50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
|
// Copyright 2016 The go-ethereum Authors
|
||
|
|
// This file is part of go-ethereum.
|
||
|
|
//
|
||
|
|
// go-ethereum is free software: you can redistribute it and/or modify
|
||
|
|
// it under the terms of the GNU General Public License as published by
|
||
|
|
// the Free Software Foundation, either version 3 of the License, or
|
||
|
|
// (at your option) any later version.
|
||
|
|
//
|
||
|
|
// go-ethereum is distributed in the hope that it will be useful,
|
||
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
// GNU General Public License for more details.
|
||
|
|
//
|
||
|
|
// You should have received a copy of the GNU General Public License
|
||
|
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
// Command bzzhash computes a swarm tree hash.
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"os"
|
||
|
|
"runtime"
|
||
|
|
|
||
|
|
"github.com/ethereum/go-ethereum/swarm/storage"
|
||
|
|
)
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
runtime.GOMAXPROCS(runtime.NumCPU())
|
||
|
|
|
||
|
|
if len(os.Args) < 2 {
|
||
|
|
fmt.Println("Usage: bzzhash <file name>")
|
||
|
|
os.Exit(0)
|
||
|
|
}
|
||
|
|
f, err := os.Open(os.Args[1])
|
||
|
|
if err != nil {
|
||
|
|
fmt.Println("Error opening file " + os.Args[1])
|
||
|
|
os.Exit(1)
|
||
|
|
}
|
||
|
|
|
||
|
|
stat, _ := f.Stat()
|
||
|
|
chunker := storage.NewTreeChunker(storage.NewChunkerParams())
|
||
|
|
key, err := chunker.Split(f, stat.Size(), nil, nil, nil)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Fprintf(os.Stderr, "%v\n", err)
|
||
|
|
} else {
|
||
|
|
fmt.Printf("%v\n", key)
|
||
|
|
}
|
||
|
|
}
|