rediff

type Context interface {
	GetTargetContainer() *tlc.Container
	GetSourceContainer() *tlc.Container
	GetDiffMappings() DiffMappings
	Partitions() int
	Optimize(params OptimizeParams) error
}

type DiffMapping struct {
	TargetIndex int64
	NumBytes    int64
}

type DiffMappings map[int64]*DiffMapping

type FileOrigin map[int64]int64

type OptimizeParams struct {
	TargetPool lake.Pool
	SourcePool lake.Pool

	PatchWriter io.Writer
}

type Params struct {
	// PatchReader is a source used twice: to find diff mappings, and then again
	// to copy rsync operations for files that we won't optimize.
	// rediff.Context is in charge of resuming, since it uses it twice.
	PatchReader savior.SeekSource

	// RediffSizeLimit (optional) is the maximum size of a file we'll attempt to rediff.
	// If a file is larger than that, ops will just be copied.
	RediffSizeLimit int64

	// optional
	SuffixSortConcurrency int
	// optional
	Partitions int
	// optional
	Compression *pwr.CompressionSettings
	// optional
	Consumer *state.Consumer
	// optional
	BsdiffStats *bsdiff.DiffStats
	// optional
	ForceMapAll bool
	// optional
	MeasureMem bool
}