dag

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v0.0.5 Latest Latest Go to latest Published: Mar 4, 2021 License: AGPL-3.0 Imports: 14 Imported by: 0

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const DefaultChunker = "buzhash"

DefaultChunker is the name of the default chunker algorithm.

This section is empty.

func Chunk(ctx context.Context, dag ipld.DAGService, reader io.Reader) (ipld.Node, error)

Chunk splits the given reader into chunks and arranges them into a dag node.

func Diff(ctx context.Context, ds ipld.DAGService, before, after ipld.Node) (map[string]dagutils.ChangeType, error)

Diff returns a flattened map of changes between before and after.

func IsAncestor(ctx context.Context, ds ipld.NodeGetter, parent, child cid.Cid) (bool, error)

IsAncestor returns true if child is an ancestor of parent.

func ReadCar(bs blockstore.Blockstore, r io.Reader) (cid.Cid, error)

ReadCar reads the car into the given dag and returns the root cid.

func Status(ctx context.Context, ds ipld.DAGService, tree ipld.Node, id cid.Cid) (map[string]dagutils.ChangeType, error)

Status returns the changes between the given tree and commit with id.

func Walk(ctx context.Context, ds ipld.NodeGetter, id cid.Cid, visit func(cid.Cid) bool) error

Walk performs a depth first traversal of parent commits starting at the given id.

func WriteCar(ctx context.Context, ds ipld.NodeGetter, head cid.Cid, refs *cid.Set, w io.Writer) error

WriteCar writes the dag into the given writer starting at head and stopping at refs.

This section is empty.