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genesis: add support for arbitrary initial height (#5191)

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Adds a genesis parameter `initial_height` which specifies the initial block height, as well as ABCI `RequestInitChain.InitialHeight` to pass it to the ABCI application, and `State.InitialHeight` to keep track of the initial height throughout the code. Fixes #2543, based on [RFC-002](https://github.com/tendermint/spec/pull/119). Spec changes in https://github.com/tendermint/spec/pull/135.
This commit is contained in:
Erik Grinaker
2020-08-11 19:03:28 +02:00
committed by GitHub
parent 08ffe13295
commit cc247c091b
28 changed files with 555 additions and 317 deletions
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7
types/genesis.go
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@@ -39,6 +39,7 @@ type GenesisValidator struct {
type GenesisDoc struct {
GenesisTime time.Time `json:"genesis_time"`
ChainID string `json:"chain_id"`
InitialHeight int64 `json:"initial_height"`
ConsensusParams *tmproto.ConsensusParams `json:"consensus_params,omitempty"`
Validators []GenesisValidator `json:"validators,omitempty"`
AppHash tmbytes.HexBytes `json:"app_hash"`
@@ -73,6 +74,12 @@ func (genDoc *GenesisDoc) ValidateAndComplete() error {
if len(genDoc.ChainID) > MaxChainIDLen {
return fmt.Errorf("chain_id in genesis doc is too long (max: %d)", MaxChainIDLen)
}
if genDoc.InitialHeight < 0 {
return fmt.Errorf("initial_height cannot be negative (got %v)", genDoc.InitialHeight)
}
if genDoc.InitialHeight == 0 {
genDoc.InitialHeight = 1
}
if genDoc.ConsensusParams == nil {
genDoc.ConsensusParams = DefaultConsensusParams()