add in-built logging support for a better dev experience

vendor/github.com/mattn/go-colorable/README.md

@@ -1,8 +1,8 @@
 # go-colorable
 
-[![Godoc Reference](https://godoc.org/github.com/mattn/go-colorable?status.svg)](http://godoc.org/github.com/mattn/go-colorable)
 [![Build Status](https://travis-ci.org/mattn/go-colorable.svg?branch=master)](https://travis-ci.org/mattn/go-colorable)
-[![Coverage Status](https://coveralls.io/repos/github/mattn/go-colorable/badge.svg?branch=master)](https://coveralls.io/github/mattn/go-colorable?branch=master)
+[![Codecov](https://codecov.io/gh/mattn/go-colorable/branch/master/graph/badge.svg)](https://codecov.io/gh/mattn/go-colorable)
+[![GoDoc](https://godoc.org/github.com/mattn/go-colorable?status.svg)](http://godoc.org/github.com/mattn/go-colorable)
 [![Go Report Card](https://goreportcard.com/badge/mattn/go-colorable)](https://goreportcard.com/report/mattn/go-colorable)
 
 Colorable writer for windows.

vendor/github.com/mattn/go-colorable/colorable_appengine.go

@@ -27,3 +27,11 @@ func NewColorableStdout() io.Writer {
 func NewColorableStderr() io.Writer {
 	return os.Stderr
 }
+
+// EnableColorsStdout enable colors if possible.
+func EnableColorsStdout(enabled *bool) func() {
+	if enabled != nil {
+		*enabled = true
+	}
+	return func() {}
+}

vendor/github.com/mattn/go-colorable/colorable_others.go

@@ -28,3 +28,11 @@ func NewColorableStdout() io.Writer {
 func NewColorableStderr() io.Writer {
 	return os.Stderr
 }
+
+// EnableColorsStdout enable colors if possible.
+func EnableColorsStdout(enabled *bool) func() {
+	if enabled != nil {
+		*enabled = true
+	}
+	return func() {}
+}

vendor/github.com/mattn/go-colorable/colorable_windows.go

@@ -10,6 +10,7 @@ import (
 	"os"
 	"strconv"
 	"strings"
+	"sync"
 	"syscall"
 	"unsafe"
 
@@ -27,6 +28,9 @@ const (
 	backgroundRed       = 0x40
 	backgroundIntensity = 0x80
 	backgroundMask      = (backgroundRed | backgroundBlue | backgroundGreen | backgroundIntensity)
+	commonLvbUnderscore = 0x8000
+
+	cENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x4
 )
 
 const (
@@ -78,6 +82,8 @@ var (
 	procGetConsoleCursorInfo       = kernel32.NewProc("GetConsoleCursorInfo")
 	procSetConsoleCursorInfo       = kernel32.NewProc("SetConsoleCursorInfo")
 	procSetConsoleTitle            = kernel32.NewProc("SetConsoleTitleW")
+	procGetConsoleMode             = kernel32.NewProc("GetConsoleMode")
+	procSetConsoleMode             = kernel32.NewProc("SetConsoleMode")
 	procCreateConsoleScreenBuffer  = kernel32.NewProc("CreateConsoleScreenBuffer")
 )
 
@@ -89,6 +95,7 @@ type Writer struct {
 	oldattr   word
 	oldpos    coord
 	rest      bytes.Buffer
+	mutex     sync.Mutex
 }
 
 // NewColorable returns new instance of Writer which handles escape sequence from File.
@@ -98,6 +105,10 @@ func NewColorable(file *os.File) io.Writer {
 	}
 
 	if isatty.IsTerminal(file.Fd()) {
+		var mode uint32
+		if r, _, _ := procGetConsoleMode.Call(file.Fd(), uintptr(unsafe.Pointer(&mode))); r != 0 && mode&cENABLE_VIRTUAL_TERMINAL_PROCESSING != 0 {
+			return file
+		}
 		var csbi consoleScreenBufferInfo
 		handle := syscall.Handle(file.Fd())
 		procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
@@ -424,6 +435,8 @@ func atoiWithDefault(s string, def int) (int, error) {
 
 // Write writes data on console
 func (w *Writer) Write(data []byte) (n int, err error) {
+	w.mutex.Lock()
+	defer w.mutex.Unlock()
 	var csbi consoleScreenBufferInfo
 	procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
 
@@ -675,14 +688,19 @@ loop:
 					switch {
 					case n == 0 || n == 100:
 						attr = w.oldattr
-					case 1 <= n && n <= 5:
+					case n == 4:
+						attr |= commonLvbUnderscore
+					case (1 <= n && n <= 3) || n == 5:
 						attr |= foregroundIntensity
-					case n == 7:
-						attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4)
-					case n == 22 || n == 25:
-						attr |= foregroundIntensity
-					case n == 27:
-						attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4)
+					case n == 7 || n == 27:
+						attr =
+							(attr &^ (foregroundMask | backgroundMask)) |
+								((attr & foregroundMask) << 4) |
+								((attr & backgroundMask) >> 4)
+					case n == 22:
+						attr &^= foregroundIntensity
+					case n == 24:
+						attr &^= commonLvbUnderscore
 					case 30 <= n && n <= 37:
 						attr &= backgroundMask
 						if (n-30)&1 != 0 {
@@ -1003,3 +1021,23 @@ func n256setup() {
 		n256backAttr[i] = c.backgroundAttr()
 	}
 }
+
+// EnableColorsStdout enable colors if possible.
+func EnableColorsStdout(enabled *bool) func() {
+	var mode uint32
+	h := os.Stdout.Fd()
+	if r, _, _ := procGetConsoleMode.Call(h, uintptr(unsafe.Pointer(&mode))); r != 0 {
+		if r, _, _ = procSetConsoleMode.Call(h, uintptr(mode|cENABLE_VIRTUAL_TERMINAL_PROCESSING)); r != 0 {
+			if enabled != nil {
+				*enabled = true
+			}
+			return func() {
+				procSetConsoleMode.Call(h, uintptr(mode))
+			}
+		}
+	}
+	if enabled != nil {
+		*enabled = true
+	}
+	return func() {}
+}

