feat(ssr): support rpx

packages/uni-app/dist/uni-app.cjs.js

@@ -33,7 +33,7 @@ function proxy(target, track, trigger) {
 const globalData = {};
 const ssrServerRef = (value, key, shallow = false) => {
     assertKey(key, shallow);
-    const ctx = vue.useSSRContext();
+    const ctx = vue.getCurrentInstance() && vue.useSSRContext();
     let state;
     if (ctx) {
         const __uniSSR = ctx[UNI_SSR] || (ctx[UNI_SSR] = {});

packages/uni-app/src/ssr.ts

@@ -76,7 +76,7 @@ const globalData: Record<string, any> = {}
 
 const ssrServerRef: SSRRef = (value, key, shallow = false) => {
   assertKey(key, shallow)
-  const ctx = useSSRContext()
+  const ctx = getCurrentInstance() && useSSRContext()
   let state: Record<string, any>
   if (ctx) {
     const __uniSSR = ctx[UNI_SSR] || (ctx[UNI_SSR] = {})

packages/uni-cli-shared/src/json/manifest.ts

 import fs from 'fs'
 import path from 'path'
 
-import { once } from '@dcloudio/uni-shared'
+import { extend } from '@vue/shared'
+import { once, defaultRpx2Unit } from '@dcloudio/uni-shared'
 
 import { parseJson } from './json'
 
@@ -12,3 +13,8 @@ export const parseManifestJson = (inputDir: string) => {
 }
 
 export const parseManifestJsonOnce = once(parseManifestJson)
+
+export const parseRpx2UnitOnce = once((inputDir: string) => {
+  const { h5 } = parseManifestJsonOnce(inputDir)
+  return extend({}, defaultRpx2Unit, (h5 && h5.rpx) || {})
+})

packages/uni-shared/__tests__/dom/style.spec.ts

+import { createRpx2Unit } from '../../src/dom/style'
+
+const defaultRpx2Unit = {
+  unit: 'rem',
+  unitRatio: 10 / 320,
+  unitPrecision: 5,
+}
+const { unit, unitRatio, unitPrecision } = defaultRpx2Unit
+describe('Rpx2Unit', () => {
+  test('rem', () => {
+    const rpx2unit = createRpx2Unit(unit, unitRatio, unitPrecision)
+    expect(rpx2unit('10')).toBe('10')
+    expect(rpx2unit('10rpx')).toBe('0.3125rem')
+    expect(rpx2unit('10upx')).toBe('0.3125rem')
+    expect(rpx2unit('color:red;height:10rpx;width:100px')).toBe(
+      'color:red;height:0.3125rem;width:100px'
+    )
+  })
+})

packages/uni-shared/dist/uni-shared.cjs.js

@@ -4,6 +4,27 @@ Object.defineProperty(exports, '__esModule', { value: true });
 
 var shared = require('@vue/shared');
 
+const unitRE = new RegExp(`"[^"]+"|'[^']+'|url\\([^)]+\\)|(\\d*\\.?\\d+)[r|u]px`, 'g');
+function toFixed(number, precision) {
+    const multiplier = Math.pow(10, precision + 1);
+    const wholeNumber = Math.floor(number * multiplier);
+    return (Math.round(wholeNumber / 10) * 10) / multiplier;
+}
+const defaultRpx2Unit = {
+    unit: 'rem',
+    unitRatio: 10 / 320,
+    unitPrecision: 5,
+};
+function createRpx2Unit(unit, unitRatio, unitPrecision) {
+    return (val) => val.replace(unitRE, (m, $1) => {
+        if (!$1) {
+            return m;
+        }
+        const value = toFixed(parseFloat($1) * unitRatio, unitPrecision);
+        return value === 0 ? '0' : `${value}${unit}`;
+    });
+}
+
 function passive(passive) {
     return { passive };
 }
@@ -324,9 +345,11 @@ exports.UNI_SSR_DATA = UNI_SSR_DATA;
 exports.UNI_SSR_GLOBAL_DATA = UNI_SSR_GLOBAL_DATA;
 exports.UNI_SSR_STORE = UNI_SSR_STORE;
 exports.addFont = addFont;
+exports.createRpx2Unit = createRpx2Unit;
 exports.debounce = debounce;
 exports.decode = decode;
 exports.decodedQuery = decodedQuery;
+exports.defaultRpx2Unit = defaultRpx2Unit;
 exports.getEnvLocale = getEnvLocale;
 exports.getLen = getLen;
 exports.invokeArrayFns = invokeArrayFns;

