lotus/cmd/lotus-storage-miner/init.go

package main

import (
	"golang.org/x/xerrors"
	"gopkg.in/urfave/cli.v2"

	"github.com/filecoin-project/go-lotus/build"
	lcli "github.com/filecoin-project/go-lotus/cli"
	"github.com/filecoin-project/go-lotus/node/repo"
)

var initCmd = &cli.Command{
	Name:  "init",
	Usage: "Initialize a lotus storage miner repo",
	Action: func(cctx *cli.Context) error {
		log.Info("Initializing lotus storage miner")
		log.Info("Checking if repo exists")

		r, err := repo.NewFS(cctx.String("storagerepo"))
		if err != nil {
			return err
		}

		if r.Exists() {
			return xerrors.Errorf("repo at '%s' is already initialized", cctx.String("storagerepo"))
		}

		log.Info("Trying to connect to full node RPC")

		api, err := lcli.GetAPI(cctx) // TODO: consider storing full node address in config
		if err != nil {
			return err
		}
		ctx := lcli.ReqContext(cctx)

		log.Info("Checking full node version")

		v, err := api.Version(ctx)
		if err != nil {
			return err
		}

		if v.APIVersion & build.MinorMask != build.APIVersion & build.MinorMask {
			return xerrors.Errorf("Remote API version didn't match (local %x, remote %x)", build.APIVersion, v.APIVersion)
		}

		log.Info("Initializing repo")

		if err := r.Init(); err != nil {
			return err
		}

		// create actors and stuff

		log.Info("Storage miner successfully created, you can now start it with 'lotus-storage-miner run'")

		return nil
	},
}