asdf-golang: Both `$GOPATH` or `$GOROOT` are not set & request for a custom place to use my installed go version

I’ve found this alias is useful

alias go-reshim='asdf reshim golang && export GOV=$(asdf current golang | sed  '\''s/ *(set by .*)//g'\'') && export GOROOT="$ASDFINSTALLS/golang/$GOV/go/"'

I have this alias called in my .zshrc or .bashrc files, but I find that I need to call this everytime I switch to a new project.

Thanks, this has indeed been helpful. I made a slight modification since the sed parsing didn’t quite work for my version of asdf.

alias go-reshim='asdf reshim golang && export GOROOT="$(asdf where golang)/go/"'

After I thought I had it fixed with some of the previous suggestions, what ended up working for both GOPATH and GOROOT with repo-specific .tool-versions was this in my ~/.bashrc:

# go
export GOPATH=$(asdf where golang)/packages
export GOROOT=$(asdf where golang)/go
export PATH="${PATH}:$(go env GOPATH)/bin"

it’d be good to document this in readme - what user needs to do for these to be set properly with asdf-golang

Why do we need GOPATH?

Since Go 1.11, you don’t have to use GOPATH anymore. Simply go to your project directory and do this once:

go mod init github.com/youruser/yourrepo

• With this, Go creates a module root at that directory.
• You can create as many modules as you want.
• For step by step instructions, also see this answer.

https://stackoverflow.com/a/53026674/7391331

@MuhmdRaouf Here is my dotfiles https://github.com/matts966/dotfiles-open.

• .zshrc
  • https://github.com/Matts966/dotfiles-open/blob/a43f90bcdee2c0a0e9efb72f4ed7524e444948f8/.zshrc#L73-L75
• .config/direnv/direnvrc
  • https://github.com/Matts966/dotfiles-open/blob/main/direnvrc
• .tool-versions
  • https://github.com/Matts966/dotfiles-open/blob/main/.tool-versions
• .envrc to override defaults

  export ASDF_GOLANG_VERSION=1.15
  use asdf
  

You can refer official doc for other shells. https://github.com/direnv/direnv/blob/master/docs/hook.md

Edit: Maybe I misunderstood the problem. We should set additional export for GOPATH and GOROOT even with asdf-direnv for example by export GOROOT="$(asdf where golang)/go/"' for your global installation.

Edit2: You can add root .envrc with use asdf to set GOPATH and GOROOT for the global installation

Using https://github.com/asdf-community/asdf-direnv with global .tool-versions and .envrc for overriding solves all the problems for me.

+1 for this.

Also, it’d be great if the GOBIN was set. Currently I have to manually set this.

I generally set my defaults in ~/.bashrc and set project local versions in ~/.envrc and use direnv to set/unset. With the latest versions of asdf there is the ability to add a hook for environment variables, but it seems like it could get hairy to determine when I should override what the user already has in their env.

I’ve found this alias is useful

alias go-reshim='asdf reshim golang && export GOV=$(asdf current golang | sed  '\''s/ *(set by .*)//g'\'') && export GOROOT="$ASDFINSTALLS/golang/$GOV/go/"'

I have this alias called in my .zshrc or .bashrc files, but I find that I need to call this everytime I switch to a new project.