Optionally allow bitswap for chainstore

node/builder.go

@@ -3,6 +3,7 @@ package node
 import (
 	"context"
 	"errors"
+	"os"
 	"time"
 
 	metricsi "github.com/ipfs/go-metrics-interface"
@@ -138,6 +139,7 @@ const (
 	HeadMetricsKey
 	SettlePaymentChannelsKey
 	RunPeerTaggerKey
+	SetupFallbackBlockstoreKey
 
 	SetApiEndpointKey
 
@@ -521,7 +523,13 @@ func Repo(r repo.Repo) Option {
 			Override(new(repo.LockedRepo), modules.LockedRepo(lr)), // module handles closing
 
 			Override(new(dtypes.MetadataDS), modules.Datastore),
-			Override(new(dtypes.ChainBlockstore), modules.ChainBlockstore),
+			Override(new(dtypes.ChainRawBlockstore), modules.ChainRawBlockstore),
+			Override(new(dtypes.ChainBlockstore), From(new(dtypes.ChainRawBlockstore))),
+
+			If(os.Getenv("LOTUS_ENABLE_CHAINSTORE_FALLBACK") == "1",
+				Override(new(dtypes.ChainBlockstore), modules.FallbackChainBlockstore),
+				Override(SetupFallbackBlockstoreKey, modules.SetupFallbackBlockstore),
+			),
 
 			Override(new(dtypes.ClientImportMgr), modules.ClientImportMgr),
 			Override(new(dtypes.ClientMultiDstore), modules.ClientMultiDatastore),