Sync only missing blocks on cold import

= Add eth_node_fingerprint to block that can be imitated by both hot and cold imports
- Only sync missing blocks (blocks that are missing or don't share a fingerprint) on cold import
- Set block is_final status after import

README.md

@@ -58,6 +58,10 @@ Sync VulcanizeDB from the LevelDB underlying a Geth node.
 1. Assure node is not running, and that it has synced to the desired block height.
 1. Start vulcanize_db
    - `./vulcanizedb coldImport --config <config.toml> --starting-block-number <block-number> --ending-block-number <block-number>`
+1. Optional flags:
+    - `--starting-block-number`/`-s`: block number to start syncing from
+    - `--ending-block-number`/`-e`: block number to sync to
+    - `--all`/`-a`: sync all missing blocks
 
 ## Running the Tests
 

cmd/coldImport.go

@@ -17,13 +17,13 @@ package cmd
 import (
 	"log"
 
-	"github.com/ethereum/go-ethereum/common"
 	"github.com/spf13/cobra"
 
-	"github.com/vulcanize/vulcanizedb/pkg/core"
+	"github.com/vulcanize/vulcanizedb/pkg/crypto"
 	"github.com/vulcanize/vulcanizedb/pkg/datastore/ethereum"
 	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
-	"github.com/vulcanize/vulcanizedb/pkg/geth"
+	"github.com/vulcanize/vulcanizedb/pkg/fs"
+	"github.com/vulcanize/vulcanizedb/pkg/geth/cold_import"
 	"github.com/vulcanize/vulcanizedb/pkg/geth/converters/cold_db"
 	vulcCommon "github.com/vulcanize/vulcanizedb/pkg/geth/converters/common"
 	"github.com/vulcanize/vulcanizedb/utils"
@@ -44,8 +44,9 @@ Geth must be synced over all of the desired blocks and must not be running in or
 
 func init() {
 	rootCmd.AddCommand(coldImportCmd)
-	coldImportCmd.Flags().Int64VarP(&startingBlockNumber, "starting-block-number", "s", 0, "Number for first block to cold import")
-	coldImportCmd.Flags().Int64VarP(&endingBlockNumber, "ending-block-number", "e", 5500000, "Number for last block to cold import")
+	coldImportCmd.Flags().Int64VarP(&startingBlockNumber, "starting-block-number", "s", 0, "Number for first block to cold import.")
+	coldImportCmd.Flags().Int64VarP(&endingBlockNumber, "ending-block-number", "e", 5500000, "Number for last block to cold import.")
+	coldImportCmd.Flags().BoolVarP(&syncAll, "all", "a", false, "Option to sync all missing blocks.")
 }
 
 func coldImport() {
@@ -55,34 +56,38 @@ func coldImport() {
 	if err != nil {
 		log.Fatal("Error connecting to ethereum db: ", err)
 	}
-
+	mostRecentBlockNumberInDb := ethDB.GetHeadBlockNumber()
+	if syncAll {
+		startingBlockNumber = 0
+		endingBlockNumber = mostRecentBlockNumberInDb
+	}
 	if endingBlockNumber < startingBlockNumber {
 		log.Fatal("Ending block number must be greater than starting block number for cold import.")
 	}
-	mostRecentBlockNumberInDb := ethDB.GetHeadBlockNumber()
 	if endingBlockNumber > mostRecentBlockNumberInDb {
 		log.Fatal("Ending block number is greater than most recent block in db: ", mostRecentBlockNumberInDb)
 	}
 
 	// init pg db
-	genesisBlockHash := common.BytesToHash(ethDB.GetBlockHash(0)).String()
-	coldNode := core.Node{
-		GenesisBlock: genesisBlockHash,
-		NetworkID:    1,
-		ID:           "LevelDbColdImport",
-		ClientName:   "LevelDbColdImport",
+	genesisBlock := ethDB.GetBlockHash(0)
+	reader := fs.FsReader{}
+	parser := crypto.EthPublicKeyParser{}
+	nodeBuilder := cold_import.NewColdImportNodeBuilder(reader, parser)
+	coldNode, err := nodeBuilder.GetNode(genesisBlock, levelDbPath)
+	if err != nil {
+		log.Fatal("Error getting node: ", err)
 	}
 	pgDB := utils.LoadPostgres(databaseConfig, coldNode)
 
 	// init cold importer deps
-	blockRepository := repositories.BlockRepository{DB: &pgDB}
+	blockRepository := repositories.NewBlockRepository(&pgDB)
 	receiptRepository := repositories.ReceiptRepository{DB: &pgDB}
 	transactionconverter := cold_db.NewColdDbTransactionConverter()
 	blockConverter := vulcCommon.NewBlockConverter(transactionconverter)
 
 	// init and execute cold importer
-	coldImporter := geth.NewColdImporter(ethDB, blockRepository, receiptRepository, blockConverter)
-	err = coldImporter.Execute(startingBlockNumber, endingBlockNumber)
+	coldImporter := cold_import.NewColdImporter(ethDB, blockRepository, receiptRepository, blockConverter)
+	err = coldImporter.Execute(startingBlockNumber, endingBlockNumber, coldNode.ID)
 	if err != nil {
 		log.Fatal("Error executing cold import: ", err)
 	}

cmd/root.go

@@ -16,6 +16,7 @@ var (
 	ipc                 string
 	levelDbPath         string
 	startingBlockNumber int64
+	syncAll             bool
 	endingBlockNumber   int64
 )
 

cmd/sync.go

@@ -68,7 +68,7 @@ func sync() {
 	}
 
 	db := utils.LoadPostgres(databaseConfig, blockchain.Node())
-	blockRepository := repositories.BlockRepository{DB: &db}
+	blockRepository := repositories.NewBlockRepository(&db)
 	validator := history.NewBlockValidator(blockchain, blockRepository, 15)
 	missingBlocksPopulated := make(chan int)
 	go backFillAllBlocks(blockchain, blockRepository, missingBlocksPopulated, startingBlockNumber)

db/migrations/1525464568_add_eth_node_fingerprint_to_blocks.down.sql

@@ -0,0 +1,2 @@
+ALTER TABLE blocks
+  DROP COLUMN eth_node_fingerprint;

db/migrations/1525464568_add_eth_node_fingerprint_to_blocks.up.sql

@@ -0,0 +1,14 @@
+BEGIN;
+
+ALTER TABLE blocks
+  ADD COLUMN eth_node_fingerprint VARCHAR(128);
+
+UPDATE blocks
+  SET eth_node_fingerprint = (
+    SELECT eth_node_id FROM eth_nodes WHERE eth_nodes.id = blocks.eth_node_id
+  );
+
+ALTER TABLE blocks
+  ALTER COLUMN eth_node_fingerprint SET NOT NULL;
+
+COMMIT;

db/schema.sql

@@ -83,7 +83,8 @@ CREATE TABLE public.blocks (
     miner character varying(42),
     extra_data character varying,
     reward double precision,
-    uncles_reward double precision
+    uncles_reward double precision,
+    eth_node_fingerprint character varying(128) NOT NULL
 );
 
