Add help command, clear, done all, and improved task list UI

Author: anikchand461

.gitignore

@@ -0,0 +1,6 @@
+# Built binaries
+task
+task-mac
+task-mac-intel
+task-linux
+task.exe

cmd/task/main.go

@@ -7,14 +7,43 @@ import (
 	"github.com/anikchand461/task/internal/task"
 )
 
+func printHelp() {
+	fmt.Println(`
+Task CLI 📝
+
+Usage:
+  task <command> [arguments]
+
+Commands:
+  add "task name"     Add a new task
+  list                List all tasks
+  done <id>            Mark a task as done
+  clear                Delete all tasks
+  help                 Show this help message
+  done <id>            Mark a task as done
+  done all             Mark all tasks as done
+
+Examples:
+  task add "Buy milk"
+  task list
+  task done 1
+  task clear
+`)
+}
+
+
 func main() {
-	if len(os.Args) < 2 {
-		fmt.Println("Usage: task <command>")
-		fmt.Println("Commands: add, list, done")
+	if len(os.Args) < 2 ||
+		os.Args[1] == "help" ||
+		os.Args[1] == "-h" ||
+		os.Args[1] == "--help" {
+
+		printHelp()
 		return
 	}
 
 	switch os.Args[1] {
+
 	case "add":
 		if len(os.Args) < 3 {
 			fmt.Println("Usage: task add <task>")
@@ -33,18 +62,42 @@ func main() {
 			fmt.Println("Error:", err)
 		}
 
+
+	case "clear":
+		err := task.Clear()
+		if err != nil {
+			fmt.Println("Error:", err)
+			return
+		}
+		fmt.Println("All tasks deleted")
+
 	case "done":
 		if len(os.Args) < 3 {
-			fmt.Println("Usage: task done <id>")
+			fmt.Println("Usage: task done <id | all>")
+			return
+		}
+
+		if os.Args[2] == "all" {
+			err := task.DoneAll()
+			if err != nil {
+				fmt.Println("Error:", err)
+				return
+			}
+			fmt.Println("All tasks marked as done")
 			return
 		}
+
 		err := task.Done(os.Args[2])
 		if err != nil {
 			fmt.Println("Error:", err)
+			return
 		}
+		fmt.Println("Task marked as done")
+
 
 	default:
 		fmt.Println("Unknown command:", os.Args[1])
+		printHelp()
 	}
 }
 

internal/task/list.go

@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"fmt"
 	"os"
+	"strings"
 )
 
 func List() error {
@@ -12,6 +13,12 @@ func List() error {
 		return err
 	}
 
+	// If file doesn't exist → empty list
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		fmt.Println("No tasks found.")
+		return nil
+	}
+
 	f, err := os.Open(path)
 	if err != nil {
 		return err
@@ -21,9 +28,20 @@ func List() error {
 	scanner := bufio.NewScanner(f)
 	i := 1
 	for scanner.Scan() {
-		fmt.Println(i, scanner.Text())
+		parts := strings.Split(scanner.Text(), "|")
+		if len(parts) < 2 {
+			continue
+		}
+
+		status := "⭕️"
+		if parts[1] == "done" {
+			status = "✅"
+		}
+
+		fmt.Printf("%d. %s %s\n", i, status, parts[0])
 		i++
 	}
+
 	return scanner.Err()
 }