lotus/cmd/lotus-sim/run.go
Steven Allen be9e30e39d fix(lotus-sim): rename step to run
And make it run forever by default.
2021-06-18 15:44:34 -07:00

47 lines
1006 B
Go

package main
import (
"fmt"
"github.com/urfave/cli/v2"
)
var runSimCommand = &cli.Command{
Name: "run",
Description: "Run the simulation.",
Flags: []cli.Flag{
&cli.IntFlag{
Name: "epochs",
Usage: "Advance the given number of epochs then stop.",
},
},
Action: func(cctx *cli.Context) error {
node, err := open(cctx)
if err != nil {
return err
}
defer node.Close()
sim, err := node.LoadSim(cctx.Context, cctx.String("simulation"))
if err != nil {
return err
}
fmt.Fprintln(cctx.App.Writer, "loading simulation")
err = sim.Load(cctx.Context)
if err != nil {
return err
}
fmt.Fprintln(cctx.App.Writer, "running simulation")
targetEpochs := cctx.Int("epochs")
for i := 0; targetEpochs == 0 || i < targetEpochs; i++ {
ts, err := sim.Step(cctx.Context)
if err != nil {
return err
}
fmt.Fprintf(cctx.App.Writer, "advanced to %d %s\n", ts.Height(), ts.Key())
}
fmt.Fprintln(cctx.App.Writer, "simulation done")
return err
},
}