 

pkg/crypto/crypto_suite_test.go

@@ -0,0 +1,13 @@
+package crypto_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestCrypto(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Crypto Suite")
+}

pkg/crypto/parser.go

@@ -0,0 +1,21 @@
+package crypto
+
+import (
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/p2p/discover"
+)
+
+type PublicKeyParser interface {
+	ParsePublicKey(privateKey string) (string, error)
+}
+
+type EthPublicKeyParser struct{}
+
+func (EthPublicKeyParser) ParsePublicKey(privateKey string) (string, error) {
+	np, err := crypto.HexToECDSA(privateKey)
+	if err != nil {
+		return "", err
+	}
+	pubKey := discover.PubkeyID(&np.PublicKey)
+	return pubKey.String(), nil
+}

pkg/crypto/parser_test.go

@@ -0,0 +1,19 @@
+package crypto_test
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	"github.com/vulcanize/vulcanizedb/pkg/crypto"
+)
+
+var _ = Describe("Public key parser", func() {
+	It("parses public key from private key", func() {
+		privKey := "0000000000000000000000000000000000000000000000000000000000000001"
+		parser := crypto.EthPublicKeyParser{}
+
+		pubKey, err := parser.ParsePublicKey(privKey)
+
+		Expect(err).NotTo(HaveOccurred())
+		Expect(pubKey).To(Equal("79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8"))
+	})
+})

pkg/datastore/inmemory/block_repository.go

@@ -26,7 +26,7 @@ func (blockRepository *BlockRepository) GetBlock(blockNumber int64) (core.Block,
 	return core.Block{}, datastore.ErrBlockDoesNotExist(blockNumber)
 }
 
-func (blockRepository *BlockRepository) MissingBlockNumbers(startingBlockNumber int64, endingBlockNumber int64) []int64 {
+func (blockRepository *BlockRepository) MissingBlockNumbers(startingBlockNumber int64, endingBlockNumber int64, nodeId string) []int64 {
 	missingNumbers := []int64{}
 	for blockNumber := int64(startingBlockNumber); blockNumber <= endingBlockNumber; blockNumber++ {
 		if _, ok := blockRepository.blocks[blockNumber]; !ok {

pkg/datastore/postgres/postgres_test.go

@@ -76,7 +76,7 @@ var _ = Describe("Postgres DB", func() {
 		}
 		node := core.Node{GenesisBlock: "GENESIS", NetworkID: 1, ID: "x123", ClientName: "geth"}
 		db := test_config.NewTestDB(node)
-		blocksRepository := repositories.BlockRepository{DB: db}
+		blocksRepository := repositories.NewBlockRepository(db)
 
 		_, err1 := blocksRepository.CreateOrUpdateBlock(badBlock)
 
@@ -131,7 +131,7 @@ var _ = Describe("Postgres DB", func() {
 		}
 		node := core.Node{GenesisBlock: "GENESIS", NetworkID: 1, ID: "x123", ClientName: "geth"}
 		db, _ := postgres.NewDB(test_config.DBConfig, node)
-		blockRepository := repositories.BlockRepository{DB: db}
+		blockRepository := repositories.NewBlockRepository(db)
 
 		_, err1 := blockRepository.CreateOrUpdateBlock(block)
 

pkg/datastore/postgres/repositories/block_repository.go

@@ -20,12 +20,16 @@ const (
 var ErrBlockExists = errors.New("Won't add block that already exists.")
 
 type BlockRepository struct {
-	*postgres.DB
+	database *postgres.DB
+}
+
+func NewBlockRepository(database *postgres.DB) *BlockRepository {
+	return &BlockRepository{database: database}
 }
 
 func (blockRepository BlockRepository) SetBlocksStatus(chainHead int64) {
 	cutoff := chainHead - blocksFromHeadBeforeFinal
-	blockRepository.DB.Exec(`
+	blockRepository.database.Exec(`
                   UPDATE blocks SET is_final = TRUE
                   WHERE is_final = FALSE AND number < $1`,
 		cutoff)
@@ -48,22 +52,22 @@ func (blockRepository BlockRepository) CreateOrUpdateBlock(block core.Block) (in
 	return blockId, ErrBlockExists
 }
 
-func (blockRepository BlockRepository) MissingBlockNumbers(startingBlockNumber int64, highestBlockNumber int64) []int64 {
+func (blockRepository BlockRepository) MissingBlockNumbers(startingBlockNumber int64, highestBlockNumber int64, nodeId string) []int64 {
 	numbers := make([]int64, 0)
-	blockRepository.DB.Select(&numbers,
+	blockRepository.database.Select(&numbers,
 		`SELECT all_block_numbers
             FROM (
                 SELECT generate_series($1::INT, $2::INT) AS all_block_numbers) series
                 LEFT JOIN blocks
                     ON number = all_block_numbers
-            WHERE number ISNULL`,
+            WHERE number ISNULL OR eth_node_fingerprint != $3`,
 		startingBlockNumber,
-		highestBlockNumber)
+		highestBlockNumber, nodeId)
 	return numbers
 }
 
 func (blockRepository BlockRepository) GetBlock(blockNumber int64) (core.Block, error) {
-	blockRows := blockRepository.DB.QueryRowx(
+	blockRows := blockRepository.database.QueryRowx(
 		`SELECT id,
                        number,
                        gaslimit,
@@ -81,7 +85,7 @@ func (blockRepository BlockRepository) GetBlock(blockNumber int64) (core.Block,
                        reward,
                        uncles_reward
                FROM blocks
-               WHERE eth_node_id = $1 AND number = $2`, blockRepository.NodeID, blockNumber)
+               WHERE eth_node_id = $1 AND number = $2`, blockRepository.database.NodeID, blockNumber)
 	savedBlock, err := blockRepository.loadBlock(blockRows)
 	if err != nil {
 		switch err {
@@ -96,17 +100,17 @@ func (blockRepository BlockRepository) GetBlock(blockNumber int64) (core.Block,
 
 func (blockRepository BlockRepository) insertBlock(block core.Block) (int64, error) {
 	var blockId int64
-	tx, _ := blockRepository.DB.BeginTx(context.Background(), nil)
+	tx, _ := blockRepository.database.BeginTx(context.Background(), nil)
 	err := tx.QueryRow(
 		`INSERT INTO blocks
-                (eth_node_id, number, gaslimit, gasused, time, difficulty, hash, nonce, parenthash, size, uncle_hash, is_final, miner, extra_data, reward, uncles_reward)
-                VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16)
+                (eth_node_id, number, gaslimit, gasused, time, difficulty, hash, nonce, parenthash, size, uncle_hash, is_final, miner, extra_data, reward, uncles_reward, eth_node_fingerprint)
+                VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17)
                 RETURNING id `,
-		blockRepository.NodeID, block.Number, block.GasLimit, block.GasUsed, block.Time, block.Difficulty, block.Hash, block.Nonce, block.ParentHash, block.Size, block.UncleHash, block.IsFinal, block.Miner, block.ExtraData, block.Reward, block.UnclesReward).
+		blockRepository.database.NodeID, block.Number, block.GasLimit, block.GasUsed, block.Time, block.Difficulty, block.Hash, block.Nonce, block.ParentHash, block.Size, block.UncleHash, block.IsFinal, block.Miner, block.ExtraData, block.Reward, block.UnclesReward, blockRepository.database.Node.ID).
 		Scan(&blockId)
 	if err != nil {
 		tx.Rollback()
-		return 0, postgres.ErrDBInsertFailed
+		return 0, err
 	}
 	if len(block.Transactions) > 0 {
 		err = blockRepository.createTransactions(tx, blockId, block.Transactions)
@@ -189,11 +193,11 @@ func (blockRepository BlockRepository) createReceipt(tx *sql.Tx, blockId int64,
 
