package main import ( _ "bufio" "fmt" "os" "os/exec" _ "os/user" "syscall" "os/signal" "strings" "github.com/akamensky/argparse" "github.com/bobappleyard/readline" "github.com/yuin/gopher-lua" ) const version = "0.0.4" var l *lua.LState var prompt string func main() { parser := argparse.NewParser("hilbish", "A shell for lua and flower lovers") verflag := parser.Flag("v", "version", &argparse.Options{ Required: false, Help: "color palette to use", }) err := parser.Parse(os.Args) if err != nil { fmt.Print(parser.Usage(err)) os.Exit(0) } if *verflag { fmt.Printf("Hilbish v%s\n", version) os.Exit(0) } os.Setenv("SHELL", os.Args[0]) HandleSignals() LuaInit() for { //user, _ := user.Current() //dir, _ := os.Getwd() //host, _ := os.Hostname() //reader := bufio.NewReader(os.Stdin) //fmt.Printf(prompt) cmdString, err := readline.String(prompt) if err != nil { fmt.Fprintln(os.Stderr, err) } cmdString = strings.TrimSuffix(cmdString, "\n") err = l.DoString(cmdString) if err == nil { continue } cmdArgs := strings.Fields(cmdString) if len(cmdArgs) == 0 { continue } switch cmdArgs[0] { case "exit": os.Exit(0) case "cd": os.Chdir(strings.Trim(cmdString, "cd ")) default: cmd := exec.Command(cmdArgs[0], cmdArgs[1:]...) cmd.Stderr = os.Stderr cmd.Stdout = os.Stdout if err := cmd.Run(); err != nil { fmt.Fprintln(os.Stderr, err) } } readline.AddHistory(cmdString) } } func HandleSignals() { c := make(chan os.Signal) signal.Notify(c, os.Interrupt, syscall.SIGTERM) go func() { <-c }() } func LuaInit() { l = lua.NewState() l.OpenLibs() l.SetGlobal("prompt", l.NewFunction(hshprompt)) err := l.DoFile(os.Getenv("HOME") + "/.hilbishrc.lua") if err != nil { panic(err) } }