Implement basic command structure

Gosl.go

@@ -0,0 +1,17 @@
+package main // code.bitsetter.de/fun/gosl
+
+import (
+	"runtime"
+
+	"code.bitsetter.de/fun/gosl/cmd"
+)
+
+func main() {
+	// Max out processor usage:
+	// since go 1.5 it's the default to use all available cores,
+	// let's stay compatible to go <= 1.4
+	runtime.GOMAXPROCS(runtime.NumCPU())
+
+	// let each cmd handle itself
+	cmd.Execute()
+}

cmd/Client.go

@@ -0,0 +1,22 @@
+package cmd // code.bitsetter.de/fun/gosl/cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var cmdClient = &cobra.Command{
+	Use:   "client",
+	Short: "Runs Gosl as a client",
+	Long:  "Runs Gosl as a client",
+	//	Run:
+}
+
+func runClient(cmd *cobra.Command, args []string) {
+	fmt.Println("running client ...")
+}
+
+func init() {
+	cmdClient.Run = runClient
+}

cmd/Cmd.go

@@ -0,0 +1,24 @@
+package cmd // code.bitsetter.de/fun/gosl/cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var cmdGosl = &cobra.Command{
+	Use:   "gosl [command]",
+	Short: "Run a gosl instance",
+	Long: `Run a gosl server or client."
+
+For further instructions run 'gosl help [command]'
+`,
+}
+
+func Execute() {
+	cmdGosl.AddCommand(cmdServer)
+	cmdGosl.AddCommand(cmdClient)
+	if err := cmdGosl.Execute(); err != nil {
+		os.Exit(-1)
+	}
+}

cmd/Server.go

@@ -0,0 +1,22 @@
+package cmd // code.bitsetter.de/fun/gosl/cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var cmdServer = &cobra.Command{
+	Use:   "server",
+	Short: "Runs Gosl as a server",
+	Long:  "Runs Gosl as a server",
+	//	Run:
+}
+
+func runServer(cmd *cobra.Command, args []string) {
+	fmt.Println("running server ...")
+}
+
+func init() {
+	cmdServer.Run = runServer
+}

data/Screen.go

@@ -0,0 +1,6 @@
+package data // code.bitsetter.de/fun/gosl/data
+
+type Screen struct {
+	w, h int
+	data []rune
+}