 func (blockRepository BlockRepository) getBlockHash(block core.Block) (string, bool) {
 	var retrievedBlockHash string
-	blockRepository.DB.Get(&retrievedBlockHash,
+	blockRepository.database.Get(&retrievedBlockHash,
 		`SELECT hash
                FROM blocks
                WHERE number = $1 AND eth_node_id = $2`,
-		block.Number, blockRepository.NodeID)
+		block.Number, blockRepository.database.NodeID)
 	return retrievedBlockHash, blockExists(retrievedBlockHash)
 }
 
@@ -217,11 +221,11 @@ func blockExists(retrievedBlockHash string) bool {
 }
 
 func (blockRepository BlockRepository) removeBlock(blockNumber int64) error {
-	_, err := blockRepository.DB.Exec(
+	_, err := blockRepository.database.Exec(
 		`DELETE FROM
                 blocks
                 WHERE number=$1 AND eth_node_id=$2`,
-		blockNumber, blockRepository.NodeID)
+		blockNumber, blockRepository.database.NodeID)
 	if err != nil {
 		return postgres.ErrDBDeleteFailed
 	}
@@ -238,7 +242,7 @@ func (blockRepository BlockRepository) loadBlock(blockRows *sqlx.Row) (core.Bloc
 	if err != nil {
 		return core.Block{}, err
 	}
-	transactionRows, err := blockRepository.DB.Queryx(`
+	transactionRows, err := blockRepository.database.Queryx(`
             SELECT hash,
 				   nonce,
 				   tx_to,

pkg/datastore/postgres/repositories/block_repository_test.go

@@ -15,16 +15,18 @@ import (
 
 var _ = Describe("Saving blocks", func() {
 	var db *postgres.DB
+	var node core.Node
 	var blockRepository datastore.BlockRepository
+
 	BeforeEach(func() {
-		node := core.Node{
+		node = core.Node{
 			GenesisBlock: "GENESIS",
 			NetworkID:    1,
 			ID:           "b6f90c0fdd8ec9607aed8ee45c69322e47b7063f0bfb7a29c8ecafab24d0a22d24dd2329b5ee6ed4125a03cb14e57fd584e67f9e53e6c631055cbbd82f080845",
 			ClientName:   "Geth/v1.7.2-stable-1db4ecdc/darwin-amd64/go1.9",
 		}
 		db = test_config.NewTestDB(node)
-		blockRepository = repositories.BlockRepository{DB: db}
+		blockRepository = repositories.NewBlockRepository(db)
 
 	})
 
@@ -40,7 +42,7 @@ var _ = Describe("Saving blocks", func() {
 			ClientName:   "Geth",
 		}
 		dbTwo := test_config.NewTestDB(nodeTwo)
-		repositoryTwo := repositories.BlockRepository{DB: dbTwo}
+		repositoryTwo := repositories.NewBlockRepository(dbTwo)
 
 		_, err := repositoryTwo.GetBlock(123)
 		Expect(err).To(HaveOccurred())
@@ -166,7 +168,7 @@ var _ = Describe("Saving blocks", func() {
 			NetworkID:    1,
 		}
 		dbTwo := test_config.NewTestDB(nodeTwo)
-		repositoryTwo := repositories.BlockRepository{DB: dbTwo}
+		repositoryTwo := repositories.NewBlockRepository(dbTwo)
 
 		blockRepository.CreateOrUpdateBlock(blockOne)
 		repositoryTwo.CreateOrUpdateBlock(blockTwo)
@@ -236,32 +238,39 @@ var _ = Describe("Saving blocks", func() {
 		It("is empty the starting block number is the highest known block number", func() {
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 1})
 
-			Expect(len(blockRepository.MissingBlockNumbers(1, 1))).To(Equal(0))
+			Expect(len(blockRepository.MissingBlockNumbers(1, 1, node.ID))).To(Equal(0))
 		})
 
 		It("is the only missing block number", func() {
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 2})
 
-			Expect(blockRepository.MissingBlockNumbers(1, 2)).To(Equal([]int64{1}))
+			Expect(blockRepository.MissingBlockNumbers(1, 2, node.ID)).To(Equal([]int64{1}))
 		})
 
 		It("is both missing block numbers", func() {
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 3})
 
-			Expect(blockRepository.MissingBlockNumbers(1, 3)).To(Equal([]int64{1, 2}))
+			Expect(blockRepository.MissingBlockNumbers(1, 3, node.ID)).To(Equal([]int64{1, 2}))
 		})
 
 		It("goes back to the starting block number", func() {
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 6})
 
-			Expect(blockRepository.MissingBlockNumbers(4, 6)).To(Equal([]int64{4, 5}))
+			Expect(blockRepository.MissingBlockNumbers(4, 6, node.ID)).To(Equal([]int64{4, 5}))
 		})
 
 		It("only includes missing block numbers", func() {
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 4})
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 6})
 
-			Expect(blockRepository.MissingBlockNumbers(4, 6)).To(Equal([]int64{5}))
+			Expect(blockRepository.MissingBlockNumbers(4, 6, node.ID)).To(Equal([]int64{5}))
+		})
+
+		It("includes blocks created by a different node", func() {
+			blockRepository.CreateOrUpdateBlock(core.Block{Number: 4})
+			blockRepository.CreateOrUpdateBlock(core.Block{Number: 6})
+
+			Expect(blockRepository.MissingBlockNumbers(4, 6, "Different node id")).To(Equal([]int64{4, 5, 6}))
 		})
 
 		It("is a list with multiple gaps", func() {
@@ -270,18 +279,18 @@ var _ = Describe("Saving blocks", func() {
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 8})
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 10})
 
-			Expect(blockRepository.MissingBlockNumbers(3, 10)).To(Equal([]int64{3, 6, 7, 9}))
+			Expect(blockRepository.MissingBlockNumbers(3, 10, node.ID)).To(Equal([]int64{3, 6, 7, 9}))
 		})
 
 		It("returns empty array when lower bound exceeds upper bound", func() {
-			Expect(blockRepository.MissingBlockNumbers(10000, 1)).To(Equal([]int64{}))
+			Expect(blockRepository.MissingBlockNumbers(10000, 1, node.ID)).To(Equal([]int64{}))
 		})
 
 		It("only returns requested range even when other gaps exist", func() {
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 3})
 			blockRepository.CreateOrUpdateBlock(core.Block{Number: 8})
 
