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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| package genesis | ||
|
|
||
| import ( | ||
| "fmt" | ||
| mrand "math/rand" | ||
| "time" | ||
|
|
||
| "github.com/celestiaorg/celestia-app/app" | ||
| "github.com/celestiaorg/celestia-app/app/encoding" | ||
| "github.com/cosmos/cosmos-sdk/client/tx" | ||
| cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec" | ||
| "github.com/cosmos/cosmos-sdk/crypto/keyring" | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types" | ||
| "github.com/tendermint/tendermint/crypto" | ||
| ) | ||
|
|
||
| type Account struct { | ||
| Name string | ||
| InitialTokens int64 | ||
| } | ||
|
|
||
| func NewAccounts(initBal int64, names ...string) []Account { | ||
| accounts := make([]Account, len(names)) | ||
| for i, name := range names { | ||
| accounts[i] = Account{ | ||
| Name: name, | ||
| InitialTokens: initBal, | ||
| } | ||
| } | ||
| return accounts | ||
| } | ||
|
|
||
| func (ga *Account) ValidateBasic() error { | ||
| if ga.Name == "" { | ||
| return fmt.Errorf("name cannot be empty") | ||
| } | ||
| if ga.InitialTokens <= 0 { | ||
| return fmt.Errorf("initial tokens must be positive") | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| type Validator struct { | ||
| Account | ||
| Stake int64 | ||
|
|
||
| // ConsensusKey is the key used by the validator to sign votes. | ||
| ConsensusKey crypto.PrivKey | ||
| NetworkKey crypto.PrivKey | ||
| } | ||
|
|
||
| func NewDefaultValidator(name string) Validator { | ||
| r := mrand.New(mrand.NewSource(time.Now().UnixNano())) | ||
| return Validator{ | ||
| Account: Account{ | ||
| Name: name, | ||
| InitialTokens: 999_999_999_999_999_999, | ||
| }, | ||
| Stake: 99_999_999_999_999_999, // save some tokens for fees | ||
| ConsensusKey: GenerateEd25519(NewSeed(r)), | ||
| NetworkKey: GenerateEd25519(NewSeed(r)), | ||
| } | ||
| } | ||
|
|
||
| // ValidateBasic performs stateless validation on the validitor | ||
| func (v *Validator) ValidateBasic() error { | ||
| if err := v.Account.ValidateBasic(); err != nil { | ||
| return err | ||
| } | ||
| if v.Stake <= 0 { | ||
| return fmt.Errorf("stake must be positive") | ||
| } | ||
| if v.ConsensusKey == nil { | ||
| return fmt.Errorf("consensus key cannot be empty") | ||
| } | ||
| if v.Stake > v.InitialTokens { | ||
| return fmt.Errorf("stake cannot be greater than initial tokens") | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| // GenTx generates a genesis transaction to create a validator as configured by | ||
| // the validator struct. It assumes the validator's genesis account has already | ||
| // been added to the keyring and that the sequence for that account is 0. | ||
| func (v *Validator) GenTx(ecfg encoding.Config, kr keyring.Keyring, chainID string) (sdk.Tx, error) { | ||
| rec, err := kr.Key(v.Name) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| addr, err := rec.GetAddress() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| commission, err := sdk.NewDecFromStr("0.5") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| pk, err := cryptocodec.FromTmPubKeyInterface(v.ConsensusKey.PubKey()) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("converting public key for node %s: %w", v.Name, err) | ||
| } | ||
|
|
||
| createValMsg, err := stakingtypes.NewMsgCreateValidator( | ||
| sdk.ValAddress(addr), | ||
| pk, | ||
| sdk.NewCoin(app.BondDenom, sdk.NewInt(v.Stake)), | ||
| stakingtypes.NewDescription(v.Name, "", "", "", ""), | ||
| stakingtypes.NewCommissionRates(commission, sdk.OneDec(), sdk.OneDec()), | ||
| sdk.NewInt(v.Stake/2), | ||
| ) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| fee := sdk.NewCoins(sdk.NewCoin(app.BondDenom, sdk.NewInt(1))) | ||
| txBuilder := ecfg.TxConfig.NewTxBuilder() | ||
| err = txBuilder.SetMsgs(createValMsg) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| txBuilder.SetFeeAmount(fee) // Arbitrary fee | ||
| txBuilder.SetGasLimit(1000000) // Need at least 100386 | ||
|
|
||
| txFactory := tx.Factory{} | ||
| txFactory = txFactory. | ||
| WithChainID(chainID). | ||
| WithKeybase(kr). | ||
| WithTxConfig(ecfg.TxConfig) | ||
|
|
||
| err = tx.Sign(txFactory, v.Name, txBuilder, true) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return txBuilder.GetTx(), nil | ||
| } |
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