func (s *shard) CommitGet(name string) (Commit, error) {
commitPath := path.Join(s.dataRepo, name)
isCommit, err := btrfs.IsCommit(commitPath)
if err != nil {
return Commit{}, err
}
if !isCommit {
return Commit{}, ErrInvalidObject
}
info, err := btrfs.Stat(commitPath)
if err != nil {
return Commit{}, err
}
return Commit{name, info.ModTime()}, nil
}
func (s *shard) BranchGet(name string) (Branch, error) {
branchPath := path.Join(s.dataRepo, name)
isCommit, err := btrfs.IsCommit(branchPath)
if err != nil {
return Branch{}, err
}
if isCommit {
return Branch{}, ErrInvalidObject
}
info, err := btrfs.Stat(branchPath)
if err != nil {
return Branch{}, err
}
return Branch{name, info.ModTime()}, nil
}
func (s *shard) fileGet(dir string, name string) (File, error) {
path := path.Join(dir, name)
info, err := btrfs.Stat(path)
if err != nil {
return File{}, err
}
if info.IsDir() {
return File{}, ErrIsDirectory
}
file, err := btrfs.Open(path)
if err != nil {
return File{}, err
}
return File{
name,
info.ModTime(),
file,
}, nil
}
func (s *shard) BranchList() ([]Branch, error) {
var result []Branch
if err := btrfs.Commits(s.dataRepo, "", btrfs.Desc, func(name string) error {
isCommit, err := btrfs.IsCommit(path.Join(s.dataRepo, name))
if err != nil {
return err
}
if !isCommit {
fi, err := btrfs.Stat(path.Join(s.dataRepo, name))
if err != nil {
return err
}
result = append(result, Branch{name, fi.ModTime()})
}
return nil
}); err != nil {
return nil, err
}
return result, nil
}