packages/uni-shared/dist/uni-shared.d.ts

@@ -10,6 +10,8 @@ export declare const COMPONENT_PREFIX: string;
 
 export declare const COMPONENT_SELECTOR_PREFIX = "uni-";
 
+export declare function createRpx2Unit(unit: string, unitRatio: number, unitPrecision: number): (val: string) => string;
+
 export declare function debounce(fn: Function, delay: number): {
     (this: any): void;
     cancel(): void;
@@ -26,6 +28,12 @@ export declare function decode(text: string | number): string;
 
 export declare function decodedQuery(query?: Record<string, any>): Record<string, string>;
 
+export declare const defaultRpx2Unit: {
+    unit: string;
+    unitRatio: number;
+    unitPrecision: number;
+};
+
 export declare function getEnvLocale(): string;
 
 export declare function getLen(str?: string): number;
@@ -76,6 +84,8 @@ export declare function removeLeadingSlash(str: string): string;
 
 export declare const RESPONSIVE_MIN_WIDTH = 768;
 
+export declare type Rpx2UnitOptions = typeof defaultRpx2Unit;
+
 export declare const sanitise: (val: unknown) => any;
 
 declare function scrollTo_2(scrollTop: number | string, duration: number): void;

packages/uni-shared/dist/uni-shared.es.js

 import { isString, isHTMLTag, isSVGTag, isPlainObject, isArray } from '@vue/shared';
 
+const unitRE = new RegExp(`"[^"]+"|'[^']+'|url\\([^)]+\\)|(\\d*\\.?\\d+)[r|u]px`, 'g');
+function toFixed(number, precision) {
+    const multiplier = Math.pow(10, precision + 1);
+    const wholeNumber = Math.floor(number * multiplier);
+    return (Math.round(wholeNumber / 10) * 10) / multiplier;
+}
+const defaultRpx2Unit = {
+    unit: 'rem',
+    unitRatio: 10 / 320,
+    unitPrecision: 5,
+};
+function createRpx2Unit(unit, unitRatio, unitPrecision) {
+    return (val) => val.replace(unitRE, (m, $1) => {
+        if (!$1) {
+            return m;
+        }
+        const value = toFixed(parseFloat($1) * unitRatio, unitPrecision);
+        return value === 0 ? '0' : `${value}${unit}`;
+    });
+}
+
 function passive(passive) {
     return { passive };
 }
@@ -304,4 +325,4 @@ function getEnvLocale() {
     return (lang && lang.replace(/[.:].*/, '')) || 'en';
 }
 
-export { BUILT_IN_TAGS, COMPONENT_NAME_PREFIX, COMPONENT_PREFIX, COMPONENT_SELECTOR_PREFIX, NAVBAR_HEIGHT, ON_REACH_BOTTOM_DISTANCE, PLUS_RE, PRIMARY_COLOR, RESPONSIVE_MIN_WIDTH, TABBAR_HEIGHT, TAGS, UNI_SSR, UNI_SSR_DATA, UNI_SSR_GLOBAL_DATA, UNI_SSR_STORE, addFont, debounce, decode, decodedQuery, getEnvLocale, getLen, invokeArrayFns, isBuiltInComponent, isCustomElement, isNativeTag, normalizeDataset, normalizeTarget, once, parseQuery, passive, plusReady, removeLeadingSlash, sanitise, scrollTo, stringifyQuery, updateElementStyle };
+export { BUILT_IN_TAGS, COMPONENT_NAME_PREFIX, COMPONENT_PREFIX, COMPONENT_SELECTOR_PREFIX, NAVBAR_HEIGHT, ON_REACH_BOTTOM_DISTANCE, PLUS_RE, PRIMARY_COLOR, RESPONSIVE_MIN_WIDTH, TABBAR_HEIGHT, TAGS, UNI_SSR, UNI_SSR_DATA, UNI_SSR_GLOBAL_DATA, UNI_SSR_STORE, addFont, createRpx2Unit, debounce, decode, decodedQuery, defaultRpx2Unit, getEnvLocale, getLen, invokeArrayFns, isBuiltInComponent, isCustomElement, isNativeTag, normalizeDataset, normalizeTarget, once, parseQuery, passive, plusReady, removeLeadingSlash, sanitise, scrollTo, stringifyQuery, updateElementStyle };

