6 "github.com/pkg/errors"
9 // Hardlinks validates that all targets for links were part of the changes
11 type Hardlinks struct {
12 seenFiles map[string]struct{}
15 func (v *Hardlinks) HandleChange(kind ChangeKind, p string, fi os.FileInfo, err error) error {
20 if v.seenFiles == nil {
21 v.seenFiles = make(map[string]struct{})
24 if kind == ChangeKindDelete {
28 stat, ok := fi.Sys().(*Stat)
30 return errors.Errorf("invalid change without stat info: %s", p)
33 if fi.IsDir() || fi.Mode()&os.ModeSymlink != 0 {
37 if len(stat.Linkname) > 0 {
38 if _, ok := v.seenFiles[stat.Linkname]; !ok {
39 return errors.Errorf("invalid link %s to unknown path: %q", p, stat.Linkname)
42 v.seenFiles[p] = struct{}{}