Make clear which page is rendering in layout.tsx

[rxdelta]

Goals

Provide a way to identify which page is now rendering in layout.tsx in SSG (and also other) process(es), possible solutions are

1. declaring a global-access variable
2. passing path parameter to the props
3. add path property to children (React.ReactNode type)

Non-Goals

No response

Background

I couldn't find any way to find out which page is rendering and using layout.tsx in SSG process. I think there should be a way (setting a static variable for example, passing a prop, ...) to indicate that which page is now using layout.tsx. I want it specially in SSG process because it would affect SEO and I don't want to change it to SSR.

Proposal

I'm pleased to contribute, but I'm not sure if there is an existing solution or not. I also need any architectures of next.js to review this feature request and he/she would have better opinion about it.