48 lines
853 B
Go
48 lines
853 B
Go
// +build !windows
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package fs
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import (
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"os"
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"path/filepath"
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"syscall"
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)
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func diskUsage(roots ...string) (Usage, error) {
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type inode struct {
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// TODO(stevvooe): Can probably reduce memory usage by not tracking
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// device, but we can leave this right for now.
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dev, ino uint64
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}
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var (
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size int64
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inodes = map[inode]struct{}{} // expensive!
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)
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for _, root := range roots {
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if err := filepath.Walk(root, func(path string, fi os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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stat := fi.Sys().(*syscall.Stat_t)
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inoKey := inode{dev: uint64(stat.Dev), ino: uint64(stat.Ino)}
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if _, ok := inodes[inoKey]; !ok {
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inodes[inoKey] = struct{}{}
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size += fi.Size()
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}
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return nil
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}); err != nil {
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return Usage{}, err
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}
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}
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return Usage{
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Inodes: int64(len(inodes)),
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Size: size,
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}, nil
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}
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