-			Expect(blockRepository.MissingBlockNumbers(1, 5)).To(Equal([]int64{1, 2, 4, 5}))
+			Expect(blockRepository.MissingBlockNumbers(1, 5, node.ID)).To(Equal([]int64{1, 2, 4, 5}))
 		})
 	})
 

pkg/datastore/postgres/repositories/contract_repository_test.go

@@ -53,7 +53,7 @@ var _ = Describe("Creating contracts", func() {
 
 	It("returns transactions 'To' a contract", func() {
 		var blockRepository datastore.BlockRepository
-		blockRepository = repositories.BlockRepository{DB: db}
+		blockRepository = repositories.NewBlockRepository(db)
 		block := core.Block{
 			Number: 123,
 			Transactions: []core.Transaction{

pkg/datastore/postgres/repositories/logs_repository_test.go

@@ -28,7 +28,7 @@ var _ = Describe("Logs Repository", func() {
 				ClientName:   "Geth/v1.7.2-stable-1db4ecdc/darwin-amd64/go1.9",
 			}
 			db = test_config.NewTestDB(node)
-			blockRepository = repositories.BlockRepository{DB: db}
+			blockRepository = repositories.NewBlockRepository(db)
 			logsRepository = repositories.LogRepository{DB: db}
 			receiptRepository = repositories.ReceiptRepository{DB: db}
 		})

pkg/datastore/postgres/repositories/receipts_repository_test.go

@@ -10,7 +10,7 @@ import (
 	"github.com/vulcanize/vulcanizedb/test_config"
 )
 
-var _ = Describe("Logs Repository", func() {
+var _ = Describe("Receipts Repository", func() {
 	var blockRepository datastore.BlockRepository
 	var logRepository datastore.LogRepository
 	var receiptRepository datastore.ReceiptRepository
@@ -24,7 +24,7 @@ var _ = Describe("Logs Repository", func() {
 			ClientName:   "Geth/v1.7.2-stable-1db4ecdc/darwin-amd64/go1.9",
 		}
 		db = test_config.NewTestDB(node)
-		blockRepository = repositories.BlockRepository{DB: db}
+		blockRepository = repositories.NewBlockRepository(db)
 		logRepository = repositories.LogRepository{DB: db}
 		receiptRepository = repositories.ReceiptRepository{DB: db}
 	})
@@ -99,11 +99,12 @@ var _ = Describe("Logs Repository", func() {
 				Hash:    expected.TxHash,
 				Receipt: expected,
 			}
-
 			block := core.Block{Transactions: []core.Transaction{transaction}}
-			blockRepository.CreateOrUpdateBlock(block)
-			receipt, err := receiptRepository.GetReceipt("0xe340558980f89d5f86045ac11e5cc34e4bcec20f9f1e2a427aa39d87114e8223")
 
+			_, err := blockRepository.CreateOrUpdateBlock(block)
+
+			Expect(err).NotTo(HaveOccurred())
+			receipt, err := receiptRepository.GetReceipt("0xe340558980f89d5f86045ac11e5cc34e4bcec20f9f1e2a427aa39d87114e8223")
 			Expect(err).ToNot(HaveOccurred())
 			//Not currently serializing bloom logs
 			Expect(receipt.Bloom).To(Equal(core.Receipt{}.Bloom))
@@ -132,10 +133,11 @@ var _ = Describe("Logs Repository", func() {
 			block := core.Block{
 				Transactions: []core.Transaction{transaction},
 			}
-			blockRepository.CreateOrUpdateBlock(block)
 
-			_, err := receiptRepository.GetReceipt(receipt.TxHash)
+			_, err := blockRepository.CreateOrUpdateBlock(block)
 
+			Expect(err).NotTo(HaveOccurred())
+			_, err = receiptRepository.GetReceipt(receipt.TxHash)
 			Expect(err).To(Not(HaveOccurred()))
 		})
 	})

pkg/datastore/postgres/repositories/watched_events_repository_test.go

@@ -21,7 +21,7 @@ var _ = Describe("Watched Events Repository", func() {
 
 	BeforeEach(func() {
 		db = test_config.NewTestDB(core.Node{})
-		blocksRepository = repositories.BlockRepository{DB: db}
+		blocksRepository = repositories.NewBlockRepository(db)
 		filterRepository = repositories.FilterRepository{DB: db}
 		logRepository = repositories.LogRepository{DB: db}
 		receiptRepository = repositories.ReceiptRepository{DB: db}

pkg/datastore/repository.go

@@ -14,7 +14,7 @@ var ErrBlockDoesNotExist = func(blockNumber int64) error {
 type BlockRepository interface {
 	CreateOrUpdateBlock(block core.Block) (int64, error)
 	GetBlock(blockNumber int64) (core.Block, error)
-	MissingBlockNumbers(startingBlockNumber int64, endingBlockNumber int64) []int64
+	MissingBlockNumbers(startingBlockNumber int64, endingBlockNumber int64, nodeId string) []int64
 	SetBlocksStatus(chainHead int64)
 }
 

pkg/fakes/mock_block_repository.go

@@ -7,18 +7,32 @@ import (
 )
 
 type MockBlockRepository struct {
-	createOrUpdateBlockCalled      bool
-	createOrUpdateBlockPassedBlock core.Block
-	createOrUpdateBlockReturnInt   int64
-	createOrUpdateBlockReturnErr   error
+	createOrUpdateBlockCalled                    bool
+	createOrUpdateBlockPassedBlock               core.Block
+	createOrUpdateBlockReturnInt                 int64
+	createOrUpdateBlockReturnErr                 error
+	missingBlockNumbersCalled                    bool
+	missingBlockNumbersPassedStartingBlockNumber int64
+	missingBlockNumbersPassedEndingBlockNumber   int64
+	missingBlockNumbersPassedNodeId              string
+	missingBlockNumbersReturnArray               []int64
+	setBlockStatusCalled                         bool
+	setBlockStatusPassedChainHead                int64
 }
 
 func NewMockBlockRepository() *MockBlockRepository {
 	return &MockBlockRepository{
-		createOrUpdateBlockCalled:      false,
-		createOrUpdateBlockPassedBlock: core.Block{},
-		createOrUpdateBlockReturnInt:   0,
-		createOrUpdateBlockReturnErr:   nil,
+		createOrUpdateBlockCalled:                    false,
+		createOrUpdateBlockPassedBlock:               core.Block{},
+		createOrUpdateBlockReturnInt:                 0,
+		createOrUpdateBlockReturnErr:                 nil,
+		missingBlockNumbersCalled:                    false,
+		missingBlockNumbersPassedStartingBlockNumber: 0,
+		missingBlockNumbersPassedEndingBlockNumber:   0,
+		missingBlockNumbersPassedNodeId:              "",
+		missingBlockNumbersReturnArray:               nil,
+		setBlockStatusCalled:                         false,
+		setBlockStatusPassedChainHead:                0,
 	}
 }
 
@@ -27,6 +41,10 @@ func (mbr *MockBlockRepository) SetCreateOrUpdateBlockReturnVals(i int64, err er
 	mbr.createOrUpdateBlockReturnErr = err
 }
 