packages/uni-shared/src/dom.ts → packages/uni-shared/src/dom/index.ts

 import { FontFaceDescriptors } from 'css-font-loading-module'
 import { isString } from '@vue/shared'
 
+export * from './style'
+
 export function passive(passive: boolean) {
   return { passive }
 }

packages/uni-shared/src/dom/style.ts

+const unitRE = new RegExp(
+  `"[^"]+"|'[^']+'|url\\([^)]+\\)|(\\d*\\.?\\d+)[r|u]px`,
+  'g'
+)
+
+function toFixed(number: number, precision: number) {
+  const multiplier = Math.pow(10, precision + 1)
+  const wholeNumber = Math.floor(number * multiplier)
+  return (Math.round(wholeNumber / 10) * 10) / multiplier
+}
+
+export const defaultRpx2Unit = {
+  unit: 'rem',
+  unitRatio: 10 / 320,
+  unitPrecision: 5,
+}
+
+export type Rpx2UnitOptions = typeof defaultRpx2Unit
+
+export function createRpx2Unit(
+  unit: string,
+  unitRatio: number,
+  unitPrecision: number
+) {
+  return (val: string) =>
+    val.replace(unitRE, (m, $1) => {
+      if (!$1) {
+        return m
+      }
+      const value = toFixed(parseFloat($1) * unitRatio, unitPrecision)
+      return value === 0 ? '0' : `${value}${unit}`
+    })
+}

packages/vite-plugin-uni/lib/ssr/env.js → packages/vite-plugin-uni/lib/ssr/define.js

-const context = (() => {
-  if (typeof globalThis !== 'undefined') {
-    return globalThis
-  } else if (typeof self !== 'undefined') {
-    return self
-  } else if (typeof window !== 'undefined') {
-    return window
-  } else {
-    return Function('return this')()
-  }
-})()
-// assign defines
 const defines = __DEFINES__
 Object.keys(defines).forEach((key) => {
   const segments = key.split('.')
-  let target = context
+  let target = globalThis
   for (let i = 0; i < segments.length; i++) {
     const segment = segments[i]
     if (i === segments.length - 1) {
@@ -23,3 +11,14 @@ Object.keys(defines).forEach((key) => {
     }
   }
 })
+const { createRpx2Unit } = require('@dcloudio/uni-shared')
+const rpx2unit = createRpx2Unit(__UNIT__, __UNIT_RATIO__, __UNIT_PRECISION__)
+const shared = require('@vue/shared')
+const oldStringifyStyle = shared.stringifyStyle
+shared.stringifyStyle = (styles) => rpx2unit(oldStringifyStyle(styles))
+const serverRender = require('@vue/server-renderer')
+const oldSsrRenderStyle = serverRender.ssrRenderStyle
+serverRender.ssrRenderStyle = (raw) =>
+  shared.isString(raw)
+    ? rpx2unit(oldSsrRenderStyle(raw))
+    : oldSsrRenderStyle(raw)

packages/vite-plugin-uni/src/config/css.ts

@@ -2,6 +2,8 @@ import path from 'path'
 import fs from 'fs-extra'
 import { UserConfig } from 'vite'
 import autoprefixer from 'autoprefixer'
+import { extend } from '@vue/shared'
+import { parseRpx2UnitOnce } from '@dcloudio/uni-cli-shared'
 import { VitePluginUniResolvedOptions } from '..'
 import { uniapp } from '../utils'
 
