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