diff --git a/logs/color.go b/logs/color.go
deleted file mode 100644
index 41d23638..00000000
--- a/logs/color.go
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright 2014 beego Author. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// +build !windows
-
-package logs
-
-import "io"
-
-type ansiColorWriter struct {
-	w    io.Writer
-	mode outputMode
-}
-
-func (cw *ansiColorWriter) Write(p []byte) (int, error) {
-	return cw.w.Write(p)
-}
diff --git a/logs/color_windows.go b/logs/color_windows.go
deleted file mode 100644
index 4e28f188..00000000
--- a/logs/color_windows.go
+++ /dev/null
@@ -1,428 +0,0 @@
-// Copyright 2014 beego Author. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// +build windows
-
-package logs
-
-import (
-	"bytes"
-	"io"
-	"strings"
-	"syscall"
-	"unsafe"
-)
-
-type (
-	csiState    int
-	parseResult int
-)
-
-const (
-	outsideCsiCode csiState = iota
-	firstCsiCode
-	secondCsiCode
-)
-
-const (
-	noConsole parseResult = iota
-	changedColor
-	unknown
-)
-
-type ansiColorWriter struct {
-	w             io.Writer
-	mode          outputMode
-	state         csiState
-	paramStartBuf bytes.Buffer
-	paramBuf      bytes.Buffer
-}
-
-const (
-	firstCsiChar   byte = '\x1b'
-	secondeCsiChar byte = '['
-	separatorChar  byte = ';'
-	sgrCode        byte = 'm'
-)
-
-const (
-	foregroundBlue      = uint16(0x0001)
-	foregroundGreen     = uint16(0x0002)
-	foregroundRed       = uint16(0x0004)
-	foregroundIntensity = uint16(0x0008)
-	backgroundBlue      = uint16(0x0010)
-	backgroundGreen     = uint16(0x0020)
-	backgroundRed       = uint16(0x0040)
-	backgroundIntensity = uint16(0x0080)
-	underscore          = uint16(0x8000)
-
-	foregroundMask = foregroundBlue | foregroundGreen | foregroundRed | foregroundIntensity
-	backgroundMask = backgroundBlue | backgroundGreen | backgroundRed | backgroundIntensity
-)
-
-const (
-	ansiReset        = "0"
-	ansiIntensityOn  = "1"
-	ansiIntensityOff = "21"
-	ansiUnderlineOn  = "4"
-	ansiUnderlineOff = "24"
-	ansiBlinkOn      = "5"
-	ansiBlinkOff     = "25"
-
-	ansiForegroundBlack   = "30"
-	ansiForegroundRed     = "31"
-	ansiForegroundGreen   = "32"
-	ansiForegroundYellow  = "33"
-	ansiForegroundBlue    = "34"
-	ansiForegroundMagenta = "35"
-	ansiForegroundCyan    = "36"
-	ansiForegroundWhite   = "37"
-	ansiForegroundDefault = "39"
-
-	ansiBackgroundBlack   = "40"
-	ansiBackgroundRed     = "41"
-	ansiBackgroundGreen   = "42"
-	ansiBackgroundYellow  = "43"
-	ansiBackgroundBlue    = "44"
-	ansiBackgroundMagenta = "45"
-	ansiBackgroundCyan    = "46"
-	ansiBackgroundWhite   = "47"
-	ansiBackgroundDefault = "49"
-
-	ansiLightForegroundGray    = "90"
-	ansiLightForegroundRed     = "91"
-	ansiLightForegroundGreen   = "92"
-	ansiLightForegroundYellow  = "93"
-	ansiLightForegroundBlue    = "94"
-	ansiLightForegroundMagenta = "95"
-	ansiLightForegroundCyan    = "96"
-	ansiLightForegroundWhite   = "97"
-
-	ansiLightBackgroundGray    = "100"
-	ansiLightBackgroundRed     = "101"
-	ansiLightBackgroundGreen   = "102"
-	ansiLightBackgroundYellow  = "103"
-	ansiLightBackgroundBlue    = "104"
-	ansiLightBackgroundMagenta = "105"
-	ansiLightBackgroundCyan    = "106"
-	ansiLightBackgroundWhite   = "107"
-)
-
-type drawType int
-
-const (
