408 lines
10 KiB
JavaScript
408 lines
10 KiB
JavaScript
/**
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* {}
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* @author yutent<yutent.io@gmail.com>
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* @date 2022/09/06 14:43:01
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*/
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import fs from 'iofs'
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import scss from '@bytedo/sass'
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import { createHash, randomUUID } from 'crypto'
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import Es from 'esbuild'
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import { join } from 'path'
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import { compile } from '@vue/compiler-dom'
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import { red, cyan, blue } from 'kolorist'
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function uuid() {
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return randomUUID().slice(-8)
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}
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import {
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JS_EXP,
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STYLE_EXP,
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HTML_EXP,
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CSS_SHEET_EXP,
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HMR_SCRIPT,
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V_DEEP,
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PERCENT_EXP
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} from './constants.js'
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const OPTIONS = {
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style: 'compressed'
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}
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// 修正路径合并 避免在windows下被转义
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function urlJoin(...args) {
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return join(...args).replace(/\\/g, '/')
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}
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function md5(str = '') {
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let sum = createHash('md5')
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sum.update(str, 'utf8')
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return sum.digest('hex').slice(0, 8)
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}
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function parseVDeep(curr, val, scoped) {
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let res = V_DEEP.exec(curr)
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if (res) {
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scoped && (val = val.replace(/\[data\-[^\]]+\]/g, ''))
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return `${res[1] + res[2]} ${val}`
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} else {
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return `${curr} ${val}`
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}
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}
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function scopeCss(css = '', hash) {
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return css.replace(CSS_SHEET_EXP, (m, selector) => {
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if (!selector.startsWith('@')) {
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selector = selector.split(',')
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selector = selector
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.map(s => {
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// 针对 @keyframe的处理
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if (s === 'from' || s === 'to' || PERCENT_EXP.test(s)) {
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return s
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}
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let tmp = s.split(' ')
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let output = ''
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let last
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let scoped = false
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while ((last = tmp.pop())) {
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if (scoped) {
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if (last.startsWith(':')) {
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output = parseVDeep(last, output, true)
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} else {
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output = `${last} ${output}`
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}
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} else {
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if (last.includes(':')) {
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if (last.startsWith(':')) {
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output = parseVDeep(last, output)
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} else {
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scoped = true
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last = last.replace(':', `[data-${hash}]:`)
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output = `${last} ${output}`
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}
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} else {
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scoped = true
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output = `${last}[data-${hash}] ${output}`
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}
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}
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}
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return output
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})
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.join(', ')
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}
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return selector + '{'
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})
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}
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/**
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* 编译scss为css
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* @param file <String> 文件路径或scss代码
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* @param inject <String> 要注入的scss代码
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*/
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export function compileScss(file, inject = '') {
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try {
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if (fs.isfile(file)) {
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return scss.compile(file, OPTIONS).css.trim()
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} else {
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return scss.compileString(inject + file, OPTIONS).css.trim()
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}
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} catch (err) {
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console.error(err)
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}
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}
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/**
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* 解析js
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* 主要是处理js的依赖引用
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* @param code <String> js代码
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*/
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export function parseJs(
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code = '',
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imports,
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{ IS_MPA, currentPage, IS_ENTRY, DEPLOY_PATH } = {},
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filename
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) {
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let fixedStyle = '\n\n'
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let ASSETS_DIR = '/@/'
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let isBuild = process.env.NODE_ENV === 'production'
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if (isBuild) {
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ASSETS_DIR = '/assets/'
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}
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if (IS_ENTRY) {
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fixedStyle += 'const __sheets__ = [...document.adoptedStyleSheets];\n'
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}
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try {
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code = Es.transformSync(code).code || ''
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} catch (e) {
