From ac6019137d5b10d02c7acac4f63fa22091b9933d Mon Sep 17 00:00:00 2001 From: Ondrej Fabry Date: Tue, 28 Nov 2017 16:28:48 +0100 Subject: Fix imports for github.com/sirupsen/logrus Change-Id: I84f2e45e5ff188a2a7a80cf69f607b44486c1754 Signed-off-by: Ondrej Fabry --- .../github.com/sirupsen/logrus/terminal_windows.go | 82 ++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 vendor/github.com/sirupsen/logrus/terminal_windows.go (limited to 'vendor/github.com/sirupsen/logrus/terminal_windows.go') diff --git a/vendor/github.com/sirupsen/logrus/terminal_windows.go b/vendor/github.com/sirupsen/logrus/terminal_windows.go new file mode 100644 index 0000000..7a33630 --- /dev/null +++ b/vendor/github.com/sirupsen/logrus/terminal_windows.go @@ -0,0 +1,82 @@ +// 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 ( + "bytes" + "errors" + "io" + "os" + "os/exec" + "strconv" + "strings" + "syscall" + "unsafe" +) + +var kernel32 = syscall.NewLazyDLL("kernel32.dll") + +var ( + procGetConsoleMode = kernel32.NewProc("GetConsoleMode") + procSetConsoleMode = kernel32.NewProc("SetConsoleMode") +) + +const ( + enableProcessedOutput = 0x0001 + enableWrapAtEolOutput = 0x0002 + enableVirtualTerminalProcessing = 0x0004 +) + +func getVersion() (float64, error) { + stdout, stderr := &bytes.Buffer{}, &bytes.Buffer{} + cmd := exec.Command("cmd", "ver") + cmd.Stdout = stdout + cmd.Stderr = stderr + err := cmd.Run() + if err != nil { + return -1, err + } + + // The output should be like "Microsoft Windows [Version XX.X.XXXXXX]" + version := strings.Replace(stdout.String(), "\n", "", -1) + version = strings.Replace(version, "\r\n", "", -1) + + x1 := strings.Index(version, "[Version") + + if x1 == -1 || strings.Index(version, "]") == -1 { + return -1, errors.New("Can't determine Windows version") + } + + return strconv.ParseFloat(version[x1+9:x1+13], 64) +} + +func init() { + ver, err := getVersion() + if err != nil { + return + } + + // Activate Virtual Processing for Windows CMD + // Info: https://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx + if ver >= 10 { + handle := syscall.Handle(os.Stderr.Fd()) + procSetConsoleMode.Call(uintptr(handle), enableProcessedOutput|enableWrapAtEolOutput|enableVirtualTerminalProcessing) + } +} + +// 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 + } +} -- cgit 1.2.3-korg