Implement proper version command

cmd/buny-jabber-bot/main.go

@@ -5,8 +5,11 @@ import (
 	"fmt"
 	"os"
 	"os/signal"
+	"regexp"
 	"time"
 
+	_ "embed"
+
 	"buny-jabber-bot/internal/jabber"
 
 	"github.com/eleksir/go-xmpp"
@@ -14,8 +17,13 @@ import (
 	"gopkg.in/tomb.v2"
 )
 
+//go:embed version
+var version string
+
 // main - фактичеcки, начало и основное тело программы.
 func main() {
+	var err error
+
 	for {
 		var j = jabber.Jabber{ //nolint:exhaustruct
 			SigChan:        make(chan os.Signal, 1),
@@ -37,6 +45,8 @@ func main() {
 			os.Exit(1)
 		}
 
+		j.C.Version = version
+
 		// no panic
 		switch j.C.Loglevel {
 		case "fatal":
@@ -66,6 +76,23 @@ func main() {
 			log.SetOutput(logfile)
 		}
 
+		j.C.ExeName, err = os.Executable()
+
+		if err != nil {
+			log.Panicf("Unable to find my executable: %s", err)
+		}
+
+		// handle pricky windows case. But honestly i do not expect it runs on windows.
+		if regexp.MustCompile(".[Ee][Xx][Ee]$").MatchString(j.C.ExeName) {
+			j.C.ExeName = j.C.ExeName[:len(j.C.ExeName)-4]
+
+			if j.C.ExeName == "" {
+				j.C.ExeName = "buny-jabber-bot"
+			}
+		}
+
+		log.Infof("Service %s v%s starting", j.C.ExeName, j.C.Version)
+
 		myLogLevel := log.GetLevel()
 		log.Warnf("Loglevel set to %v", myLogLevel)
 

cmd/buny-jabber-bot/version

@@ -0,0 +1 @@
+0.1

internal/jabber/commands.go

@@ -30,9 +30,10 @@ func (j *Jabber) Cmd(v xmpp.Chat) error {
 		}
 
 		if chosenOneTalks {
-			answer = fmt.Sprintf("%sпомощь - этот список команд\n", j.C.CSign)
-			answer += fmt.Sprintf("%shelp   - this commands list\n", j.C.CSign)
-			answer += fmt.Sprintf("%srehash - reload white and black lists", j.C.CSign)
+			answer = fmt.Sprintf("%sпомощь       - этот список команд\n", j.C.CSign)
+			answer += fmt.Sprintf("%shelp         - this commands list\n", j.C.CSign)
+			answer += fmt.Sprintf("%srehash       - reload white and black lists (available to bot admins only)\n", j.C.CSign)
+			answer += fmt.Sprintf("%sver|%sversion - prints version of software", j.C.CSign, j.C.CSign)
 		} else {
 			answer = "Ничем помочь не могу. Луна не светит на тебя."
 		}
@@ -88,6 +89,13 @@ func (j *Jabber) Cmd(v xmpp.Chat) error {
 					v.Remote,
 				)
 
+				var msg xmpp.Chat
+				msg.Remote = v.Remote
+				msg.Type = v.Type
+				msg.Text = "Ничем помочь не могу. Луна не светит на тебя."
+
+				_, err := j.Talk.Send(msg)
+
 				return err
 			}
 
@@ -156,6 +164,13 @@ func (j *Jabber) Cmd(v xmpp.Chat) error {
 						v.Remote,
 					)
 
+					var msg xmpp.Chat
+					msg.Remote = v.Remote
+					msg.Type = v.Type
+					msg.Text = "Ничем помочь не могу. Луна не светит на тебя."
+
+					_, err := j.Talk.Send(msg)
+
 					return err
 				}
 
@@ -202,6 +217,29 @@ func (j *Jabber) Cmd(v xmpp.Chat) error {
 		}
 
 		return err
+	case v.Text == fmt.Sprintf("%sver", j.C.CSign) || v.Text == fmt.Sprintf("%sversion", j.C.CSign):
+		var (
+			answer = fmt.Sprintf("Version %s", j.C.Version)
+		)
+
+		dest := v.Remote
+
+		if v.Type == "groupchat" {
+			dest = (strings.SplitN(v.Remote, "/", 2))[0]
+		}
+
+		if _, err := j.Talk.Send(
+			xmpp.Chat{ //nolint:exhaustruct
+				Remote: dest,
+				Text:   strings.TrimSpace(answer),
+				Type:   v.Type,
+			},
+		); err != nil {
+			err = fmt.Errorf("unable to send message to %s: %w", v.Remote, err)
+
+			return err
+		}
+
 	default:
 		return err
 	}

internal/jabber/event_parser.go

@@ -121,8 +121,8 @@ func (j *Jabber) ParseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 
 					if id, err := j.Talk.IqVersionResponse(
 						v,
-						"buny-jabber-bot",
-						"1.dev",
+						j.C.ExeName,
+						j.C.Version,
 						(strings.SplitN(runtime.GOOS, "/", 2))[0],
 					); err != nil {
 						err := fmt.Errorf(

internal/jabber/types.go

@@ -58,6 +58,8 @@ type MyConfig struct {
 	CSign    string `json:"csign,omitempty"`
 	Loglevel string `json:"loglevel,omitempty"`
 	Log      string `json:"log,omitempty"`
+	Version  string `json:"version,omitempty"`
+	ExeName  string `json:"exe_name,omitempty"`
 }
 
 // MyWhiteList прототип структурки с белым списком jid-ов.