x/pkgsite: enable LocalMode

[amine7536]

What is the URL of the page with the issue?

Self-Hosted

What is your user agent?

Any

What did you do?

Launch cmd/frontend/main.go, navigate to localhost:8080.

The site shows the same frontend as the public site pkg.go.dev with links to go.dev, blogs ...

What did you expect to see?

Run the frontend in "LocalMode" (same as pkgsite).

Proposal

When running pkgsite locally, it runs by default in LocalMode, which hides items in the header and removes the footer completely. Running the frontend in LocalMode is particularly beneficial for those who wish to run the frontend locally or self-host documentation for their internal packages.

[amine7536]

I can work on enabling LocalMode for the frontend :)

[amine7536]

golang/pkgsite#66

[findleyr]

Thanks! Makes sense to me. We'll review.

[gopherbot]

Change https://go.dev/cl/504336 mentions this issue: cmd/frontend: add -local flag to run frontend in LocalMode