git

type Commit struct {
	Author    Signature
	Committer Signature
	Message   string
	Hash      string
}

type CommitFunc func(commit *Commit) error

type File struct {
	Path string
	Blob func() (io.ReadCloser, error)
	Oid  string
	Size int64
}

type FileFunc func(file *File, fromCommit, toCommit string) error

type Repository interface {
	EachFileChange(ins, mod, del FileFunc) error
	EachCommit(f CommitFunc) error
}

type Signature struct {
	Name  string
	Email string
	When  time.Time
}