mirror of
https://github.com/nuxt/nuxt.git
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198 lines
8.3 KiB
TypeScript
198 lines
8.3 KiB
TypeScript
import { fileURLToPath } from 'node:url'
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import { readFileSync, rmdirSync, unlinkSync, writeFileSync } from 'node:fs'
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import { copyFile } from 'node:fs/promises'
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import { basename, dirname, join } from 'pathe'
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import type { Plugin } from 'vite'
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// @ts-expect-error https://github.com/GoogleChromeLabs/critters/pull/151
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import Critters from 'critters'
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import { genObjectFromRawEntries } from 'knitwork'
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import htmlMinifier from 'html-minifier'
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import { fdir } from 'fdir'
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import { camelCase } from 'scule'
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import genericMessages from '../templates/messages.json'
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const r = (path: string) => fileURLToPath(new URL(join('..', path), import.meta.url))
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const replaceAll = (input: string, search: string | RegExp, replace: string) => input.split(search).join(replace)
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export const RenderPlugin = () => {
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let outputDir: string
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return <Plugin> {
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name: 'render',
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configResolved (config) {
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outputDir = r(config.build.outDir)
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},
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enforce: 'post',
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async writeBundle () {
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const critters = new Critters({ path: outputDir })
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const htmlFiles = new fdir().withFullPaths().glob('**/*.html').crawl(join(outputDir, 'templates')).sync()
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const templateExports: Array<{
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exportName: string
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templateName: string
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types: string
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}> = []
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for (const fileName of htmlFiles) {
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// Infer template name
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const templateName = basename(dirname(fileName))
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// eslint-disable-next-line no-console
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console.log('Processing', templateName)
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// Read source template
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let html = readFileSync(fileName, 'utf-8')
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const isCompleteHTML = html.includes('<!DOCTYPE html>')
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if (html.includes('<html')) {
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// Apply critters to inline styles
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html = await critters.process(html)
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}
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// We no longer need references to external CSS
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html = html.replace(/<link[^>]*>/g, '')
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// Inline SVGs
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const svgSources: string[] = []
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for (const [_, src] of html.matchAll(/src="([^"]+)"|url([^)]+)/g)) {
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if (src?.match(/\.svg$/)) {
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svgSources.push(src)
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}
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}
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for (const src of svgSources) {
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const svg = readFileSync(join(outputDir, src), 'utf-8')
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const base64Source = `data:image/svg+xml;charset=utf-8,${encodeURIComponent(svg)}`
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html = replaceAll(html, src, base64Source)
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}
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// Inline our scripts
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const scriptSources: [string, string][] = []
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for (const [block, src] of html.matchAll(/<script[^>]*src="([^"]*)"[^>]*>[\s\S]*?<\/script>/g)) {
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if (src?.match(/^\/.*\.js$/)) {
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scriptSources.push([block, src])
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}
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}
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for (const [scriptBlock, src] of scriptSources) {
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let contents = readFileSync(join(outputDir, src), 'utf-8')
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contents = replaceAll(contents, '/* empty css */', '').trim()
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html = html.replace(scriptBlock, contents.length ? `<script>${contents}</script>` : '')
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}
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// Minify HTML
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html = htmlMinifier.minify(html, { collapseWhitespace: true })
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if (!isCompleteHTML) {
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html = html.replace('<html><head></head><body>', '')
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html = html.replace('</body></html>', '')
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}
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// Load messages
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const messages = JSON.parse(readFileSync(r(`templates/${templateName}/messages.json`), 'utf-8'))
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// Serialize into a js function
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const chunks = html.split(/\{{2,3}[^{}]+\}{2,3}/g).map(chunk => JSON.stringify(chunk))
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const hasMessages = chunks.length > 1
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let templateString = chunks.shift()
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for (const [_, expression] of html.matchAll(/\{{2,3}([^{}]+)\}{2,3}/g)) {
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if (expression) {
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templateString += ` + (${expression.trim()}) + ${chunks.shift()}`
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}
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}
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if (chunks.length > 0) {
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templateString += ' + ' + chunks.join(' + ')
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}
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const functionalCode = [
