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resolve symlinks when constructing the new db path

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so that the new path is adjacent to the old path, allowing the user to symlink the db in
a different file system.
This commit is contained in:
vyzo 2021-07-27 10:05:35 +03:00
parent 9d25464703
commit c03859c1b5
1 changed files with 18 additions and 1 deletions
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19
blockstore/badger/blockstore.go
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@ -247,7 +247,7 @@ func (b *Blockstore) movingGC() error {
b.moveCond.Broadcast()
b.moveMx.Unlock()
path := fmt.Sprintf("%s.%d", b.opts.Dir, time.Now().Unix())
var path string
defer func() {
b.lockMove()
@ -276,6 +276,23 @@ func (b *Blockstore) movingGC() error {
}
}()
// we resolve symlinks to create the new path in the adjacent to the old path.
// this allows the user to symlink the db directory into a separate filesystem.
basePath := b.opts.Dir
linkPath, err := filepath.EvalSymlinks(basePath)
if err != nil {
return fmt.Errorf("error resolving symlink %s: %w", basePath, err)
}
if basePath == linkPath {
path = basePath
} else {
name := filepath.Base(basePath)
dir := filepath.Dir(linkPath)
path = filepath.Join(dir, name)
}
path = fmt.Sprintf("%s.%d", path, time.Now().Unix())
log.Infof("moving blockstore from %s to %s", b.opts.Dir, path)
opts := b.opts