117 lines
3.6 KiB
Go
117 lines
3.6 KiB
Go
// VulcanizeDB
|
|
// Copyright © 2018 Vulcanize
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"os"
|
|
"time"
|
|
|
|
log "github.com/sirupsen/logrus"
|
|
"github.com/spf13/cobra"
|
|
|
|
"github.com/vulcanize/vulcanizedb/pkg/core"
|
|
"github.com/vulcanize/vulcanizedb/pkg/datastore"
|
|
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
|
|
"github.com/vulcanize/vulcanizedb/pkg/geth"
|
|
"github.com/vulcanize/vulcanizedb/pkg/history"
|
|
"github.com/vulcanize/vulcanizedb/utils"
|
|
)
|
|
|
|
// lightSyncCmd represents the lightSync command
|
|
var lightSyncCmd = &cobra.Command{
|
|
Use: "lightSync",
|
|
Short: "Syncs VulcanizeDB with local ethereum node's block headers",
|
|
Long: `Syncs VulcanizeDB with local ethereum node. Populates
|
|
Postgres with block headers.
|
|
<<<<<<< HEAD
|
|
|
|
./vulcanizedb lightSync --starting-block-number 0 --config public.toml
|
|
|
|
Expects ethereum node to be running and requires a .toml config:
|
|
|
|
=======
|
|
./vulcanizedb lightSync --starting-block-number 0 --config public.toml
|
|
Expects ethereum node to be running and requires a .toml config:
|
|
>>>>>>> origin/master
|
|
[database]
|
|
name = "vulcanize_public"
|
|
hostname = "localhost"
|
|
port = 5432
|
|
<<<<<<< HEAD
|
|
|
|
=======
|
|
>>>>>>> origin/master
|
|
[client]
|
|
ipcPath = "/Users/user/Library/Ethereum/geth.ipc"
|
|
`,
|
|
Run: func(cmd *cobra.Command, args []string) {
|
|
lightSync()
|
|
},
|
|
}
|
|
|
|
func init() {
|
|
rootCmd.AddCommand(lightSyncCmd)
|
|
lightSyncCmd.Flags().Int64VarP(&startingBlockNumber, "starting-block-number", "s", 0, "Block number to start syncing from")
|
|
}
|
|
|
|
func backFillAllHeaders(blockchain core.BlockChain, headerRepository datastore.HeaderRepository, missingBlocksPopulated chan int, startingBlockNumber int64) {
|
|
populated, err := history.PopulateMissingHeaders(blockchain, headerRepository, startingBlockNumber)
|
|
if err != nil {
|
|
log.Fatal("Error populating headers: ", err)
|
|
}
|
|
missingBlocksPopulated <- populated
|
|
}
|
|
|
|
func lightSync() {
|
|
ticker := time.NewTicker(pollingInterval)
|
|
defer ticker.Stop()
|
|
blockChain := getBlockChain()
|
|
validateArgs(blockChain)
|
|
db := utils.LoadPostgres(databaseConfig, blockChain.Node())
|
|
|
|
headerRepository := repositories.NewHeaderRepository(&db)
|
|
validator := history.NewHeaderValidator(blockChain, headerRepository, validationWindow)
|
|
missingBlocksPopulated := make(chan int)
|
|
go backFillAllHeaders(blockChain, headerRepository, missingBlocksPopulated, startingBlockNumber)
|
|
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
window, err := validator.ValidateHeaders()
|
|
if err != nil {
|
|
log.Error("ValidateHeaders failed in lightSync: ", err)
|
|
}
|
|
window.Log(os.Stdout)
|
|
case n := <-missingBlocksPopulated:
|
|
if n == 0 {
|
|
time.Sleep(3 * time.Second)
|
|
}
|
|
go backFillAllHeaders(blockChain, headerRepository, missingBlocksPopulated, startingBlockNumber)
|
|
}
|
|
}
|
|
}
|
|
|
|
func validateArgs(blockChain *geth.BlockChain) {
|
|
lastBlock := blockChain.LastBlock().Int64()
|
|
if lastBlock == 0 {
|
|
log.Fatal("geth initial: state sync not finished")
|
|
}
|
|
if startingBlockNumber > lastBlock {
|
|
log.Fatal("starting block number > current block number")
|
|
}
|
|
}
|