Closed as not planned
Description
Go version
1.24.3
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/mwriter/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/home/mwriter/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build589407262=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/home/mwriter/go/test/go.mod'
GOMODCACHE='/home/mwriter/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/home/mwriter/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/home/mwriter/bin/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='on'
GOTELEMETRYDIR='/home/mwriter/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/home/mwriter/bin/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.24.3'
GOWORK=''
PKG_CONFIG='pkg-config'What did you do?
I don't know how such a bug could have gone unnoticed for years, but it still exists.
It's working
import (
"os"
"os/exec"
)
func main() {
p := "some_path"
os.Setenv("PATH", p);
cmd := exec.Command("some_binary_name")
err := cmd.Start() // <nil>
}
But
import (
"os"
"os/exec"
)
func main() {
p := "some_path"
cmd := exec.Command("some_binary_name")
os.Setenv("PATH", p);
err := cmd.Start() // exec: "some_binary_name": executable file not found in $PATH
}
import (
"fmt"
"os/exec"
)
func main() {
p := "some_path"
cmd := exec.Command("some_binary_name")
cmd.Env = append([]string{}, fmt.Sprintf("PATH=%v", p))
err := cmd.Start() // exec: "some_binary_name": executable file not found in $PATH
}
What did you see happen?
I see a big problem in resolving file paths.
What did you expect to see?
Need to change the resolving of file paths not at the time of creation of exec command object, but at the time of its launch. And rewrite it so that the field cmd.Env is also used.