+func (mbr *MockBlockRepository) SetMissingBlockNumbersReturnArray(returnArray []int64) {
+	mbr.missingBlockNumbersReturnArray = returnArray
+}
+
 func (mbr *MockBlockRepository) CreateOrUpdateBlock(block core.Block) (int64, error) {
 	mbr.createOrUpdateBlockCalled = true
 	mbr.createOrUpdateBlockPassedBlock = block
@@ -37,15 +55,32 @@ func (mbr *MockBlockRepository) GetBlock(blockNumber int64) (core.Block, error)
 	panic("implement me")
 }
 
-func (mbr *MockBlockRepository) MissingBlockNumbers(startingBlockNumber int64, endingBlockNumber int64) []int64 {
-	panic("implement me")
+func (mbr *MockBlockRepository) MissingBlockNumbers(startingBlockNumber int64, endingBlockNumber int64, nodeId string) []int64 {
+	mbr.missingBlockNumbersCalled = true
+	mbr.missingBlockNumbersPassedStartingBlockNumber = startingBlockNumber
+	mbr.missingBlockNumbersPassedEndingBlockNumber = endingBlockNumber
+	mbr.missingBlockNumbersPassedNodeId = nodeId
+	return mbr.missingBlockNumbersReturnArray
 }
 
 func (mbr *MockBlockRepository) SetBlocksStatus(chainHead int64) {
-	panic("implement me")
+	mbr.setBlockStatusCalled = true
+	mbr.setBlockStatusPassedChainHead = chainHead
 }
 
 func (mbr *MockBlockRepository) AssertCreateOrUpdateBlockCalledWith(block core.Block) {
 	Expect(mbr.createOrUpdateBlockCalled).To(BeTrue())
 	Expect(mbr.createOrUpdateBlockPassedBlock).To(Equal(block))
 }
+
+func (mbr *MockBlockRepository) AssertMissingBlockNumbersCalledWith(startingBlockNumber int64, endingBlockNumber int64, nodeId string) {
+	Expect(mbr.missingBlockNumbersCalled).To(BeTrue())
+	Expect(mbr.missingBlockNumbersPassedStartingBlockNumber).To(Equal(startingBlockNumber))
+	Expect(mbr.missingBlockNumbersPassedEndingBlockNumber).To(Equal(endingBlockNumber))
+	Expect(mbr.missingBlockNumbersPassedNodeId).To(Equal(nodeId))
+}
+
+func (mbr *MockBlockRepository) AssertSetBlockStatusCalledWith(chainHead int64) {
+	Expect(mbr.setBlockStatusCalled).To(BeTrue())
+	Expect(mbr.setBlockStatusPassedChainHead).To(Equal(chainHead))
+}

pkg/fakes/mock_crypto_parser.go

@@ -0,0 +1,38 @@
+package fakes
+
+import . "github.com/onsi/gomega"
+
+type MockCryptoParser struct {
+	parsePublicKeyCalled           bool
+	parsePublicKeyPassedPrivateKey string
+	parsePublicKeyReturnString     string
+	parsePublicKeyReturnErr        error
+}
+
+func NewMockCryptoParser() *MockCryptoParser {
+	return &MockCryptoParser{
+		parsePublicKeyCalled:           false,
+		parsePublicKeyPassedPrivateKey: "",
+		parsePublicKeyReturnString:     "",
+		parsePublicKeyReturnErr:        nil,
+	}
+}
+
+func (mcp *MockCryptoParser) SetReturnVal(pubKey string) {
+	mcp.parsePublicKeyReturnString = pubKey
+}
+
+func (mcp *MockCryptoParser) SetReturnErr(err error) {
+	mcp.parsePublicKeyReturnErr = err
+}
+
+func (mcp *MockCryptoParser) ParsePublicKey(privateKey string) (string, error) {
+	mcp.parsePublicKeyCalled = true
+	mcp.parsePublicKeyPassedPrivateKey = privateKey
+	return mcp.parsePublicKeyReturnString, mcp.parsePublicKeyReturnErr
+}
+
+func (mcp *MockCryptoParser) AssertParsePublicKeyCalledWith(privateKey string) {
+	Expect(mcp.parsePublicKeyCalled).To(BeTrue())
+	Expect(mcp.parsePublicKeyPassedPrivateKey).To(Equal(privateKey))
+}

pkg/fakes/mock_fs_reader.go

@@ -0,0 +1,38 @@
+package fakes
+
+import . "github.com/onsi/gomega"
+
+type MockFsReader struct {
+	readCalled      bool
+	readPassedPath  string
+	readReturnBytes []byte
+	readReturnErr   error
+}
+
+func NewMockFsReader() *MockFsReader {
+	return &MockFsReader{
+		readCalled:      false,
+		readPassedPath:  "",
+		readReturnBytes: nil,
+		readReturnErr:   nil,
+	}
+}
+
+func (mfr *MockFsReader) SetReturnBytes(returnBytes []byte) {
+	mfr.readReturnBytes = returnBytes
+}
+
+func (mfr *MockFsReader) SetReturnErr(err error) {
+	mfr.readReturnErr = err
+}
+
+func (mfr *MockFsReader) Read(path string) ([]byte, error) {
+	mfr.readCalled = true
+	mfr.readPassedPath = path
+	return mfr.readReturnBytes, mfr.readReturnErr
+}
+
+func (mfr *MockFsReader) AssertReadCalledWith(path string) {
+	Expect(mfr.readCalled).To(BeTrue())
+	Expect(mfr.readPassedPath).To(Equal(path))
+}

pkg/fs/reader.go

@@ -0,0 +1,14 @@
+package fs
+
+import "io/ioutil"
+
+type Reader interface {
+	Read(path string) ([]byte, error)
+}
+
+type FsReader struct {
+}
+
+func (FsReader) Read(path string) ([]byte, error) {
+	return ioutil.ReadFile(path)
+}

pkg/geth/abi.go

@@ -2,7 +2,6 @@ package geth
 
 import (
 	"errors"
-	"io/ioutil"
 	"strings"
 
 	"encoding/json"
@@ -11,6 +10,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/vulcanize/vulcanizedb/pkg/fs"
 )
 
 var (
@@ -80,7 +80,8 @@ func ParseAbi(abiString string) (abi.ABI, error) {
 }
 
 func ReadAbiFile(abiFilePath string) (string, error) {
-	filesBytes, err := ioutil.ReadFile(abiFilePath)
+	reader := fs.FsReader{}
+	filesBytes, err := reader.Read(abiFilePath)
 	if err != nil {
 		return "", ErrMissingAbiFile
 	}

pkg/geth/cold_import/cold_import_suite_test.go

@@ -0,0 +1,13 @@
+package cold_import_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestColdImport(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "ColdImport Suite")
+}

pkg/geth/cold_import/importer.go

@@ -1,9 +1,8 @@
-package geth
+package cold_import
 
 import (
 	"github.com/vulcanize/vulcanizedb/pkg/datastore"
 	"github.com/vulcanize/vulcanizedb/pkg/datastore/ethereum"
-	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
 	"github.com/vulcanize/vulcanizedb/pkg/geth/converters/common"
 )
 
