package main import ( "fmt" "github.com/urfave/cli/v2" "github.com/filecoin-project/go-state-types/big" "github.com/filecoin-project/lotus/chain/actors/builtin" "github.com/filecoin-project/lotus/chain/types" ) var infoCapacityGrowthSimCommand = &cli.Command{ Name: "capacity-growth", Description: "List daily capacity growth over the course of the simulation starting at the end.", Action: func(cctx *cli.Context) (err error) { node, err := open(cctx) if err != nil { return err } defer func() { if cerr := node.Close(); err == nil { err = cerr } }() sim, err := node.LoadSim(cctx.Context, cctx.String("simulation")) if err != nil { return err } firstEpoch := sim.GetStart().Height() ts := sim.GetHead() lastPower, err := getTotalPower(cctx.Context, sim.StateManager, ts) if err != nil { return err } lastHeight := ts.Height() for ts.Height() > firstEpoch && cctx.Err() == nil { ts, err = sim.Node.Chainstore.LoadTipSet(ts.Parents()) if err != nil { return err } newEpoch := ts.Height() if newEpoch != firstEpoch && newEpoch+builtin.EpochsInDay > lastHeight { continue } newPower, err := getTotalPower(cctx.Context, sim.StateManager, ts) if err != nil { return err } growthRate := big.Div( big.Mul(big.Sub(lastPower.RawBytePower, newPower.RawBytePower), big.NewInt(builtin.EpochsInDay)), big.NewInt(int64(lastHeight-newEpoch)), ) lastPower = newPower lastHeight = newEpoch fmt.Fprintf(cctx.App.Writer, "%s/day\n", types.SizeStr(growthRate)) } return cctx.Err() }, }