@expo/webpack-config/webpack/addons/withReporting.js

The default Webpack configuration used to build Expo apps targeting the web.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const clean_webpack_plugin_1 = require("clean-webpack-plugin");
const webpack_bundle_analyzer_1 = require("webpack-bundle-analyzer");
const chalk_1 = __importDefault(require("chalk"));
const config_1 = require("../utils/config");
const env_1 = require("../env");
exports.DEFAULT_REPORTING_OPTIONS = {
    analyzerMode: 'static',
    defaultSizes: 'gzip',
    generateStatsFile: true,
    openAnalyzer: false,
    verbose: false,
    path: 'web-report',
    statsFilename: 'stats.json',
    reportFilename: 'report.html',
};
function throwDeprecatedConfig({ web = {} }) {
    const { build = {} } = web;
    if (typeof build.report !== 'undefined') {
        throw new Error('expo.web.build.report is deprecated. Please extend webpack.config.js and use env.report instead.');
    }
}
exports.throwDeprecatedConfig = throwDeprecatedConfig;
function maybeWarnAboutRebuilds(env) {
    const mode = env_1.getMode(env);
    if (mode === 'development') {
        console.log(chalk_1.default.bgYellow.black `Generating a report, this will add noticeably more time to rebuilds.`);
    }
}
exports.maybeWarnAboutRebuilds = maybeWarnAboutRebuilds;
function withReporting(config, env) {
    throwDeprecatedConfig(env_1.getConfig(env));
    const reportConfig = config_1.enableWithPropertyOrConfig(env.report, exports.DEFAULT_REPORTING_OPTIONS, true);
    if (!reportConfig) {
        return config;
    }
    if (reportConfig.verbose) {
        maybeWarnAboutRebuilds(env);
    }
    const reportDir = reportConfig.path;
    if (!Array.isArray(config.plugins))
        config.plugins = [];
    config.plugins.push(
    // Delete the report folder
    new clean_webpack_plugin_1.CleanWebpackPlugin({
        cleanOnceBeforeBuildPatterns: [env_1.getAbsolute(env.projectRoot, reportDir)],
        dry: false,
        verbose: reportConfig.verbose,
    }), 
    // Generate the report.html and stats.json
    // @ts-ignore
    new webpack_bundle_analyzer_1.BundleAnalyzerPlugin(Object.assign(Object.assign({}, reportConfig), { logLevel: reportConfig.verbose ? 'info' : 'silent', statsFilename: env_1.getAbsolute(env.projectRoot, reportDir, reportConfig.statsFilename), reportFilename: env_1.getAbsolute(env.projectRoot, reportDir, reportConfig.reportFilename) })));
    return config;
}
exports.default = withReporting;
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