@@ -23,22 +22,21 @@ func NewColdImporter(ethDB ethereum.Database, blockRepository datastore.BlockRep
 	}
 }
 
-func (ci *ColdImporter) Execute(startingBlockNumber int64, endingBlockNumber int64) error {
-	for i := startingBlockNumber; i <= endingBlockNumber; i++ {
-		hash := ci.ethDB.GetBlockHash(i)
+func (ci *ColdImporter) Execute(startingBlockNumber int64, endingBlockNumber int64, nodeId string) error {
+	missingBlocks := ci.blockRepository.MissingBlockNumbers(startingBlockNumber, endingBlockNumber, nodeId)
+	for _, n := range missingBlocks {
+		hash := ci.ethDB.GetBlockHash(n)
 
-		blockId, err := ci.createBlocksAndTransactions(hash, i)
+		blockId, err := ci.createBlocksAndTransactions(hash, n)
 		if err != nil {
-			if err == repositories.ErrBlockExists {
-				continue
-			}
 			return err
 		}
-		err = ci.createReceiptsAndLogs(hash, i, blockId)
+		err = ci.createReceiptsAndLogs(hash, n, blockId)
 		if err != nil {
 			return err
 		}
 	}
+	ci.blockRepository.SetBlocksStatus(endingBlockNumber)
 	return nil
 }
 

pkg/geth/cold_import/importer_test.go

@@ -0,0 +1,133 @@
+package cold_import_test
+
+import (
+	"github.com/ethereum/go-ethereum/core/types"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
+	"github.com/vulcanize/vulcanizedb/pkg/fakes"
+	"github.com/vulcanize/vulcanizedb/pkg/geth/cold_import"
+	vulcCommon "github.com/vulcanize/vulcanizedb/pkg/geth/converters/common"
+)
+
+var _ = Describe("Geth cold importer", func() {
+	var fakeGethBlock *types.Block
+
+	BeforeEach(func() {
+		header := &types.Header{}
+		transactions := []*types.Transaction{}
+		uncles := []*types.Header{}
+		receipts := []*types.Receipt{}
+		fakeGethBlock = types.NewBlock(header, transactions, uncles, receipts)
+	})
+
+	It("only populates missing blocks", func() {
+		mockEthereumDatabase := fakes.NewMockEthereumDatabase()
+		mockBlockRepository := fakes.NewMockBlockRepository()
+		mockReceiptRepository := fakes.NewMockReceiptRepository()
+		mockTransactionConverter := fakes.NewMockTransactionConverter()
+		blockConverter := vulcCommon.NewBlockConverter(mockTransactionConverter)
+
+		nodeId := "node_id"
+		startingBlockNumber := int64(120)
+		missingBlockNumber := int64(123)
+		endingBlockNumber := int64(125)
+		fakeHash := []byte{1, 2, 3, 4, 5}
+		mockBlockRepository.SetMissingBlockNumbersReturnArray([]int64{missingBlockNumber})
+		mockEthereumDatabase.SetReturnHash(fakeHash)
+		mockEthereumDatabase.SetReturnBlock(fakeGethBlock)
+		importer := cold_import.NewColdImporter(mockEthereumDatabase, mockBlockRepository, mockReceiptRepository, blockConverter)
+
+		importer.Execute(startingBlockNumber, endingBlockNumber, nodeId)
+
+		mockBlockRepository.AssertMissingBlockNumbersCalledWith(startingBlockNumber, endingBlockNumber, nodeId)
+		mockEthereumDatabase.AssertGetBlockHashCalledWith(missingBlockNumber)
+		mockEthereumDatabase.AssertGetBlockCalledWith(fakeHash, missingBlockNumber)
+	})
+
+	It("fetches missing blocks from level db and persists them to pg", func() {
+		mockEthereumDatabase := fakes.NewMockEthereumDatabase()
+		mockBlockRepository := fakes.NewMockBlockRepository()
+		mockReceiptRepository := fakes.NewMockReceiptRepository()
+		mockTransactionConverter := fakes.NewMockTransactionConverter()
+		blockConverter := vulcCommon.NewBlockConverter(mockTransactionConverter)
+
+		blockNumber := int64(123)
+		fakeHash := []byte{1, 2, 3, 4, 5}
+		mockBlockRepository.SetMissingBlockNumbersReturnArray([]int64{blockNumber})
+		mockEthereumDatabase.SetReturnHash(fakeHash)
+		mockEthereumDatabase.SetReturnBlock(fakeGethBlock)
+		importer := cold_import.NewColdImporter(mockEthereumDatabase, mockBlockRepository, mockReceiptRepository, blockConverter)
+
+		importer.Execute(blockNumber, blockNumber, "node_id")
+
+		mockEthereumDatabase.AssertGetBlockHashCalledWith(blockNumber)
+		mockEthereumDatabase.AssertGetBlockCalledWith(fakeHash, blockNumber)
+		mockTransactionConverter.AssertConvertTransactionsToCoreCalledWith(fakeGethBlock)
+		convertedBlock, err := blockConverter.ToCoreBlock(fakeGethBlock)
+		Expect(err).NotTo(HaveOccurred())
+		mockBlockRepository.AssertCreateOrUpdateBlockCalledWith(convertedBlock)
+	})
+
+	It("sets is_final status on populated blocks", func() {
+		mockEthereumDatabase := fakes.NewMockEthereumDatabase()
+		mockBlockRepository := fakes.NewMockBlockRepository()
+		mockReceiptRepository := fakes.NewMockReceiptRepository()
+		mockTransactionConverter := fakes.NewMockTransactionConverter()
+		blockConverter := vulcCommon.NewBlockConverter(mockTransactionConverter)
+
+		startingBlockNumber := int64(120)
+		endingBlockNumber := int64(125)
+		fakeHash := []byte{1, 2, 3, 4, 5}
+		mockBlockRepository.SetMissingBlockNumbersReturnArray([]int64{startingBlockNumber})
+		mockEthereumDatabase.SetReturnHash(fakeHash)
+		mockEthereumDatabase.SetReturnBlock(fakeGethBlock)
+		importer := cold_import.NewColdImporter(mockEthereumDatabase, mockBlockRepository, mockReceiptRepository, blockConverter)
+
+		importer.Execute(startingBlockNumber, endingBlockNumber, "node_id")
+
+		mockBlockRepository.AssertSetBlockStatusCalledWith(endingBlockNumber)
+	})
+
+	It("fetches receipts from level db and persists them to pg", func() {
+		mockEthereumDatabase := fakes.NewMockEthereumDatabase()
+		mockBlockRepository := fakes.NewMockBlockRepository()
+		mockReceiptRepository := fakes.NewMockReceiptRepository()
+		mockTransactionConverter := fakes.NewMockTransactionConverter()
+		blockConverter := vulcCommon.NewBlockConverter(mockTransactionConverter)
+
+		blockNumber := int64(123)
+		blockId := int64(999)
+		mockBlockRepository.SetCreateOrUpdateBlockReturnVals(blockId, nil)
+		fakeReceipts := types.Receipts{{}}
+		mockBlockRepository.SetMissingBlockNumbersReturnArray([]int64{blockNumber})
+		mockEthereumDatabase.SetReturnBlock(fakeGethBlock)
+		mockEthereumDatabase.SetReturnReceipts(fakeReceipts)
+		importer := cold_import.NewColdImporter(mockEthereumDatabase, mockBlockRepository, mockReceiptRepository, blockConverter)
+
+		importer.Execute(blockNumber, blockNumber, "node_id")
+
+		expectedReceipts := vulcCommon.ToCoreReceipts(fakeReceipts)
+		mockReceiptRepository.AssertCreateReceiptsAndLogsCalledWith(blockId, expectedReceipts)
+	})
+
+	It("does not fetch receipts if block already exists", func() {
+		mockEthereumDatabase := fakes.NewMockEthereumDatabase()
+		mockBlockRepository := fakes.NewMockBlockRepository()
+		mockReceiptRepository := fakes.NewMockReceiptRepository()
+		mockTransactionConverter := fakes.NewMockTransactionConverter()
+		blockConverter := vulcCommon.NewBlockConverter(mockTransactionConverter)
+
+		blockNumber := int64(123)
+		mockBlockRepository.SetMissingBlockNumbersReturnArray([]int64{})
+		mockEthereumDatabase.SetReturnBlock(fakeGethBlock)
+		mockBlockRepository.SetCreateOrUpdateBlockReturnVals(0, repositories.ErrBlockExists)
+		importer := cold_import.NewColdImporter(mockEthereumDatabase, mockBlockRepository, mockReceiptRepository, blockConverter)
+
+		err := importer.Execute(blockNumber, blockNumber, "node_id")
+
+		Expect(err).NotTo(HaveOccurred())
+		mockReceiptRepository.AssertCreateReceiptsAndLogsNotCalled()
+	})
+})

