feat: Add short output flag

Ref https://github.com/mr-karan/doggo/issues/35

TODO.md

@@ -62,7 +62,7 @@
 - [ ] Add tests for CLI Output.
 - [ ] Homebrew - Goreleaser
 - [ ] Add support for `dig +trace` like functionality.
-- [ ] Add `dig +x` short output
+- [ ] Add `dig +short` short output
 - [x] Add `--strategy` for picking nameservers.
 - [ ] Explore `dig.rc` kinda file
 - [x] Separate Authority/Answer in JSON output.

^

@@ -1 +0,0 @@
-nameserver 127.0.w0.1

cmd/doggo/cli.go

@@ -49,6 +49,7 @@ func main() {
 
 	// Output Options
 	f.BoolP("json", "J", false, "Set the output format as JSON")
+	f.Bool("short", false, "Short output format")
 	f.Bool("time", false, "Display how long it took for the response to arrive")
 	f.Bool("color", true, "Show colored output")
 	f.Bool("debug", false, "Enable debug mode")

cmd/doggo/help.go

@@ -56,6 +56,7 @@ var appHelpTextTemplate = `{{ "NAME" | color "" "heading" }}:
 
 {{ "Output Options" | color "" "heading" }}:
   {{"-J, --json " | color "yellow" ""}}                 Format the output as JSON.
+  {{"--short" | color "yellow" ""}}                     Short output format. Shows only the response section.
   {{"--color   " | color "yellow" ""}}                  Defaults to true. Set --color=false to disable colored output.
   {{"--debug " | color "yellow" ""}}                    Enable debug logging.
   {{"--time" | color "yellow" ""}}                      Shows how long the response took from the server.

internal/app/output.go

@@ -21,6 +21,14 @@ func (app *App) outputJSON(rsp []resolvers.Response) {
 	fmt.Printf("%s", res)
 }
 
+func (app *App) outputShort(rsp []resolvers.Response) {
+	for _, r := range rsp {
+		for _, a := range r.Answers {
+			fmt.Printf("%s\n", a.Address)
+		}
+	}
+}
+
 func (app *App) outputTerminal(rsp []resolvers.Response) {
 	var (
 		green   = color.New(color.FgGreen, color.Bold).SprintFunc()
@@ -134,6 +142,8 @@ func (app *App) outputTerminal(rsp []resolvers.Response) {
 func (app *App) Output(responses []resolvers.Response) {
 	if app.QueryFlags.ShowJSON {
 		app.outputJSON(responses)
+	} else if app.QueryFlags.ShortOutput {
+		app.outputShort(responses)
 	} else {
 		app.outputTerminal(responses)
 	}

pkg/models/models.go

@@ -33,6 +33,7 @@ type QueryFlags struct {
 	Color            bool          `koanf:"color" json:"-"`
 	DisplayTimeTaken bool          `koanf:"time" json:"-"`
 	ShowJSON         bool          `koanf:"json" json:"-"`
+	ShortOutput      bool          `koanf:"short" short:"-"`
 	UseSearchList    bool          `koanf:"search" json:"-"`
 	ReverseLookup    bool          `koanf:"reverse" reverse:"-"`
 	Strategy         string        `koanf:"strategy" strategy:"-"`