sort file by mod time

sort.go

package main

import (
	"fmt"
	"path/filepath"
	"time"
	"sort"
	"gopkg.in/djherbis/times.v1"
	"os"
)

type fileInfo struct {
	name string
	modtime time.Time
}

func main() {
	files := []fileInfo{}

	matches, _ := filepath.Glob("./*.mp4")
    for _, match := range matches {
       
        file, err := times.Stat(match)

	    if err != nil {
	    	fmt.Println(err)
	    	continue;
	    }

	    f := fileInfo{
	    	name: match,
	    	modtime: file.BirthTime(),
	    }
	    files = append(files, f)
    }

    sort.Slice(files, func(i, j int) bool {
	  return files[i].modtime.Unix() < files[j].modtime.Unix()
	})

	for i, el := range files {
		name := fmt.Sprintf("%d - %v", i, el.name)
		os.Rename(el.name, name)
	}
}