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113 lines
3.0 KiB
113 lines
3.0 KiB
const path = require('path')
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const {
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md5,
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parseEntry,
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normalizePath
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} = require('@dcloudio/uni-cli-shared')
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const {
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pagesJsonJsFileName
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} = require('@dcloudio/uni-cli-shared/lib/pages')
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const generateApp = require('./generate-app')
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const generateJson = require('./generate-json')
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const generateComponent = require('./generate-component')
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const emitFileCaches = {}
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function emitFile (filePath, source, compilation) {
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const emitFileMD5 = md5(filePath + source)
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if (emitFileCaches[filePath] !== emitFileMD5) {
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emitFileCaches[filePath] = emitFileMD5
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compilation.assets[filePath] = {
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size () {
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return Buffer.byteLength(source, 'utf8')
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},
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source () {
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return source
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}
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}
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}
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}
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function addSubPackagesRequire (compilation) {
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if (!process.env.UNI_OPT_SUBPACKAGES) {
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return
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}
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const assetsKeys = Object.keys(compilation.assets)
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Object.keys(process.UNI_SUBPACKAGES).forEach(root => {
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const subPackageVendorPath = normalizePath(path.join(root, 'common/vendor.js'))
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if (assetsKeys.indexOf(subPackageVendorPath) !== -1) {
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// TODO 理论上仅需在分包第一个 js 中添加 require common vendor，但目前不同平台可能顺序不一致，
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// 故 每个分包里的 js 里均添加一次 require
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assetsKeys.forEach(name => {
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if (
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path.extname(name) === '.js' &&
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name.indexOf(root + '/') === 0 &&
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name !== subPackageVendorPath
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) {
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const source =
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`require('${normalizePath(path.relative(path.dirname(name), subPackageVendorPath))}');` +
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compilation.assets[name].source()
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compilation.assets[name] = {
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size () {
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return Buffer.byteLength(source, 'utf8')
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},
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source () {
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return source
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}
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}
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}
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})
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}
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})
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}
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class WebpackUniMPPlugin {
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apply (compiler) {
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if (!process.env.UNI_USING_NATIVE && !process.env.UNI_USING_V3_NATIVE) {
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compiler.hooks.emit.tapPromise('webpack-uni-mp-emit', compilation => {
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return new Promise((resolve, reject) => {
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addSubPackagesRequire(compilation)
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generateJson(compilation)
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// app.js,app.wxss
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generateApp(compilation)
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.forEach(({
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file,
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source
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}) => emitFile(file, source, compilation))
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generateComponent(compilation)
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resolve()
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})
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})
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}
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compiler.hooks.invalid.tap('webpack-uni-mp-invalid', (fileName, changeTime) => {
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if (
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fileName &&
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typeof fileName === 'string'
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) { // 重新解析 entry
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const basename = path.basename(fileName)
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const deps = process.UNI_PAGES_DEPS || new Set()
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if (
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basename === 'pages.json' ||
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basename === pagesJsonJsFileName ||
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deps.has(normalizePath(fileName))
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) {
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try {
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parseEntry()
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} catch (e) {
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console.error(e)
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}
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}
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}
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})
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}
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}
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module.exports = WebpackUniMPPlugin
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