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let err = e.errors.pop()
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console.log('%s: %s', red('Uncaught SyntaxError'), err.text)
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console.log(
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' @ line %d: %s',
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err.location.line,
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cyan(err.location.lineText)
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)
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console.log(
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' @ %s:%d:%d',
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blue(filename),
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err.location.line,
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err.location.column
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)
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}
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return (
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code
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.replace(/\r\n/g, '\n')
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.replace(/process\.env\.NODE_ENV/g, `'${process.env.NODE_ENV}'`)
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.replace(
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/import ([\w\W]*?) from (["'])(.*?)\2/g,
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function (m, alias, q, name) {
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if (name.startsWith('@/')) {
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name = name.replace('@/', urlJoin(DEPLOY_PATH, ASSETS_DIR))
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}
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if (!imports[name]) {
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if (name.startsWith('./') || name.startsWith('../')) {
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if (IS_ENTRY) {
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if (IS_MPA) {
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name = `pages/${currentPage}/` + name
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}
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name = urlJoin(DEPLOY_PATH, ASSETS_DIR, name)
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}
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} else if (
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name.startsWith('/') &&
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!name.startsWith('//') &&
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!name.startsWith(urlJoin(DEPLOY_PATH, ASSETS_DIR))
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) {
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name = name.replace(/^\//, urlJoin(DEPLOY_PATH, ASSETS_DIR))
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}
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if (!name.endsWith('.js') && !name.endsWith('.vue')) {
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if (name.includes('components')) {
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name += '.vue'
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} else {
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name += '.js'
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}
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}
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}
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if (isBuild) {
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name = name.replace(/\.vue$/, '.js')
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}
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return `import ${alias} from '${name}'`
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}
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)
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.replace(/import\((['"])(.*?)\1\)/g, function (m, q, name) {
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if (isBuild) {
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name = name.replace(/\.vue$/, '.js')
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}
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if (name.startsWith('@/')) {
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name = name.replace('@/', urlJoin(DEPLOY_PATH, ASSETS_DIR))
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}
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return `import('${name}')`
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})
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.replace(/import (["'])(.*?)\1/g, function (m, q, name) {
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if (name.endsWith('.css') || name.endsWith('.scss')) {
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if (name.startsWith('@/')) {
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name = name.replace('@/', urlJoin(DEPLOY_PATH, ASSETS_DIR))
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}
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if (isBuild) {
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name = name.replace(/\.scss/, '.css')
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}
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let tmp = `style_${uuid()}`
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fixedStyle += `__sheets__.push(${tmp})\n`
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// 修正那反人类的windows路径
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return `import ${tmp} from '${name}' assert { type: 'css' }\n${tmp}.path = '${name.replace(
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/\\/g,
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'/'
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)}'`
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} else {
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if (name.startsWith('@/')) {
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name = name.replace('@/', urlJoin(DEPLOY_PATH, ASSETS_DIR))
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}
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//
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if (!imports[name]) {
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if (name.startsWith('./') || name.startsWith('../')) {
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if (IS_ENTRY) {
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if (IS_MPA) {
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name = `${currentPage}/` + name
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}
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name = urlJoin(DEPLOY_PATH, ASSETS_DIR, name)
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}
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} else if (
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name.startsWith('/') &&
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!name.startsWith('//') &&
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!name.startsWith(urlJoin(DEPLOY_PATH, ASSETS_DIR))
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) {
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name = name.replace(/^\//, urlJoin(DEPLOY_PATH, ASSETS_DIR))
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}
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if (!name.endsWith('.js') && !name.endsWith('.vue')) {
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name += '.js'
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}
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}
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return `import '${name}'`
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}
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}) +
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fixedStyle +
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(IS_ENTRY ? '\ndocument.adoptedStyleSheets = __sheets__' : '')
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)
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}
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/**
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* 将vue转为js
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* @param file <String> 文件路径
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* @return <String> 返回转换后的js代码
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*/
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export function compileVue(file, imports, options = {}) {
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let filename = file.slice(options.SOURCE_DIR.length).replace(/\\/g, '/')
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let code = (fs.cat(file) || '').toString().replace(/\r\n/g, '\n')
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let CACHE = options.CACHE || {}
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let output = '',
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scoped = false
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let js = code.match(JS_EXP)
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let scss = [...code.matchAll(STYLE_EXP)]