-	foreground drawType = iota
-	background
-)
-
-type winColor struct {
-	code     uint16
-	drawType drawType
-}
-
-var colorMap = map[string]winColor{
-	ansiForegroundBlack:   {0, foreground},
-	ansiForegroundRed:     {foregroundRed, foreground},
-	ansiForegroundGreen:   {foregroundGreen, foreground},
-	ansiForegroundYellow:  {foregroundRed | foregroundGreen, foreground},
-	ansiForegroundBlue:    {foregroundBlue, foreground},
-	ansiForegroundMagenta: {foregroundRed | foregroundBlue, foreground},
-	ansiForegroundCyan:    {foregroundGreen | foregroundBlue, foreground},
-	ansiForegroundWhite:   {foregroundRed | foregroundGreen | foregroundBlue, foreground},
-	ansiForegroundDefault: {foregroundRed | foregroundGreen | foregroundBlue, foreground},
-
-	ansiBackgroundBlack:   {0, background},
-	ansiBackgroundRed:     {backgroundRed, background},
-	ansiBackgroundGreen:   {backgroundGreen, background},
-	ansiBackgroundYellow:  {backgroundRed | backgroundGreen, background},
-	ansiBackgroundBlue:    {backgroundBlue, background},
-	ansiBackgroundMagenta: {backgroundRed | backgroundBlue, background},
-	ansiBackgroundCyan:    {backgroundGreen | backgroundBlue, background},
-	ansiBackgroundWhite:   {backgroundRed | backgroundGreen | backgroundBlue, background},
-	ansiBackgroundDefault: {0, background},
-
-	ansiLightForegroundGray:    {foregroundIntensity, foreground},
-	ansiLightForegroundRed:     {foregroundIntensity | foregroundRed, foreground},
-	ansiLightForegroundGreen:   {foregroundIntensity | foregroundGreen, foreground},
-	ansiLightForegroundYellow:  {foregroundIntensity | foregroundRed | foregroundGreen, foreground},
-	ansiLightForegroundBlue:    {foregroundIntensity | foregroundBlue, foreground},
-	ansiLightForegroundMagenta: {foregroundIntensity | foregroundRed | foregroundBlue, foreground},
-	ansiLightForegroundCyan:    {foregroundIntensity | foregroundGreen | foregroundBlue, foreground},
-	ansiLightForegroundWhite:   {foregroundIntensity | foregroundRed | foregroundGreen | foregroundBlue, foreground},
-
-	ansiLightBackgroundGray:    {backgroundIntensity, background},
-	ansiLightBackgroundRed:     {backgroundIntensity | backgroundRed, background},
-	ansiLightBackgroundGreen:   {backgroundIntensity | backgroundGreen, background},
-	ansiLightBackgroundYellow:  {backgroundIntensity | backgroundRed | backgroundGreen, background},
-	ansiLightBackgroundBlue:    {backgroundIntensity | backgroundBlue, background},
-	ansiLightBackgroundMagenta: {backgroundIntensity | backgroundRed | backgroundBlue, background},
-	ansiLightBackgroundCyan:    {backgroundIntensity | backgroundGreen | backgroundBlue, background},
-	ansiLightBackgroundWhite:   {backgroundIntensity | backgroundRed | backgroundGreen | backgroundBlue, background},
-}
-
-var (
-	kernel32                       = syscall.NewLazyDLL("kernel32.dll")
-	procSetConsoleTextAttribute    = kernel32.NewProc("SetConsoleTextAttribute")
-	procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
-	defaultAttr                    *textAttributes
-)
-
-func init() {
-	screenInfo := getConsoleScreenBufferInfo(uintptr(syscall.Stdout))
-	if screenInfo != nil {
-		colorMap[ansiForegroundDefault] = winColor{
