erigon-pulse/turbo/app/init.go
Andrew Ashikhmin d9f342bb43
Restore MigrateFlags (#6055)
Another postfix to PR #6047. This fixes `--datadir` flag passed to
`erigon init`. See also
https://github.com/ethereum/go-ethereum/pull/24751.
2022-11-15 21:38:31 +01:00

69 lines
1.9 KiB
Go

package app
import (
"encoding/json"
"os"
"github.com/ledgerwatch/log/v3"
"github.com/urfave/cli/v2"
"github.com/ledgerwatch/erigon-lib/kv"
"github.com/ledgerwatch/erigon/cmd/utils"
"github.com/ledgerwatch/erigon/core"
"github.com/ledgerwatch/erigon/node"
)
var initCommand = cli.Command{
Action: MigrateFlags(initGenesis),
Name: "init",
Usage: "Bootstrap and initialize a new genesis block",
ArgsUsage: "<genesisPath>",
Flags: []cli.Flag{
&utils.DataDirFlag,
},
Category: "BLOCKCHAIN COMMANDS",
Description: `
The init command initializes a new genesis block and definition for the network.
This is a destructive action and changes the network in which you will be
participating.
It expects the genesis file as argument.`,
}
// initGenesis will initialise the given JSON format genesis file and writes it as
// the zero'd block (i.e. genesis) or will fail hard if it can't succeed.
func initGenesis(ctx *cli.Context) error {
// Make sure we have a valid genesis JSON
genesisPath := ctx.Args().First()
if len(genesisPath) == 0 {
utils.Fatalf("Must supply path to genesis JSON file")
}
file, err := os.Open(genesisPath)
if err != nil {
utils.Fatalf("Failed to read genesis file: %v", err)
}
defer file.Close()
genesis := new(core.Genesis)
if err := json.NewDecoder(file).Decode(genesis); err != nil {
utils.Fatalf("invalid genesis file: %v", err)
}
// Open and initialise both full and light databases
stack := MakeConfigNodeDefault(ctx)
defer stack.Close()
chaindb, err := node.OpenDatabase(stack.Config(), log.New(ctx), kv.ChainDB)
if err != nil {
utils.Fatalf("Failed to open database: %v", err)
}
_, hash, err := core.CommitGenesisBlock(chaindb, genesis)
if err != nil {
utils.Fatalf("Failed to write genesis block: %v", err)
}
chaindb.Close()
log.Info("Successfully wrote genesis state", "hash", hash.Hash())
return nil
}