56 lines
2.4 KiB
JavaScript
56 lines
2.4 KiB
JavaScript
const collectWxComponentUsedStatus = require('./collect-wx-component-used-status');
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const analyzeGoDirection = require('./analyze-go-direction');
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const { collectPkgCopyFiles, copyAllWxComponentsFiles } = require('../util');
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const { wxComponentsStr, appJsonFileName, mainPkgName } = require('../constant');
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const Analyze = require('../analyze');
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// 仅仅针对 [主包]和[普通分包]用到[原生组件]进行按需加载
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class Index extends Analyze {
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init () {
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const emitFileMap = this.emitFileMap;
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// 1. 获取app.json
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const appJson = emitFileMap.get(appJsonFileName);
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// 2. 获取每个原生组件（wxComponents）被各分包(主包和普通分包)的引用情况
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const usageByPkgMap = collectWxComponentUsedStatus(emitFileMap, appJson);
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// 3 处理主包和普通分包中的组件引用情况
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const {
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copyForNormal,
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copyForMain,
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} = analyzeGoDirection(usageByPkgMap, appJson, emitFileMap);
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// 提示app.json中声明的未被使用的全局原生组件（wxcomponents)
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// const rootToWxComponents = Object.assign({}, copyForNormal, copyForMain);
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const globalWxComponents = appJson.usingComponents || {};
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const wxComponentPaths = [...copyForMain.mainPkg]
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// 主包和普通分包用到的原生组件
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Object.keys(globalWxComponents).forEach(globalWxComponentKey => {
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const globalWxComponentPath = globalWxComponents[globalWxComponentKey];
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const isWxComponents = globalWxComponentPath.startsWith(`/${wxComponentsStr}`);
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if (isWxComponents && !wxComponentPaths.includes(globalWxComponentPath)) {
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delete globalWxComponents[globalWxComponentKey];
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// console.log(`global WxComponent(${globalWxComponentKey}) will be removed from global component`);
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}
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});
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// 4. 经过3、4步骤获得每个分包引用的组件情况，对于每个wxcomponent进行依赖分析和提取
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const fileCache = {};
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this.getDependFiles(copyForNormal, fileCache);
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this.getDependFiles(copyForMain, fileCache);
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// 5.1 文件复制: 普通分包
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Object.keys(copyForNormal).forEach(pkgRot => {
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const copyFiles = collectPkgCopyFiles(copyForNormal[pkgRot], fileCache, 'normal pkg');
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copyAllWxComponentsFiles(pkgRot, copyFiles);
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});
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// 5.2 文件复制: 主包
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const mainPkgCopyFiles = collectPkgCopyFiles(copyForMain[mainPkgName], fileCache, 'normal pkg');
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copyAllWxComponentsFiles('', mainPkgCopyFiles);
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}
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}
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module.exports = Index;
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