remove pkg/transformers; extract shared files needed to

libraries/shared; work on automated db migration management

cmd/composeAndExecute.go

@@ -23,6 +23,7 @@ import (
 	"time"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 
 	"github.com/vulcanize/vulcanizedb/libraries/shared/transformer"
 	"github.com/vulcanize/vulcanizedb/libraries/shared/watcher"
@@ -47,8 +48,7 @@ var composeAndExecuteCmd = &cobra.Command{
     ipcPath = "http://kovan0.vulcanize.io:8545"
 
 [exporter]
-    filePath = "$GOPATH/src/github.com/vulcanize/vulcanizedb/plugins/"
-    fileName = "exporter"
+    name = "exporter"
     [exporter.transformers]
             transformer1 = "github.com/path/to/transformer1"
             transformer2 = "github.com/path/to/transformer2"
@@ -75,9 +75,20 @@ loaded into and executed over by a generic watcher`,
 
 func composeAndExecute() {
 	// generate code to build the plugin according to the config file
+	autogenConfig = autogen.Config{
+		FilePath:     "$GOPATH/src/github.com/vulcanize/vulcanizedb/plugins",
+		FileName:     viper.GetString("exporter.name"),
+		Save:         viper.GetBool("exporter.save"),
+		Initializers: viper.GetStringMapString("exporter.transformers"),
+		Dependencies: viper.GetStringMapString("exporter.repositories"),
+		Migrations:   viper.GetStringMapString("exporter.migrations"),
+	}
+
+	fmt.Println("generating plugin")
 	generator := autogen.NewGenerator(autogenConfig, databaseConfig)
 	err := generator.GenerateExporterPlugin()
 	if err != nil {
+		fmt.Println("generating plugin failed")
 		log.Fatal(err)
 	}
 
@@ -86,14 +97,21 @@ func composeAndExecute() {
 	if err != nil {
 		log.Fatal(err)
 	}
+	if !autogenConfig.Save {
+		defer utils.ClearFiles(pluginPath)
+	}
+	fmt.Println("opening plugin")
 	plug, err := plugin.Open(pluginPath)
 	if err != nil {
+		fmt.Println("opening pluggin failed")
 		log.Fatal(err)
 	}
 
 	// Load the `Exporter` symbol from the plugin
+	fmt.Println("loading transformers from plugin")
 	symExporter, err := plug.Lookup("Exporter")
 	if err != nil {
+		fmt.Println("loading Exporter symbol failed")
 		log.Fatal(err)
 	}
 
@@ -116,6 +134,7 @@ func composeAndExecute() {
 	w.AddTransformers(initializers)
 
 	// Execute over the TransformerInitializer set using the watcher
+	fmt.Println("executing transformers")
 	ticker := time.NewTicker(pollingInterval)
 	defer ticker.Stop()
 	for range ticker.C {

cmd/getSignatures.go

@@ -1,74 +0,0 @@
-// VulcanizeDB
-// Copyright © 2018 Vulcanize
-
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Affero General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU Affero General Public License for more details.
-
-// You should have received a copy of the GNU Affero General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-package cmd
-
-import (
-	"fmt"
-	"github.com/spf13/cobra"
-	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
-)
-
-// getSignaturesCmd represents the getSignatures command
-var getSignaturesCmd = &cobra.Command{
-	Use:   "getSignatures",
-	Short: "A command to see transformer method and event signatures",
-	Long: `A convenience command to see method/event signatures for Maker transformers
-vulcanizedb getSignatures`,
-	Run: func(cmd *cobra.Command, args []string) {
-		getSignatures()
-	},
-}
-
-func getSignatures() {
-	signatures := make(map[string]string)
-	signatures["BiteSignature"] = constants.GetBiteSignature()
-	signatures["CatFileChopLumpSignature"] = constants.GetCatFileChopLumpSignature()
-	signatures["CatFileFlipSignature"] = constants.GetCatFileFlipSignature()
-	signatures["CatFilePitVowSignature"] = constants.GetCatFilePitVowSignature()
-	signatures["DealSignature"] = constants.GetDealSignature()
-	signatures["DentFunctionSignature"] = constants.GetDentFunctionSignature()
-	signatures["DripDripSignature"] = constants.GetDripDripSignature()
-	signatures["DripFileIlkSignature"] = constants.GetDripFileIlkSignature()
-	signatures["DripFileRepoSignature"] = constants.GetDripFileRepoSignature()
-	signatures["DripFileVowSignature"] = constants.GetDripFileVowSignature()
-	signatures["FlapKickSignature"] = constants.GetFlapKickSignature()
-	signatures["FlipKickSignature"] = constants.GetFlipKickSignature()
-	signatures["FlopKickSignature"] = constants.GetFlopKickSignature()
-	signatures["FrobSignature"] = constants.GetFrobSignature()
-	signatures["LogValueSignature"] = constants.GetLogValueSignature()
-	signatures["PitFileDebtCeilingSignature"] = constants.GetPitFileDebtCeilingSignature()
-	signatures["PitFileIlkSignature"] = constants.GetPitFileIlkSignature()
-	signatures["TendFunctionSignature"] = constants.GetTendFunctionSignature()
-	signatures["VatFluxSignature"] = constants.GetVatFluxSignature()
-	signatures["VatFoldSignature"] = constants.GetVatFoldSignature()
-	signatures["VatGrabSignature"] = constants.GetVatGrabSignature()
-	signatures["VatHealSignature"] = constants.GetVatHealSignature()
-	signatures["VatInitSignature"] = constants.GetVatInitSignature()
-	signatures["VatMoveSignature"] = constants.GetVatMoveSignature()
-	signatures["VatSlipSignature"] = constants.GetVatSlipSignature()
-	signatures["VatTollSignature"] = constants.GetVatTollSignature()
-	signatures["VatTuneSignature"] = constants.GetVatTuneSignature()
-	signatures["VowFlogSignature"] = constants.GetVowFlogSignature()
-
-	for name, sig := range signatures {
-		fmt.Println(name, ": ", sig)
-	}
-}
-
-func init() {
-	rootCmd.AddCommand(getSignaturesCmd)
-}

cmd/root.go

@@ -55,7 +55,7 @@ const (
 
 var rootCmd = &cobra.Command{
 	Use:              "vulcanizedb",
-	PersistentPreRun: configure,
+	PersistentPreRun: database,
 }
 
 func Execute() {
@@ -65,7 +65,7 @@ func Execute() {
 	}
 }
 
-func configure(cmd *cobra.Command, args []string) {
+func database(cmd *cobra.Command, args []string) {
 	ipc = viper.GetString("client.ipcpath")
 	levelDbPath = viper.GetString("client.leveldbpath")
 	storageDiffsPath = viper.GetString("filesystem.storageDiffsPath")
@@ -76,13 +76,6 @@ func configure(cmd *cobra.Command, args []string) {
 		User:     viper.GetString("database.user"),
 		Password: viper.GetString("database.password"),
 	}
-	autogenConfig = autogen.Config{
-		FilePath:     viper.GetString("exporter.filePath"),
-		FileName:     viper.GetString("exporter.fileName"),
-		Initializers: viper.GetStringMapString("exporter.transformers"),
-		Dependencies: viper.GetStringMapString("exporter.repositories"),
-		Migrations:   viper.GetStringMapString("exporter.migrations"),
-	}
 	viper.Set("database.config", databaseConfig)
 }