vendor/github.com/mattn/go-colorable/go.mod

@@ -1,3 +1,8 @@
 module github.com/mattn/go-colorable
 
-require github.com/mattn/go-isatty v0.0.8
+require (
+	github.com/mattn/go-isatty v0.0.12
+	golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae // indirect
+)
+
+go 1.13

vendor/github.com/mattn/go-colorable/go.sum

@@ -1,4 +1,5 @@
-github.com/mattn/go-isatty v0.0.5 h1:tHXDdz1cpzGaovsTB+TVB8q90WEokoVmfMqoVcrLUgw=
-github.com/mattn/go-isatty v0.0.5/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
-golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 h1:DH4skfRX4EBpamg7iV4ZlCpblAHI6s6TDM39bFZumv8=
-golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
+github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae h1:/WDfKMnPU+m5M4xB+6x4kaepxRw6jWvR5iDRdvjHgy8=
+golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

vendor/github.com/mattn/go-colorable/go.test.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+echo "" > coverage.txt
+
+for d in $(go list ./... | grep -v vendor); do
+    go test -race -coverprofile=profile.out -covermode=atomic "$d"
+    if [ -f profile.out ]; then
+        cat profile.out >> coverage.txt
+        rm profile.out
+    fi
+done

vendor/github.com/mattn/go-isatty/README.md

@@ -1,7 +1,7 @@
 # go-isatty
 
 [![Godoc Reference](https://godoc.org/github.com/mattn/go-isatty?status.svg)](http://godoc.org/github.com/mattn/go-isatty)
-[![Build Status](https://travis-ci.org/mattn/go-isatty.svg?branch=master)](https://travis-ci.org/mattn/go-isatty)
+[![Codecov](https://codecov.io/gh/mattn/go-isatty/branch/master/graph/badge.svg)](https://codecov.io/gh/mattn/go-isatty)
 [![Coverage Status](https://coveralls.io/repos/github/mattn/go-isatty/badge.svg?branch=master)](https://coveralls.io/github/mattn/go-isatty?branch=master)
 [![Go Report Card](https://goreportcard.com/badge/mattn/go-isatty)](https://goreportcard.com/report/mattn/go-isatty)
 

vendor/github.com/mattn/go-isatty/go.mod

@@ -2,4 +2,4 @@ module github.com/mattn/go-isatty
 
 go 1.12
 
-require golang.org/x/sys v0.0.0-20191026070338-33540a1f6037
+require golang.org/x/sys v0.0.0-20200116001909-b77594299b42

vendor/github.com/mattn/go-isatty/go.sum

@@ -1,2 +1,2 @@
-golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 h1:YyJpGZS1sBuBCzLAR1VEpK193GlqGZbnPFnPV/5Rsb4=
-golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42 h1:vEOn+mP2zCOVzKckCZy6YsCtDblrpj/w7B9nxGNELpg=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

vendor/github.com/mattn/go-isatty/go.test.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+echo "" > coverage.txt
+
+for d in $(go list ./... | grep -v vendor); do
+    go test -race -coverprofile=profile.out -covermode=atomic "$d"
+    if [ -f profile.out ]; then
+        cat profile.out >> coverage.txt
+        rm profile.out
+    fi
+done

vendor/github.com/mattn/go-isatty/isatty_android.go

@@ -1,23 +0,0 @@
-// +build android
-
-package isatty
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-const ioctlReadTermios = syscall.TCGETS
-
-// IsTerminal return true if the file descriptor is terminal.
-func IsTerminal(fd uintptr) bool {
-	var termios syscall.Termios
-	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
-	return err == 0
-}
-
-// IsCygwinTerminal return true if the file descriptor is a cygwin or msys2
-// terminal. This is also always false on this environment.
-func IsCygwinTerminal(fd uintptr) bool {
-	return false
-}

vendor/github.com/mattn/go-isatty/isatty_bsd.go

@@ -3,18 +3,12 @@
 
 package isatty
 
-import (
-	"syscall"
-	"unsafe"
-)
-
-const ioctlReadTermios = syscall.TIOCGETA
+import "golang.org/x/sys/unix"
 
 // IsTerminal return true if the file descriptor is terminal.
 func IsTerminal(fd uintptr) bool {
-	var termios syscall.Termios
-	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
-	return err == 0
+	_, err := unix.IoctlGetTermios(int(fd), unix.TIOCGETA)
+	return err == nil
 }
 
 // IsCygwinTerminal return true if the file descriptor is a cygwin or msys2

vendor/github.com/mattn/go-isatty/isatty_tcgets.go

@@ -1,6 +1,5 @@
 // +build linux aix
 // +build !appengine
-// +build !android
 
 package isatty
 

vendor/github.com/mattn/go-isatty/renovate.json

@@ -0,0 +1,8 @@
+{
+  "extends": [
+    "config:base"
+  ],
+  "postUpdateOptions": [
+    "gomodTidy"
+  ]
+}