all: add windows support

Updates golang-design#2

internal/lock/cred_windows.go

@@ -0,0 +1,13 @@
+//go:build windows
+// +build windows
+
+package lock
+
+import (
+	"errors"
+	"net"
+)
+
+func writeCredentials(c *net.UnixConn) error {
+	return errors.New("unimplemented")
+}

internal/lock/creds_darwin.go

@@ -1,7 +1,8 @@
-package lock
-
+//go:build darwin
 // +build darwin
 
+package lock
+
 import (
 	"errors"
 	"net"

internal/lock/creds_linux.go

@@ -1,6 +1,7 @@
-package lock
+//go:build linux
+// +build linux
 
-// +build !darwin
+package lock
 
 import (
 	"fmt"

internal/lock/daemon_darwin.go

@@ -1,11 +1,12 @@
+//go:build darwin
+// +build darwin
+
 package lock
 
 import (
 	"log"
 )
 
-// +build darwin
-
 // RunDaemon runs lock daemon
 func RunDaemon() {
 	log.Fatal("running daemon on darwin systems are not supported.")

internal/lock/daemon_linux.go

@@ -1,6 +1,7 @@
-package lock
+//go:build linux
+// +build linux
 
-// +build !darwin
+package lock
 
 import (
 	"encoding/gob"

internal/lock/daemon_windows.go

@@ -0,0 +1,13 @@
+//go:build windows
+// +build windows
+
+package lock
+
+import (
+	"log"
+)
+
+// RunDaemon runs lock daemon
+func RunDaemon() {
+	log.Fatal("running daemon on windows systems are not supported.")
+}

main.go

@@ -329,7 +329,9 @@ func runBench(args []string) {
 		return
 	}
 
-	fname := "bench-" + time.Now().Format("2006-01-02-15:04:05") + ".txt"
+	// Note that we should avoid using : in filename, because it is not
+	// supported on Windows file systems.
+	fname := "bench-" + time.Now().Format("2006-01-02-15-04-05") + ".txt"
 	err = ioutil.WriteFile(fname, results, 0644)
 	if err != nil {
 		// try again, maybe the user was too fast?