42 lines
1.3 KiB
Go
42 lines
1.3 KiB
Go
package history
|
|
|
|
import (
|
|
"log"
|
|
|
|
"github.com/vulcanize/vulcanizedb/pkg/core"
|
|
"github.com/vulcanize/vulcanizedb/pkg/datastore"
|
|
"github.com/vulcanize/vulcanizedb/pkg/transformers"
|
|
)
|
|
|
|
func PopulateMissingHeaders(blockchain core.BlockChain, headerRepository datastore.HeaderRepository, startingBlockNumber int64, transformers []transformers.Transformer) (int, error) {
|
|
lastBlock := blockchain.LastBlock().Int64()
|
|
blockRange := headerRepository.MissingBlockNumbers(startingBlockNumber, lastBlock, blockchain.Node().ID)
|
|
log.SetPrefix("")
|
|
log.Printf("Backfilling %d blocks\n\n", len(blockRange))
|
|
_, err := RetrieveAndUpdateHeaders(blockchain, headerRepository, blockRange, transformers)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return len(blockRange), nil
|
|
}
|
|
|
|
func RetrieveAndUpdateHeaders(chain core.BlockChain, headerRepository datastore.HeaderRepository, blockNumbers []int64, transformers []transformers.Transformer) (int, error) {
|
|
for _, blockNumber := range blockNumbers {
|
|
header, err := chain.GetHeaderByNumber(blockNumber)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
id, err := headerRepository.CreateOrUpdateHeader(header)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
for _, transformer := range transformers {
|
|
err := transformer.Execute(header, id)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
}
|
|
}
|
|
return len(blockNumbers), nil
|
|
}
|