storage

type Branch struct {
	Name    string
	ModTime time.Time
}

type Commit struct {
	Name    string
	ModTime time.Time
}

type File struct {
	Name    string
	ModTime time.Time
	File    *os.File
}

type Filesystem interface {
	FileGet(name string, commit string) (File, error)
	FileGetAll(name string, commit string) ([]File, error)
	FileCreate(name string, content io.Reader, branch string) error

	CommitGet(name string) (Commit, error)
	CommitList() ([]Commit, error)
	CommitCreate(name string, branch string) (Commit, error)

	BranchGet(name string) (Branch, error)
	BranchList() ([]Branch, error)
	BranchCreate(name string, commit string) (Branch, error)

	PipelineCreate(name string, content io.Reader, branch string) error
	PipelineWait(name string, commit string) error
	PipelineFileGet(pipelineName string, fileName string, commit string) (File, error)
	PipelineFileGetAll(pipelineName string, fileName string, commit string, shard string) ([]File, error)
}

type Replica interface {
	From() (string, error)
	Push(diff io.Reader) error
	Pull(from string, p btrfs.Pusher) error
}

type Shard interface {
	Filesystem
	Replica
	FillRole()
	FindRole()
	EnsureRepos() error
}