Merge pull request #1997 from amrfaissal/newfeature-enhanced-logs

Enhanced logging during DEV mode

logs/color.go

@@ -0,0 +1,28 @@
+// 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)
+}

logs/color_windows.go

@@ -0,0 +1,428 @@
+// 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) {
+	r, nw, first, last := 0, 0, 0, 0
+	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:len(p)])
+		r += nw
+	}
+
+	return r, err
+}

logs/color_windows_test.go

@@ -0,0 +1,294 @@
+// 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)
+	}
+}

logs/logger.go

@@ -18,6 +18,8 @@ import (
 	"io"
 	"sync"
 	"time"
+	"fmt"
+	"os"
 )
 
 type logWriter struct {
@@ -36,18 +38,54 @@ func (lg *logWriter) println(when time.Time, msg string) {
 	lg.Unlock()
 }
 
-const y1 = `0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999`
-const y2 = `0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789`
-const mo1 = `000000000111`
-const mo2 = `123456789012`
-const d1 = `0000000001111111111222222222233`
-const d2 = `1234567890123456789012345678901`
-const h1 = `000000000011111111112222`
-const h2 = `012345678901234567890123`
-const mi1 = `000000000011111111112222222222333333333344444444445555555555`
-const mi2 = `012345678901234567890123456789012345678901234567890123456789`
-const s1 = `000000000011111111112222222222333333333344444444445555555555`
-const s2 = `012345678901234567890123456789012345678901234567890123456789`
+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 = `0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999`
+	y2 = `0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789`
+	mo1 = `000000000111`
+	mo2 = `123456789012`
+	d1 = `0000000001111111111222222222233`
+	d2 = `1234567890123456789012345678901`
+	h1 = `000000000011111111112222`
+	h2 = `012345678901234567890123`
+	mi1 = `000000000011111111112222222222333333333344444444445555555555`
+	mi2 = `012345678901234567890123456789012345678901234567890123456789`
+	s1 = `000000000011111111112222222222333333333344444444445555555555`
+	s2 = `012345678901234567890123456789012345678901234567890123456789`
+)
 
 func formatTimeHeader(when time.Time) ([]byte, int) {
 	y, mo, d := when.Date()
@@ -59,14 +97,14 @@ func formatTimeHeader(when time.Time) ([]byte, int) {
 	buf[0] = '2'
 	//change to '1' after 84 years,  LOL
 	buf[1] = '0'
-	buf[2] = y1[y-2000]
-	buf[3] = y2[y-2000]
+	buf[2] = y1[y - 2000]
+	buf[3] = y2[y - 2000]
 	buf[4] = '/'
-	buf[5] = mo1[mo-1]
-	buf[6] = mo2[mo-1]
+	buf[5] = mo1[mo - 1]
+	buf[6] = mo2[mo - 1]
 	buf[7] = '/'
-	buf[8] = d1[d-1]
-	buf[9] = d2[d-1]
+	buf[8] = d1[d - 1]
+	buf[9] = d2[d - 1]
 	buf[10] = ' '
 	buf[11] = h1[h]
 	buf[12] = h2[h]
@@ -80,3 +118,71 @@ func formatTimeHeader(when time.Time) ([]byte, int) {
 
 	return buf[0:], d
 }
+
+var (
+	green 		= string([]byte{27, 91, 57, 55, 59, 52, 50, 109})
+	white 		= string([]byte{27, 91, 57, 48, 59, 52, 55, 109})
+	yellow 		= string([]byte{27, 91, 57, 55, 59, 52, 51, 109})
+	red 		= string([]byte{27, 91, 57, 55, 59, 52, 49, 109})
+	blue 		= string([]byte{27, 91, 57, 55, 59, 52, 52, 109})
+	magenta 	= string([]byte{27, 91, 57, 55, 59, 52, 53, 109})
+	cyan 		= string([]byte{27, 91, 57, 55, 59, 52, 54, 109})
+
+	w32Green 	= string([]byte{27, 91, 52, 50, 109})
+	w32White 	= string([]byte{27, 91, 52, 55, 109})
+	w32Yellow 	= string([]byte{27, 91, 52, 51, 109})
+	w32Red 		= string([]byte{27, 91, 52, 49, 109})
+	w32Blue 	= string([]byte{27, 91, 52, 52, 109})
+	w32Magenta 	= string([]byte{27, 91, 52, 53, 109})
+	w32Cyan 	= string([]byte{27, 91, 52, 54, 109})
+
+	reset 		= string([]byte{27, 91, 48, 109})
+)
+
+func ColorByStatus(cond bool, code int) string {
+	switch {
+	case code >= 200 && code < 300:
+		return map[bool]string{true: green, false: w32Green}[cond]
+	case code >= 300 && code < 400:
+		return map[bool]string{true: white, false: w32White}[cond]
+	case code >= 400 && code < 500:
+		return map[bool]string{true: yellow, false: w32Yellow}[cond]
+	default:
+		return map[bool]string{true: red, false: w32Red}[cond]
+	}
+}
+
+func ColorByMethod(cond bool, method string) string {
+	switch method {
+	case "GET":
+		return map[bool]string{true: blue, false: w32Blue}[cond]
+	case "POST":
+		return map[bool]string{true: cyan, false: w32Cyan}[cond]
+	case "PUT":
+		return map[bool]string{true: yellow, false: w32Yellow}[cond]
+	case "DELETE":
+		return map[bool]string{true: red, false: w32Red}[cond]
+	case "PATCH":
+		return map[bool]string{true: green, false: w32Green}[cond]
+	case "HEAD":
+		return map[bool]string{true: magenta, false: w32Magenta}[cond]
+	case "OPTIONS":
+		return map[bool]string{true: white, false: w32White}[cond]
+	default:
+		return reset
+	}
+}
+
+// Guard Mutex to guarantee atomicity of W32Debug(string) function
+var mu sync.Mutex
+
+// 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)
+}

