// Copyright 2017 The go-ethereum Authors // This file is part of the go-ethereum library. // // The go-ethereum library is free software: you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // The go-ethereum library 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 Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. // +build none /* The mkalloc tool creates the genesis allocation constants in genesis_alloc.go It outputs a const declaration that contains an RLP-encoded list of (address, balance) tuples. go run mkalloc.go genesis.json */ package main import ( "encoding/json" "fmt" "math/big" "os" "sort" "strconv" "github.com/ava-labs/coreth/core" "github.com/ava-labs/go-ethereum/rlp" ) type allocItem struct{ Addr, Balance *big.Int } type allocList []allocItem func (a allocList) Len() int { return len(a) } func (a allocList) Less(i, j int) bool { return a[i].Addr.Cmp(a[j].Addr) < 0 } func (a allocList) Swap(i, j int) { a[i], a[j] = a[j], a[i] } func makelist(g *core.Genesis) allocList { a := make(allocList, 0, len(g.Alloc)) for addr, account := range g.Alloc { if len(account.Storage) > 0 || len(account.Code) > 0 || account.Nonce != 0 { panic(fmt.Sprintf("can't encode account %x", addr)) } bigAddr := new(big.Int).SetBytes(addr.Bytes()) a = append(a, allocItem{bigAddr, account.Balance}) } sort.Sort(a) return a } func makealloc(g *core.Genesis) string { a := makelist(g) data, err := rlp.EncodeToBytes(a) if err != nil { panic(err) } return strconv.QuoteToASCII(string(data)) } func main() { if len(os.Args) != 2 { fmt.Fprintln(os.Stderr, "Usage: mkalloc genesis.json") os.Exit(1) } g := new(core.Genesis) file, err := os.Open(os.Args[1]) if err != nil { panic(err) } if err := json.NewDecoder(file).Decode(g); err != nil { panic(err) } fmt.Println("const allocData =", makealloc(g)) }