version command; log resync and super node configs; fix logfile cli flag

cmd/resync.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/vulcanize/vulcanizedb/pkg/ipfs"
 	"github.com/vulcanize/vulcanizedb/pkg/super_node/resync"
+	v "github.com/vulcanize/vulcanizedb/version"
 )
 
 // resyncCmd represents the resync command
@@ -41,6 +42,8 @@ func rsyncCmdCommand() {
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}
+	logWithCommand.Infof("vdb version: %s", v.VersionWithMeta)
+	logWithCommand.Infof("resync config: %+v", rConfig)
 	if err := ipfs.InitIPFSPlugins(); err != nil {
 		logWithCommand.Fatal(err)
 	}

cmd/root.go

@@ -19,6 +19,7 @@ package cmd
 import (
 	"errors"
 	"fmt"
+	"os"
 	"strings"
 	"time"
 
@@ -69,11 +70,23 @@ func Execute() {
 
 func initFuncs(cmd *cobra.Command, args []string) {
 	setViperConfigs()
-	logLvlErr := logLevel()
-	if logLvlErr != nil {
-		log.Fatal("Could not set log level: ", logLvlErr)
+	logfile := viper.GetString("logfile")
+	if logfile != "" {
+		file, err := os.OpenFile(logfile,
+			os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
+		if err == nil {
+			log.Infof("Directing output to %s", logfile)
+			log.SetOutput(file)
+		} else {
+			log.SetOutput(os.Stdout)
+			log.Info("Failed to log to file, using default stdout")
+		}
+	} else {
+		log.SetOutput(os.Stdout)
+	}
+	if err := logLevel(); err != nil {
+		log.Fatal("Could not set log level: ", err)
 	}
-
 }
 
 func setViperConfigs() {
@@ -140,18 +153,13 @@ func init() {
 func initConfig() {
 	if cfgFile != "" {
 		viper.SetConfigFile(cfgFile)
+		if err := viper.ReadInConfig(); err == nil {
+			log.Printf("Using config file: %s", viper.ConfigFileUsed())
+		} else {
+			log.Fatal(fmt.Sprintf("Couldn't read config file: %s", err.Error()))
+		}
 	} else {
-		noConfigError := "No config file passed with --config flag"
-		fmt.Println("Error: ", noConfigError)
-		log.Fatal(noConfigError)
-	}
-
-	if err := viper.ReadInConfig(); err == nil {
-		log.Printf("Using config file: %s\n\n", viper.ConfigFileUsed())
-	} else {
-		invalidConfigError := "Couldn't read config file"
-		formattedError := fmt.Sprintf("%s: %s", invalidConfigError, err.Error())
-		log.Fatal(formattedError)
+		log.Warn("No config file passed with --config flag")
 	}
 }
 

cmd/superNode.go

@@ -27,6 +27,7 @@ import (
 	"github.com/vulcanize/vulcanizedb/pkg/ipfs"
 	"github.com/vulcanize/vulcanizedb/pkg/super_node"
 	"github.com/vulcanize/vulcanizedb/pkg/super_node/shared"
+	v "github.com/vulcanize/vulcanizedb/version"
 )
 
 // superNodeCmd represents the superNode command
@@ -56,6 +57,8 @@ func superNode() {
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}
+	logWithCommand.Infof("vdb version: %s", v.VersionWithMeta)
+	logWithCommand.Infof("super node config: %+v", superNodeConfig)
 	if err := ipfs.InitIPFSPlugins(); err != nil {
 		logWithCommand.Fatal(err)
 	}

cmd/version.go

@@ -0,0 +1,41 @@
+// Copyright © 2020 Vulcanize, Inc
+//
+// 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 (
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+
+	v "github.com/vulcanize/vulcanizedb/version"
+)
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Prints the version of vulcanizeDB",
+	Long: `Use this command to fetch the version of vulcanizeDB
+
+Usage: ./vulcanizedb version`,
+	Run: func(cmd *cobra.Command, args []string) {
+		subCommand = cmd.CalledAs()
+		logWithCommand = *log.WithField("SubCommand", subCommand)
+		logWithCommand.Infof("VulcanizeDB version: %s", v.VersionWithMeta)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}