gitea-tea/vendor/gopkg.in/src-d/go-git.v4/storage/filesystem/index.go

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package filesystem
import (
"bufio"
"os"
"gopkg.in/src-d/go-git.v4/plumbing/format/index"
"gopkg.in/src-d/go-git.v4/storage/filesystem/dotgit"
"gopkg.in/src-d/go-git.v4/utils/ioutil"
)
type IndexStorage struct {
dir *dotgit.DotGit
}
func (s *IndexStorage) SetIndex(idx *index.Index) (err error) {
f, err := s.dir.IndexWriter()
if err != nil {
return err
}
defer ioutil.CheckClose(f, &err)
bw := bufio.NewWriter(f)
defer func() {
if e := bw.Flush(); err == nil && e != nil {
err = e
}
}()
e := index.NewEncoder(bw)
err = e.Encode(idx)
return err
}
func (s *IndexStorage) Index() (i *index.Index, err error) {
idx := &index.Index{
Version: 2,
}
f, err := s.dir.Index()
if err != nil {
if os.IsNotExist(err) {
return idx, nil
}
return nil, err
}
defer ioutil.CheckClose(f, &err)
d := index.NewDecoder(bufio.NewReader(f))
err = d.Decode(idx)
return idx, err
}