✨feat: Add step 1 and step 2 to run

root.go

@@ -0,0 +1,302 @@
+/*
+Copyright © 2024 Nestri <>
+*/
+package cmd
+
+import (
+	_ "embed"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/charmbracelet/lipgloss/table"
+	"github.com/muesli/termenv"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+//go:embed nestri.ascii
+var art string
+
+var (
+	gpu int
+	hdr bool
+)
+
+// rootCmd represents the base command when called without any subcommands
+// For a good reference point, start here: https://github.com/charmbracelet/taskcli/blob/main/cmds.go
+var rootCmd = &cobra.Command{
+	Use:   "nestri",
+	Short: "A CLI tool to manage your cloud gaming service",
+	Args:  cobra.NoArgs,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return cmd.Help()
+	},
+}
+
+// this is for the "nestri neofetch" subcommand, has no arguments
+var neoFetchCmd = &cobra.Command{
+	Use:   "neofetch",
+	Short: "Show important system information",
+	Args:  cobra.NoArgs,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		lipgloss.SetColorProfile(termenv.TrueColor)
+
+		baseStyle := lipgloss.NewStyle().
+			PaddingTop(1).
+			PaddingRight(4).
+			PaddingBottom(1).
+			PaddingLeft(4)
+
+		var (
+			b      strings.Builder
+			lines  = strings.Split(art, "\n")
+			colors = []string{"#F8481C", "#F74127", "#F53B30", "#F23538", "#F02E40"}
+			step   = len(lines) / len(colors)
+		)
+
+		for i, l := range lines {
+			n := clamp(0, len(colors)-1, i/step)
+			b.WriteString(colorize(colors[n], l))
+			b.WriteRune('\n')
+		}
+
+		t := table.New().
+			Border(lipgloss.HiddenBorder())
+
+		t.Row(baseStyle.Render(b.String()), baseStyle.Render("System Info goes here"))
+
+		fmt.Print(t)
+
+		return nil
+	},
+}
+
+// this is the "nestri run" subcommand, takes no arguments for now
+var runCmd = &cobra.Command{
+	Use:   "run",
+	Short: "Run a game using nestri",
+	Args:  cobra.MaximumNArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if runtime.GOOS != "linux" {
+			//make sure os is linux
+			fmt.Println("This command is only supported on Linux.")
+			return nil
+		}
+
+		var game string
+		if len(args) > 0 {
+			game = args[0]
+			viper.Set("game", game)
+			viper.WriteConfig()
+		} else {
+			game = viper.GetString("game")
+			if filepath.Ext(game) != ".exe" {
+				return fmt.Errorf("Make sure the game is a .exe")
+			}
+			if game == "" {
+				return fmt.Errorf("no game specified and no previous game selected")
+			}
+		}
+
+		fmt.Printf("Running game: %s\n\n", game)
+		if gpu > 0 {
+			fmt.Print("Using gpu %s\n", gpu)
+		}
+		if hdr {
+			fmt.Println("Enabling HDR mode")
+		}
+
+		//get linux version
+		versionCmd := exec.Command("grep", "VERSION", "/etc/os-release")
+		versionOutput, err := versionCmd.CombinedOutput()
+		if err != nil {
+			return fmt.Errorf("error getting linux version:")
+		}
+		fmt.Printf("Linux version:\n%s\n", string(versionOutput))
+
+		//Step 1: change to games dir
+		fmt.Println("changing to game dir.") //this is a temp command for debug as well as leads to a hardcoded dir
+
+		HomeDir, err := os.UserHomeDir()
+		if err != nil {
+			return fmt.Errorf("error getting home directory %v\n", err)
+		}
+
+		err = os.Chdir(fmt.Sprintf("%s/game", HomeDir))
+		if err != nil {
+			return fmt.Errorf("error changing directory: %v\n", err)
+		}
+		//verify we are in game dir
+		dir, err := os.Getwd()
+		if err != nil {
+			return fmt.Errorf("error getting current directory: %v\n", err)
+		}
+		fmt.Printf("Current directory: %s\n\n", dir)
+
+		//list games dir
+		listDir := exec.Command("ls", "-la", ".")
