ipld-eth-server/pkg/history/populate_blocks.go
Edvard Hübinette a3e8633aff VDB-104 improve lightsync ui (#125)
* Return PopulateMissingHeaders early if the sync is at the head of the chain

* Squelch logging if no blocks to sync

* Fix broken test

* Refactor repository tests
2018-12-14 12:11:48 +01:00

35 lines
1.1 KiB
Go

package history
import (
log "github.com/sirupsen/logrus"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore"
)
func PopulateMissingBlocks(blockchain core.BlockChain, blockRepository datastore.BlockRepository, startingBlockNumber int64) int {
lastBlock := blockchain.LastBlock().Int64()
blockRange := blockRepository.MissingBlockNumbers(startingBlockNumber, lastBlock, blockchain.Node().ID)
if len(blockRange) == 0 {
return 0
}
log.Printf("Backfilling %d blocks\n\n", len(blockRange))
RetrieveAndUpdateBlocks(blockchain, blockRepository, blockRange)
return len(blockRange)
}
func RetrieveAndUpdateBlocks(blockchain core.BlockChain, blockRepository datastore.BlockRepository, blockNumbers []int64) int {
for _, blockNumber := range blockNumbers {
block, err := blockchain.GetBlockByNumber(blockNumber)
if err != nil {
log.Printf("failed to retrieve block number: %d\n", blockNumber)
return 0
}
// TODO: handle possible error here
blockRepository.CreateOrUpdateBlock(block)
}
return len(blockNumbers)
}