43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
package history
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import (
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log "github.com/sirupsen/logrus"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/datastore"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
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)
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func PopulateMissingHeaders(blockchain core.BlockChain, headerRepository datastore.HeaderRepository, startingBlockNumber int64) (int, error) {
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lastBlock := blockchain.LastBlock().Int64()
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headerAlreadyExists, err := headerRepository.HeaderExists(lastBlock)
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if err != nil {
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return 0, err
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} else if headerAlreadyExists {
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return 0, nil
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}
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blockNumbers := headerRepository.MissingBlockNumbers(startingBlockNumber, lastBlock, blockchain.Node().ID)
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log.Printf("Backfilling %d blocks\n\n", len(blockNumbers))
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_, err = RetrieveAndUpdateHeaders(blockchain, headerRepository, blockNumbers)
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if err != nil {
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return 0, err
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}
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return len(blockNumbers), nil
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}
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func RetrieveAndUpdateHeaders(chain core.BlockChain, headerRepository datastore.HeaderRepository, blockNumbers []int64) (int, error) {
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headers, err := chain.GetHeaderByNumbers(blockNumbers)
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for _, header := range headers {
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_, err = headerRepository.CreateOrUpdateHeader(header)
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if err != nil {
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if err == repositories.ErrValidHeaderExists {
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continue
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}
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return 0, err
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}
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}
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return len(blockNumbers), nil
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}
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