35 lines
704 B
Go
35 lines
704 B
Go
package directory // import "github.com/docker/docker/pkg/directory"
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import (
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"os"
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"path/filepath"
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)
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// Size walks a directory tree and returns its total size in bytes.
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func Size(dir string) (size int64, err error) {
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err = filepath.Walk(dir, func(d string, fileInfo os.FileInfo, err error) error {
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if err != nil {
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// if dir does not exist, Size() returns the error.
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// if dir/x disappeared while walking, Size() ignores dir/x.
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if os.IsNotExist(err) && d != dir {
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return nil
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}
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return err
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}
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// Ignore directory sizes
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if fileInfo == nil {
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return nil
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}
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s := fileInfo.Size()
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if fileInfo.IsDir() || s == 0 {
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return nil
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}
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size += s
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return nil
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})
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return
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}
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