mirror of
https://github.com/storybookjs/storybook.git
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303 lines
10 KiB
TypeScript
303 lines
10 KiB
TypeScript
import path from 'path';
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import { dedent } from 'ts-dedent';
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import { DefinePlugin, HotModuleReplacementPlugin, ProgressPlugin, ProvidePlugin } from 'webpack';
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import type { Configuration } from 'webpack';
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import HtmlWebpackPlugin from 'html-webpack-plugin';
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// @ts-ignore // -- this has typings for webpack4 in it, won't work
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import CaseSensitivePathsPlugin from 'case-sensitive-paths-webpack-plugin';
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import TerserWebpackPlugin from 'terser-webpack-plugin';
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import VirtualModulePlugin from 'webpack-virtual-modules';
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import ForkTsCheckerWebpackPlugin from 'fork-ts-checker-webpack-plugin';
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import type { Options, CoreConfig, DocsOptions } from '@storybook/core-common';
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import {
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stringifyProcessEnvs,
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handlebars,
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interpolate,
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normalizeStories,
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readTemplate,
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loadPreviewOrConfigFile,
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isPreservingSymlinks,
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} from '@storybook/core-common';
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import { toRequireContextString, toImportFn } from '@storybook/core-webpack';
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import type { BuilderOptions, TypescriptOptions } from '../types';
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import { createBabelLoader } from './babel-loader-preview';
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const storybookPaths: Record<string, string> = {
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global: path.dirname(require.resolve(`global/package.json`)),
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...[
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'addons',
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'api',
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'store',
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'channels',
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'channel-postmessage',
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'channel-websocket',
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'components',
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'core-events',
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'router',
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'theming',
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'semver',
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'preview-web',
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'client-api',
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'client-logger',
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].reduce(
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(acc, sbPackage) => ({
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...acc,
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[`@storybook/${sbPackage}`]: path.dirname(
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require.resolve(`@storybook/${sbPackage}/package.json`)
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),
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}),
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{}
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),
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};
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export default async (
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options: Options & Record<string, any> & { typescriptOptions: TypescriptOptions }
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): Promise<Configuration> => {
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const {
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outputDir = path.join('.', 'public'),
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quiet,
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packageJson,
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configType,
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presets,
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previewUrl,
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babelOptions,
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typescriptOptions,
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features,
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serverChannelUrl,
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} = options;
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const framework = await presets.apply('framework', undefined);
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if (!framework) {
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throw new Error(dedent`
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You must to specify a framework in '.storybook/main.js' config.
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https://github.com/storybookjs/storybook/blob/next/MIGRATION.md#framework-field-mandatory
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`);
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}
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const frameworkName = typeof framework === 'string' ? framework : framework.name;
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const frameworkOptions = await presets.apply('frameworkOptions');
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const isProd = configType === 'PRODUCTION';
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const envs = await presets.apply<Record<string, string>>('env');
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const logLevel = await presets.apply('logLevel', undefined);
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const headHtmlSnippet = await presets.apply('previewHead');
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const bodyHtmlSnippet = await presets.apply('previewBody');
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const template = await presets.apply<string>('previewMainTemplate');
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const coreOptions = await presets.apply<CoreConfig>('core');
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const builderOptions: BuilderOptions =
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typeof coreOptions.builder === 'string' ? {} : coreOptions.builder?.options || {};
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const docsOptions = await presets.apply<DocsOptions>('docs');
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const configs = [
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...(await presets.apply('config', [], options)),
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loadPreviewOrConfigFile(options),
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].filter(Boolean);
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const entries = (await presets.apply('entries', [], options)) as string[];
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const workingDir = process.cwd();
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const stories = normalizeStories(await presets.apply('stories', [], options), {
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configDir: options.configDir,
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workingDir,
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});
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const virtualModuleMapping: Record<string, string> = {};
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if (features?.storyStoreV7) {
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const storiesFilename = 'storybook-stories.js';
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const storiesPath = path.resolve(path.join(workingDir, storiesFilename));
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const needPipelinedImport = !!builderOptions.lazyCompilation && !isProd;
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virtualModuleMapping[storiesPath] = toImportFn(stories, { needPipelinedImport });
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const configEntryPath = path.resolve(path.join(workingDir, 'storybook-config-entry.js'));
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virtualModuleMapping[configEntryPath] = handlebars(
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await readTemplate(
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require.resolve(
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'@storybook/builder-webpack5/templates/virtualModuleModernEntry.js.handlebars'
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)
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),
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{
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storiesFilename,
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configs,
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}
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// We need to double escape `\` for webpack. We may have some in windows paths
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).replace(/\\/g, '\\\\');
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entries.push(configEntryPath);
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} else {
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const frameworkInitEntry = path.resolve(
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path.join(workingDir, 'storybook-init-framework-entry.js')
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);
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virtualModuleMapping[frameworkInitEntry] = `import '${frameworkName}';`;
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entries.push(frameworkInitEntry);
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const entryTemplate = await readTemplate(
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path.join(__dirname, 'virtualModuleEntry.template.js')
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);
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configs.forEach((configFilename: any) => {
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const clientApi = storybookPaths['@storybook/client-api'];
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const clientLogger = storybookPaths['@storybook/client-logger'];
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// NOTE: although this file is also from the `dist/cjs` directory, it is actually a ESM
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// file, see https://github.com/storybookjs/storybook/pull/16727#issuecomment-986485173
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virtualModuleMapping[`${configFilename}-generated-config-entry.js`] = interpolate(
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entryTemplate,
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{
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configFilename,
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clientApi,
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clientLogger,
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}
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);
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entries.push(`${configFilename}-generated-config-entry.js`);
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});
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if (stories.length > 0) {
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const storyTemplate = await readTemplate(
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path.join(__dirname, 'virtualModuleStory.template.js')
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);
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// NOTE: this file has a `.cjs` extension as it is a CJS file (from `dist/cjs`) and runs
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// in the user's webpack mode, which may be strict about the use of require/import.
