Shortening go filenames in directory to prevent filename too long errors on Windows

main.go

package main

import (
	"path/filepath"
	"os"
	"fmt"
	"strings"
	"strconv"
)

var (
	i = 0
)

func main() {
	filepath.Walk("C:\\workspace\\go\\src\\github.com\\antihax\\goesi\\esi", visit)
}

// Find .go files and change their varnames to an incrementing integer
func visit(path string, f os.FileInfo, err error) error {
	if filepath.Ext(path) == ".go" {
		fmt.Println(path)
		i++
		_, file := filepath.Split(path)
		newname := strings.Replace(path, file, strconv.Itoa(i)+".go", 1)
		os.Rename(path, newname)
	}
	return nil
}