0g-chain/migrate/v0_8/tendermint/v0_32/genesis.go

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v0.8 Migration Scripts (#518) * initial sketch * add module migrations * add migrations for all accout types * test account migration * add tendermint migration and migrate cmd * remove need for errors pkg dependency * add bech32 decoding fork * add suggested params and cmd to write them * add basic upgrade instructions * fix tests * address some migration todos * tidy contrib folder * finalize params values * align cdp init genesis with other modules * add tendermint and distribution test add custom distribution migration to patch bug * add staking migration test * add slashing, evidence tests, refactor auth tests * add full migration test * remove go-amino dependency from go.mod also tidy up unused indirect dependencies * address remaining TODOs * remove commented out code from legacy types * add spot/liquidation markets ids to kava-3 params * Apply suggestions from code review Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com> Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com> * address code review suggestions * add validate genesis to migrate test * refactor add params func * remove commented out code from old types * fix add params * add deputy address * add tests using exported kava-2 state * incorporate new cdp params from master * update params from review Co-authored-by: Kevin Davis <karzak@users.noreply.github.com> * add deputy account * add committee permissions for new params Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com> Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com> Co-authored-by: Kevin Davis <karzak@users.noreply.github.com>
2020-06-03 19:35:00 +00:00
package v032
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"time"
//"github.com/pkg/errors" // replaced this pkg with "errors" to avoid adding a dependency
tmbytes "github.com/tendermint/tendermint/libs/bytes"
"github.com/tendermint/tendermint/types"
tmtime "github.com/tendermint/tendermint/types/time"
)
const (
// MaxChainIDLen is a maximum length of the chain ID.
MaxChainIDLen = 50
)
// GenesisDoc defines the initial conditions for a tendermint blockchain, in particular its validator set.
type GenesisDoc struct {
GenesisTime time.Time `json:"genesis_time"`
ChainID string `json:"chain_id"`
ConsensusParams *ConsensusParams `json:"consensus_params,omitempty"`
Validators []types.GenesisValidator `json:"validators,omitempty"` // v0.33 GenesisValidator is backwards compatible with v0.32
AppHash tmbytes.HexBytes `json:"app_hash"` // moved from `common` to `bytes` as they are the same between v0.32 and v0.33
AppState json.RawMessage `json:"app_state,omitempty"`
}
// ValidateAndComplete checks that all necessary fields are present
// and fills in defaults for optional fields left empty
func (genDoc *GenesisDoc) ValidateAndComplete() error {
if genDoc.ChainID == "" {
return errors.New("Genesis doc must include non-empty chain_id")
}
if len(genDoc.ChainID) > MaxChainIDLen {
return fmt.Errorf("chain_id in genesis doc is too long (max: %d)", MaxChainIDLen) // replaced errors with fmt
}
if genDoc.ConsensusParams == nil {
genDoc.ConsensusParams = DefaultConsensusParams()
} /*else if err := genDoc.ConsensusParams.Validate(); err != nil {
return err
}*/ // remove validation to avoid having to copy in more types and methods from v0.32
for i, v := range genDoc.Validators {
if v.Power == 0 {
return fmt.Errorf("The genesis file cannot contain validators with no voting power: %v", v) // replaced errors with fmt
}
if len(v.Address) > 0 && !bytes.Equal(v.PubKey.Address(), v.Address) {
return fmt.Errorf("Incorrect address for validator %v in the genesis file, should be %v", v, v.PubKey.Address()) // replaced errors with fmt
}
if len(v.Address) == 0 {
genDoc.Validators[i].Address = v.PubKey.Address()
}
}
if genDoc.GenesisTime.IsZero() {
genDoc.GenesisTime = tmtime.Now()
}
return nil
}
//------------------------------------------------------------
// Make genesis state from file
// GenesisDocFromJSON unmarshalls JSON data into a GenesisDoc.
func GenesisDocFromJSON(jsonBlob []byte) (*GenesisDoc, error) {
genDoc := GenesisDoc{}
err := Cdc.UnmarshalJSON(jsonBlob, &genDoc)
if err != nil {
return nil, err
}
if err := genDoc.ValidateAndComplete(); err != nil {
return nil, err
}
return &genDoc, err
}
// GenesisDocFromFile reads JSON data from a file and unmarshalls it into a GenesisDoc.
func GenesisDocFromFile(genDocFile string) (*GenesisDoc, error) {
jsonBlob, err := ioutil.ReadFile(genDocFile)
if err != nil {
return nil, fmt.Errorf("Couldn't read GenesisDoc file: %w", err)
}
genDoc, err := GenesisDocFromJSON(jsonBlob)
if err != nil {
return nil, fmt.Errorf("Error reading GenesisDoc at %v: %w", genDocFile, err)
}
return genDoc, nil
}