Function isAlreadyLinked

packages/cli/src/postgres/link/local-setup.ts:80–89

(projectDir: string)

/** Checks if `DATABASE_URL` in the project's `.env` already points to a Prisma Postgres instance. */
export function isAlreadyLinked(projectDir: string): boolean {
  const envPath = path.join(projectDir, '.env')

  if (!fs.existsSync(envPath)) {
    return false
  }

  const parsed = dotenv.parse(fs.readFileSync(envPath, 'utf-8'))
  return PRISMA_POSTGRES_URL_PATTERN.test(parsed.DATABASE_URL ?? '')
}

/** Writes connection strings to `.env` and reports the `.gitignore` status. */
export function writeLocalFiles(projectDir: string, connection: ConnectionResult): WriteLocalFilesResult {