feat: stream download cli

cmd/root.go

@@ -0,0 +1,29 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+	"sdl/internal/downloader"
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "sdl [URL]",
+	Short: "Stream downloader for HTTP Live Streaming (HLS) content",
+	Args:  cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		url := args[0]
+		output, _ := cmd.Flags().GetString("output")
+		return downloader.Download(cmd.Context(), url, output)
+	},
+}
+
+func init() {
+	rootCmd.Flags().StringP("output", "o", "", "Output file name (defaults to basename of stream)")
+}
+
+func Execute() {
+	if err := rootCmd.Execute(); err != nil {
+		os.Exit(1)
+	}
+}