52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
// This script reads a geth genesis config and outputs the corresponding genesis block as
|
|
// RPC-compatible JSON.
|
|
//
|
|
// E.g.: eth-dump-genblock genesis.json > genesis_block.json
|
|
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/trie"
|
|
)
|
|
|
|
func main() {
|
|
if len(os.Args) != 2 {
|
|
fatal(fmt.Sprintf("Usage: %s genesis.json", os.Args[0]))
|
|
}
|
|
configPath := os.Args[1]
|
|
|
|
file, err := os.Open(configPath)
|
|
if err != nil {
|
|
fatal("Failed to read genesis config file:", err)
|
|
}
|
|
|
|
genesis := new(core.Genesis)
|
|
if err := json.NewDecoder(file).Decode(genesis); err != nil {
|
|
fatal("Failed to parse genesis config:", err)
|
|
}
|
|
|
|
db := rawdb.NewMemoryDatabase()
|
|
block, err := genesis.Commit(db, trie.NewDatabase(db))
|
|
if err != nil {
|
|
fatal("Failed to create genesis block:", err)
|
|
}
|
|
|
|
rpcBlock := RPCMarshalBlock(block)
|
|
blockJSON, err := json.MarshalIndent(rpcBlock, "", " ")
|
|
if err != nil {
|
|
fatal("Failed to convert block to JSON:", err)
|
|
}
|
|
|
|
fmt.Println(string(blockJSON))
|
|
}
|
|
|
|
func fatal(args ...any) {
|
|
fmt.Fprintln(os.Stderr, args...)
|
|
os.Exit(1)
|
|
}
|