x/website: add more detail about GOPATH and where to clone src code in contribution guide

[brite107]

What is the URL of the page with the issue?

https://go.dev/doc/contribute#checkout_go

What is your user agent?

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Screenshot

What did you do?

I followed the contribution guide, installed Go to ~/, and cloned the source code to ~/code/

What did you see happen?

When I open the source code to get an idea of the code before picking an issue to work on, I have some errors. I will submit a screenshot:

What did you expect to see?

I expected to open the source code and not see any errors related to installation. I would love to see some more detail in the contribution guide about where to put the go installation and the go source code. As a first contribution, I would be interested in finding the information and adding it to the documentation myself.

[ansaba]

@dmitshur , can you check the loading error ?

[dmitshur]

The loading error happens because the main Go repository contains a development version of Go 1.23, which isn't released yet. In general, setting up gopls to work on the main Go repository is considered an advanced topic and documented in x/tools/gopls/doc/advanced.md.

I don't currently see setting up the editor discussed in the contribution guide, but perhaps something can be added under https://go.dev/doc/contribute#advanced_topics that at least links to relevant resources.

[gopherbot]

Change https://go.dev/cl/598095 mentions this issue: _content/doc: GOPATH and gopls instructions in contribution guide