49 行
1.4 KiB
JavaScript
49 行
1.4 KiB
JavaScript
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const { hasBuildInfo, getCacheFile, isPwdFile } = require('./build.js');
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const bundleBuInfo = require('./config/bundleBuInfo.json');
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const {mergeConfig, getDefaultConfig} = require('@react-native/metro-config');
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function postProcessModulesFilter(module) {
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if (
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module.path.indexOf('__prelude__') >= 0 ||
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module.path.indexOf('polyfills') >= 0
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) {
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return false;
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}
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return !hasBuildInfo('./config/bundleCommonInfo.json', module.path);
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}
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// 不要使用 string 会导致 bundle 体积陡增
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function createModuleIdFactory() {
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// 如果是业务 模块请以 10000000 来自增命名
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const fileToIdMap = new Map();
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let nextId = 10000000;
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let isFirst = false;
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return (path) => {
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if (getCacheFile('./config/bundleCommonInfo.json', path)) {
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return getCacheFile('./config/bundleCommonInfo.json', path);
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}
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if (!isFirst && isPwdFile(path)) {
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nextId = bundleBuInfo[isPwdFile(path)];
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isFirst = true;
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}
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let id = fileToIdMap.get(path);
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if (typeof id !== 'number') {
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id = nextId++;
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fileToIdMap.set(path, id);
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}
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return id;
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};
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}
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const config = {
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serializer: {
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createModuleIdFactory: createModuleIdFactory, // 给 bundle 一个id 避免冲突 cli 源码中这个id 是从1 开始 自增的
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processModuleFilter: postProcessModulesFilter, // 返回false 就不会build 进去
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},
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};
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module.exports = mergeConfig(getDefaultConfig(__dirname), config);
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