scandir.go

package main

import (
	"flag"
	"fmt"
	"os"
	"path/filepath"
)

type MovieCollector struct {
	Root   string
	Movies map[string][]string
}

func (collector *MovieCollector) Visit(path string, f os.FileInfo, err error) error {
	if collector.Root == path {
		return nil
	}
  
  //add ".ts" files per directory
	if len(path) > 3 && path[len(path)-3:] == ".ts" {
		dir, file := filepath.Split(path)
		collector.Movies[dir] = append(collector.Movies[dir], file)
		fmt.Printf("%#v added TS file: %#v \n", dir, file)
	}
	return nil
}

func main() {
	flag.Parse()
	root := flag.Arg(0)
	movies := MovieCollector{Root: root, Movies: make(map[string][]string)}
	err := filepath.Walk(root, movies.Visit)
	fmt.Printf("filepath.Walk() returned %v\n", err)
}