feat: Parse args which are not flags

TODO.md

@@ -34,7 +34,7 @@
   - [ ] Colorize
   - [ ] Add different commands
 - [x] Add client transport options
-- [ ] Fix an issue while loading free form args, where the same records are being added twice
+- [x] Fix an issue while loading free form args, where the same records are being added twice
 
 ## Tests
 

cmd/cli.go

@@ -32,7 +32,7 @@ func main() {
 	f.StringSliceP("query", "q", []string{}, "Domain name to query")
 	f.StringSliceP("type", "t", []string{}, "Type of DNS record to be queried (A, AAAA, MX etc)")
 	f.StringSliceP("class", "c", []string{}, "Network class of the DNS record to be queried (IN, CH, HS etc)")
-	f.StringSliceP("nameservers", "n", []string{}, "Address of the nameserver to send packets to")
+	f.StringSliceP("nameserver", "n", []string{}, "Address of the nameserver to send packets to")
 
 	// Protocol Options
 	f.BoolP("udp", "U", false, "Use the DNS protocol over UDP")
@@ -57,6 +57,9 @@ func main() {
 		f.Usage()
 		hub.Logger.Exit(2)
 	}
+
+	hub.FreeArgs = f.Args()
+
 	// set log level
 	if k.Bool("debug") {
 		// Set logger level

cmd/hub.go

@@ -11,6 +11,7 @@ type Hub struct {
 	Logger     *logrus.Logger
 	Version    string
 	QueryFlags QueryFlags
+	FreeArgs   []string
 	Questions  []dns.Question
 	Resolver   resolvers.Resolver
 }
@@ -20,7 +21,7 @@ type QueryFlags struct {
 	QNames           []string `koanf:"query"`
 	QTypes           []string `koanf:"type"`
 	QClasses         []string `koanf:"class"`
-	Nameservers      []string `koanf:"namserver"`
+	Nameservers      []string `koanf:"nameserver"`
 	IsDOH            bool     `koanf:"doh"`
 	IsDOT            bool     `koanf:"dot"`
 	IsUDP            bool     `koanf:"udp"`

cmd/parse.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"os"
 	"strings"
 
 	"github.com/miekg/dns"
@@ -33,8 +32,7 @@ func (hub *Hub) loadQueryArgs() error {
 // options. In case an argument isn't able to fit in any of the existing
 // pattern it is considered to be a "query name".
 func (hub *Hub) loadFreeArgs() error {
-	args := os.Args[1:]
-	for _, arg := range args {
+	for _, arg := range hub.FreeArgs {
 		if strings.HasPrefix(arg, "--") || strings.HasPrefix(arg, "-") {
 			continue
 		}