carutil

Documentation

Index

• Constants
• func BuildFileNode(ctx context.Context, item Finfo, bufDs ipld.DAGService, cidBuilder cid.Builder) (node ipld.Node, err error)
• func CalculateCid(r io.Reader) (cid.Cid, error)
• func CreateCar(inputPath string, outputPath string) (cid.Cid, error)
• type CarStream
• type CidMapValue
• type FSBuilder
  • func NewFSBuilder(root *dag.ProtoNode, ds ipld.DAGService) *FSBuilder
  • func (b *FSBuilder) Build() (rootn *FsNode, err error)
• type Finfo
• type FsNode
  • func GenerateCar(ctx context.Context, fileList []Finfo, parentPath string, tmpDir string, ...) (ipldDag *FsNode, cid string, cidMap map[string]CidMapValue, err error)

Constants

const UnixfsChunkSize uint64 = 1 << 20

const UnixfsLinksPerLevel = 1 << 10

Functions

func BuildFileNode

func BuildFileNode(ctx context.Context, item Finfo, bufDs ipld.DAGService, cidBuilder cid.Builder) (node ipld.Node, err error)

func CalculateCid

func CalculateCid(r io.Reader) (cid.Cid, error)

CalculateCid calculates the CID for the given reader.

func CreateCar

func CreateCar(inputPath string, outputPath string) (cid.Cid, error)

createCar creates a car

Types

type CarStream

type CarStream interface {
	io.ReadWriter
	io.ReaderAt
	io.WriterAt
	io.Seeker
}

CarStream is an interface that combines io.ReadWriter, io.ReaderAt, io.WriterAt, io.Seeker.

type CidMapValue

type CidMapValue struct {
	IsDir bool
	Cid   string
}

type FSBuilder

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

func NewFSBuilder

func NewFSBuilder(root *dag.ProtoNode, ds ipld.DAGService) *FSBuilder

func (*FSBuilder) Build

func (b *FSBuilder) Build() (rootn *FsNode, err error)

type Finfo

type Finfo struct {
	Path  string
	Size  int64
	Start int64
	End   int64
}

type FsNode

type FsNode struct {
	Name string
	Hash string
	Size uint64
	Link []FsNode
}

func GenerateCar

func GenerateCar(ctx context.Context, fileList []Finfo, parentPath string, tmpDir string, output io.Writer) (ipldDag *FsNode, cid string, cidMap map[string]CidMapValue, err error)