Bug: Go 1.23+ ignores custom GOTELEMETRY/GOTELEMETRYDIR settings via env vars or go env config file

[ChipZhang]

Go version

1.23.x, 1.24.x

Output of go env in your module/workspace:

GO111MODULE=''
GOARCH='amd64'
GOBIN=''
GOCACHE='/home/user/.cache/go-build'
GOENV='/home/user/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/home/user/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/home/user/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/my/go/1.23.7'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/my/go/1.23.7/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.23.7'
GODEBUG=''
GOTELEMETRY='local'
GOTELEMETRYDIR='/home/user/.config/go/telemetry'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='0'
GOMOD='/dev/null'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -fno-caret-diagnostics -Qunused-arguments -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1972920973=/tmp/go-build -gno-record-gcc-switches'

What did you do?

1. Set custom GOTELEMETRY and GOTELEMETRYDIR via env vars (for example set it in ~/.profile):

export GOTELEMETRYDIR=/another/path
export GOTELEMETRY=off

2. check that the system env vars already take effect, env|grep GOTELE prints:

GOTELEMETRYDIR=/another/path
GOTELEMETRY=off

3. go commands still uses the default settings, for example, go env | grep GOTELE still prints:

GOTELEMETRY='local'
GOTELEMETRYDIR='/home/user/.config/go/telemetry'

4. Set custom GOTELEMETRY and GOTELEMETRYDIR via go env config file than system env vars , still no use.

What did you see happen?

go command forces use default GOTELEMETRYDIR and GOTELEMETRY, and ignores custom settings.

What did you expect to see?

As per the doc,
go command should respect GOTELEMETRYDIR and GOTELEMETRY env var settings.

[seankhliao]

as the documentation notes, these are read only variables
https://pkg.go.dev/cmd/go#hdr-Manage_telemetry_data_and_settings

[zigo101]

This is really confused. See #68928 #68930 #68936

[sosy-china]

ln -sf /tmp/golang-telemetry /home/xxx/.config/go/telemetry