Function isHostOnlyEnvVar

packages/container/src/dev.ts:59–67

* Whether an env var should be excluded from the container. Drops the * host-only denylist plus macOS/shell-internal prefixes (`__`, `XPC_`, `SSH_`, * `Apple`) that only make sense on the host.

(key: string)

 * `Apple`) that only make sense on the host.
 */
function isHostOnlyEnvVar(key: string): boolean {
  return (
    HOST_ONLY_ENV.has(key) ||
    key.startsWith('__') ||
    key.startsWith('XPC_') ||
    key.startsWith('SSH_') ||
    key.startsWith('Apple')
  );
}

/**
 * Write env vars to a temp Docker `--env-file` (KEY=VALUE per line). Values