pkg/geth/cold_import/node_builder.go

@@ -0,0 +1,68 @@
+package cold_import
+
+import (
+	"errors"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/vulcanize/vulcanizedb/pkg/core"
+	"github.com/vulcanize/vulcanizedb/pkg/crypto"
+	"github.com/vulcanize/vulcanizedb/pkg/fs"
+	"strings"
+)
+
+const (
+	ColdImportClientName         = "LevelDbColdImport"
+	ColdImportNetworkId  float64 = 1
+)
+
+var (
+	NoChainDataErr = errors.New("Level DB path does not include chaindata extension.")
+	NoGethRootErr  = errors.New("Level DB path does not include root path to geth.")
+)
+
+type ColdImportNodeBuilder struct {
+	reader fs.Reader
+	parser crypto.PublicKeyParser
+}
+
+func NewColdImportNodeBuilder(reader fs.Reader, parser crypto.PublicKeyParser) ColdImportNodeBuilder {
+	return ColdImportNodeBuilder{reader: reader, parser: parser}
+}
+
+func (cinb ColdImportNodeBuilder) GetNode(genesisBlock []byte, levelPath string) (core.Node, error) {
+	var coldNode core.Node
+	nodeKeyPath, err := getNodeKeyPath(levelPath)
+	if err != nil {
+		return coldNode, err
+	}
+	nodeKey, err := cinb.reader.Read(nodeKeyPath)
+	if err != nil {
+		return coldNode, err
+	}
+	nodeId, err := cinb.parser.ParsePublicKey(string(nodeKey))
+	if err != nil {
+		return coldNode, err
+	}
+	genesisBlockHash := common.BytesToHash(genesisBlock).String()
+	coldNode = core.Node{
+		GenesisBlock: genesisBlockHash,
+		NetworkID:    ColdImportNetworkId,
+		ID:           nodeId,
+		ClientName:   ColdImportClientName,
+	}
+	return coldNode, nil
+}
+
+func getNodeKeyPath(levelPath string) (string, error) {
+	chaindataExtension := "chaindata"
+	if !strings.Contains(levelPath, chaindataExtension) {
+		return "", NoChainDataErr
+	}
+	chaindataExtensionLength := len(chaindataExtension)
+	gethRootPathLength := len(levelPath) - chaindataExtensionLength
+	if gethRootPathLength <= chaindataExtensionLength {
+		return "", NoGethRootErr
+	}
+	gethRootPath := levelPath[:gethRootPathLength]
+	nodeKeyPath := gethRootPath + "nodekey"
+	return nodeKeyPath, nil
+}

pkg/geth/cold_import/node_builder_test.go

@@ -0,0 +1,97 @@
+package cold_import_test
+
+import (
+	"errors"
+	"github.com/ethereum/go-ethereum/common"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	"github.com/vulcanize/vulcanizedb/pkg/fakes"
+	"github.com/vulcanize/vulcanizedb/pkg/geth/cold_import"
+)
+
+var _ = Describe("Cold importer node builder", func() {
+	Describe("when level path is not valid", func() {
+		It("returns error if no chaindata extension", func() {
+			gethPath := "path/to/geth"
+			mockReader := fakes.NewMockFsReader()
+			mockParser := fakes.NewMockCryptoParser()
+			nodeBuilder := cold_import.NewColdImportNodeBuilder(mockReader, mockParser)
+
+			_, err := nodeBuilder.GetNode([]byte{1, 2, 3, 4, 5}, gethPath)
+
+			Expect(err).To(HaveOccurred())
+			Expect(err).To(MatchError(cold_import.NoChainDataErr))
+		})
+
+		It("returns error if no root geth path", func() {
+			chaindataPath := "chaindata"
+			mockReader := fakes.NewMockFsReader()
+			mockParser := fakes.NewMockCryptoParser()
+			nodeBuilder := cold_import.NewColdImportNodeBuilder(mockReader, mockParser)
+
+			_, err := nodeBuilder.GetNode([]byte{1, 2, 3, 4, 5}, chaindataPath)
+
+			Expect(err).To(HaveOccurred())
+			Expect(err).To(MatchError(cold_import.NoGethRootErr))
+		})
+	})
+
+	Describe("when reader fails", func() {
+		It("returns err", func() {
+			mockReader := fakes.NewMockFsReader()
+			fakeError := errors.New("Failed")
+			mockReader.SetReturnErr(fakeError)
+			mockParser := fakes.NewMockCryptoParser()
+			nodeBuilder := cold_import.NewColdImportNodeBuilder(mockReader, mockParser)
+
+			_, err := nodeBuilder.GetNode([]byte{1, 2, 3, 4, 5}, "path/to/geth/chaindata")
+
+			Expect(err).To(HaveOccurred())
+			Expect(err).To(MatchError(fakeError))
+		})
+	})
+
+	Describe("when parser fails", func() {
+		It("returns err", func() {
+			mockReader := fakes.NewMockFsReader()
+			mockParser := fakes.NewMockCryptoParser()
+			fakeErr := errors.New("Failed")
+			mockParser.SetReturnErr(fakeErr)
+			nodeBuilder := cold_import.NewColdImportNodeBuilder(mockReader, mockParser)
+
+			_, err := nodeBuilder.GetNode([]byte{1, 2, 3, 4, 5}, "path/to/geth/chaindata")
+
+			Expect(err).To(HaveOccurred())
+			Expect(err).To(MatchError(fakeErr))
+		})
+	})
+
+	Describe("when path is valid and reader and parser succeed", func() {
+		It("builds a node", func() {
+			fakeGenesisBlock := []byte{1, 2, 3, 4, 5}
+			fakeRootGethPath := "root/path/to/geth/"
+			fakeLevelPath := fakeRootGethPath + "chaindata"
+			fakeNodeKeyPath := fakeRootGethPath + "nodekey"
+			fakePublicKeyBytes := []byte{5, 4, 3, 2, 1}
+			fakePublicKeyString := "public_key"
+			mockReader := fakes.NewMockFsReader()
+			mockReader.SetReturnBytes(fakePublicKeyBytes)
+			mockParser := fakes.NewMockCryptoParser()
+			mockParser.SetReturnVal(fakePublicKeyString)
+			nodeBuilder := cold_import.NewColdImportNodeBuilder(mockReader, mockParser)
+
+			result, err := nodeBuilder.GetNode(fakeGenesisBlock, fakeLevelPath)
+
+			Expect(err).NotTo(HaveOccurred())
+			mockReader.AssertReadCalledWith(fakeNodeKeyPath)
+			mockParser.AssertParsePublicKeyCalledWith(string(fakePublicKeyBytes))
+			Expect(result).NotTo(BeNil())
+			Expect(result.ClientName).To(Equal(cold_import.ColdImportClientName))
+			expectedGenesisBlock := common.BytesToHash(fakeGenesisBlock).String()
+			Expect(result.GenesisBlock).To(Equal(expectedGenesisBlock))
+			Expect(result.ID).To(Equal(fakePublicKeyString))
+			Expect(result.NetworkID).To(Equal(cold_import.ColdImportNetworkId))
+		})
+	})
+
+})

