Disable resize listening on windows since it's not supported

signals_unix.go

@@ -0,0 +1,27 @@
+// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package tea
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+
+	"golang.org/x/crypto/ssh/terminal"
+)
+
+// listenForResize sends messages (or errors) when the terminal resizes.
+// Argument output should be the file descriptor for the terminal; usually
+// os.Stdout.
+func listenForResize(output *os.File, msgs chan Msg, errs chan error) {
+	sig := make(chan os.Signal)
+	signal.Notify(sig, syscall.SIGWINCH)
+	for {
+		<-sig
+		w, h, err := terminal.GetSize(int(output.Fd()))
+		if err != nil {
+			errs <- err
+		}
+		msgs <- WindowSizeMsg{w, h}
+	}
+}

signals_windows.go

@@ -0,0 +1,9 @@
+// +build windows
+
+package tea
+
+import "os"
+
+// listenForResize is not available on windows because windows does not
+// implement syscall.SIGWINCH.
+func listenForResize(output *os.File, msgs chan Msg, errs chan error) {}

tea.go

@@ -2,8 +2,6 @@ package tea
 
 import (
 	"os"
-	"os/signal"
-	"syscall"
 
 	"github.com/muesli/termenv"
 	"golang.org/x/crypto/ssh/terminal"
@@ -132,18 +130,7 @@ func (p *Program) Start() error {
 	}()
 
 	// Listen for window resizes
-	go func() {
+	go listenForResize(output, msgs, errs)
-		sig := make(chan os.Signal)
-		signal.Notify(sig, syscall.SIGWINCH)
-		for {
-			<-sig
-			w, h, err := terminal.GetSize(int(output.Fd()))
-			if err != nil {
-				errs <- err
-			}
-			msgs <- WindowSizeMsg{w, h}
-		}
-	}()
 
 	// Process commands
 	go func() {