Opt: Deduplication of configuration during addition

Author: Driver-C

control/create/create.go

@@ -30,13 +30,16 @@ type Controller struct {
 func (cc Controller) ExecuteCreate() {
 	switch cc.createType {
 	case typeUsers:
-		cc.configuration.Main.Users = append(cc.configuration.Main.Users, cc.createContent)
+		cc.configuration.Main.Users = utils.RemoveDuplicate(
+			append(cc.configuration.Main.Users, cc.createContent))
 		cc.updateConfig()
 	case typePorts:
-		cc.configuration.Main.Ports = append(cc.configuration.Main.Ports, cc.createContent)
+		cc.configuration.Main.Ports = utils.RemoveDuplicate(
+			append(cc.configuration.Main.Ports, cc.createContent))
 		cc.updateConfig()
 	case typePasswords:
-		cc.configuration.Main.Passwords = append(cc.configuration.Main.Passwords, cc.createContent)
+		cc.configuration.Main.Passwords = utils.RemoveDuplicate(
+			append(cc.configuration.Main.Passwords, cc.createContent))
 		cc.updateConfig()
 	case typeCaches:
 		cc.createCaches()

utils/tools.go

@@ -23,3 +23,16 @@ func InterfaceSlice(slice interface{}) []interface{} {
 
 	return ret
 }
+
+func RemoveDuplicate(s []string) []string {
+	result := make([]string, 0, len(s))
+	temp := map[string]bool{}
+
+	for _, v := range s {
+		if !temp[v] {
+			temp[v] = true
+			result = append(result, v)
+		}
+	}
+	return result
+}