cmd/go: work edit -json doesn't include the toolchain #75941
Description
Go version
go version go1.25.3 linux/amd64
Output of go env in your module/workspace:
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE=''
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/home/ivan/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/home/ivan/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1424714401=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/home/ivan/Code/Personal/etcd/etcd/go.mod'
GOMODCACHE='/home/ivan/.local/share/asdf/installs/golang/1.25.0/packages/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/home/ivan/.local/share/asdf/installs/golang/1.25.0/packages'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/home/ivan/.local/share/asdf/installs/golang/1.25.3/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/home/ivan/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN=''
GOTOOLDIR='/home/ivan/.local/share/asdf/installs/golang/1.25.3/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.25.3'
GOWORK='/home/ivan/Code/etcd/etcd/go.work'
PKG_CONFIG='pkg-config'What did you do?
Run go work edit -json
What did you see happen?
The output contains the JSON output according to the sample output from go help work edit, but it doesn't include the Toolchain property.
$ go work edit -json
{
"Go": "1.25.0",
"Use": [
{
"DiskPath": "."
},
{
"DiskPath": "./api"
},
{
"DiskPath": "./cache"
},
{
"DiskPath": "./client/pkg"
},
{
"DiskPath": "./client/v3"
},
{
"DiskPath": "./etcdctl"
},
{
"DiskPath": "./etcdutl"
},
{
"DiskPath": "./pkg"
},
{
"DiskPath": "./server"
},
{
"DiskPath": "./tests"
},
{
"DiskPath": "./tools/mod"
},
{
"DiskPath": "./tools/rw-heatmaps"
},
{
"DiskPath": "./tools/testgrid-analysis"
}
],
"Replace": null
}
$ head go.work
// This is a generated file. Do not edit directly.
go 1.25.0
toolchain go1.25.3
use (
.
./api
./cache
What did you expect to see?
According to go help work edit, the -json option should output:
The -json flag prints the final go.work file in JSON format instead of
writing it back to go.mod. The JSON output corresponds to these Go types:
type GoWork struct {
Go string
Toolchain string
Godebug []Godebug
Use []Use
Replace []Replace
}
type Godebug struct {
Key string
Value string
}
type Use struct {
DiskPath string
ModulePath string
}
type Replace struct {
Old Module
New Module
}
type Module struct {
Path string
Version string
}
So, I would expect the output to be:
$ go work edit -json
{
"Go": "1.25.0",
"Toolchain": "go1.25.3",
...
Similar to what go mod edit -json generates.