working

baseapp/context.go

@@ -1,6 +1,8 @@
 package baseapp
 
-import sdk "github.com/cosmos/cosmos-sdk/types"
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
 
 // NewContext returns a new Context suitable for AnteHandler (and indirectly Handler) processing.
 // NOTE: txBytes may be nil to support TestApp.RunCheckTx
@@ -12,6 +14,7 @@ func (app *BaseApp) NewContext(isCheckTx bool, txBytes []byte) sdk.Context {
 	} else {
 		store = app.msDeliver
 	}
+
 	if store == nil {
 		panic("BaseApp.NewContext() requires BeginBlock(): missing store")
 	}

baseapp/genesis.go

@@ -0,0 +1,71 @@
+package baseapp
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"time"
+
+	crypto "github.com/tendermint/go-crypto"
+	cmn "github.com/tendermint/tmlibs/common"
+)
+
+// TODO this is dup code from tendermint-core to avoid dep issues
+// should probably remove from both SDK / Tendermint and move to tmlibs
+//  ^^^^^^^^^^^^^ This is my preference to avoid DEP hell
+// or sync up versioning and just reference tendermint
+
+// 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      []GenesisValidator `json:"validators"`
+	AppHash         cmn.HexBytes       `json:"app_hash"`
+	AppState        json.RawMessage    `json:"app_state,omitempty"`
+}
+
+//nolint TODO remove
+type ConsensusParams struct {
+	BlockSize      `json:"block_size_params"`
+	TxSize         `json:"tx_size_params"`
+	BlockGossip    `json:"block_gossip_params"`
+	EvidenceParams `json:"evidence_params"`
+}
+type GenesisValidator struct {
+	PubKey crypto.PubKey `json:"pub_key"`
+	Power  int64         `json:"power"`
+	Name   string        `json:"name"`
+}
+type BlockSize struct {
+	MaxBytes int   `json:"max_bytes"` // NOTE: must not be 0 nor greater than 100MB
+	MaxTxs   int   `json:"max_txs"`
+	MaxGas   int64 `json:"max_gas"`
+}
+type TxSize struct {
+	MaxBytes int   `json:"max_bytes"`
+	MaxGas   int64 `json:"max_gas"`
+}
+type BlockGossip struct {
+	BlockPartSizeBytes int `json:"block_part_size_bytes"` // NOTE: must not be 0
+}
+type EvidenceParams struct {
+	MaxAge int64 `json:"max_age"` // only accept new evidence more recent than this
+}
+
+// GenesisDocFromFile reads JSON data from a file and unmarshalls it into a GenesisDoc.
+func GenesisDocFromFile(genDocFile string) (*GenesisDoc, error) {
+	if genDocFile == "" {
+		var g GenesisDoc
+		return &g, nil
+	}
+	jsonBlob, err := ioutil.ReadFile(genDocFile)
+	if err != nil {
+		return nil, err
+	}
+	genDoc := GenesisDoc{}
+	err = json.Unmarshal(jsonBlob, &genDoc)
+	if err != nil {
+		return nil, err
+	}
+	return &genDoc, nil
+}