@@ -19,7 +21,12 @@ export function createCss(
   return {
     postcss: {
       plugins: [
-        uniapp({ page: options.platform === 'h5' ? 'uni-page-body' : 'body' }),
+        uniapp(
+          extend(
+            { page: options.platform === 'h5' ? 'uni-page-body' : 'body' },
+            parseRpx2UnitOnce(options.inputDir)
+          )
+        ),
         autoprefixer(),
       ],
     },

packages/vite-plugin-uni/src/config/define.ts

@@ -11,7 +11,7 @@ export function createDefine(
   { server }: UserConfig,
   { command }: ConfigEnv
 ): UserConfig['define'] {
-  const features = initFeatures({
+  return initFeatures({
     inputDir,
     command,
     platform,
@@ -19,8 +19,4 @@ export function createDefine(
     manifestJson: parseManifestJsonOnce(inputDir),
     ssr: !!(server && server.middlewareMode),
   })
-  if (server && server.middlewareMode) {
-    Object.assign(globalThis, features)
-  }
-  return features
 }

packages/vite-plugin-uni/src/configResolved/config.ts

 import { ResolvedConfig } from 'vite'
-import { parserOptions } from '@vue/compiler-dom'
-import { isNativeTag } from '@dcloudio/uni-shared'
+import { rewriteSsrNativeTag, rewriteSsrRenderStyle } from '../utils'
+
 // import alias from 'module-alias'
 export function initConfig(config: ResolvedConfig) {
-  if (config.server.middlewareMode) {
-    // TODO compiler-ssr时，传入的 isNativeTag 会被 @vue/compiler-dom 的 isNativeTag 覆盖
-    // https://github.com/vuejs/vue-next/blob/master/packages/compiler-ssr/src/index.ts#L36
-    parserOptions.isNativeTag = isNativeTag
+  if (
+    (config.command === 'serve' && config.server.middlewareMode) ||
+    (config.command === 'build' && config.build.ssr)
+  ) {
+    rewriteSsrNativeTag()
+    rewriteSsrRenderStyle(process.env.UNI_INPUT_DIR)
   }
   //   let ssr = (config as any).ssr as SSROptions
   //   if (!ssr) {

packages/vite-plugin-uni/src/configResolved/plugins/index.ts

@@ -140,7 +140,7 @@ export function initPlugins(
 
   addPlugin(
     plugins,
-    uniSSRPlugin(extend({ exclude: [...COMMON_EXCLUDE] }, options)),
+    uniSSRPlugin(config, extend({ exclude: [...COMMON_EXCLUDE] }, options)),
     'vite:vue'
   )
 

packages/vite-plugin-uni/src/configResolved/plugins/mainJs.ts

@@ -11,7 +11,12 @@ export function uniMainJsPlugin(
   const mainJsPath = mainPath + '.js'
   const mainTsPath = mainPath + '.ts'
   const pagesJsonJsPath = slash(path.resolve(options.inputDir, 'pages.json.js'))
-  const isSSR = config.server.middlewareMode
+  const isSSR =
+    config.command === 'serve'
+      ? !!config.server.middlewareMode
+      : config.command === 'build'
+      ? !!(config.build.ssr || config.build.ssrManifest)
+      : false
   return {
     name: 'vite:uni-main-js',
     transform(code, id, ssr) {

packages/vite-plugin-uni/src/configResolved/plugins/pagesJson.ts

@@ -33,13 +33,9 @@ export function uniPagesJsonPlugin(
       if (id.endsWith(PAGES_JSON_JS)) {
         return {
           code:
-            (config.define!.__UNI_FEATURE_RPX__
-              ? registerGlobalCode(ssr)
-              : '') +
-            (options.command === 'serve'
-              ? registerDevServerGlobalCode(ssr)
-              : '') +
-            generatePagesJsonCode(ssr, code, config, options),
+            (options.command === 'serve' || (options.command === 'build' && ssr)
+              ? registerGlobalCode(config, ssr)
+              : '') + generatePagesJsonCode(ssr, code, config, options),
           map: { mappings: '' },
         }
       }
@@ -100,15 +96,15 @@ function getGlobal(ssr?: boolean) {
   return ssr ? 'global' : 'window'
 }
 