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let html = code.match(HTML_EXP) || ['', '']
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let hash = md5(file)
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let scopeId = 'data-' + hash
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scss = scss
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.map(it => {
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let css
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if (it.length > 2) {
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css = compileScss(it[2], options.INJECT_SCSS)
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if (it[1].includes('scoped')) {
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scoped = true
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css = scopeCss(css, hash)
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}
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} else {
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css = compileScss(it[1], options.INJECT_SCSS)
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}
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return css
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})
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.join(' ')
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js = js ? js[1] : ''
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try {
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html = compile(html[1], {
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mode: 'module',
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prefixIdentifiers: true,
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hoistStatic: true,
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cacheHandlers: true,
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scopeId: scoped ? scopeId : void 0,
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sourceMap: false,
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isCustomElement: tag => tag.startsWith('wc-')
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}).code.replace('export function render', 'function render')
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} catch (err) {
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let tmp = html[1].split('\n')
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let line = tmp[err.loc.start.line - 1]
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console.log('%s: %s', red('SyntaxError'), red(err.message))
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console.log(
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' @ %s%s%s',
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line.slice(0, err.loc.start.column - 1),
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red(err.loc.source),
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line.slice(err.loc.end.column - 1)
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)
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console.log(
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' @ (%s:%d:%d)\n',
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file,
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err.loc.start.line,
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err.loc.start.column
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)
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html = `
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import { openBlock as _openBlock, createElementBlock as _createElementBlock } from "vue"
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function render(_ctx, _cache) {
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return (_openBlock(), _createElementBlock("div", null, "SyntaxError: ${err.message}"))
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}
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`
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}
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html = html
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.replace(/import .* from "vue"/, str => {
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output += str + '\n'
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return ''
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})
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.trim()
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if (CACHE[file]) {
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CACHE[file] = {
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changed: CACHE[file].js !== js || CACHE[file].html !== html,
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js,
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html
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}
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} else {
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CACHE[file] = { changed: false, js, html }
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}
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output += parseJs(js, imports, options, file).replace(
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'export default {',
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`\nconst __sheets__ = [...document.adoptedStyleSheets]\n${html}\n\nconst __sfc__ = {\n render,\n`
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)
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if (scss) {
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CACHE[file].css = scss
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// 修正那反人类的windows路径
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output += `
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{
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let stylesheet = new CSSStyleSheet()
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stylesheet.path = '${filename}'
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stylesheet.replaceSync(\`${scss}\`)
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__sheets__.push(stylesheet)
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}
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document.adoptedStyleSheets = __sheets__
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`
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}
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if (scoped) {
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output += `__sfc__.__scopeId = '${scopeId}'\n`
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}
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output += `__sfc__.__file = '${filename}'\nexport default __sfc__`
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return output
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}
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/**
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* 解析模板html
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*/
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export function parseHtml(html, { page, imports, entry }) {
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return html
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.replace(/\r\n/g, '\n')
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.replace(
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'</head>',
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`${
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process.env.NODE_ENV === 'development'
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? ` <script>${
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Es.transformSync(HMR_SCRIPT, { minify: true }).code
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}</script>`
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: ''
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}</head>`
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)
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.replace('{{title}}', page.title || '')
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.replace('{{keywords}}', page.keywords || '')
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.replace('{{description}}', page.description || '')
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.replace('{{importmap}}', JSON.stringify({ imports }))
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.replace(
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'<script src="main.js"></script>',
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`<script type="module">\n${entry}\n</script>`
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)
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.replace(/\{\{#if(.*?)\}\}([\w\W]*?)\{\{#\/if\}\}/g, (m, c, code) => {
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let res = Function('return ' + c)()
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return res ? code : ''
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})
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.replace(/process\.env\.NODE_ENV/g, `'${process.env.NODE_ENV}'`)
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}
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