66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
package utils
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import (
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"log"
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"math/big"
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"os"
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"path/filepath"
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"github.com/vulcanize/vulcanizedb/pkg/config"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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"github.com/vulcanize/vulcanizedb/pkg/geth"
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)
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func LoadPostgres(database config.Database, node core.Node) postgres.DB {
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db, err := postgres.NewDB(database, node)
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if err != nil {
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log.Fatalf("Error loading postgres\n%v", err)
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}
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return *db
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}
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func ReadAbiFile(abiFilepath string) string {
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abiFilepath = AbsFilePath(abiFilepath)
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abi, err := geth.ReadAbiFile(abiFilepath)
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if err != nil {
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log.Fatalf("Error reading ABI file at \"%s\"\n %v", abiFilepath, err)
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}
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return abi
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}
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func AbsFilePath(filePath string) string {
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if !filepath.IsAbs(filePath) {
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cwd, _ := os.Getwd()
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filePath = filepath.Join(cwd, filePath)
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}
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return filePath
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}
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func GetAbi(abiFilepath string, contractHash string, network string) string {
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var contractAbiString string
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if abiFilepath != "" {
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contractAbiString = ReadAbiFile(abiFilepath)
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} else {
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url := geth.GenURL(network)
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etherscan := geth.NewEtherScanClient(url)
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log.Printf("No ABI supplied. Retrieving ABI from Etherscan: %s", url)
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contractAbiString, _ = etherscan.GetAbi(contractHash)
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}
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_, err := geth.ParseAbi(contractAbiString)
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if err != nil {
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log.Fatalln("Invalid ABI")
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}
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return contractAbiString
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}
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func RequestedBlockNumber(blockNumber *int64) *big.Int {
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var _blockNumber *big.Int
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if *blockNumber == -1 {
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_blockNumber = nil
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} else {
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_blockNumber = big.NewInt(*blockNumber)
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}
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return _blockNumber
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}
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