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genesis.go
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genesis.go
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package utils
import (
"encoding/json"
"fmt"
"strings"
"github.com/gotabit/juno/v5/node"
tmjson "github.com/cometbft/cometbft/libs/json"
tmos "github.com/cometbft/cometbft/libs/os"
tmtypes "github.com/cometbft/cometbft/types"
)
// ReadGenesisFileGenesisDoc reads the genesis file located at the given path
func ReadGenesisFileGenesisDoc(genesisPath string) (*tmtypes.GenesisDoc, error) {
var genesisDoc *tmtypes.GenesisDoc
bz, err := tmos.ReadFile(genesisPath)
if err != nil {
return nil, fmt.Errorf("failed to read genesis file: %s", err)
}
err = tmjson.Unmarshal(bz, &genesisDoc)
if err != nil {
return nil, fmt.Errorf("failed to unmarshal genesis doc: %s", err)
}
return genesisDoc, nil
}
// GetGenesisState returns the genesis state by getting it from the given genesis doc
func GetGenesisState(doc *tmtypes.GenesisDoc) (map[string]json.RawMessage, error) {
var genesisState map[string]json.RawMessage
err := json.Unmarshal(doc.AppState, &genesisState)
if err != nil {
return nil, fmt.Errorf("failed to unmarshal genesis state: %s", err)
}
return genesisState, nil
}
// GetGenesisDocAndState reads the genesis from node or file and returns genesis doc and state
func GetGenesisDocAndState(genesisPath string, node node.Node) (*tmtypes.GenesisDoc, map[string]json.RawMessage, error) {
var genesisDoc *tmtypes.GenesisDoc
if strings.TrimSpace(genesisPath) != "" {
genDoc, err := ReadGenesisFileGenesisDoc(genesisPath)
if err != nil {
return nil, nil, fmt.Errorf("error while reading genesis file: %s", err)
}
genesisDoc = genDoc
} else {
response, err := node.Genesis()
if err != nil {
return nil, nil, fmt.Errorf("failed to get genesis: %s", err)
}
genesisDoc = response.Genesis
}
genesisState, err := GetGenesisState(genesisDoc)
if err != nil {
return nil, nil, err
}
return genesisDoc, genesisState, nil
}