github.com/codingfuture/orig-energi3@v0.8.4/cmd/swarm/explore.go (about)

     1  // Copyright 2019 The Energi Core Authors
     2  // Copyright 2018 The go-ethereum Authors
     3  // This file is part of Energi Core.
     4  //
     5  // Energi Core is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // Energi Core is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU General Public License
    16  // along with Energi Core. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  // Command bzzhash computes a swarm tree hash.
    19  package main
    20  
    21  import (
    22  	"context"
    23  	"fmt"
    24  	"os"
    25  
    26  	"github.com/ethereum/go-ethereum/cmd/utils"
    27  	"github.com/ethereum/go-ethereum/swarm/storage"
    28  	"gopkg.in/urfave/cli.v1"
    29  )
    30  
    31  var hashesCommand = cli.Command{
    32  	Action:             hashes,
    33  	CustomHelpTemplate: helpTemplate,
    34  	Name:               "hashes",
    35  	Usage:              "print all hashes of a file to STDOUT",
    36  	ArgsUsage:          "<file>",
    37  	Description:        "Prints all hashes of a file to STDOUT",
    38  }
    39  
    40  func hashes(ctx *cli.Context) {
    41  	args := ctx.Args()
    42  	if len(args) < 1 {
    43  		utils.Fatalf("Usage: swarm hashes <file name>")
    44  	}
    45  	f, err := os.Open(args[0])
    46  	if err != nil {
    47  		utils.Fatalf("Error opening file " + args[1])
    48  	}
    49  	defer f.Close()
    50  
    51  	fileStore := storage.NewFileStore(&storage.FakeChunkStore{}, storage.NewFileStoreParams())
    52  	refs, err := fileStore.GetAllReferences(context.TODO(), f, false)
    53  	if err != nil {
    54  		utils.Fatalf("%v\n", err)
    55  	} else {
    56  		for _, r := range refs {
    57  			fmt.Println(r.String())
    58  		}
    59  	}
    60  }