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Types ¶
type Store ¶
type Store interface { // Initialize sets up the storage layer Initialize() error // Exists returns true if a checkpoint with `uid` exists in the store, false otherwise Exists(uid string) (bool, error) // Save saves the checkpoint to the storage layer Save(c checkpoint.Checkpoint) error // Load loads the checkpoint with UID `uid` from the storage layer, or returns an error if the checkpoint does not exist Load(uid string) (checkpoint.Checkpoint, error) // CurrentModified returns the last time that the current UID was set CurrentModified() (time.Time, error) // Current returns the source that points to the current checkpoint, or nil if no current checkpoint is set Current() (checkpoint.RemoteConfigSource, error) // LastKnownGood returns the source that points to the last-known-good checkpoint, or nil if no last-known-good checkpoint is set LastKnownGood() (checkpoint.RemoteConfigSource, error) // SetCurrent saves the source that points to the current checkpoint, set to nil to unset SetCurrent(source checkpoint.RemoteConfigSource) error // SetCurrentUpdated is similar to SetCurrent, but also returns whether the current checkpoint changed as a result SetCurrentUpdated(source checkpoint.RemoteConfigSource) (bool, error) // SetLastKnownGood saves the source that points to the last-known-good checkpoint, set to nil to unset SetLastKnownGood(source checkpoint.RemoteConfigSource) error // Reset unsets the current and last-known-good UIDs and returns whether the current UID was unset as a result of the reset Reset() (bool, error) }
Store saves checkpoints and information about which is the current and last-known-good checkpoint to a storage layer
func NewFsStore ¶
func NewFsStore(fs utilfs.Filesystem, checkpointsDir string) Store
NewFsStore returns a Store that saves its data in `checkpointsDir`
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