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package loose
import (
"crypto/rand"
"errors"
"fmt"
"io/fs"
"os"
objectstore "codeberg.org/lindenii/furgit/object/store"
)
// BeginObjectQuarantine creates one quarantined loose store rooted privately
// beneath the destination loose root.
//
// Labels: Deps-Borrowed, Life-Parent, Close-No.
func (store *Store) BeginObjectQuarantine(_ objectstore.ObjectQuarantineOptions) (objectstore.ObjectQuarantine, error) {
tempName, tempRoot, err := createLooseQuarantineRoot(store.root)
if err != nil {
return nil, err
}
quarantineStore, err := New(tempRoot, store.algo)
if err != nil {
_ = tempRoot.Close()
_ = store.root.RemoveAll(tempName)
return nil, err
}
return &objectQuarantine{
Store: quarantineStore,
parent: store,
tempName: tempName,
tempRoot: tempRoot,
}, nil
}
func createLooseQuarantineRoot(parent *os.Root) (string, *os.Root, error) {
for range 32 {
name := "tmp_looseq_" + rand.Text()
err := parent.Mkdir(name, 0o700)
if err == nil {
root, err := parent.OpenRoot(name)
if err == nil {
return name, root, nil
}
_ = parent.RemoveAll(name)
return "", nil, err
}
if errors.Is(err, fs.ErrExist) {
continue
}
return "", nil, err
}
return "", nil, fmt.Errorf("objectstore/loose: unable to create quarantine directory")
}
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