prysm-pulse/beacon-chain/sync/checkpoint/file.go
Raul Jordan d077483577
Add V3 Suffix to All Prysm Packages (#11083)
* v3 import renamings

* tidy

* fmt

* rev

* Update beacon-chain/core/epoch/precompute/reward_penalty_test.go

* Update beacon-chain/core/helpers/validators_test.go

* Update beacon-chain/db/alias.go

* Update beacon-chain/db/alias.go

* Update beacon-chain/db/alias.go

* Update beacon-chain/db/iface/BUILD.bazel

* Update beacon-chain/db/kv/kv.go

* Update beacon-chain/db/kv/state.go

* Update beacon-chain/rpc/prysm/v1alpha1/validator/attester_test.go

* Update beacon-chain/rpc/prysm/v1alpha1/validator/attester_test.go

* Update beacon-chain/sync/initial-sync/service.go

* fix deps

* fix bad replacements

* fix bad replacements

* change back

* gohashtree version

* fix deps

Co-authored-by: Nishant Das <nishdas93@gmail.com>
Co-authored-by: Potuz <potuz@prysmaticlabs.com>
2022-08-16 12:20:13 +00:00

78 lines
2.7 KiB
Go

package checkpoint
import (
"context"
"fmt"
"os"
"github.com/pkg/errors"
"github.com/prysmaticlabs/prysm/v3/beacon-chain/db"
"github.com/prysmaticlabs/prysm/v3/config/params"
"github.com/prysmaticlabs/prysm/v3/io/file"
log "github.com/sirupsen/logrus"
)
// Initializer describes a type that is able to obtain the checkpoint sync data (BeaconState and SignedBeaconBlock)
// in some way and perform database setup to prepare the beacon node for syncing from the given checkpoint.
// See FileInitializer and APIInitializer.
type Initializer interface {
Initialize(ctx context.Context, d db.Database) error
}
// NewFileInitializer validates the given path information and creates an Initializer which will
// use the provided state and block files to prepare the node for checkpoint sync.
func NewFileInitializer(blockPath string, statePath string) (*FileInitializer, error) {
var err error
if err = existsAndIsFile(blockPath); err != nil {
return nil, err
}
if err = existsAndIsFile(statePath); err != nil {
return nil, err
}
// stat just to make sure it actually exists and is a file
return &FileInitializer{blockPath: blockPath, statePath: statePath}, nil
}
// FileInitializer initializes a beacon-node database to use checkpoint sync,
// using ssz-encoded block and state data stored in files on the local filesystem.
type FileInitializer struct {
blockPath string
statePath string
}
// Initialize is called in the BeaconNode db startup code if an Initializer is present.
// Initialize does what is needed to prepare the beacon node database for syncing from the weak subjectivity checkpoint.
func (fi *FileInitializer) Initialize(ctx context.Context, d db.Database) error {
origin, err := d.OriginCheckpointBlockRoot(ctx)
if err == nil && origin != params.BeaconConfig().ZeroHash {
log.Warnf("origin checkpoint root %#x found in db, ignoring checkpoint sync flags", origin)
return nil
} else {
if !errors.Is(err, db.ErrNotFound) {
return errors.Wrap(err, "error while checking database for origin root")
}
}
serBlock, err := file.ReadFileAsBytes(fi.blockPath)
if err != nil {
return errors.Wrapf(err, "error reading block file %s for checkpoint sync init", fi.blockPath)
}
serState, err := file.ReadFileAsBytes(fi.statePath)
if err != nil {
return errors.Wrapf(err, "error reading state file %s for checkpoint sync init", fi.blockPath)
}
return d.SaveOrigin(ctx, serState, serBlock)
}
var _ Initializer = &FileInitializer{}
func existsAndIsFile(path string) error {
info, err := os.Stat(path)
if err != nil {
return errors.Wrapf(err, "error checking existence of ssz-encoded file %s for checkpoint sync init", path)
}
if info.IsDir() {
return fmt.Errorf("%s is a directory, please specify full path to file", path)
}
return nil
}