tldraw/apps/dotcom/scripts/dev-app.ts

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TypeScript
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import { writeFileSync } from 'fs'
import { exec } from '../../../scripts/lib/exec'
import { readFileIfExists } from '../../../scripts/lib/file'
import { nicelog } from '../../../scripts/lib/nicelog'
async function main() {
await writeEnvFileVars('../dotcom-worker/.dev.vars', {
APP_ORIGIN: 'http://localhost:3000',
})
if (process.env.VITE_PREVIEW === '1') {
await exec('vite', ['preview', '--host', '--port', '3000'])
} else {
await exec('vite', ['dev', '--host', '--port', '3000'])
}
}
async function writeEnvFileVars(filePath: string, vars: Record<string, string>) {
nicelog(`Writing env vars to ${filePath}: ${Object.keys(vars).join(', ')}`)
let envFileContents = (await readFileIfExists(filePath)) ?? ''
const KEYS_TO_SKIP: string[] = []
for (const key of Object.keys(vars)) {
envFileContents = envFileContents.replace(new RegExp(`(\n|^)${key}=.*(?:\n|$)`), '$1')
}
if (envFileContents && !envFileContents.endsWith('\n')) envFileContents += '\n'
for (const [key, value] of Object.entries(vars)) {
if (KEYS_TO_SKIP.includes(key)) {
continue
}
envFileContents += `${key}=${value}\n`
}
writeFileSync(filePath, envFileContents)
nicelog(`Wrote env vars to ${filePath}`)
}
main()