Import fails to find pacakge that exists about gore

[syohex]

You can avoid error by installing github.com/leanovate/gopter/gen.

% go get github.com/leanovate/gopter/gen

I suppose this caused bygo/importer. importer.Default().Import(path) which is used in gore for importing package finds only under $GOPATH/pkg. go get github.com/leanovate/gopter builds only $GOPATH/pkg/your_architecture/github.com/leanovate/gopter.a and does not build $GOPATH/pkg/your_architecture/github.com/leanovate/gopter/gen.a. So you got such error.

[ashb]

I'm confused though - I can take the example gopter code and go run it fine. So what is run/build doing that gore is not?

[syohex]

go run compiles source code and run it. While :import of gore loads package object file(*.a file on Linux system), it does not compile source code and not generate object file. :import commands raises error if there is no object file. So you need to generate object file before using :import command.

[ashb]

Ahh right, that makes sense, thanks! I'm still kind of new to go. I managed to fix it via go install github.com/leanovate/gopter/gen

Is it possible that gore could notice that case and either run the install for me, or print a more understandable error message? I guess anything is possible, is it practical?

[syohex]

Yes it is possible. Code is here.

https://github.com/motemen/gore/blob/603106957dbb1f054a60be39c4bc0c84cc060e44/commands.go#L84-L88

[motemen]

Thanks both, yes it is the current behavior of gore to require :imported packages to be intalled, which causes such confusion. I think this could be fixed.

[zacacollier]

I was wrestling with this for a while and could only get it to work by go getting the package I needed and then running gore from my home directory:

zac@lenovo ~ % go get github.com/aws/aws-sdk-go/aws/session
zac@lenovo ~ % gore
gore version 0.3.0  :help for help
gore> :import github.com/aws/aws-sdk-go/aws/session
gore> session.NewSession
(func(...*aws.Config) (*session.Session, error))(0x6efdb0)
gore>

@motemen I'd be happy to add this the README if you could provide a bit of context as to why this is the case?