-			screenInfo.WAttributes & (foregroundRed | foregroundGreen | foregroundBlue),
-			foreground,
-		}
-		colorMap[ansiBackgroundDefault] = winColor{
-			screenInfo.WAttributes & (backgroundRed | backgroundGreen | backgroundBlue),
-			background,
-		}
-		defaultAttr = convertTextAttr(screenInfo.WAttributes)
-	}
-}
-
-type coord struct {
-	X, Y int16
-}
-
-type smallRect struct {
-	Left, Top, Right, Bottom int16
-}
-
-type consoleScreenBufferInfo struct {
-	DwSize              coord
-	DwCursorPosition    coord
-	WAttributes         uint16
-	SrWindow            smallRect
-	DwMaximumWindowSize coord
-}
-
-func getConsoleScreenBufferInfo(hConsoleOutput uintptr) *consoleScreenBufferInfo {
-	var csbi consoleScreenBufferInfo
-	ret, _, _ := procGetConsoleScreenBufferInfo.Call(
-		hConsoleOutput,
-		uintptr(unsafe.Pointer(&csbi)))
-	if ret == 0 {
-		return nil
-	}
-	return &csbi
-}
-
-func setConsoleTextAttribute(hConsoleOutput uintptr, wAttributes uint16) bool {
-	ret, _, _ := procSetConsoleTextAttribute.Call(
-		hConsoleOutput,
-		uintptr(wAttributes))
-	return ret != 0
-}
-
-type textAttributes struct {
-	foregroundColor     uint16
-	backgroundColor     uint16
-	foregroundIntensity uint16
-	backgroundIntensity uint16
-	underscore          uint16
-	otherAttributes     uint16
-}
-
-func convertTextAttr(winAttr uint16) *textAttributes {
-	fgColor := winAttr & (foregroundRed | foregroundGreen | foregroundBlue)
-	bgColor := winAttr & (backgroundRed | backgroundGreen | backgroundBlue)
-	fgIntensity := winAttr & foregroundIntensity
-	bgIntensity := winAttr & backgroundIntensity
-	underline := winAttr & underscore
-	otherAttributes := winAttr &^ (foregroundMask | backgroundMask | underscore)
-	return &textAttributes{fgColor, bgColor, fgIntensity, bgIntensity, underline, otherAttributes}
-}
-
-func convertWinAttr(textAttr *textAttributes) uint16 {
-	var winAttr uint16
-	winAttr |= textAttr.foregroundColor
-	winAttr |= textAttr.backgroundColor
-	winAttr |= textAttr.foregroundIntensity
-	winAttr |= textAttr.backgroundIntensity
-	winAttr |= textAttr.underscore
-	winAttr |= textAttr.otherAttributes
-	return winAttr
-}
-
-func changeColor(param []byte) parseResult {
-	screenInfo := getConsoleScreenBufferInfo(uintptr(syscall.Stdout))
-	if screenInfo == nil {
-		return noConsole
-	}
-
-	winAttr := convertTextAttr(screenInfo.WAttributes)
-	strParam := string(param)
-	if len(strParam) <= 0 {
-		strParam = "0"
-	}
-	csiParam := strings.Split(strParam, string(separatorChar))
-	for _, p := range csiParam {
-		c, ok := colorMap[p]
-		switch {
-		case !ok:
-			switch p {
-			case ansiReset:
-				winAttr.foregroundColor = defaultAttr.foregroundColor
-				winAttr.backgroundColor = defaultAttr.backgroundColor
-				winAttr.foregroundIntensity = defaultAttr.foregroundIntensity
-				winAttr.backgroundIntensity = defaultAttr.backgroundIntensity
-				winAttr.underscore = 0
-				winAttr.otherAttributes = 0
-			case ansiIntensityOn:
-				winAttr.foregroundIntensity = foregroundIntensity
-			case ansiIntensityOff:
-				winAttr.foregroundIntensity = 0
-			case ansiUnderlineOn:
-				winAttr.underscore = underscore
-			case ansiUnderlineOff:
-				winAttr.underscore = 0
-			case ansiBlinkOn:
-				winAttr.backgroundIntensity = backgroundIntensity
