Node script for securely keeping .env in sync with .env.example

make-env-example.js

// Can be used with Run on Save - https://marketplace.visualstudio.com/items?itemName=emeraldwalk.RunOnSave
// Manually run with `npx tsx ./make-env-example.ts`
import { promises as fs } from 'node:fs'

( async () => {
    // Read the .env file
    const envContent = await fs.readFile( '.env', 'utf8' )

    const cleanEnvContent = envContent.split( '\n' ).map( ( line ) => {
        // If the line has no =, then return it as is
        if ( !line.includes( '=' ) ) {
            return line
        }

        return `${ line.split( '=' )[ 0 ] }=''`
    } ).join( '\n' )

    // console.log( { envContent, cleanEnvContent } )

    await fs.writeFile( '.env.example', cleanEnvContent )

    console.log( '✅ Updated .env.example' )

    process.exit()
} )()