logs/logger_test.go

@@ -17,6 +17,7 @@ package logs
 import (
 	"testing"
 	"time"
+	"bytes"
 )
 
 func TestFormatHeader_0(t *testing.T) {
@@ -55,3 +56,20 @@ func TestFormatHeader_1(t *testing.T) {
 		tm = tm.Add(dur)
 	}
 }
+
+func TestNewAnsiColor1(t *testing.T) {
+	inner := bytes.NewBufferString("")
+	w := NewAnsiColorWriter(inner)
+	if w == inner {
+		t.Errorf("Get %#v, want %#v", w, inner)
+	}
+}
+
+func TestNewAnsiColor2(t *testing.T) {
+	inner := bytes.NewBufferString("")
+	w1 := NewAnsiColorWriter(inner)
+	w2 := NewAnsiColorWriter(w1)
+	if w1 != w2 {
+		t.Errorf("Get %#v, want %#v", w1, w2)
+	}
+}

router.go

@@ -816,16 +816,31 @@ Admin:
 	if BConfig.RunMode == DEV || BConfig.Log.AccessLogs {
 		timeDur := time.Since(startTime)
 		var devInfo string
+
+		statusCode := context.ResponseWriter.Status
+		if statusCode == 0 { statusCode = 200 }
+
+		iswin := (runtime.GOOS == "windows")
+		statusColor := logs.ColorByStatus(iswin, statusCode)
+		methodColor := logs.ColorByMethod(iswin, r.Method)
+		resetColor := logs.ColorByMethod(iswin, "")
+
 		if findRouter {
 			if routerInfo != nil {
-				devInfo = fmt.Sprintf("| % -10s | % -40s | % -16s | % -10s | % -40s |", r.Method, r.URL.Path, timeDur.String(), "match", routerInfo.pattern)
+					devInfo = fmt.Sprintf("|%s %3d %s|%13s|%8s|%s %s %-7s %-3s   r:%s", statusColor, statusCode,
+						resetColor, timeDur.String(), "match", methodColor, resetColor, r.Method, r.URL.Path,
+						routerInfo.pattern)
 			} else {
-				devInfo = fmt.Sprintf("| % -10s | % -40s | % -16s | % -10s |", r.Method, r.URL.Path, timeDur.String(), "match")
+				devInfo = fmt.Sprintf("|%s %3d %s|%13s|%8s|%s %s %-7s %-3s", statusColor, statusCode, resetColor,
+					timeDur.String(), "match", methodColor, resetColor, r.Method, r.URL.Path)
 			}
 		} else {
-			devInfo = fmt.Sprintf("| % -10s | % -40s | % -16s | % -10s |", r.Method, r.URL.Path, timeDur.String(), "notmatch")
+			devInfo = fmt.Sprintf("|%s %3d %s|%13s|%8s|%s %s %-7s %-3s", statusColor, statusCode, resetColor,
+				timeDur.String(), "nomatch", methodColor, resetColor, r.Method, r.URL.Path)
 		}
-		if DefaultAccessLogFilter == nil || !DefaultAccessLogFilter.Filter(context) {
+		if iswin {
+			logs.W32Debug(devInfo)
+		} else {
 			logs.Debug(devInfo)
 		}
 	}