-			case ansiBlinkOff:
-				winAttr.backgroundIntensity = 0
-			default:
-				// unknown code
-			}
-		case c.drawType == foreground:
-			winAttr.foregroundColor = c.code
-		case c.drawType == background:
-			winAttr.backgroundColor = c.code
-		}
-	}
-	winTextAttribute := convertWinAttr(winAttr)
-	setConsoleTextAttribute(uintptr(syscall.Stdout), winTextAttribute)
-
-	return changedColor
-}
-
-func parseEscapeSequence(command byte, param []byte) parseResult {
-	if defaultAttr == nil {
-		return noConsole
-	}
-
-	switch command {
-	case sgrCode:
-		return changeColor(param)
-	default:
-		return unknown
-	}
-}
-
-func (cw *ansiColorWriter) flushBuffer() (int, error) {
-	return cw.flushTo(cw.w)
-}
-
-func (cw *ansiColorWriter) resetBuffer() (int, error) {
-	return cw.flushTo(nil)
-}
-
-func (cw *ansiColorWriter) flushTo(w io.Writer) (int, error) {
-	var n1, n2 int
-	var err error
-
-	startBytes := cw.paramStartBuf.Bytes()
-	cw.paramStartBuf.Reset()
-	if w != nil {
-		n1, err = cw.w.Write(startBytes)
-		if err != nil {
-			return n1, err
-		}
-	} else {
-		n1 = len(startBytes)
-	}
-	paramBytes := cw.paramBuf.Bytes()
-	cw.paramBuf.Reset()
-	if w != nil {
-		n2, err = cw.w.Write(paramBytes)
-		if err != nil {
-			return n1 + n2, err
-		}
-	} else {
-		n2 = len(paramBytes)
-	}
-	return n1 + n2, nil
-}
-
-func isParameterChar(b byte) bool {
-	return ('0' <= b && b <= '9') || b == separatorChar
-}
-
-func (cw *ansiColorWriter) Write(p []byte) (int, error) {
-	var r, nw, first, last int
-	if cw.mode != DiscardNonColorEscSeq {
-		cw.state = outsideCsiCode
-		cw.resetBuffer()
-	}
-
-	var err error
-	for i, ch := range p {
-		switch cw.state {
-		case outsideCsiCode:
-			if ch == firstCsiChar {
-				cw.paramStartBuf.WriteByte(ch)
-				cw.state = firstCsiCode
-			}
-		case firstCsiCode:
-			switch ch {
-			case firstCsiChar:
-				cw.paramStartBuf.WriteByte(ch)
-				break
-			case secondeCsiChar:
-				cw.paramStartBuf.WriteByte(ch)
-				cw.state = secondCsiCode
-				last = i - 1
-			default:
-				cw.resetBuffer()
-				cw.state = outsideCsiCode
-			}
-		case secondCsiCode:
-			if isParameterChar(ch) {
-				cw.paramBuf.WriteByte(ch)
-			} else {
-				nw, err = cw.w.Write(p[first:last])
-				r += nw
-				if err != nil {
-					return r, err
-				}
-				first = i + 1
-				result := parseEscapeSequence(ch, cw.paramBuf.Bytes())
-				if result == noConsole || (cw.mode == OutputNonColorEscSeq && result == unknown) {
-					cw.paramBuf.WriteByte(ch)
-					nw, err := cw.flushBuffer()
-					if err != nil {
-						return r, err
-					}
-					r += nw
-				} else {
-					n, _ := cw.resetBuffer()
-					// Add one more to the size of the buffer for the last ch
-					r += n + 1
-				}
-
-				cw.state = outsideCsiCode
-			}
-		default:
-			cw.state = outsideCsiCode
-		}
-	}
-
-	if cw.mode != DiscardNonColorEscSeq || cw.state == outsideCsiCode {
-		nw, err = cw.w.Write(p[first:])
-		r += nw
-	}
-
-	return r, err
-}
diff --git a/logs/color_windows_test.go b/logs/color_windows_test.go
deleted file mode 100644
index 5074841a..00000000
--- a/logs/color_windows_test.go
+++ /dev/null
@@ -1,294 +0,0 @@
-// Copyright 2014 beego Author. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// +build windows
-
