cmd/go: need to have the command to view the current path of one package information

[wgliang]

Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go version go1.9.2 darwin/amd64

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/wgliang/Documents"
GORACE=""
GOROOT="/usr/local/Cellar/go/1.9.2/libexec"
GOTOOLDIR="/usr/local/Cellar/go/1.9.2/libexec/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/zd/20dl0mb523v4tjk_pf_hdscr0000gn/T/go-build387919256=/tmp/go-build -gno-record-gcc-switches -fno-common"
CXX="clang++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"

What did you do?

I want to know the path of kubernetes I use where it is located by using the go which(or go path ...)github.com/kubernetes/kubernetes command. When my package is under more than one GOPATH or vendor, I do not know which package I use.

What did you expect to see?

Such as:
github.com/kubernetes/kubernetes:/Users/wgliang/Documents/src/github.com/kubernetes/kubernetes

What did you see instead?

No this function. And I wish to have this command.

[mvdan]

You mean this command?

$ go list -f '{{.Dir}}' golang.org/x/tools/cmd/goimports
/home/mvdan/go/src/golang.org/x/tools/cmd/goimports

[wgliang]

Yes,but I got:

$ pwd
/Users/wgliang/Documents/mos/src/github.com/kubernetes/kubernetes
$ go list -f '{{.Dir}}' github.com/kubernetes/kubernetes
can't load package: package github.com/kubernetes/kubernetes: no Go files in /Users/wgliang/Documents/mos/src/github.com/kubernetes/kubernetes

This can not solve my problem.I need to know which package I am using in the current directory or what the priority list is.

[mvdan]

Because that is not a Go package - it has no Go files.

[wgliang]

Yeah,I know it. But I think we can add such a feature, so that we can more clearly when we want to import a package.

[mvdan]

I think there's some level of confusion here. A directory under $GOPATH/src is not automatically a Go package, as far as I know - it requires at least one Go file in it that isn't hidden. Note that the file doesn't have to be buildable for go list to work.

So, if you're asking for a command to print the directory where a Go package is, you want go list -f '{{.Dir}}'.

If you also want it to work for directories that have no Go files at all, I'm not sure what to answer. I cannot find any documentation explicitly mentioning it, but all tools seem to require at least one Go file in a directory for it to be a Go package. It sounds to me like you should rephrase your feature request to not mention "packages", unless you want to change the definition of what a package is too.

[bradfitz]

@wgliang, are you looking for the same thing as #18119 ?

[wgliang]

@bradfitz Yes, your idea coincides with mine.

I will close this issue.