mirror of https://github.com/sirupsen/logrus.git
32 lines
709 B
Go
32 lines
709 B
Go
// Based on ssh/terminal:
|
|
// Copyright 2011 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build windows,!appengine
|
|
|
|
package logrus
|
|
|
|
import (
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
|
|
|
|
var (
|
|
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
|
|
)
|
|
|
|
// IsTerminal returns true if stderr's file descriptor is a terminal.
|
|
func IsTerminal(f io.Writer) bool {
|
|
switch v := f.(type) {
|
|
case *os.File:
|
|
var st uint32
|
|
r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(v.Fd()), uintptr(unsafe.Pointer(&st)), 0)
|
|
return r != 0 && e == 0
|
|
default:
|
|
return false
|
|
}
|
|
}
|