-package logs
-
-import (
-	"bytes"
-	"fmt"
-	"syscall"
-	"testing"
-)
-
-var GetConsoleScreenBufferInfo = getConsoleScreenBufferInfo
-
-func ChangeColor(color uint16) {
-	setConsoleTextAttribute(uintptr(syscall.Stdout), color)
-}
-
-func ResetColor() {
-	ChangeColor(uint16(0x0007))
-}
-
-func TestWritePlanText(t *testing.T) {
-	inner := bytes.NewBufferString("")
-	w := NewAnsiColorWriter(inner)
-	expected := "plain text"
-	fmt.Fprintf(w, expected)
-	actual := inner.String()
-	if actual != expected {
-		t.Errorf("Get %q, want %q", actual, expected)
-	}
-}
-
-func TestWriteParseText(t *testing.T) {
-	inner := bytes.NewBufferString("")
-	w := NewAnsiColorWriter(inner)
-
-	inputTail := "\x1b[0mtail text"
-	expectedTail := "tail text"
-	fmt.Fprintf(w, inputTail)
-	actualTail := inner.String()
-	inner.Reset()
-	if actualTail != expectedTail {
-		t.Errorf("Get %q, want %q", actualTail, expectedTail)
-	}
-
-	inputHead := "head text\x1b[0m"
-	expectedHead := "head text"
-	fmt.Fprintf(w, inputHead)
-	actualHead := inner.String()
-	inner.Reset()
-	if actualHead != expectedHead {
-		t.Errorf("Get %q, want %q", actualHead, expectedHead)
-	}
-
-	inputBothEnds := "both ends \x1b[0m text"
-	expectedBothEnds := "both ends  text"
-	fmt.Fprintf(w, inputBothEnds)
-	actualBothEnds := inner.String()
-	inner.Reset()
-	if actualBothEnds != expectedBothEnds {
-		t.Errorf("Get %q, want %q", actualBothEnds, expectedBothEnds)
-	}
-
-	inputManyEsc := "\x1b\x1b\x1b\x1b[0m many esc"
-	expectedManyEsc := "\x1b\x1b\x1b many esc"
-	fmt.Fprintf(w, inputManyEsc)
-	actualManyEsc := inner.String()
-	inner.Reset()
-	if actualManyEsc != expectedManyEsc {
-		t.Errorf("Get %q, want %q", actualManyEsc, expectedManyEsc)
-	}
-
-	expectedSplit := "split  text"
-	for _, ch := range "split \x1b[0m text" {
-		fmt.Fprintf(w, string(ch))
-	}
-	actualSplit := inner.String()
-	inner.Reset()
-	if actualSplit != expectedSplit {
-		t.Errorf("Get %q, want %q", actualSplit, expectedSplit)
-	}
-}
-
-type screenNotFoundError struct {
-	error
-}
-
-func writeAnsiColor(expectedText, colorCode string) (actualText string, actualAttributes uint16, err error) {
-	inner := bytes.NewBufferString("")
-	w := NewAnsiColorWriter(inner)
-	fmt.Fprintf(w, "\x1b[%sm%s", colorCode, expectedText)
-
-	actualText = inner.String()
-	screenInfo := GetConsoleScreenBufferInfo(uintptr(syscall.Stdout))
-	if screenInfo != nil {
-		actualAttributes = screenInfo.WAttributes
-	} else {
-		err = &screenNotFoundError{}
-	}
-	return
-}
-
-type testParam struct {
-	text       string
-	attributes uint16
-	ansiColor  string
-}
-
-func TestWriteAnsiColorText(t *testing.T) {
-	screenInfo := GetConsoleScreenBufferInfo(uintptr(syscall.Stdout))
-	if screenInfo == nil {
-		t.Fatal("Could not get ConsoleScreenBufferInfo")
-	}
-	defer ChangeColor(screenInfo.WAttributes)
-	defaultFgColor := screenInfo.WAttributes & uint16(0x0007)
-	defaultBgColor := screenInfo.WAttributes & uint16(0x0070)
-	defaultFgIntensity := screenInfo.WAttributes & uint16(0x0008)
-	defaultBgIntensity := screenInfo.WAttributes & uint16(0x0080)
-
-	fgParam := []testParam{
-		{"foreground black  ", uint16(0x0000 | 0x0000), "30"},
-		{"foreground red    ", uint16(0x0004 | 0x0000), "31"},