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// See https://github.com/storybookjs/storybook/issues/14877
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const storiesFilename = path.resolve(path.join(workingDir, `generated-stories-entry.cjs`));
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virtualModuleMapping[storiesFilename] = interpolate(storyTemplate, {
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frameworkName,
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})
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// Make sure we also replace quotes for this one
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.replace("'{{stories}}'", stories.map(toRequireContextString).join(','));
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entries.push(storiesFilename);
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}
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}
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const shouldCheckTs = typescriptOptions.check && !typescriptOptions.skipBabel;
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const tsCheckOptions = typescriptOptions.checkOptions || {};
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return {
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name: 'preview',
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mode: isProd ? 'production' : 'development',
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bail: isProd,
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devtool: 'cheap-module-source-map',
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entry: entries,
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output: {
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path: path.resolve(process.cwd(), outputDir),
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filename: isProd ? '[name].[contenthash:8].iframe.bundle.js' : '[name].iframe.bundle.js',
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publicPath: '',
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},
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stats: {
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preset: 'none',
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logging: 'error',
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},
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watchOptions: {
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ignored: /node_modules/,
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},
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ignoreWarnings: [
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{
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message: /export '\S+' was not found in 'global'/,
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},
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],
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plugins: [
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Object.keys(virtualModuleMapping).length > 0
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? new VirtualModulePlugin(virtualModuleMapping)
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: (null as any),
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new HtmlWebpackPlugin({
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filename: `iframe.html`,
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// FIXME: `none` isn't a known option
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chunksSortMode: 'none' as any,
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alwaysWriteToDisk: true,
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inject: false,
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template,
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templateParameters: {
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version: packageJson.version,
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globals: {
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CONFIG_TYPE: configType,
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LOGLEVEL: logLevel,
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FRAMEWORK_OPTIONS: frameworkOptions,
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CHANNEL_OPTIONS: coreOptions.channelOptions,
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FEATURES: features,
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PREVIEW_URL: previewUrl,
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STORIES: stories.map((specifier) => ({
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...specifier,
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importPathMatcher: specifier.importPathMatcher.source,
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})),
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DOCS_OPTIONS: docsOptions,
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SERVER_CHANNEL_URL: serverChannelUrl,
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},
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headHtmlSnippet,
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bodyHtmlSnippet,
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},
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minify: {
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collapseWhitespace: true,
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removeComments: true,
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removeRedundantAttributes: true,
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removeScriptTypeAttributes: false,
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removeStyleLinkTypeAttributes: true,
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useShortDoctype: true,
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},
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}),
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new DefinePlugin({
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...stringifyProcessEnvs(envs),
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NODE_ENV: JSON.stringify(process.env.NODE_ENV),
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}),
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new ProvidePlugin({ process: require.resolve('process/browser.js') }),
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isProd ? null : new HotModuleReplacementPlugin(),
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new CaseSensitivePathsPlugin(),
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quiet ? null : new ProgressPlugin({}),
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shouldCheckTs ? new ForkTsCheckerWebpackPlugin(tsCheckOptions) : null,
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].filter(Boolean),
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module: {
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rules: [
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{
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test: /\.m?js$/,
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type: 'javascript/auto',
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},
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{
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test: /\.m?js$/,
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resolve: {
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fullySpecified: false,
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},
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},
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createBabelLoader(babelOptions, typescriptOptions),
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{
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test: /\.md$/,
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type: 'asset/source',
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},
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],
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},
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resolve: {
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extensions: ['.mjs', '.js', '.jsx', '.ts', '.tsx', '.json', '.cjs'],
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modules: ['node_modules'].concat(envs.NODE_PATH || []),
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mainFields: ['browser', 'module', 'main'].filter(Boolean),
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alias: storybookPaths,
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fallback: {
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path: require.resolve('path-browserify'),
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assert: require.resolve('browser-assert'),
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util: require.resolve('util'),
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},
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// Set webpack to resolve symlinks based on whether the user has asked node to.
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// This feels like it should be default out-of-the-box in webpack :shrug:
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symlinks: !isPreservingSymlinks(),
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},
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optimization: {
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splitChunks: {
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chunks: 'all',
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},
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runtimeChunk: true,
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sideEffects: true,
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usedExports: isProd,
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moduleIds: 'named',
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minimizer: isProd
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? [
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new TerserWebpackPlugin({
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parallel: true,
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terserOptions: {
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sourceMap: true,
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mangle: false,
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keep_fnames: true,
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},
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}),
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]
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: [],
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},
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performance: {
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hints: isProd ? 'warning' : false,
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},
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};
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};
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