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vite.config.js
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vite.config.js
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const { resolve } = require('path')
/**
* @type {import('vite').UserConfig}
*/
module.exports = {
base: './',
build: {
rollupOptions: {
input: {
main: resolve(__dirname, 'index.html'),
nested: resolve(__dirname, 'nested/index.html'),
scriptAsync: resolve(__dirname, 'scriptAsync.html'),
scriptMixed: resolve(__dirname, 'scriptMixed.html'),
emptyAttr: resolve(__dirname, 'emptyAttr.html'),
link: resolve(__dirname, 'link.html'),
'link/target': resolve(__dirname, 'index.html'),
zeroJS: resolve(__dirname, 'zeroJS.html'),
noHead: resolve(__dirname, 'noHead.html'),
noBody: resolve(__dirname, 'noBody.html'),
inlinea: resolve(__dirname, 'inline/shared_a.html'),
inline1: resolve(__dirname, 'inline/shared-1.html'),
inline2: resolve(__dirname, 'inline/shared-2.html'),
inline3: resolve(__dirname, 'inline/unique.html'),
unicodePath: resolve(
__dirname,
'unicode-path/中文-にほんご-한글-🌕🌖🌗/index.html'
),
linkProps: resolve(__dirname, 'link-props/index.html')
}
}
},
plugins: [
{
name: 'pre-transform',
transformIndexHtml: {
enforce: 'pre',
transform(html, { filename }) {
if (html.includes('/@vite/client')) {
throw new Error('pre transform applied at wrong time!')
}
const head = `
<head lang="en">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{{ title }}</title>
</head>`
return `<!DOCTYPE html>
<html lang="en">${filename.includes('noHead') ? '' : head}
${
filename.includes('noBody')
? html
: `<body>
${html}
</body>`
}
</html>
`
}
}
},
{
name: 'string-transform',
transformIndexHtml(html) {
return html.replace('Hello', 'Transformed')
}
},
{
name: 'tags-transform',
transformIndexHtml() {
return [
{
tag: 'meta',
attrs: { name: 'description', content: 'a vite app' }
// default injection is head-prepend
},
{
tag: 'meta',
attrs: { name: 'keywords', content: 'es modules' },
injectTo: 'head'
}
]
}
},
{
name: 'combined-transform',
transformIndexHtml(html) {
return {
html: html.replace('{{ title }}', 'Test HTML transforms'),
tags: [
{
tag: 'p',
attrs: { class: 'inject' },
children: 'This is injected',
injectTo: 'body'
}
]
}
}
},
{
name: 'serve-only-transform',
transformIndexHtml(_, ctx) {
if (ctx.server) {
return [
{
tag: 'p',
attrs: { class: 'server' },
children: 'This is injected only during dev',
injectTo: 'body'
}
]
}
}
},
{
name: 'build-only-transform',
transformIndexHtml(_, ctx) {
if (ctx.bundle) {
return [
{
tag: 'p',
attrs: { class: 'build' },
children: 'This is injected only during build',
injectTo: 'body'
}
]
}
}
},
{
name: 'path-conditional-transform',
transformIndexHtml(_, ctx) {
if (ctx.path.includes('nested')) {
return [
{
tag: 'p',
attrs: { class: 'conditional' },
children: 'This is injected only for /nested/index.html',
injectTo: 'body'
}
]
}
}
},
{
name: 'body-prepend-transform',
transformIndexHtml() {
return [
{
tag: 'noscript',
children: '<!-- this is appended to body -->',
injectTo: 'body'
},
{
tag: 'noscript',
children: '<!-- this is prepended to body -->',
injectTo: 'body-prepend'
}
]
}
},
{
name: 'head-prepend-importmap',
transformIndexHtml() {
return [
{
tag: 'script',
attrs: { type: 'importmap' },
children: `
{
"imports": {
"vue": "https://unpkg.com/vue@3.2.0/dist/vue.runtime.esm-browser.js"
}
}
`,
injectTo: 'head-prepend'
}
]
}
}
]
}