Fix Windows build

Use github.com/mattn/go-isatty to check terminal

Godeps/Godeps.json

@@ -63,6 +63,10 @@
 			"ImportPath": "github.com/kr/text",
 			"Rev": "6807e777504f54ad073ecef66747de158294b639"
 		},
+		{
+			"ImportPath": "github.com/mattn/go-isatty",
+			"Rev": "fdbe02a1b44e75977b2690062b83cf507d70c013"
+		},
 		{
 			"ImportPath": "github.com/octokit/go-octokit/octokit",
 			"Comment": "v0.4.0-93-g76c898e",

Godeps/_workspace/src/github.com/mattn/go-isatty/README.md

+# go-isatty
+
+isatty for golang
+
+## Usage
+
+```go
+package main
+
+import (
+	"fmt"
+	"github.com/mattn/go-isatty"
+	"os"
+)
+
+func main() {
+	if isatty.IsTerminal(os.Stdout.Fd()) {
+		fmt.Println("Is Terminal")
+	} else {
+		fmt.Println("Is Not Terminal")
+	}
+}
+```
+
+## Installation
+
+```
+$ go get github.com/mattn/go-isatty
+```
+
+# License
+
+MIT
+
+# Author
+
+Yasuhiro Matsumoto (a.k.a mattn)

Godeps/_workspace/src/github.com/mattn/go-isatty/doc.go

+// Package isatty implements interface to isatty
+package isatty

Godeps/_workspace/src/github.com/mattn/go-isatty/isatty_bsd.go

+// +build darwin freebsd
+
+package isatty
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+const ioctlReadTermios = syscall.TIOCGETA
+
+// 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
+}

Godeps/_workspace/src/github.com/mattn/go-isatty/isatty_linux.go

+// +build linux
+
+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
+}

Godeps/_workspace/src/github.com/mattn/go-isatty/isatty_windows.go

+// +build windows
+
+package isatty
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+var kernel32 = syscall.NewLazyDLL("kernel32.dll")
+var procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
+
+// IsTerminal return true if the file descriptor is terminal.
+func IsTerminal(fd uintptr) bool {
+	var st uint32
+	r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, fd, uintptr(unsafe.Pointer(&st)), 0)
+	return r != 0 && e == 0
+}

github/util.go

-// +build !windows
-
 package github
 
 import (
-	"code.google.com/p/go.crypto/ssh/terminal"
 	"github.com/github/hub/git"
+	"github.com/mattn/go-isatty"
 )
 
 func IsHttpsProtocol() bool {
@@ -22,5 +20,5 @@ func IsHttpsProtocol() bool {
 }
 
 func isTerminal(fd uintptr) bool {
-	return terminal.IsTerminal(int(fd))
+	return isatty.IsTerminal(fd)
 }

github/util_windows.go

-// +build windows
-
-package github
-
-func isTerminal(fd uintptr) bool {
-	return true
-}