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|
package filesystem
import (
"gopkg.in/src-d/go-git.v4/core"
"gopkg.in/src-d/go-git.v4/storage/filesystem/internal/dotgit"
)
type ReferenceStorage struct {
dir *dotgit.DotGit
refs map[core.ReferenceName]*core.Reference
}
func (r *ReferenceStorage) Set(ref *core.Reference) error {
return r.dir.SetRef(ref)
}
func (r *ReferenceStorage) Get(n core.ReferenceName) (*core.Reference, error) {
if err := r.load(); err != nil {
return nil, err
}
ref, ok := r.refs[n]
if !ok {
return nil, core.ErrReferenceNotFound
}
return ref, nil
}
func (r *ReferenceStorage) Iter() (core.ReferenceIter, error) {
if err := r.load(); err != nil {
return nil, err
}
var refs []*core.Reference
for _, ref := range r.refs {
refs = append(refs, ref)
}
return core.NewReferenceSliceIter(refs), nil
}
func (r *ReferenceStorage) load() error {
if len(r.refs) != 0 {
return nil
}
refs, err := r.dir.Refs()
if err != nil {
return err
}
r.refs = make(map[core.ReferenceName]*core.Reference, 0)
for _, ref := range refs {
r.refs[ref.Name()] = ref
}
return nil
}
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