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follow symbolic links when deleting old dbs

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This commit is contained in:
vyzo 2021-07-12 08:25:09 +03:00
parent 608a9f84d2
commit f2c7b08be5
1 changed files with 28 additions and 3 deletions
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31
blockstore/badger/blockstore.go
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@ -424,9 +424,34 @@ func (b *Blockstore) doCopy(from, to *badger.DB, filter func(cid.Cid) bool) erro
}
func (b *Blockstore) deleteDB(path string) {
err := os.RemoveAll(path)
if err != nil {
log.Warnf("error deleting db at %s: %s", path, err)
// follow symbolic links, otherwise the data wil be left behind
lpath := path
for {
fi, err := os.Lstat(lpath)
if err != nil {
log.Warnf("error stating %s: %s", path, err)
return
}
if fi.Mode()&os.ModeSymlink == 0 {
break
}
lpath, err := os.Readlink(lpath)
if err != nil {
log.Warnf("error resolving symbolic link %s: %s", lpath, err)
}
}
if err := os.RemoveAll(lpath); err != nil {
log.Warnf("error deleting db at %s: %s", lpath, err)
return
}
if path != lpath {
if err := os.Remove(path); err != nil {
log.Warnf("error removing symbolic link %s", err)
}
}
}