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hasMessages ? `export type DefaultMessages = Record<${Object.keys({ ...genericMessages, ...messages }).map(a => `"${a}"`).join(' | ') || 'string'}, string | boolean | number >` : '',
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hasMessages ? `const _messages = ${JSON.stringify({ ...genericMessages, ...messages })}` : '',
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`export const template = (${hasMessages ? 'messages: Partial<DefaultMessages>' : ''}) => {`,
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hasMessages ? ' messages = { ..._messages, ...messages }' : '',
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` return ${templateString}`,
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'}',
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].join('\n')
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const templateContent = html
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.match(/<body[^>]*>([\s\S]*)<\/body>/)?.[0]
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.replace(/(?<=<\/|<)body/g, 'div')
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.replace(/messages\./g, '')
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.replace(/<script[^>]*>([\s\S]*?)<\/script>/g, '')
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.replace(/<a href="(\/[^"]*)"([^>]*)>([\s\S]*)<\/a>/g, '<NuxtLink to="$1"$2>\n$3\n</NuxtLink>')
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.replace(/<([^>]+) ([a-z]+)="([^"]*)(\{\{\s*(\w+)\s*\}\})([^"]*)"([^>]*)>/g, '<$1 :$2="`$3${$5}$6`"$7>')
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.replace(/>\{\{\s*(\w+)\s*\}\}<\/[\w-]*>/g, ' v-text="$1" />')
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.replace(/>\{\{\{\s*(\w+)\s*\}\}\}<\/[\w-]*>/g, ' v-html="$1" />')
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// We are not matching <link> <script> and <meta> tags as these aren't used yet in nuxt/ui
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// and should be taken care of wherever this SFC is used
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const title = html.match(/<title[^>]*>([\s\S]*)<\/title>/)?.[1]?.replace(/\{\{([\s\S]+?)\}\}/g, (r) => {
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return `\${${r.slice(2, -2)}}`.replace(/messages\./g, 'props.')
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})
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const styleContent = Array.from(html.matchAll(/<style[^>]*>([\s\S]*?)<\/style>/g)).map(block => block[1]).join('\n')
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const globalStyles = styleContent.replace(/(\.[^{\d][^{]*\{[^}]*\})+.?/g, (r) => {
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const lastChar = r[r.length - 1]
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if (lastChar && !['}', '.', '@', '*', ':'].includes(lastChar)) {
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return ';' + lastChar
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}
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return lastChar || ''
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}).replace(/@media[^{]*\{\}/g, '')
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const inlineScripts = Array.from(html.matchAll(/<script>([\s\S]*?)<\/script>/g))
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.map(block => block[1])
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.filter(i => !i.includes('const t=document.createElement("link")'))
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const props = genObjectFromRawEntries(Object.entries({ ...genericMessages, ...messages }).map(([key, value]) => [key, {
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type: typeof value === 'string' ? 'String' : typeof value === 'number' ? 'Number' : typeof value === 'boolean' ? 'Boolean' : 'undefined',
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default: JSON.stringify(value),
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}]))
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const vueCode = [
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'<script setup>',
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title && 'import { useHead } from \'#imports\'',
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`const props = defineProps(${props})`,
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title && 'useHead(' + genObjectFromRawEntries([
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['title', `\`${title}\``],
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['script', inlineScripts.map(s => ({ children: `\`${s}\`` }))],
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['style', [{ children: `\`${globalStyles}\`` }]],
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]) + ')',
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'</script>',
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'<template>',
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templateContent,
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'</template>',
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'<style scoped>',
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styleContent.replace(globalStyles, ''),
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'</style>',
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].filter(Boolean).join('\n').trim()
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// Generate types
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const types = [
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`export type DefaultMessages = Record<${Object.keys(messages).map(a => `"${a}"`).join(' | ') || 'string'}, string | boolean | number >`,
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'declare const template: (data: Partial<DefaultMessages>) => string',
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'export { template }',
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].join('\n')
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// Register exports
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templateExports.push({
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exportName: camelCase(templateName),
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templateName,
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types,
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})
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// Write new template
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writeFileSync(fileName.replace('/index.html', '.ts'), functionalCode)
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writeFileSync(fileName.replace('/index.html', '.vue'), vueCode)
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// Remove original html file
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unlinkSync(fileName)
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rmdirSync(dirname(fileName))
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}
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// we manually copy files across rather than using symbolic links for better windows support
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const nuxtRoot = r('../nuxt')
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for (const file of ['error-404.vue', 'error-500.vue', 'error-dev.vue', 'welcome.vue']) {
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await copyFile(r(`dist/templates/${file}`), join(nuxtRoot, 'src/app/components', file))
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}
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for (const file of ['error-500.ts', 'error-dev.ts']) {
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await copyFile(r(`dist/templates/${file}`), join(nuxtRoot, 'src/core/runtime/nitro', file))
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}
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},
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}
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}
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