How to use dlv debug with multiple versions of Go

[Vinoth Ramiah]

Is it possible to specify to dlv to use an alternate version of Go other than the default one found in $PATH? 

I need to use go1.11 for a specific project, so followed this guide (https://golang.org/doc/install#extra_versions) to get go1.11 installed alongside go1.12. As go1.12 is the default though, dlv debug uses it to build the binary instead. Is it possible to override this?

Thanks

[Vinoth Ramiah]

Thanks for getting back to me Alessandro. 

Figured out that I can set GOROOT to the directory where the alternate go version is located (~/sdk/go1.11.5), and making sure PATH includes ~/sdk/go1.11.5/bin before the standard go bin path. Delve then uses it to debug instead of default go binary. Bit clunky but it works 👍

[Alessandro Arzilli]

We don't have an option for that but you can pass -gcflags='all=-N
-l' to 'go build' and then debug the resulting executable with
'dlv exec'

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