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moby--moby/pkg/directory/directory_windows.go

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// +build windows
package directory
import (
"os"
"path/filepath"
"github.com/docker/docker/pkg/longpath"
)
// Size walks a directory tree and returns its total size in bytes.
func Size(dir string) (size int64, err error) {
fixedPath, err := filepath.Abs(dir)
if err != nil {
return
}
fixedPath = longpath.AddPrefix(fixedPath)
err = filepath.Walk(dir, func(d string, fileInfo os.FileInfo, e error) error {
// Ignore directory sizes
if fileInfo == nil {
return nil
}
s := fileInfo.Size()
if fileInfo.IsDir() || s == 0 {
return nil
}
size += s
return nil
})
return
}