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cmd/puppeth: support managing fork block in the chain config

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This commit is contained in:
Péter Szilágyi
2017-10-04 12:15:58 +03:00
parent c0a1f1c907
commit edba5e9854
4 changed files with 77 additions and 11 deletions
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52
cmd/puppeth/wizard_genesis.go
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@ -18,7 +18,9 @@ package main
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"math/big"
"math/rand"
"time"
@ -135,3 +137,53 @@ func (w *wizard) makeGenesis() {
// All done, store the genesis and flush to disk
w.conf.genesis = genesis
}
// manageGenesis permits the modification of chain configuration parameters in
// a genesis config and the export of the entire genesis spec.
func (w *wizard) manageGenesis() {
// Figure out whether to modify or export the genesis
fmt.Println()
fmt.Println(" 1. Modify existing fork rules")
fmt.Println(" 2. Export genesis configuration")
choice := w.read()
switch {
case choice == "1":
// Fork rule updating requested, iterate over each fork
fmt.Println()
fmt.Printf("Which block should Homestead come into effect? (default = %v)\n", w.conf.genesis.Config.HomesteadBlock)
w.conf.genesis.Config.HomesteadBlock = w.readDefaultBigInt(w.conf.genesis.Config.HomesteadBlock)
fmt.Println()
fmt.Printf("Which block should EIP150 come into effect? (default = %v)\n", w.conf.genesis.Config.EIP150Block)
w.conf.genesis.Config.EIP150Block = w.readDefaultBigInt(w.conf.genesis.Config.EIP150Block)
fmt.Println()
fmt.Printf("Which block should EIP155 come into effect? (default = %v)\n", w.conf.genesis.Config.EIP155Block)
w.conf.genesis.Config.EIP155Block = w.readDefaultBigInt(w.conf.genesis.Config.EIP155Block)
fmt.Println()
fmt.Printf("Which block should EIP158 come into effect? (default = %v)\n", w.conf.genesis.Config.EIP158Block)
w.conf.genesis.Config.EIP158Block = w.readDefaultBigInt(w.conf.genesis.Config.EIP158Block)
fmt.Println()
fmt.Printf("Which block should Byzantium come into effect? (default = %v)\n", w.conf.genesis.Config.ByzantiumBlock)
w.conf.genesis.Config.ByzantiumBlock = w.readDefaultBigInt(w.conf.genesis.Config.ByzantiumBlock)
out, _ := json.MarshalIndent(w.conf.genesis.Config, "", " ")
fmt.Printf("Chain configuration updated:\n\n%s\n", out)
case choice == "2":
// Save whatever genesis configuration we currently have
fmt.Println()
fmt.Printf("Which file to save the genesis into? (default = %s.json)\n", w.network)
out, _ := json.MarshalIndent(w.conf.genesis, "", " ")
if err := ioutil.WriteFile(w.readDefaultString(fmt.Sprintf("%s.json", w.network)), out, 0644); err != nil {
log.Error("Failed to save genesis file", "err", err)
}
log.Info("Exported existing genesis block")
default:
log.Error("That's not something I can do")
}
}