-function registerGlobalCode(ssr?: boolean) {
+function registerGlobalCode(config: ResolvedConfig, ssr?: boolean) {
   const name = getGlobal(ssr)
-  return `import {upx2px} from '@dcloudio/uni-h5'
-${name}.rpx2px = upx2px
+  const rpx2pxCode = config.define!.__UNI_FEATURE_RPX__
+    ? `import {upx2px} from '@dcloudio/uni-h5'
+  ${name}.rpx2px = upx2px
 `
-}
-function registerDevServerGlobalCode(ssr?: boolean) {
-  const name = getGlobal(ssr)
-  return `import {uni,getCurrentPages,getApp,UniServiceJSBridge,UniViewJSBridge} from '@dcloudio/uni-h5'
+    : ''
+  return `${rpx2pxCode}
+import {uni,getCurrentPages,getApp,UniServiceJSBridge,UniViewJSBridge} from '@dcloudio/uni-h5'
 ${name}.getApp = getApp
 ${name}.getCurrentPages = getCurrentPages
 ${name}.uni = uni

packages/vite-plugin-uni/src/configResolved/plugins/ssr.ts

 import path from 'path'
 import debug from 'debug'
 import crypto from 'crypto'
-import { Plugin } from 'vite'
+import { Plugin, ResolvedConfig } from 'vite'
 
 import { walk } from 'estree-walker'
 import { CallExpression } from 'estree'
+import { OutputChunk } from 'rollup'
 import { createFilter } from '@rollup/pluginutils'
 import { MagicString } from '@vue/compiler-sfc'
+
+import { parseRpx2UnitOnce } from '@dcloudio/uni-cli-shared'
+
 import { UniPluginFilterOptions } from '.'
 import {
   isIdentifier,
   isCallExpression,
   isMemberExpression,
+  generateSSRDefineCode,
   generateSSREntryServerCode,
 } from '../../utils'
 
@@ -21,7 +26,10 @@ const KEYED_FUNC_RE = /(ssrRef|shallowSsrRef)/
 
 const ENTRY_SERVER_JS = 'entry-server.js'
 
-export function uniSSRPlugin(options: UniPluginFilterOptions): Plugin {
+export function uniSSRPlugin(
+  config: ResolvedConfig,
+  options: UniPluginFilterOptions
+): Plugin {
   const filter = createFilter(options.include, options.exclude)
   const entryServerJs = path.join(options.inputDir, ENTRY_SERVER_JS)
   const entryServerJsCode = generateSSREntryServerCode()
@@ -73,6 +81,18 @@ export function uniSSRPlugin(options: UniPluginFilterOptions): Plugin {
         map: s.generateMap().toString(),
       }
     },
+    generateBundle(_options, bundle) {
+      const chunk = bundle['entry-server.js'] as OutputChunk
+      if (chunk) {
+        chunk.code =
+          generateSSRDefineCode(
+            config.define!,
+            parseRpx2UnitOnce(options.inputDir)
+          ) +
+          '\n' +
+          chunk.code
+      }
+    },
   }
 }
 

packages/vite-plugin-uni/src/utils/features.ts

 import fs from 'fs'
 import path from 'path'
 import { ConfigEnv } from 'vite'
-import { isArray } from '@vue/shared'
+import { extend, isArray } from '@vue/shared'
 
