chain

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

type ClusterPoint struct {
	// Name is the manager-generated common point name.
	Name string
	// Timestamp is the earliest timestamp among the shard points.
	Timestamp time.Time
	// Topology of the segment this point was stitched in, constant within it.
	// It lists every backed-up replicaset, including those a selection left out
	// of Shards; a consumer that cares only about the restored ones narrows it
	// by the keys of Shards. Consumers compare it against the live cluster;
	// chain does not.
	Topology backup.Topology
	// Shards maps a replicaset UUID to its position at this point.
	Shards map[string]Position
}

type Entry struct {
	// Manifest is the original cluster manifest.
	Manifest *backup.ClusterManifest
	// Problems is empty only when this manifest is usable for recovery.
	Problems []*Problem
}

type Group struct {
	// Entries starts with the full backup and follows previous_backup_id.
	Entries []*Entry
}

type Option func(*buildOptions)

type Plan struct {
	// Point is the recovery target.
	Point ClusterPoint
	// Shards maps a replicaset UUID to the backup path needed for it.
	Shards map[string]ShardPlan
}

type Position struct {
	// ReplicaID is the source instance identifier in the replicaset.
	ReplicaID uint32
	// LSN is the xlog position on that replica.
	LSN uint64
}

type Problem struct {
	// Kind classifies the problem.
	Kind ProblemKind
	// BackupID identifies the manifest whose recovery path is affected.
	BackupID string
	// Inherited reports that the problem originated in an ancestor.
	Inherited bool
	// Detail identifies the missing, conflicting, or mismatched link.
	Detail string
}

type ProblemKind int

type Resolution struct {
	// Status explains whether Point can be used.
	Status Status
	// Point is selected for StatusOK, or the last healthy point before a break.
	Point *ClusterPoint
	// Before and After are nearest points around an unresolved target time.
	Before *ClusterPoint
	After  *ClusterPoint
}

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

type ShardPlan struct {
	// Backups starts with a full backup and continues with incrementals.
	Backups []*backup.ClusterManifest
	// TrimTo limits the final incremental to the requested position.
	TrimTo *Position
}

type Status int

type Unreadable struct {
	// Key is the storage key of the manifest.
	Key string
	// Err explains why the manifest could not be used.
	Err error
}