77 lines
3.1 KiB
JavaScript
77 lines
3.1 KiB
JavaScript
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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const path = require('path');
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const {getDefaultConfig, mergeConfig} = require('@react-native/metro-config');
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const defaultConfig = getDefaultConfig(__dirname);
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/**
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* Metro configuration
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* https://reactnative.dev/docs/metro
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*
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* @type {import('metro-config').MetroConfig}
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*/
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// refractor 5.x moved its entry points under lib/ and language files under
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// lang/, relying on package.json exports maps that Metro 0.80 doesn't support.
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// We implement the exports map manually:
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// "." -> lib/common.js
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// "./all" -> lib/all.js
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// "./core" -> lib/core.js
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// "./*" -> lang/*.js (all language files)
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const refractorRoot = path.resolve(__dirname, 'node_modules/refractor');
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const refractorExact = {
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'refractor': path.join(refractorRoot, 'lib/common.js'),
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'refractor/all': path.join(refractorRoot, 'lib/all.js'),
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'refractor/core': path.join(refractorRoot, 'lib/core.js'),
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};
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// @formatjs packages declare a wildcard export './locale-data/*' -> './locale-data/*'
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// (no .js extension). Metro resolves this to the exact extensionless path which doesn't
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// exist — the actual files are locale-data/<locale>.js — causing a warning for every
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// locale on every Metro startup. Intercept and redirect to the real .js file.
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const formatjsLocalePattern = /^@formatjs\/(intl-(?:pluralrules|numberformat|datetimeformat|listformat|relativetimeformat|displaynames))\/locale-data\/([^/]+)$/;
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const config = {
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resolver: {
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blockList: [
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/.*\.test\.(js|jsx|ts|tsx)$/,
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/.*\.spec\.(js|jsx|ts|tsx)$/,
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/__tests__\/.*/,
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/__mocks__\/.*/,
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],
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resolveRequest: (context, moduleName, platform) => {
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if (Object.prototype.hasOwnProperty.call(refractorExact, moduleName)) {
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return {type: 'sourceFile', filePath: refractorExact[moduleName]};
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}
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// refractor/*.* -> refractor/lang/*.js (exports "./*": "./lang/*.js")
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if (moduleName.startsWith('refractor/') && !moduleName.includes('/lang/')) {
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const lang = moduleName.slice('refractor/'.length);
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const filePath = path.join(refractorRoot, 'lang', `${lang}.js`);
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if (require('fs').existsSync(filePath)) {
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return {type: 'sourceFile', filePath};
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}
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}
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// @formatjs/**/locale-data/<locale> -> locale-data/<locale>.js
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const formatjsMatch = moduleName.match(formatjsLocalePattern);
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if (formatjsMatch) {
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const [, pkg, locale] = formatjsMatch;
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const filePath = path.join(__dirname, 'node_modules/@formatjs', pkg, 'locale-data', `${locale}.js`);
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if (require('fs').existsSync(filePath)) {
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return {type: 'sourceFile', filePath};
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}
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}
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return context.resolveRequest(context, moduleName, platform);
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},
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},
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transformer: {
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unstable_allowRequireContext: true,
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},
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};
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module.exports = mergeConfig(defaultConfig, config);
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