Change cmd dir to tools

tools/asynqmon/main.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"strings"
+	"text/tabwriter"
+
+	"github.com/go-redis/redis/v7"
+	"github.com/hibiken/asynq/internal/rdb"
+)
+
+// Example usage: watch -n5 asynqmon
+
+func main() {
+	c := redis.NewClient(&redis.Options{
+		Addr: "localhost:6379",
+		DB:   2,
+	})
+	r := rdb.NewRDB(c)
+
+	stats, err := r.CurrentStats()
+	if err != nil {
+		log.Fatal(err)
+	}
+	printStats(stats)
+	fmt.Println()
+}
+
+func printStats(s *rdb.Stats) {
+	format := strings.Repeat("%v\t", 5) + "\n"
+	tw := new(tabwriter.Writer).Init(os.Stdout, 0, 8, 2, ' ', 0)
+	fmt.Fprintf(tw, format, "Enqueued", "InProgress", "Scheduled", "Retry", "Dead")
+	fmt.Fprintf(tw, format, "--------", "----------", "---------", "-----", "----")
+	fmt.Fprintf(tw, format, s.Enqueued, s.InProgress, s.Scheduled, s.Retry, s.Dead)
+	tw.Flush()
+}