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4 years ago
'use strict';
/* eslint-disable
no-shadow,
no-undefined
*/
const webpack = require('webpack');
const addEntries = require('./addEntries');
const getSocketClientPath = require('./getSocketClientPath');
function updateCompiler(compiler, options) {
if (options.inline !== false) {
const findHMRPlugin = (config) => {
if (!config.plugins) {
return undefined;
}
return config.plugins.find(
(plugin) => plugin.constructor === webpack.HotModuleReplacementPlugin
);
};
const compilers = [];
const compilersWithoutHMR = [];
let webpackConfig;
if (compiler.compilers) {
webpackConfig = [];
compiler.compilers.forEach((compiler) => {
webpackConfig.push(compiler.options);
compilers.push(compiler);
if (!findHMRPlugin(compiler.options)) {
compilersWithoutHMR.push(compiler);
}
});
} else {
webpackConfig = compiler.options;
compilers.push(compiler);
if (!findHMRPlugin(compiler.options)) {
compilersWithoutHMR.push(compiler);
}
}
// it's possible that we should clone the config before doing
// this, but it seems safe not to since it actually reflects
// the changes we are making to the compiler
// important: this relies on the fact that addEntries now
// prevents duplicate new entries.
addEntries(webpackConfig, options);
compilers.forEach((compiler) => {
const config = compiler.options;
compiler.hooks.entryOption.call(config.context, config.entry);
const providePlugin = new webpack.ProvidePlugin({
__webpack_dev_server_client__: getSocketClientPath(options),
});
providePlugin.apply(compiler);
});
// do not apply the plugin unless it didn't exist before.
if (options.hot || options.hotOnly) {
compilersWithoutHMR.forEach((compiler) => {
// addDevServerEntrypoints above should have added the plugin
// to the compiler options
const plugin = findHMRPlugin(compiler.options);
if (plugin) {
plugin.apply(compiler);
}
});
}
}
}
module.exports = updateCompiler;