-		{"foreground green  ", uint16(0x0002 | 0x0000), "32"},
-		{"foreground yellow ", uint16(0x0006 | 0x0000), "33"},
-		{"foreground blue   ", uint16(0x0001 | 0x0000), "34"},
-		{"foreground magenta", uint16(0x0005 | 0x0000), "35"},
-		{"foreground cyan   ", uint16(0x0003 | 0x0000), "36"},
-		{"foreground white  ", uint16(0x0007 | 0x0000), "37"},
-		{"foreground default", defaultFgColor | 0x0000, "39"},
-		{"foreground light gray   ", uint16(0x0000 | 0x0008 | 0x0000), "90"},
-		{"foreground light red    ", uint16(0x0004 | 0x0008 | 0x0000), "91"},
-		{"foreground light green  ", uint16(0x0002 | 0x0008 | 0x0000), "92"},
-		{"foreground light yellow ", uint16(0x0006 | 0x0008 | 0x0000), "93"},
-		{"foreground light blue   ", uint16(0x0001 | 0x0008 | 0x0000), "94"},
-		{"foreground light magenta", uint16(0x0005 | 0x0008 | 0x0000), "95"},
-		{"foreground light cyan   ", uint16(0x0003 | 0x0008 | 0x0000), "96"},
-		{"foreground light white  ", uint16(0x0007 | 0x0008 | 0x0000), "97"},
-	}
-
-	bgParam := []testParam{
-		{"background black  ", uint16(0x0007 | 0x0000), "40"},
-		{"background red    ", uint16(0x0007 | 0x0040), "41"},
-		{"background green  ", uint16(0x0007 | 0x0020), "42"},
-		{"background yellow ", uint16(0x0007 | 0x0060), "43"},
-		{"background blue   ", uint16(0x0007 | 0x0010), "44"},
-		{"background magenta", uint16(0x0007 | 0x0050), "45"},
-		{"background cyan   ", uint16(0x0007 | 0x0030), "46"},
-		{"background white  ", uint16(0x0007 | 0x0070), "47"},
-		{"background default", uint16(0x0007) | defaultBgColor, "49"},
-		{"background light gray   ", uint16(0x0007 | 0x0000 | 0x0080), "100"},
-		{"background light red    ", uint16(0x0007 | 0x0040 | 0x0080), "101"},
-		{"background light green  ", uint16(0x0007 | 0x0020 | 0x0080), "102"},
-		{"background light yellow ", uint16(0x0007 | 0x0060 | 0x0080), "103"},
-		{"background light blue   ", uint16(0x0007 | 0x0010 | 0x0080), "104"},
-		{"background light magenta", uint16(0x0007 | 0x0050 | 0x0080), "105"},
-		{"background light cyan   ", uint16(0x0007 | 0x0030 | 0x0080), "106"},
-		{"background light white  ", uint16(0x0007 | 0x0070 | 0x0080), "107"},
-	}
-
-	resetParam := []testParam{
-		{"all reset", defaultFgColor | defaultBgColor | defaultFgIntensity | defaultBgIntensity, "0"},
-		{"all reset", defaultFgColor | defaultBgColor | defaultFgIntensity | defaultBgIntensity, ""},
-	}
-
-	boldParam := []testParam{
-		{"bold on", uint16(0x0007 | 0x0008), "1"},
-		{"bold off", uint16(0x0007), "21"},
-	}
-
-	underscoreParam := []testParam{
-		{"underscore on", uint16(0x0007 | 0x8000), "4"},
-		{"underscore off", uint16(0x0007), "24"},
-	}
-
-	blinkParam := []testParam{
-		{"blink on", uint16(0x0007 | 0x0080), "5"},
-		{"blink off", uint16(0x0007), "25"},
-	}
-
-	mixedParam := []testParam{
-		{"both black,   bold, underline, blink", uint16(0x0000 | 0x0000 | 0x0008 | 0x8000 | 0x0080), "30;40;1;4;5"},
-		{"both red,     bold, underline, blink", uint16(0x0004 | 0x0040 | 0x0008 | 0x8000 | 0x0080), "31;41;1;4;5"},
-		{"both green,   bold, underline, blink", uint16(0x0002 | 0x0020 | 0x0008 | 0x8000 | 0x0080), "32;42;1;4;5"},
-		{"both yellow,  bold, underline, blink", uint16(0x0006 | 0x0060 | 0x0008 | 0x8000 | 0x0080), "33;43;1;4;5"},
