Add lotus-shed cmd to get total active deal storage

chain/actors/builtin/market/market.go

@@ -240,6 +240,10 @@ func GetDealFees(deal market8.DealProposal, height abi.ChainEpoch) (abi.TokenAmo
 	return ef, big.Sub(tf, ef)
 }
 
+func IsDealActive(state market8.DealState) bool {
+	return state.SectorStartEpoch > -1 && state.SlashEpoch == -1
+}
+
 func labelFromGoString(s string) (market8.DealLabel, error) {
 	if utf8.ValidString(s) {
 		return market8.NewLabelFromString(s)

cmd/lotus-shed/market.go

@@ -32,6 +32,7 @@ var marketCmd = &cli.Command{
 		marketDealFeesCmd,
 		marketExportDatastoreCmd,
 		marketImportDatastoreCmd,
+		marketDealsTotalStorageCmd,
 	},
 }
 
@@ -283,6 +284,48 @@ var marketImportDatastoreCmd = &cli.Command{
 	},
 }
 
+var marketDealsTotalStorageCmd = &cli.Command{
+	Name:  "get-deals-total-storage",
+	Usage: "View the total storage available in all active market deals",
+	Flags: []cli.Flag{},
+	Action: func(cctx *cli.Context) error {
+		api, closer, err := lcli.GetFullNodeAPI(cctx)
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		ctx := lcli.ReqContext(cctx)
+
+		ts, err := lcli.LoadTipSet(ctx, cctx, api)
+		if err != nil {
+			return err
+		}
+
+		deals, err := api.StateMarketDeals(ctx, ts.Key())
+		if err != nil {
+			return err
+		}
+
+		total := big.Zero()
+		count := 0
+
+		for _, deal := range deals {
+			if market.IsDealActive(deal.State) {
+				dealStorage := big.NewIntUnsigned(uint64(deal.Proposal.PieceSize))
+				total = big.Add(total, dealStorage)
+				count++
+			}
+
+		}
+
+		fmt.Println("Total deals: ", count)
+		fmt.Println("Total storage: ", total)
+
+		return nil
+	},
+}
+
 func openLockedRepo(path string) (repo.LockedRepo, error) {
 	// Open the repo at the repo path
 	rpo, err := repo.NewFS(path)