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index.js
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index.js
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#!/usr/bin/env node
// @ts-check
const fs = require('fs')
const path = require('path')
// Avoids autoconversion to number of the project name by defining that the args
// non associated with an option ( _ ) needs to be parsed as a string. See #4606
const argv = require('minimist')(process.argv.slice(2), { string: ['_'] })
// eslint-disable-next-line node/no-restricted-require
const prompts = require('prompts')
const {
yellow,
green,
cyan,
blue,
magenta,
lightRed,
red,
reset
} = require('kolorist')
const cwd = process.cwd()
const FRAMEWORKS = [
{
name: 'vanilla',
color: yellow,
variants: [
{
name: 'vanilla',
display: 'JavaScript',
color: yellow
},
{
name: 'vanilla-ts',
display: 'TypeScript',
color: blue
}
]
},
{
name: 'vue',
color: green,
variants: [
{
name: 'vue',
display: 'JavaScript',
color: yellow
},
{
name: 'vue-ts',
display: 'TypeScript',
color: blue
}
]
},
{
name: 'react',
color: cyan,
variants: [
{
name: 'react',
display: 'JavaScript',
color: yellow
},
{
name: 'react-ts',
display: 'TypeScript',
color: blue
}
]
},
{
name: 'preact',
color: magenta,
variants: [
{
name: 'preact',
display: 'JavaScript',
color: yellow
},
{
name: 'preact-ts',
display: 'TypeScript',
color: blue
}
]
},
{
name: 'lit',
color: lightRed,
variants: [
{
name: 'lit',
display: 'JavaScript',
color: yellow
},
{
name: 'lit-ts',
display: 'TypeScript',
color: blue
}
]
},
{
name: 'svelte',
color: red,
variants: [
{
name: 'svelte',
display: 'JavaScript',
color: yellow
},
{
name: 'svelte-ts',
display: 'TypeScript',
color: blue
}
]
}
]
const TEMPLATES = FRAMEWORKS.map(
(f) => (f.variants && f.variants.map((v) => v.name)) || [f.name]
).reduce((a, b) => a.concat(b), [])
const renameFiles = {
_gitignore: '.gitignore'
}
async function init() {
let targetDir = argv._[0]
let template = argv.template || argv.t
const defaultProjectName = !targetDir ? 'vite-project' : targetDir
let result = {}
try {
result = await prompts(
[
{
type: targetDir ? null : 'text',
name: 'projectName',
message: reset('Project name:'),
initial: defaultProjectName,
onState: (state) =>
(targetDir = state.value.trim() || defaultProjectName)
},
{
type: () =>
!fs.existsSync(targetDir) || isEmpty(targetDir) ? null : 'confirm',
name: 'overwrite',
message: () =>
(targetDir === '.'
? 'Current directory'
: `Target directory "${targetDir}"`) +
` is not empty. Remove existing files and continue?`
},
{
type: (_, { overwrite } = {}) => {
if (overwrite === false) {
throw new Error(red('✖') + ' Operation cancelled')
}
return null
},
name: 'overwriteChecker'
},
{
type: () => (isValidPackageName(targetDir) ? null : 'text'),
name: 'packageName',
message: reset('Package name:'),
initial: () => toValidPackageName(targetDir),
validate: (dir) =>
isValidPackageName(dir) || 'Invalid package.json name'
},
{
type: template && TEMPLATES.includes(template) ? null : 'select',
name: 'framework',
message:
typeof template === 'string' && !TEMPLATES.includes(template)
? reset(
`"${template}" isn't a valid template. Please choose from below: `
)
: reset('Select a framework:'),
initial: 0,
choices: FRAMEWORKS.map((framework) => {
const frameworkColor = framework.color
return {
title: frameworkColor(framework.name),
value: framework
}
})
},
{
type: (framework) =>
framework && framework.variants ? 'select' : null,
name: 'variant',
message: reset('Select a variant:'),
// @ts-ignore
choices: (framework) =>
framework.variants.map((variant) => {
const variantColor = variant.color
return {
title: variantColor(variant.name),
value: variant.name
}
})
}
],
{
onCancel: () => {
throw new Error(red('✖') + ' Operation cancelled')
}
}
)
} catch (cancelled) {
console.log(cancelled.message)
return
}
// user choice associated with prompts
const { framework, overwrite, packageName, variant } = result
const root = path.join(cwd, targetDir)
if (overwrite) {
emptyDir(root)
} else if (!fs.existsSync(root)) {
fs.mkdirSync(root)
}
// determine template
template = variant || framework || template
console.log(`\nScaffolding project in ${root}...`)
const templateDir = path.join(__dirname, `template-${template}`)
const write = (file, content) => {
const targetPath = renameFiles[file]
? path.join(root, renameFiles[file])
: path.join(root, file)
if (content) {
fs.writeFileSync(targetPath, content)
} else {
copy(path.join(templateDir, file), targetPath)
}
}
const files = fs.readdirSync(templateDir)
for (const file of files.filter((f) => f !== 'package.json')) {
write(file)
}
const pkg = require(path.join(templateDir, `package.json`))
pkg.name = packageName || targetDir
write('package.json', JSON.stringify(pkg, null, 2))
const pkgInfo = pkgFromUserAgent(process.env.npm_config_user_agent)
const pkgManager = pkgInfo ? pkgInfo.name : 'npm'
console.log(`\nDone. Now run:\n`)
if (root !== cwd) {
console.log(` cd ${path.relative(cwd, root)}`)
}
switch (pkgManager) {
case 'yarn':
console.log(' yarn')
console.log(' yarn dev')
break
default:
console.log(` ${pkgManager} install`)
console.log(` ${pkgManager} run dev`)
break
}
console.log()
}
function copy(src, dest) {
const stat = fs.statSync(src)
if (stat.isDirectory()) {
copyDir(src, dest)
} else {
fs.copyFileSync(src, dest)
}
}
function isValidPackageName(projectName) {
return /^(?:@[a-z0-9-*~][a-z0-9-*._~]*\/)?[a-z0-9-~][a-z0-9-._~]*$/.test(
projectName
)
}
function toValidPackageName(projectName) {
return projectName
.trim()
.toLowerCase()
.replace(/\s+/g, '-')
.replace(/^[._]/, '')
.replace(/[^a-z0-9-~]+/g, '-')
}
function copyDir(srcDir, destDir) {
fs.mkdirSync(destDir, { recursive: true })
for (const file of fs.readdirSync(srcDir)) {
const srcFile = path.resolve(srcDir, file)
const destFile = path.resolve(destDir, file)
copy(srcFile, destFile)
}
}
function isEmpty(path) {
return fs.readdirSync(path).length === 0
}
function emptyDir(dir) {
if (!fs.existsSync(dir)) {
return
}
for (const file of fs.readdirSync(dir)) {
const abs = path.resolve(dir, file)
// baseline is Node 12 so can't use rmSync :(
if (fs.lstatSync(abs).isDirectory()) {
emptyDir(abs)
fs.rmdirSync(abs)
} else {
fs.unlinkSync(abs)
}
}
}
/**
* @param {string | undefined} userAgent process.env.npm_config_user_agent
* @returns object | undefined
*/
function pkgFromUserAgent(userAgent) {
if (!userAgent) return undefined
const pkgSpec = userAgent.split(' ')[0]
const pkgSpecArr = pkgSpec.split('/')
return {
name: pkgSpecArr[0],
version: pkgSpecArr[1]
}
}
init().catch((e) => {
console.error(e)
})