init

main.go

@@ -0,0 +1,126 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"gosh/cmd"
+	"gosh/types"
+	"os"
+	"strings"
+
+	"github.com/fatih/color"
+)
+
+func gosh_print_output(cmdo types.CmdOutput) {
+	switch cmdo.Id {
+	case 0:
+		fmt.Printf(cmdo.Output)
+	case 1:
+		fmt.Printf("Error: %s\n", cmdo.Output)
+	}
+}
+
+func parse_flags(parts []string) (map[string]string, []string) {
+	flags := make(map[string]string)
+	args := []string{}
+	i := 0
+	for i < len(parts) {
+		if strings.HasPrefix(parts[i], "-") {
+			key := parts[i]
+			val := ""
+			if i+1 < len(parts) && !strings.HasPrefix(parts[i+1], "-") {
+				val = parts[i+1]
+				i++
+			}
+			flags[key] = val
+		} else {
+			args = append(args, parts[i])
+		}
+		i++
+	}
+	return flags, args
+}
+
+func gosh_process_input(sh *types.Shell, input string) {
+	// Split by pipe and trim spaces
+	commands := strings.Split(input, "|")
+	var prevOutput types.CmdOutput
+
+	for _, cmdStr := range commands {
+		cmdStr = strings.TrimSpace(cmdStr)
+		parts := strings.Fields(cmdStr)
+		if len(parts) == 0 {
+			continue
+		}
+
+		switch parts[0] {
+		case "pwd":
+			prevOutput = cmd.GoshPwd(sh)
+		case "cd":
+			if len(parts) < 2 {
+				fmt.Println("Usage: cd <dir>")
+				return
+			}
+			prevOutput = cmd.GoshCd(sh, parts[1])
+		case "ls":
+			prevOutput = cmd.GoshLs(sh)
+		case "cat":
+			if len(parts) < 2 {
+				fmt.Println("Usage: cat <path to file>")
+				return
+			}
+			prevOutput = cmd.GoshCat(sh, parts[1])
+		case "grep":
+			if len(parts) < 2 {
+				fmt.Println("Usage: grep <pattern>")
+				return
+			}
+
+			flags, args := parse_flags(parts)
+
+			// Feed previous output to grep
+			prevOutput = cmd.GoshGrep(sh, flags, prevOutput.Output, args[len(args)-1])
+		case "clear":
+			cmd.GoshClear()
+		default:
+			fmt.Println("Unknown command: ", parts[0])
+			return
+		}
+	}
+
+	gosh_print_output(prevOutput)
+}
+
+func main() {
+	reader := bufio.NewReader(os.Stdin)
+
+	c := color.New(color.FgCyan)
+
+	dir, _ := os.Getwd()
+	sh := types.Shell{Cd: dir}
+
+	var should_exit = false
+	for {
+		c.Print(sh.Cd)
+		fmt.Print("> ")
+
+		input, err := reader.ReadString('\n')
+
+		if err != nil {
+			fmt.Println("Error reading input: ", err)
+		}
+
+		input = strings.TrimSpace(input)
+
+		switch input {
+		case "exit":
+			should_exit = true
+		default:
+			gosh_process_input(&sh, input)
+		}
+
+		if should_exit {
+			break
+		}
+	}
+}