 interface ProjectFeatures {}
 interface PagesFeatures {
@@ -245,7 +245,7 @@ export function initFeatures(options: InitFeaturesOptions) {
     initPagesFeature(options),
     initProjectFeature(options)
   )
-  return {
+  const features = {
     __UNI_FEATURE_WX__: wx, // 是否启用小程序的组件实例 API，如：selectComponent 等（uni-core/src/service/plugin/appConfig）
     __UNI_FEATURE_WXS__: wxs, // 是否启用 wxs 支持，如：getComponentDescriptor 等（uni-core/src/view/plugin/appConfig）
     __UNI_FEATURE_RPX__: rpx, // 是否启用运行时 rpx 支持
@@ -272,4 +272,9 @@ export function initFeatures(options: InitFeaturesOptions) {
     __UNI_FEATURE_NAVIGATIONBAR_SEARCHINPUT__: navigationBarSearchInput, // 是否启用标题栏搜索框
     __UNI_FEATURE_NAVIGATIONBAR_TRANSPARENT__: navigationBarTransparent, // 是否启用透明标题栏
   }
+  // ssr nodejs features
+  if (options.ssr) {
+    extend(globalThis, features)
+  }
+  return features
 }

packages/vite-plugin-uni/src/utils/postcss.ts

@@ -2,6 +2,8 @@ import { extend } from '@vue/shared'
 import { rule, Rule, Declaration, Plugin } from 'postcss'
 import selectorParser from 'postcss-selector-parser'
 import {
+  createRpx2Unit,
+  defaultRpx2Unit,
   isBuiltInComponent,
   COMPONENT_SELECTOR_PREFIX,
 } from '@dcloudio/uni-shared'
@@ -13,12 +15,12 @@ interface UniAppCssProcessorOptions {
   unitPrecision?: number // 单位精度，默认5
 }
 
-const defaultUniAppCssProcessorOptions = {
+const defaultUniAppCssProcessorOptions = extend(
+  {
     page: 'body',
-  unit: 'rem',
-  unitRatio: 10 / 320,
-  unitPrecision: 5,
-}
+  },
+  defaultRpx2Unit
+)
 
 const BG_PROPS = [
   'background',
@@ -34,7 +36,7 @@ const BG_PROPS = [
 
 function transform(
   selector: selectorParser.Node,
-  opts: UniAppCssProcessorOptions,
+  page: string,
   state: { bg: boolean }
 ) {
   if (selector.type !== 'tag') {
@@ -44,7 +46,6 @@ function transform(
   if (isBuiltInComponent(value)) {
     selector.value = COMPONENT_SELECTOR_PREFIX + value
   } else if (value === 'page') {
-    const { page } = opts
     if (!page) {
       return
     }
@@ -67,52 +68,40 @@ function createBodyBackgroundRule(origRule: Rule) {
   }
 }
 
-function walkRules(opts: UniAppCssProcessorOptions) {
+function walkRules(page: string) {
   return (rule: Rule) => {
     const state = { bg: false }
     rule.selector = selectorParser((selectors) =>
-      selectors.walk((selector) => transform(selector, opts, state))
+      selectors.walk((selector) => transform(selector, page, state))
     ).processSync(rule.selector)
     state.bg && createBodyBackgroundRule(rule)
   }
 }
 
-const unitRE = new RegExp(
-  `"[^"]+"|'[^']+'|url\\([^)]+\\)|(\\d*\\.?\\d+)[r|u]px`,
-  'g'
-)
-
-function toFixed(number: number, precision: number) {
-  const multiplier = Math.pow(10, precision + 1)
-  const wholeNumber = Math.floor(number * multiplier)
-  return (Math.round(wholeNumber / 10) * 10) / multiplier
-}
-
-function walkDecls(opts: Required<UniAppCssProcessorOptions>) {
+function walkDecls(rpx2unit: ReturnType<typeof createRpx2Unit>) {
   return (decl: Declaration) => {
     const { value } = decl
     if (value.indexOf('rpx') === -1 && value.indexOf('upx') === -1) {
       return
     }
-    decl.value = decl.value.replace(unitRE, (m, $1) => {
-      if (!$1) {
-        return m
-      }
-      const value = toFixed(parseFloat($1) * opts.unitRatio, opts.unitPrecision)
-      return value === 0 ? '0' : `${value}${opts.unit}`
-    })
+    decl.value = rpx2unit(decl.value)
   }
 }
 
