84 lines
2.2 KiB
Go
84 lines
2.2 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package eth
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import (
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"encoding/json"
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"fmt"
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"os"
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"github.com/ethereum/go-ethereum/cmd/utils"
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log "github.com/sirupsen/logrus"
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sdtypes "github.com/ethereum/go-ethereum/statediff/types"
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"github.com/ethereum/go-ethereum/params"
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)
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func ResolveToNodeType(nodeType int) sdtypes.NodeType {
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switch nodeType {
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case 0:
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return sdtypes.Branch
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case 1:
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return sdtypes.Extension
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case 2:
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return sdtypes.Leaf
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case 3:
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return sdtypes.Removed
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default:
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return sdtypes.Unknown
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}
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}
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// LoadConfig loads chain config from json file
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func LoadConfig(chainConfigPath string) (*params.ChainConfig, error) {
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file, err := os.Open(chainConfigPath)
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if err != nil {
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utils.Fatalf("Failed to read chain config file: %v", err)
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return nil, err
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}
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defer file.Close()
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chainConfig := new(params.ChainConfig)
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if err := json.NewDecoder(file).Decode(chainConfig); err != nil {
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utils.Fatalf("invalid chain config file: %v", err)
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return nil, err
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}
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log.Infof("Using chain config from %s file. Content %+v", chainConfigPath, chainConfig)
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return chainConfig, nil
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}
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// ChainConfig returns the appropriate ethereum chain config for the provided chain id
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func ChainConfig(chainID uint64) (*params.ChainConfig, error) {
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switch chainID {
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case 1:
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return params.MainnetChainConfig, nil
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case 3:
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return params.RopstenChainConfig, nil
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case 4:
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return params.RinkebyChainConfig, nil
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case 5:
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return params.GoerliChainConfig, nil
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default:
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return nil, fmt.Errorf("chain config for chainid %d not available", chainID)
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}
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}
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