Require ABI filepath for watching a contract

cmd/subscribe_contract/main.go

@@ -10,8 +10,13 @@ import (
 func main() {
 	environment := flag.String("environment", "", "Environment name")
 	contractHash := flag.String("contract-hash", "", "contract-hash=x1234")
+	abiFilepath := flag.String("abi-filepath", "", "path/to/abifile.json")
 	flag.Parse()
 	config := cmd.LoadConfig(*environment)
 	repository := cmd.LoadPostgres(config.Database)
-	repository.CreateWatchedContract(repositories.WatchedContract{Hash: *contractHash})
+	watchedContract := repositories.WatchedContract{
+		Abi:  cmd.ReadAbiFile(*abiFilepath),
+		Hash: *contractHash,
+	}
+	repository.CreateWatchedContract(watchedContract)
 }

cmd/utils.go

@@ -3,7 +3,10 @@ package cmd
 import (
 	"log"
 
+	"path/filepath"
+
 	"github.com/8thlight/vulcanizedb/pkg/config"
+	"github.com/8thlight/vulcanizedb/pkg/geth"
 	"github.com/8thlight/vulcanizedb/pkg/repositories"
 )
 
@@ -22,3 +25,14 @@ func LoadPostgres(database config.Database) repositories.Postgres {
 	}
 	return repository
 }
+
+func ReadAbiFile(abiFilepath string) string {
+	if !filepath.IsAbs(abiFilepath) {
+		abiFilepath = filepath.Join(config.ProjectRoot(), abiFilepath)
+	}
+	abi, err := geth.ReadAbiFile(abiFilepath)
+	if err != nil {
+		log.Fatalf("Error reading ABI file at \"%s\"\n %v", abiFilepath, err)
+	}
+	return abi
+}