feat(builder): finish new FundManager setup

Finish setup of new FundManager and provide a migration for previously reserved funds

node/modules/client.go

@@ -1,10 +1,12 @@
 package modules
 
 import (
+	"bytes"
 	"context"
 	"time"
 
 	"github.com/filecoin-project/go-multistore"
+	"github.com/filecoin-project/go-state-types/abi"
 	"golang.org/x/xerrors"
 
 	"go.uber.org/fx"
@@ -26,6 +28,7 @@ import (
 	"github.com/ipfs/go-datastore/namespace"
 	"github.com/libp2p/go-libp2p-core/host"
 
+	"github.com/filecoin-project/lotus/chain/market"
 	"github.com/filecoin-project/lotus/journal"
 	"github.com/filecoin-project/lotus/lib/blockstore"
 	"github.com/filecoin-project/lotus/markets"
@@ -39,6 +42,36 @@ import (
 	"github.com/filecoin-project/lotus/node/repo/retrievalstoremgr"
 )
 
+func HandleMigrateClientFunds(lc fx.Lifecycle, ds dtypes.MetadataDS, wallet full.WalletAPI, fundMgr *market.FundManager) {
+	lc.Append(fx.Hook{
+		OnStart: func(ctx context.Context) error {
+			addr, err := wallet.WalletDefaultAddress(ctx)
+			// nothing to be done if there is no default address
+			if err != nil {
+				return nil
+			}
+			b, err := ds.Get(datastore.NewKey("/marketfunds/client"))
+			if err != nil {
+				if xerrors.Is(err, datastore.ErrNotFound) {
+					return nil
+				}
+				return err
+			}
+
+			var value abi.TokenAmount
+			if err = value.UnmarshalCBOR(bytes.NewReader(b)); err != nil {
+				return err
+			}
+			_, err = fundMgr.Reserve(ctx, addr, addr, value)
+			if err != nil {
+				return err
+			}
+
+			return ds.Delete(datastore.NewKey("/marketfunds/client"))
+		},
+	})
+}
+
 func ClientMultiDatastore(lc fx.Lifecycle, r repo.LockedRepo) (dtypes.ClientMultiDstore, error) {
 	ds, err := r.Datastore("/client")
 	if err != nil {