Fix testground build

build/params_testground.go

@@ -42,9 +42,6 @@ var (
 
 	AllowableClockDriftSecs = uint64(1)
 
-	Finality            = policy.ChainFinality
-	ForkLengthThreshold = Finality
-
 	SlashablePowerDelay        = 20
 	InteractivePoRepConfidence = 6
 
@@ -130,6 +127,9 @@ var (
 	GenesisFile       = ""
 )
 
+const Finality = policy.ChainFinality
+const ForkLengthThreshold = Finality
+
 const BootstrapPeerThreshold = 1
 
 // ChainId defines the chain ID used in the Ethereum JSON-RPC endpoint.

chain/store/snapshot.go

@@ -22,7 +22,7 @@ import (
 	"github.com/filecoin-project/lotus/chain/types"
 )
 
-const TIPSETKEY_BACKFILL_RANGE = 2 * build.Finality
+const TipsetkeyBackfillRange = 2 * build.Finality
 
 func (cs *ChainStore) UnionStore() bstore.Blockstore {
 	return bstore.Union(cs.stateBlockstore, cs.chainBlockstore)
@@ -116,7 +116,7 @@ func (cs *ChainStore) Import(ctx context.Context, r io.Reader) (*types.TipSet, e
 	}
 
 	ts := root
-	for i := 0; i < int(TIPSETKEY_BACKFILL_RANGE); i++ {
+	for i := 0; i < int(TipsetkeyBackfillRange); i++ {
 		err = cs.PersistTipset(ctx, ts)
 		if err != nil {
 			return nil, err