The vendor directory may be updated with 'go mod vendor'.
A typical sequence might be:

    cd src  # or src/cmd
    go get golang.org/x/net@master
    go mod tidy
    go mod vendor

Use caution when passing '-u' to 'go get'. The '-u' flag updates
modules providing all transitively imported packages, not only
the module providing the target package.

Note that 'go mod vendor' only copies packages that are transitively

      go mod init "k8s.io/${repo}"
      go mod edit -fmt
    fi
  )
done

if [[ ! -f go.mod ]]; then
  kube::log::status "go.mod: initialize k8s.io/kubernetes" >&11
  go mod init "k8s.io/kubernetes"
  rm -f Godeps/Godeps.json # remove after initializing
fi


# Phase 2: ensure staging repo require/replace directives

kube::log::status "go.mod: update staging references" >&11

# When a toolchain download takes place, download 1.X.0
env GOTOOLCHAIN=auto
rm go.mod
go mod init m
go mod edit -go=1.300 -toolchain=none
! go version
stderr 'go: downloading go1.300.0 '

rm go.mod
go mod init m
go mod edit -go=1.21 -toolchain=none
! go version
stderr 'go: downloading go1.21.0 '

rm go.mod
go mod init m
go mod edit -go=1.22 -toolchain=none
! go version
stderr 'go: downloading go1.22.0 '

! go install -mod=readonly $GOPATH/pkg/mod/rsc.io/fortune@v1.0.0
stderr '^missing go\.sum entry for module providing package rsc\.io/fortune; to add:\n\tgo mod download rsc\.io/fortune$'
! go install -mod=readonly ../../pkg/mod/rsc.io/fortune@v1.0.0
stderr '^missing go\.sum entry for module providing package rsc\.io/fortune; to add:\n\tgo mod download rsc\.io/fortune$'
go get rsc.io/fortune@v1.0.0
go install -mod=readonly $GOPATH/pkg/mod/rsc.io/fortune@v1.0.0

cp stdout all.json

# clean the module cache, make sure that makes go mod download re-run git fetch, clean again
go clean -modcache
go mod download -x -json vcs-test.golang.org/git/hello.git@latest
stderr 'git( .*)* fetch'
go clean -modcache

# reuse go mod download vcstest/hello result
go mod download -reuse=hello.json -x -json vcs-test.golang.org/git/hello.git@latest
! stderr 'git( .*)* fetch'

	if err != nil {
		base.Fatal(err)
	}
	mods := mg.BuildList()
	// Use a slice of result channels, so that the output is deterministic.
	errsChans := make([]<-chan []error, len(mods))

	for i, mod := range mods {
		sem <- token{}
		errsc := make(chan []error, 1)
		errsChans[i] = errsc
		mod := mod // use a copy to avoid data races
		go func() {
			errsc <- verifyMod(ctx, mod)
			<-sem
		}()
	}

	ok := true

# GOTOOLCHAIN=path with toolchain line
env GOTOOLCHAIN=local
go mod init m
go mod edit -toolchain=go1.50.0
grep go1.50.0 go.mod
env GOTOOLCHAIN=path
! go version
stderr 'running go1.50.0 from PATH'

# GOTOOLCHAIN=path with go line
env GOTOOLCHAIN=local
go mod edit -toolchain=none -go=1.50.0
grep 'go 1.50.0' go.mod
! grep toolchain go.mod
env GOTOOLCHAIN=path
! go version
stderr 'running go1.50.0 from PATH'

        def framework = newFramework(true, ["app-cls"], ["app-mod"], ["impl-cls"], ["impl-mod"])
        def classpath = underTest.create([new File("cls.jar")], [new File("mod.jar")], framework, false)

        then:
        classpath.applicationClasspath == [new File("cls.jar"), new File("app-cls-external.jar"), new File("app-mod-external.jar")]
        classpath.applicationModulepath == [new File("mod.jar")]

golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
golang.org/x/net v0.22.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
golang.org/x/oauth2 v0.8.0/go.mod h1:yr7u4HXZRm1R1kBWqr/xKNqewf0plRYoB7sla+BCIXE=

cd mod
go list -e -json=ImportPath,Error ./foo
stdout '"Err": "no Go files in .*(/|\\\\)src(/|\\\\)mod(/|\\\\)foo"'

-- mod/go.mod --
module example.com/foo

go 1.21
-- mod/foo/README.md --