package main import ( "crypto/sha256" "fmt" "io" "os" "github.com/fd0/khepri/chunker" ) func main() { count, bytes := 0, 0 min := 0 max := 0 var ( err error file *os.File = os.Stdin ) if len(os.Args) > 1 { file, err = os.Open(os.Args[1]) if err != nil { panic(err) } } ch := chunker.New(file) for { chunk, err := ch.Next() if chunk != nil { fmt.Printf("%d %016x %02x\n", chunk.Length, chunk.Cut, sha256.Sum256(chunk.Data)) count++ bytes += chunk.Length if chunk.Length == chunker.MaxSize { max++ } else if chunk.Length == chunker.MinSize { min++ } } if err == io.EOF { break } } var avg int if count > 0 { avg = bytes / count } fmt.Fprintf(os.Stderr, "%d chunks, average size %d (%d min size, %d max size chunks)\n", count, avg, min, max) }