added flag and funcions to set default paths in the config file

cmd/action.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"fmt"
 	"git.sr.ht/~akilan1999/p2p-rendering-computation/client"
+	"git.sr.ht/~akilan1999/p2p-rendering-computation/config"
 	"git.sr.ht/~akilan1999/p2p-rendering-computation/p2p"
 	"git.sr.ht/~akilan1999/p2p-rendering-computation/server"
 	"github.com/urfave/cli/v2"
@@ -17,7 +18,6 @@ var CliAction = func(ctx *cli.Context) error {
 
 	//Listing servers and also updates IP tables (Default 3 hops)
 	if UpdateServerList {
-
 		err := client.UpdateIpTableListClient()
 		if err != nil {
 			fmt.Print(err)
@@ -67,6 +67,14 @@ var CliAction = func(ctx *cli.Context) error {
 		client.PrettyPrint(specs)
 	}
 
+	//Sets default paths to the config file
+	if SetDefaultConfig {
+		err := config.SetDefaults()
+		if err != nil {
+			fmt.Print(err)
+		}
+	}
+
 
 	return nil
 }

cmd/flags.go

@@ -15,6 +15,7 @@ var (
 	GPU              bool
 	UpdateServerList bool
 	ServerList       bool
+	SetDefaultConfig bool
 )
 
 var AppConfigFlags = []cli.Flag{
@@ -74,4 +75,10 @@ var AppConfigFlags = []cli.Flag{
 		EnvVars: []string{"SPECS"},
 		Destination: &Specs,
 	},
+	&cli.BoolFlag{
+		Name:        "SetDefaultConfig",
+		Usage:       "Sets a default configuration file",
+		EnvVars: []string{"SET_DEFAULT_CONFIG"},
+		Destination: &SetDefaultConfig,
+	},
 }

config/config.go

@@ -1,22 +1,21 @@
 package config
 
-import(
+import (
 	"github.com/spf13/viper"
+	"os"
 )
 
 var (
+	defaultPath string
 	defaults = map[string]interface{}{
-		"IPTable": "/etc/p2p-rendering/ip_table.json",
-		"DockerFile": "/home/akilan/Documents/p2prendering/p2p-redering-computation/server/docker/containers/docker-ubuntu-sshd/",
-		"SpeedTestFile":"/etc/p2p-rendering/50.bin",
-	}
+            "IPTable": "/etc/p2p-rendering/ip_table.json",
+            "DockerFile": "/home/akilan/Documents/p2prendering/p2p-redering-computation/server/docker/containers/docker-ubuntu-sshd/",
+            "SpeedTestFile":"/etc/p2p-rendering/50.bin",
+    }
 	configName = "config.json"
 	configType = "json"
 	configFile = "config.json"
-	configPaths = []string {
-		"/etc/p2p-rendering",
-		".",
-	}
+	configPaths []string
 )
 
 type Config struct {
@@ -25,6 +24,51 @@ type Config struct {
 	SpeedTestFile string
 }
 
+// Exists reports whether the named file or directory exists.
+func fileExists(name string) bool {
+	if _, err := os.Stat(name); err != nil {
+		if os.IsNotExist(err) {
+			return false
+		}
+	}
+	return true
+}
+
+// SetDefaults This function to be called only during a
+// make install
+func SetDefaults() error {
+	//Getting Current Directory
+	curDir, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+
+	//Setting current directory to default path
+	defaultPath = curDir + "/"
+
+	//Setting default paths for the config file
+	defaults["IPTable"] = defaultPath + "p2p/ip_table.json"
+	defaults["DockerFile"] = defaultPath + "server/docker/containers/docker-ubuntu-sshd/"
+	defaults["SpeedTestFile"] = defaultPath + "p2p/50.bin"
+
+	//Paths to search for config file
+	configPaths = append(configPaths, defaultPath)
+
+	if fileExists(defaultPath + "config.json") {
+		err := os.Remove(defaultPath + "config.json")
+		if err != nil {
+			return err
+		}
+	}
+
+	//Calling configuration file
+	_, err = ConfigInit()
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func ConfigInit()(*Config,error) {
 	//Sets default configuration to viper
 	for k,v := range defaults {