-		{"both blue,    bold, underline, blink", uint16(0x0001 | 0x0010 | 0x0008 | 0x8000 | 0x0080), "34;44;1;4;5"},
-		{"both magenta, bold, underline, blink", uint16(0x0005 | 0x0050 | 0x0008 | 0x8000 | 0x0080), "35;45;1;4;5"},
-		{"both cyan,    bold, underline, blink", uint16(0x0003 | 0x0030 | 0x0008 | 0x8000 | 0x0080), "36;46;1;4;5"},
-		{"both white,   bold, underline, blink", uint16(0x0007 | 0x0070 | 0x0008 | 0x8000 | 0x0080), "37;47;1;4;5"},
-		{"both default, bold, underline, blink", uint16(defaultFgColor | defaultBgColor | 0x0008 | 0x8000 | 0x0080), "39;49;1;4;5"},
-	}
-
-	assertTextAttribute := func(expectedText string, expectedAttributes uint16, ansiColor string) {
-		actualText, actualAttributes, err := writeAnsiColor(expectedText, ansiColor)
-		if actualText != expectedText {
-			t.Errorf("Get %q, want %q", actualText, expectedText)
-		}
-		if err != nil {
-			t.Fatal("Could not get ConsoleScreenBufferInfo")
-		}
-		if actualAttributes != expectedAttributes {
-			t.Errorf("Text: %q, Get 0x%04x, want 0x%04x", expectedText, actualAttributes, expectedAttributes)
-		}
-	}
-
-	for _, v := range fgParam {
-		ResetColor()
-		assertTextAttribute(v.text, v.attributes, v.ansiColor)
-	}
-
-	for _, v := range bgParam {
-		ChangeColor(uint16(0x0070 | 0x0007))
-		assertTextAttribute(v.text, v.attributes, v.ansiColor)
-	}
-
-	for _, v := range resetParam {
-		ChangeColor(uint16(0x0000 | 0x0070 | 0x0008))
-		assertTextAttribute(v.text, v.attributes, v.ansiColor)
-	}
-
-	ResetColor()
-	for _, v := range boldParam {
-		assertTextAttribute(v.text, v.attributes, v.ansiColor)
-	}
-
-	ResetColor()
-	for _, v := range underscoreParam {
-		assertTextAttribute(v.text, v.attributes, v.ansiColor)
-	}
-
-	ResetColor()
-	for _, v := range blinkParam {
-		assertTextAttribute(v.text, v.attributes, v.ansiColor)
-	}
-
-	for _, v := range mixedParam {
-		ResetColor()
-		assertTextAttribute(v.text, v.attributes, v.ansiColor)
-	}
-}
-
-func TestIgnoreUnknownSequences(t *testing.T) {
-	inner := bytes.NewBufferString("")
-	w := NewModeAnsiColorWriter(inner, OutputNonColorEscSeq)
-
-	inputText := "\x1b[=decpath mode"
-	expectedTail := inputText
-	fmt.Fprintf(w, inputText)
-	actualTail := inner.String()
-	inner.Reset()
-	if actualTail != expectedTail {
-		t.Errorf("Get %q, want %q", actualTail, expectedTail)
-	}
-
-	inputText = "\x1b[=tailing esc and bracket\x1b["
-	expectedTail = inputText
-	fmt.Fprintf(w, inputText)
-	actualTail = inner.String()
-	inner.Reset()
-	if actualTail != expectedTail {
-		t.Errorf("Get %q, want %q", actualTail, expectedTail)
-	}
-
-	inputText = "\x1b[?tailing esc\x1b"
-	expectedTail = inputText
-	fmt.Fprintf(w, inputText)
-	actualTail = inner.String()
-	inner.Reset()
-	if actualTail != expectedTail {
-		t.Errorf("Get %q, want %q", actualTail, expectedTail)
-	}
-
-	inputText = "\x1b[1h;3punended color code invalid\x1b3"
-	expectedTail = inputText
-	fmt.Fprintf(w, inputText)
-	actualTail = inner.String()
-	inner.Reset()
-	if actualTail != expectedTail {
-		t.Errorf("Get %q, want %q", actualTail, expectedTail)
-	}
-}
diff --git a/logs/log.go b/logs/log.go
index a3614165..3bf9c5f4 100644
--- a/logs/log.go
+++ b/logs/log.go
@@ -47,7 +47,7 @@ import (
 
 // RFC5424 log message levels.
