pkg/directory/directory_windows.go

   1 // +build windows
   2
   3 package directory
   4
   5 import (
   6         "os"
   7         "path/filepath"
   8 )
   9
  10 // Size walks a directory tree and returns its total size in bytes.
  11 func Size(dir string) (size int64, err error) {
  12         err = filepath.Walk(dir, func(d string, fileInfo os.FileInfo, err error) error {
  13                 if err != nil {
  14                         // if dir does not exist, Size() returns the error.
  15                         // if dir/x disappeared while walking, Size() ignores dir/x.
  16                         if os.IsNotExist(err) && d != dir {
  17                                 return nil
  18                         }
  19                         return err
  20                 }
  21
  22                 // Ignore directory sizes
  23                 if fileInfo == nil {
  24                         return nil
  25                 }
  26
  27                 s := fileInfo.Size()
  28                 if fileInfo.IsDir() || s == 0 {
  29                         return nil
  30                 }
  31
  32                 size += s
  33
  34                 return nil
  35         })
  36         return
  37 }