Fix lint errors

.golangci.yml

@@ -0,0 +1,4 @@
+---
+linters:
+  disable:
+    - errcheck

bot/bot.go

@@ -72,7 +72,9 @@ func (b *Bot) RegisterHandlers() {
 func Run() error {
 	setupConfig()
 
-	lib.SeedMathRand()
+	if err := lib.SeedMathRand(); err != nil {
+		log.Warn(err)
+	}
 
 	if C.DiscordToken == "" {
 		log.Fatalf("Discord token is not set")
@@ -99,7 +101,7 @@ func Run() error {
 	defer dg.Close()
 
 	sc := make(chan os.Signal, 1)
-	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt, os.Kill)
+	signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM)
 	<-sc
 
 	log.Info("Shutting down")

bot/command.go

@@ -77,7 +77,9 @@ func (b *Bot) CommandHandler() func(*discordgo.Session, *discordgo.MessageCreate
 			cmd.Config = b.Config
 
 			log.Debugf("command: %v, args: %v, nargs: %d", cmd.Name, args, len(args))
-			cmd.Func(args, m)
+			if err := cmd.Func(args, m); err != nil {
+				log.Errorf("failed to execute command: %s", err)
+			}
 
 			return
 		}

bot/deal.go

@@ -75,9 +75,7 @@ func (b *Bot) DealCommand() CommandFunc {
 }
 
 func JoinCards(h []Card, sep string) string {
-	var b []string
-
-	b = make([]string, len(h))
+	b := make([]string, len(h))
 
 	for i, v := range h {
 		b[i] = string(v)

bot/roulette.go

@@ -36,7 +36,7 @@ func (g *Gun) Load(n int) {
 	g.N = 0
 	for i := 1; i <= n; {
 		x := lib.RandInt(0, len(g.C)-1)
-		if g.C[x] == false {
+		if !g.C[x] {
 			g.C[x] = true
 			i++
 		} else {
@@ -58,7 +58,7 @@ func (g *Gun) Fire() bool {
 
 func (g *Gun) IsEmpty() bool {
 	for _, v := range g.C {
-		if v == true {
+		if v {
 			return false
 		}
 	}

lib/common.go

@@ -17,9 +17,7 @@ func Contains[T comparable](s []T, v T) bool {
 }
 
 func JoinInt(a []int, sep string) string {
-	var b []string
-
-	b = make([]string, len(a))
+	b := make([]string, len(a))
 
 	for i, v := range a {
 		b[i] = strconv.Itoa(v)
@@ -37,11 +35,7 @@ func SumInt(a []int) int {
 }
 
 func Itob(v int) bool {
-	if v == 1 {
-		return true
-	}
-
-	return false
+	return v == 1
 }
 
 func BuildURI(rawuri, rawpath string) string {