can't set GOCACHE via GOENV

[oldoldman]

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

$ go version
go version go1.17.1 windows/amd64

Does this issue reproduce with the latest release?

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

go env Output

$ go env
set GO111MODULE=
set GOARCH=amd64
set GOBIN=
set GOCACHE=D:\golang\_buildcache
set GOENV=D:\tools\golangenv.txt
set GOEXE=.exe
set GOEXPERIMENT=
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\yushang\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\yushang\go
set GOPRIVATE=
set GOPROXY=https://goproxy.io,direct
set GOROOT=D:\Go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLDIR=D:\Go\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.17.1
set GCCGO=gccgo
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=NUL
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=C:\Users\yushang\AppData\Local\Temp\go-build751646277=/tmp/go-build -gno-record-gcc-switches

What did you do?

I put some environment variables in a file

GOCACHE=D:\golang\_buildcache
GOPROXY=https://goproxy.io,direct

and set GOENV point to this file , after this , build failed with

: The filename, directory name, or volume label syntax is incorrect.

if I set GOCACHE in the terminal

set GOCACHE=D:\golang\_buildcache

every thing is ok .
Does this mean I must paste the output of go env in the terminal ? If so , why GOPROXY works fine without doing so? In my understanding , the behavior should be consistent.

What did you expect to see?

What did you see instead?

[seankhliao]

use go env -w ...... to set variables, it will handle the proper format/escaping.