Market migration: Correctly migrate deal states (#108)

* Market migration: Correctly migrate deal states

Co-authored-by: zenground0 <[email protected]>
Co-authored-by: ZenGround0 <[email protected]>

Author: arajasek

builtin/v9/migration/market.go

@@ -9,6 +9,7 @@ import (
 	adt8 "github.com/filecoin-project/go-state-types/builtin/v8/util/adt"
 	market9 "github.com/filecoin-project/go-state-types/builtin/v9/market"
 	adt9 "github.com/filecoin-project/go-state-types/builtin/v9/util/adt"
+	"github.com/filecoin-project/go-state-types/builtin/v9/verifreg"
 	"github.com/ipfs/go-cid"
 	typegen "github.com/whyrusleeping/cbor-gen"
 	"golang.org/x/xerrors"
@@ -32,9 +33,42 @@ func migrateMarket(ctx context.Context, adtStore adt8.Store, dealAllocationTuple
 		return cid.Undef, xerrors.Errorf("failed to flush pending deal allocations map: %w", err)
 	}
 
+	dealStates8, err := adt9.AsArray(adtStore, marketStateV8.States, market8.StatesAmtBitwidth)
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("failed to load v8 states array: %w", err)
+	}
+
+	emptyStatesArrayCid, err := adt9.StoreEmptyArray(adtStore, market9.StatesAmtBitwidth)
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("failed to create empty states array: %w", err)
+	}
+
+	dealStates9, err := adt9.AsArray(adtStore, emptyStatesArrayCid, market9.StatesAmtBitwidth)
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("failed to load v9 states array: %w", err)
+	}
+
+	var dealState8 market8.DealState
+	err = dealStates8.ForEach(&dealState8, func(i int64) error {
+		return dealStates9.Set(uint64(i), &market9.DealState{
+			SectorStartEpoch: dealState8.SectorStartEpoch,
+			LastUpdatedEpoch: dealState8.LastUpdatedEpoch,
+			SlashEpoch:       dealState8.SlashEpoch,
+			VerifiedClaim:    verifreg.NoAllocationID,
+		})
+	})
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("failed to iterate over v8 states: %w", err)
+	}
+
+	dealStates9Root, err := dealStates9.Root()
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("failed to flush dealStates 9: %w", err)
+	}
+
 	marketStateV9 := market9.State{
 		Proposals:                     marketStateV8.Proposals,
-		States:                        marketStateV8.States,
+		States:                        dealStates9Root,
 		PendingProposals:              marketStateV8.PendingProposals,
 		EscrowTable:                   marketStateV8.EscrowTable,
 		LockedTable:                   marketStateV8.LockedTable,