lotus/cmd/lotus/backup.go
ZenGround0 43da108466
feat:config:force existing users to opt into new defaults (#10488)
* Config default does not comment out EnableSplitstore

* Loadability check

* Remove test used for debugging

* regexp for properly safe check that config is set

* regexp for safely matching the EnableSpitstore field in the config

* Add instructions for undeleting config and remind users to set splitstore false for full archive

* UpdateConfig small docs and functional opts

* make gen

* Lint

* Fix

* nil pointer check on validate

* Unit testing of EnableSplitstore cases

* Address Review

---------

Co-authored-by: zenground0 <ZenGround0@users.noreply.github.com>
2023-03-20 12:19:14 -04:00

122 lines
2.8 KiB
Go

package main
import (
"os"
dstore "github.com/ipfs/go-datastore"
"github.com/mitchellh/go-homedir"
"github.com/urfave/cli/v2"
"golang.org/x/xerrors"
"gopkg.in/cheggaaa/pb.v1"
"github.com/filecoin-project/go-jsonrpc"
"github.com/filecoin-project/lotus/chain/store"
lcli "github.com/filecoin-project/lotus/cli"
"github.com/filecoin-project/lotus/lib/backupds"
"github.com/filecoin-project/lotus/node/config"
"github.com/filecoin-project/lotus/node/repo"
)
var backupCmd = lcli.BackupCmd("repo", repo.FullNode, func(cctx *cli.Context) (lcli.BackupAPI, jsonrpc.ClientCloser, error) {
return lcli.GetFullNodeAPI(cctx)
})
func restore(cctx *cli.Context, r repo.Repo) error {
bf, err := homedir.Expand(cctx.Path("restore"))
if err != nil {
return xerrors.Errorf("expand backup file path: %w", err)
}
st, err := os.Stat(bf)
if err != nil {
return xerrors.Errorf("stat backup file (%s): %w", bf, err)
}
f, err := os.Open(bf)
if err != nil {
return xerrors.Errorf("opening backup file: %w", err)
}
defer f.Close() // nolint:errcheck
lr, err := r.Lock(repo.FullNode)
if err != nil {
return err
}
defer lr.Close() // nolint:errcheck
if cctx.IsSet("restore-config") {
log.Info("Restoring config")
cf, err := homedir.Expand(cctx.String("restore-config"))
if err != nil {
return xerrors.Errorf("expanding config path: %w", err)
}
_, err = os.Stat(cf)
if err != nil {
return xerrors.Errorf("stat config file (%s): %w", cf, err)
}
var cerr error
err = lr.SetConfig(func(raw interface{}) {
rcfg, ok := raw.(*config.FullNode)
if !ok {
cerr = xerrors.New("expected miner config")
return
}
ff, err := config.FromFile(cf, config.SetDefault(func() (interface{}, error) { return rcfg, nil }))
if err != nil {
cerr = xerrors.Errorf("loading config: %w", err)
return
}
*rcfg = *ff.(*config.FullNode)
})
if cerr != nil {
return cerr
}
if err != nil {
return xerrors.Errorf("setting config: %w", err)
}
} else {
log.Warn("--restore-config NOT SET, WILL USE DEFAULT VALUES")
}
log.Info("Restoring metadata backup")
mds, err := lr.Datastore(cctx.Context, "/metadata")
if err != nil {
return err
}
bar := pb.New64(st.Size())
br := bar.NewProxyReader(f)
bar.ShowTimeLeft = true
bar.ShowPercent = true
bar.ShowSpeed = true
bar.Units = pb.U_BYTES
bar.Start()
err = backupds.RestoreInto(br, mds)
bar.Finish()
if err != nil {
return xerrors.Errorf("restoring metadata: %w", err)
}
log.Info("Resetting chainstore metadata")
chainHead := dstore.NewKey("head")
if err := mds.Delete(cctx.Context, chainHead); err != nil {
return xerrors.Errorf("clearing chain head: %w", err)
}
if err := store.FlushValidationCache(cctx.Context, mds); err != nil {
return xerrors.Errorf("clearing chain validation cache: %w", err)
}
return nil
}