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config.go
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config.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package tendermint
import (
"encoding/json"
"fmt"
"os"
"code.vegaprotocol.io/vega/core/genesis"
vgfs "code.vegaprotocol.io/vega/libs/fs"
tmconfig "github.com/tendermint/tendermint/config"
tmcrypto "github.com/tendermint/tendermint/crypto"
tmjson "github.com/tendermint/tendermint/libs/json"
tmos "github.com/tendermint/tendermint/libs/os"
"github.com/tendermint/tendermint/privval"
tmtypes "github.com/tendermint/tendermint/types"
)
type Config struct {
config *tmconfig.Config
}
func NewConfig(home string) *Config {
c := tmconfig.DefaultConfig()
c.SetRoot(os.ExpandEnv(home))
return &Config{
config: c,
}
}
func (c *Config) PublicValidatorKey() (tmcrypto.PubKey, error) {
privValKeyFile := c.config.PrivValidatorKeyFile()
if !tmos.FileExists(privValKeyFile) {
return nil, fmt.Errorf("file \"%s\" not found", privValKeyFile)
}
// read private validator
pv := privval.LoadFilePV(
c.config.PrivValidatorKeyFile(),
c.config.PrivValidatorStateFile(),
)
pubKey, err := pv.GetPubKey()
if err != nil {
return nil, fmt.Errorf("can't get tendermint public key: %w", err)
}
return pubKey, nil
}
func (c *Config) Genesis() (*tmtypes.GenesisDoc, *genesis.State, error) {
path := c.config.GenesisFile()
data, err := vgfs.ReadFile(path)
if err != nil {
return nil, nil, fmt.Errorf("couldn't read genesis file: %w", err)
}
doc := &tmtypes.GenesisDoc{}
err = tmjson.Unmarshal(data, doc)
if err != nil {
return nil, nil, fmt.Errorf("couldn't unmarshal the genesis document: %w", err)
}
state := &genesis.State{}
if len(doc.AppState) != 0 {
if err := json.Unmarshal(doc.AppState, state); err != nil {
return nil, nil, fmt.Errorf("couldn't unmarshal genesis state: %w", err)
}
}
return doc, state, nil
}
func (c *Config) SaveGenesis(doc *tmtypes.GenesisDoc) error {
path := c.config.GenesisFile()
if err := doc.SaveAs(path); err != nil {
return fmt.Errorf("couldn't save the genesis file: %w", err)
}
return nil
}
func AddAppStateToGenesis(doc *tmtypes.GenesisDoc, state *genesis.State) error {
rawGenesisState, err := json.Marshal(state)
if err != nil {
return fmt.Errorf("couldn't marshal the genesis state as JSON: %w", err)
}
doc.AppState = rawGenesisState
return nil
}