 export const uniapp = (opts?: UniAppCssProcessorOptions) => {
-  const options = extend({}, defaultUniAppCssProcessorOptions, opts || {})
+  const { page, unit, unitRatio, unitPrecision } = extend(
+    {},
+    defaultUniAppCssProcessorOptions,
+    opts || {}
+  )
+  const rpx2unit = createRpx2Unit(unit, unitRatio, unitPrecision)
   return {
     postcssPlugin: 'uni-app',
     prepare() {
       return {
         OnceExit(root) {
-          root.walkDecls(walkDecls(options))
-          root.walkRules(walkRules(options))
+          root.walkDecls(walkDecls(rpx2unit))
+          root.walkRules(walkRules(page))
         },
       }
     },

packages/vite-plugin-uni/src/utils/ssr.ts

 import path from 'path'
 import fs from 'fs-extra'
+import { isString, NormalizedStyle } from '@vue/shared'
+import {
+  isNativeTag,
+  createRpx2Unit,
+  Rpx2UnitOptions,
+} from '@dcloudio/uni-shared'
+import { parseRpx2UnitOnce } from '@dcloudio/uni-cli-shared'
 
 function serializeDefine(define: Record<string, any>): string {
   let res = `{`
   for (const key in define) {
     const val = define[key]
     res += `${JSON.stringify(key)}: ${
-      typeof val === 'string' ? `(${val})` : JSON.stringify(val)
+      typeof val === 'string' && !key.startsWith('process.env.') // process.env.* 必须序列化为字符串
+        ? `(${val})`
+        : JSON.stringify(val)
     }, `
   }
   return res + `}`
 }
 
-export function generateSSREnvCode(define: Record<string, any>): string {
+export function generateSSRDefineCode(
+  define: Record<string, any>,
+  { unit, unitRatio, unitPrecision }: Rpx2UnitOptions
+): string {
   return fs
-    .readFileSync(path.join(__dirname, '../../lib/ssr/env.js'), 'utf8')
+    .readFileSync(path.join(__dirname, '../../lib/ssr/define.js'), 'utf8')
     .replace('__DEFINES__', serializeDefine(define))
+    .replace('__UNIT__', JSON.stringify(unit))
+    .replace('__UNIT_RATIO__', JSON.stringify(unitRatio))
+    .replace('__UNIT_PRECISION__', JSON.stringify(unitPrecision))
 }
 
 export function generateSSREntryServerCode() {
@@ -24,3 +39,24 @@ export function generateSSREntryServerCode() {
     'utf8'
   )
 }
+
+export function rewriteSsrNativeTag() {
+  const { parserOptions } = require('@vue/compiler-dom')
+  // TODO compiler-ssr时，传入的 isNativeTag 会被 @vue/compiler-dom 的 isNativeTag 覆盖
+  // https://github.com/vuejs/vue-next/blob/master/packages/compiler-ssr/src/index.ts#L36
+  parserOptions.isNativeTag = isNativeTag
+}
+
+export function rewriteSsrRenderStyle(inputDir: string) {
+  const { unit, unitRatio, unitPrecision } = parseRpx2UnitOnce(inputDir)
+  const rpx2unit = createRpx2Unit(unit, unitRatio, unitPrecision)
+  const shared = require('@vue/shared')
+  const oldStringifyStyle = shared.stringifyStyle
+  shared.stringifyStyle = (styles: NormalizedStyle | undefined) =>
+    rpx2unit(oldStringifyStyle(styles))
+  const serverRender = require('@vue/server-renderer')
+  const oldSsrRenderStyle = serverRender.ssrRenderStyle
+  // 仅对字符串类型做转换，非字符串类型，通过 stringifyStyle 转换
+  serverRender.ssrRenderStyle = (raw: unknown) =>
+    isString(raw) ? rpx2unit(oldSsrRenderStyle(raw)) : oldSsrRenderStyle(raw)
+}