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package transactional
import (
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/storer"
)
// ObjectStorage implements the storer.EncodedObjectStorer for the transactional package.
type ObjectStorage struct {
storer.EncodedObjectStorer
temporal storer.EncodedObjectStorer
}
// NewObjectStorage returns a new EncodedObjectStorer based on a base storer and
// a temporal storer.
func NewObjectStorage(base, temporal storer.EncodedObjectStorer) *ObjectStorage {
return &ObjectStorage{EncodedObjectStorer: base, temporal: temporal}
}
// SetEncodedObject honors the storer.EncodedObjectStorer interface.
func (o *ObjectStorage) SetEncodedObject(obj plumbing.EncodedObject) (plumbing.Hash, error) {
return o.temporal.SetEncodedObject(obj)
}
// HasEncodedObject honors the storer.EncodedObjectStorer interface.
func (o *ObjectStorage) HasEncodedObject(h plumbing.Hash) error {
err := o.EncodedObjectStorer.HasEncodedObject(h)
if err == plumbing.ErrObjectNotFound {
return o.temporal.HasEncodedObject(h)
}
return err
}
// EncodedObjectSize honors the storer.EncodedObjectStorer interface.
func (o *ObjectStorage) EncodedObjectSize(h plumbing.Hash) (int64, error) {
sz, err := o.EncodedObjectStorer.EncodedObjectSize(h)
if err == plumbing.ErrObjectNotFound {
return o.temporal.EncodedObjectSize(h)
}
return sz, err
}
// EncodedObject honors the storer.EncodedObjectStorer interface.
func (o *ObjectStorage) EncodedObject(t plumbing.ObjectType, h plumbing.Hash) (plumbing.EncodedObject, error) {
obj, err := o.EncodedObjectStorer.EncodedObject(t, h)
if err == plumbing.ErrObjectNotFound {
return o.temporal.EncodedObject(t, h)
}
return obj, err
}
// IterEncodedObjects honors the storer.EncodedObjectStorer interface.
func (o *ObjectStorage) IterEncodedObjects(t plumbing.ObjectType) (storer.EncodedObjectIter, error) {
baseIter, err := o.EncodedObjectStorer.IterEncodedObjects(t)
if err != nil {
return nil, err
}
temporalIter, err := o.temporal.IterEncodedObjects(t)
if err != nil {
return nil, err
}
return storer.NewMultiEncodedObjectIter([]storer.EncodedObjectIter{
baseIter,
temporalIter,
}), nil
}
// Commit it copies the objects of the temporal storage into the base storage.
func (o *ObjectStorage) Commit() error {
iter, err := o.temporal.IterEncodedObjects(plumbing.AnyObject)
if err != nil {
return err
}
return iter.ForEach(func(obj plumbing.EncodedObject) error {
_, err := o.EncodedObjectStorer.SetEncodedObject(obj)
return err
})
}
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