 const (
-	LevelEmergency     = iota
+	LevelEmergency = iota
 	LevelAlert
 	LevelCritical
 	LevelError
@@ -92,7 +92,7 @@ type Logger interface {
 }
 
 var adapters = make(map[string]newLoggerFunc)
-var levelPrefix = [LevelDebug + 1]string{"[M] ", "[A] ", "[C] ", "[E] ", "[W] ", "[N] ", "[I] ", "[D] "}
+var levelPrefix = [LevelDebug + 1]string{"[M]", "[A]", "[C]", "[E]", "[W]", "[N]", "[I]", "[D]"}
 
 // Register makes a log provide available by the provided name.
 // If Register is called twice with the same name or if driver is nil,
@@ -248,7 +248,7 @@ func (bl *BeeLogger) Write(p []byte) (n int, err error) {
 	}
 	// writeMsg will always add a '\n' character
 	if p[len(p)-1] == '\n' {
-		p = p[0: len(p)-1]
+		p = p[0 : len(p)-1]
 	}
 	// set levelLoggerImpl to ensure all log message will be write out
 	err = bl.writeMsg(levelLoggerImpl, string(p))
@@ -287,7 +287,7 @@ func (bl *BeeLogger) writeMsg(logLevel int, msg string, v ...interface{}) error
 		// set to emergency to ensure all log will be print out correctly
 		logLevel = LevelEmergency
 	} else {
-		msg = levelPrefix[logLevel] + msg
+		msg = levelPrefix[logLevel] + " " + msg
 	}
 
 	if bl.asynchronous {
diff --git a/logs/logger.go b/logs/logger.go
index cdcd63e9..06bf0f69 100644
--- a/logs/logger.go
+++ b/logs/logger.go
@@ -15,9 +15,7 @@
 package logs
 
 import (
-	"fmt"
 	"io"
-	"os"
 	"runtime"
 	"sync"
 	"time"
@@ -39,40 +37,6 @@ func (lg *logWriter) println(when time.Time, msg string) {
 	lg.Unlock()
 }
 
-type outputMode int
-
-// DiscardNonColorEscSeq supports the divided color escape sequence.
-// But non-color escape sequence is not output.
-// Please use the OutputNonColorEscSeq If you want to output a non-color
-// escape sequences such as ncurses. However, it does not support the divided
-// color escape sequence.
-const (
-	_ outputMode = iota
-	DiscardNonColorEscSeq
-	OutputNonColorEscSeq
-)
-
-// NewAnsiColorWriter creates and initializes a new ansiColorWriter
-// using io.Writer w as its initial contents.
-// In the console of Windows, which change the foreground and background
-// colors of the text by the escape sequence.
-// In the console of other systems, which writes to w all text.
-func NewAnsiColorWriter(w io.Writer) io.Writer {
-	return NewModeAnsiColorWriter(w, DiscardNonColorEscSeq)
-}
-
-// NewModeAnsiColorWriter create and initializes a new ansiColorWriter
-// by specifying the outputMode.
-func NewModeAnsiColorWriter(w io.Writer, mode outputMode) io.Writer {
-	if _, ok := w.(*ansiColorWriter); !ok {
-		return &ansiColorWriter{
-			w:    w,
-			mode: mode,
-		}
-	}
-	return w
-}
-
 const (
 	y1  = `0123456789`
 	y2  = `0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789`
@@ -209,17 +173,3 @@ func ColorByMethod(method string) string {
 func ResetColor() string {
 	return reset
 }
-
-// Guard Mutex to guarantee atomic of W32Debug(string) function
-var mu sync.Mutex
-
-// W32Debug Helper method to output colored logs in Windows terminals
-func W32Debug(msg string) {
-	mu.Lock()
-	defer mu.Unlock()
-
-	current := time.Now()
-	w := NewAnsiColorWriter(os.Stdout)
-
-	fmt.Fprintf(w, "[beego] %v %s\n", current.Format("2006/01/02 - 15:04:05"), msg)
-}