FLYCRAN
Flying crane
译为飞鹤 意为自由
import { execSync } from 'node:child_process'
import fs from 'node:fs'
import { resolve } from 'node:path'
import * as process from 'node:process'
import type { Plugin } from 'vite'
// 从.env文件生成 process.env 类型声明
export default function envTypesPlugin({
env = '.env',
typesFile = 'env.d.ts',
exampleFile = '.env.example',
}: {
env?: string
typesFile?: string
exampleFile?: string
}): Plugin {
const envPath = resolve(env)
function generateEnv() {
try {
const envFile = fs.readFileSync(envPath).toString()
const envs: { key: string; comments?: string }[] = []
const envLines = envFile.split(/\n+/)
for (let i = 0; i < envLines.length; i++) {
const line = envLines[i].trim()
if (line !== envLines[i]) {
envLines[i] = line
}
if (!line) continue
if (line.startsWith('#')) continue
const match = line.match(/^([a-zA-Z0-9-_]*)\w*=?\w*(.*?)\w*(#.*)?$/)
if (!match) continue
const [_a, key, _v, comments0] = match
let comments = ''
if (comments0) {
comments = comments0.slice(1).trim()
} else if (i > 0) {
const pre = envLines[i - 1]
if (pre.startsWith('#')) {
comments = pre.slice(1).trim()
}
}
envs.push({
key,
comments,
})
}
const types = envs
.map(({ key, comments }) => `${comments ? `// ${comments}\n` : ''}readonly ${key}: string;`)
.join('\n')
const typesContent = `declare module 'process'{global{namespace NodeJS {interface ProcessEnv{${types}}}}}`
fs.writeFileSync(resolve(typesFile), typesContent)
execSync(`bun x biome format --write ${typesFile}`, { stdio: 'inherit' })
const exampleContent = envFile.replace(/^(\s*[A-Za-z_]\w*\s*=\s*).*?(?=\s*(#|$))/gm, '$1')
fs.writeFileSync(resolve(exampleFile), exampleContent)
} catch (e) {
console.error(e)
}
}
return {
name: 'vite-plugin-env',
configureServer(server) {
if (process.env.NODE_ENV !== 'development') return
generateEnv()
server.watcher.on('change', (path) => {
if (path === envPath) {
generateEnv()
}
})
},
}
}