Get Windows username

internal/pkg/config/host.go

@@ -2,7 +2,6 @@ package config
 
 import (
 	"os"
-	"os/user"
 	"time"
 )
 
@@ -13,7 +12,8 @@ type HostInfo struct {
 }
 
 func GetHostInfo() (hostInfo *HostInfo, err error) {
-	userInfo, err := user.Current()
+	var name string
+	name, err = userCurrent()
 	if err != nil {
 		return nil, err
 	}
@@ -23,7 +23,7 @@ func GetHostInfo() (hostInfo *HostInfo, err error) {
 	}
 	hostInfo = &HostInfo{
 		FetchedAt: time.Now(),
-		Username:  userInfo.Name,
+		Username:  name,
 		Machine:   machine,
 	}
 	return hostInfo, nil

internal/pkg/config/hostuser.go

@@ -0,0 +1,14 @@
+//go:build darwin || linux
+// +build darwin linux
+
+package config
+
+import "os/user"
+
+func userCurrent() (string, error) {
+	userInfo, err := user.Current()
+	if err != nil {
+		return "", err
+	}
+	return userInfo.Name, nil
+}

internal/pkg/config/hostuser_win.go

@@ -0,0 +1,24 @@
+//go:build windows
+// +build windows
+
+package config
+
+import (
+	"errors"
+	"path/filepath"
+	"syscall"
+
+	"golang.org/x/sys/windows"
+)
+
+func userCurrent() (string, error) {
+	pw_name := make([]uint16, 256)
+	pwname_size := uint32(len(pw_name)) - 1
+	err := windows.GetUserNameEx(windows.NameSamCompatible, &pw_name[0], &pwname_size)
+	if err != nil {
+		return "", errors.New("unable to get windows user name")
+	}
+	s := syscall.UTF16ToString(pw_name)
+	u := filepath.Base(s)
+	return u, nil
+}