+		listDirOutput, err := listDir.CombinedOutput()
+		if err != nil {
+			fmt.Errorf("error listing games: %v\n")
+		}
+		fmt.Printf("List of Games: \n%s\n", listDirOutput)
+
+		//step 2: Generate a Session ID
+		//generate id
+		SID := exec.Command("bash", "-c", "head /dev/urandom | LC_ALL=C tr -dc 'a-zA-Z0-9' | head -c 16")
+
+		//save output to variable
+		output, err := SID.Output()
+		if err != nil {
+			fmt.Errorf("Error generating Session ID: %v\n", err)
+		}
+		sessionID := strings.TrimSpace(string(output))
+		fmt.Printf("Your Session ID is: %s\n\n", sessionID)
+
+		//step 3: Launch netris server
+		fmt.Println("Installing Netris/Launching Netris Server\n")
+		checkRunning := exec.Command("sudo", "docker", "ps", "-q", "-f", "name=netris")
+		containerId, err := checkRunning.Output()
+		if err != nil {
+			return fmt.Errorf("error checking running Docker container: %v", err)
+		}
+
+		if len(containerId) == 0 {
+			checkExisting := exec.Command("sudo", "docker", "ps", "-aq", "-f", "name=netris")
+			containerId, err = checkExisting.Output()
+			if err != nil {
+				return fmt.Errorf("error checking for existing docker container: %v", err)
+			}
+
+			if len(containerId) == 0 {
+				installCmd := exec.Command(
+					"sudo", "docker", "run", "-d", "--gpus", "all", "--device=/dev/dri",
+					"--name", "netris", "-it", "--entrypoint", "/bin/bash",
+					"-e", fmt.Sprintf("SESSION_ID=%s", sessionID),
+					"-v", fmt.Sprintf("%s:/game", dir), "-p", "8080:8080/udp",
+					"--cap-add=SYS_NICE", "--cap-add=SYS_ADMIN", "ghcr.io/netrisdotme/netris/server:nightly",
+				)
+				installCmd.Stdout = os.Stdout
+				installCmd.Stderr = os.Stderr
+
+				if err := installCmd.Run(); err != nil {
+					return fmt.Errorf("error running docker command: %v", err)
+				}
+			} else {
+				startContainer := exec.Command("sudo", "docker", "start", "netris")
+				startContainer.Stdout = os.Stdout
+				startContainer.Stderr = os.Stderr
+
+				if err := startContainer.Run(); err != nil {
+					return fmt.Errorf("error starting existing Docker container: %v", err)
+				}
+			}
+		}
+
+		//main part of step 4:
+		//start netris server
+
+		fmt.Println("starting netris server\n\n")
+		checkFileCmd := exec.Command("sudo", "docker", "exec", "netris", "ls", "-la", "/tmp")
+		output, err = checkFileCmd.Output()
+		if err != nil {
+			return fmt.Errorf("error checking /tmp dir in docker container: %v\n", err)
+		}
+
+		if !strings.Contains(string(output), ".X11-unix") {
+			startupCmd := exec.Command("sudo", "docker", "exec", "netris", "/etc/startup.sh", ">", "/dev/null", "&")
+			startupCmd.Stdout = os.Stdout
+			startupCmd.Stderr = os.Stderr
+
+			if err := startupCmd.Run(); err != nil {
+				return fmt.Errorf("error running startup command: %v\n", err)
+			}
+
+			for {
+				time.Sleep(7 * time.Minute)
+				output, err := checkFileCmd.Output()
+				if err != nil {
+					return fmt.Errorf("error checking /tmp directory in container: %v\n", err)
+				}
+				if strings.Contains(string(output), ".X11-unix") {
+					break
+				}
+			}
+		}
+
+		gameCmd := fmt.Sprintf("netris-proton -pr %s", game)
+		execCmd := exec.Command("sudo", "docker", "exec", "netris", gameCmd)
+		execCmd.Stdout = os.Stdout
+		execCmd.Stderr = os.Stderr
+
+		if err := execCmd.Run(); err != nil {
+			return fmt.Errorf("error executing game command in docker container: %v\n", err)
+		}
+
+		return nil
+	},
+}
+
+// Execute adds all child commands to the root command and sets flags appropriately.
+// This is called by main.main(). It only needs to happen once to the rootCmd.
+func Execute() {
+	err := rootCmd.Execute()
+	if err != nil {
+		os.Exit(1)
+	}
+}
+
+func init() {
+	rootCmd.AddCommand(neoFetchCmd)
+
+	rootCmd.AddCommand(runCmd)
+
+	runCmd.Flags().IntVar(&gpu, "gpu", 0, "Specify GPU index")
+	runCmd.Flags().BoolVar(&hdr, "hdr", false, "Enable HDR mode")
+
+	viper.SetConfigName("config")
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath(".")
+
+	if err := viper.ReadInConfig(); err != nil {
+		if _, ok := err.(viper.ConfigFileNotFoundError); ok {
+
+		} else {
+			fmt.Println("error reading config file: %v(you should be able to ignore this)", err)
+		}
+	}
+
+	//If you want to add subcommands to run for example "netri run -fsr" do it like this
+	// runCmd.Flags().BoolP("fsr", "f", false, "Run the Game with FSR enabled or not")
+}
+
+func colorize(c, s string) string {
+	return lipgloss.NewStyle().Foreground(lipgloss.Color(c)).Render(s)
+}
+
+func clamp(v, low, high int) int {
+	if high < low {
+		low, high = high, low
+	}
+	return min(high, max(low, v))
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}