module.exports = function wdm(compiler, opts) {
- const options = Object.assign({}, defaults, opts);
-
- // defining custom MIME type
- if (options.mimeTypes) {
- const typeMap = options.mimeTypes.typeMap || options.mimeTypes;
- const force = !!options.mimeTypes.force;
- mime.define(typeMap, force);
- }
-
- const context = createContext(compiler, options);
-
- // start watching
- if (!options.lazy) {
- context.watching = compiler.watch(options.watchOptions, (err) => {
- if (err) {
- context.log.error(err.stack || err);
- if (err.details) {
- context.log.error(err.details);
- }
- }
- });
- } else {
- if (typeof options.filename === 'string') {
- const filename = options.filename
- .replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&') // eslint-disable-line no-useless-escape
- .replace(/\\\[[a-z]+\\\]/gi, '.+');
-
- options.filename = new RegExp(`^[/]{0,1}${filename}$`);
- }
-
- context.state = true;
- }
-
- if (options.writeToDisk) {
- toDisk(context);
- }
-
- setFs(context, compiler);
-
- return Object.assign(middleware(context), {
- close(callback) {
- // eslint-disable-next-line no-param-reassign
- callback = callback || noop;
-
- if (context.watching) {
- context.watching.close(callback);
- } else {
- callback();
- }
- },
-
- context,
-
- fileSystem: context.fs,
-
- getFilenameFromUrl: getFilenameFromUrl.bind(
- this,
- context.options.publicPath,
- context.compiler
- ),
-
- invalidate(callback) {
- // eslint-disable-next-line no-param-reassign
- callback = callback || noop;
-
- if (context.watching) {
- ready(context, callback, {});
- context.watching.invalidate();
- } else {
- callback();
- }
- },
-
- waitUntilValid(callback) {
- // eslint-disable-next-line no-param-reassign
- callback = callback || noop;
-
- ready(context, callback, {});
- },
- });
- };
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