pkg/geth/cold_importer_test.go

@@ -1,85 +0,0 @@
-package geth_test
-
-import (
-	"github.com/ethereum/go-ethereum/core/types"
-	. "github.com/onsi/ginkgo"
-	. "github.com/onsi/gomega"
-
-	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres/repositories"
-	"github.com/vulcanize/vulcanizedb/pkg/fakes"
-	"github.com/vulcanize/vulcanizedb/pkg/geth"
-	vulcCommon "github.com/vulcanize/vulcanizedb/pkg/geth/converters/common"
-)
-
-var _ = Describe("Geth cold importer", func() {
-	var fakeGethBlock *types.Block
-
-	BeforeEach(func() {
-		header := &types.Header{}
-		transactions := []*types.Transaction{}
-		uncles := []*types.Header{}
-		receipts := []*types.Receipt{}
-		fakeGethBlock = types.NewBlock(header, transactions, uncles, receipts)
-	})
-
-	It("fetches blocks from level db and persists them to pg", func() {
-		mockEthereumDatabase := fakes.NewMockEthereumDatabase()
-		mockBlockRepository := fakes.NewMockBlockRepository()
-		mockReceiptRepository := fakes.NewMockReceiptRepository()
-		mockTransactionConverter := fakes.NewMockTransactionConverter()
-		blockConverter := vulcCommon.NewBlockConverter(mockTransactionConverter)
-
-		blockNumber := int64(123)
-		fakeHash := []byte{1, 2, 3, 4, 5}
-		mockEthereumDatabase.SetReturnHash(fakeHash)
-		mockEthereumDatabase.SetReturnBlock(fakeGethBlock)
-		importer := geth.NewColdImporter(mockEthereumDatabase, mockBlockRepository, mockReceiptRepository, blockConverter)
-
-		importer.Execute(blockNumber, blockNumber)
-
-		mockEthereumDatabase.AssertGetBlockHashCalledWith(blockNumber)
-		mockEthereumDatabase.AssertGetBlockCalledWith(fakeHash, blockNumber)
-		mockTransactionConverter.AssertConvertTransactionsToCoreCalledWith(fakeGethBlock)
-		convertedBlock, err := blockConverter.ToCoreBlock(fakeGethBlock)
-		Expect(err).NotTo(HaveOccurred())
-		mockBlockRepository.AssertCreateOrUpdateBlockCalledWith(convertedBlock)
-	})
-
-	It("fetches receipts from level db and persists them to pg", func() {
-		mockEthereumDatabase := fakes.NewMockEthereumDatabase()
-		mockBlockRepository := fakes.NewMockBlockRepository()
-		mockReceiptRepository := fakes.NewMockReceiptRepository()
-		mockTransactionConverter := fakes.NewMockTransactionConverter()
-		blockConverter := vulcCommon.NewBlockConverter(mockTransactionConverter)
-
-		blockNumber := int64(123)
-		blockId := int64(999)
-		mockBlockRepository.SetCreateOrUpdateBlockReturnVals(blockId, nil)
-		fakeReceipts := types.Receipts{{}}
-		mockEthereumDatabase.SetReturnBlock(fakeGethBlock)
-		mockEthereumDatabase.SetReturnReceipts(fakeReceipts)
-		importer := geth.NewColdImporter(mockEthereumDatabase, mockBlockRepository, mockReceiptRepository, blockConverter)
-
-		importer.Execute(blockNumber, blockNumber)
-
-		expectedReceipts := vulcCommon.ToCoreReceipts(fakeReceipts)
-		mockReceiptRepository.AssertCreateReceiptsAndLogsCalledWith(blockId, expectedReceipts)
-	})
-
-	It("does not fetch receipts if block already exists", func() {
-		mockEthereumDatabase := fakes.NewMockEthereumDatabase()
-		mockBlockRepository := fakes.NewMockBlockRepository()
-		mockReceiptRepository := fakes.NewMockReceiptRepository()
-		mockTransactionConverter := fakes.NewMockTransactionConverter()
-		blockConverter := vulcCommon.NewBlockConverter(mockTransactionConverter)
-
-		mockEthereumDatabase.SetReturnBlock(fakeGethBlock)
-		mockBlockRepository.SetCreateOrUpdateBlockReturnVals(0, repositories.ErrBlockExists)
-		importer := geth.NewColdImporter(mockEthereumDatabase, mockBlockRepository, mockReceiptRepository, blockConverter)
-
-		err := importer.Execute(1, 1)
-
-		Expect(err).NotTo(HaveOccurred())
-		mockReceiptRepository.AssertCreateReceiptsAndLogsNotCalled()
-	})
-})

pkg/history/populate_blocks.go

@@ -9,7 +9,7 @@ import (
 
 func PopulateMissingBlocks(blockchain core.Blockchain, blockRepository datastore.BlockRepository, startingBlockNumber int64) int {
 	lastBlock := blockchain.LastBlock().Int64()
-	blockRange := blockRepository.MissingBlockNumbers(startingBlockNumber, lastBlock-1)
+	blockRange := blockRepository.MissingBlockNumbers(startingBlockNumber, lastBlock-1, blockchain.Node().ID)
 	log.SetPrefix("")
 	log.Printf("Backfilling %d blocks\n\n", len(blockRange))
 	RetrieveAndUpdateBlocks(blockchain, blockRepository, blockRange)