transaction

type Interface interface {
	Init(deployment.Deployment) (UpgradeHelper, error)
	Start() (*Transaction, error)
	Commit(trans *Transaction, cleanup func() error) error
	Rollback(*Transaction, error) error

	GetActiveSnapshotIDs() ([]int, error)
}

type Merge struct {
	Old      string // old unmodified tree
	New      string // new base tree where modifications should be applied
	Modified string // modified tree on top of the old tree
}

type Overwrite struct {
	// contains filtered or unexported fields
}

type Transaction struct {
	ID     int
	Path   string
	Merges map[string]*Merge
	// contains filtered or unexported fields
}

type UpgradeHelper interface {
	SyncImageContent(*deployment.ImageSource, *Transaction, ...unpack.Opt) error
	Merge(*Transaction) error
	UpdateFstab(*Transaction) error
	Lock(*Transaction) error
	GenerateKernelCmdline(*Transaction) string
}