Add rmq command to asynqmon

tools/asynqmon/cmd/rmq.go

@@ -0,0 +1,52 @@
+// Copyright 2020 Kentaro Hibino. All rights reserved.
+// Use of this source code is governed by a MIT license
+// that can be found in the LICENSE file.
+
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/go-redis/redis/v7"
+	"github.com/hibiken/asynq/internal/rdb"
+	"github.com/spf13/cobra"
+)
+
+// rmqCmd represents the rmq command
+var rmqCmd = &cobra.Command{
+	Use:   "rmq [queue name]",
+	Short: "Removes the specified queue",
+	Long: `Rmq (asynqmon rmq) will remove the specified queue.
+By default, it will remove the queue only if it's empty.
+Use --force option to override this behavior.
+
+Example: asynqmon rmq low -> Removes "low" queue`,
+	Args: cobra.ExactValidArgs(1),
+	Run:  rmq,
+}
+
+var rmqForce bool
+
+func init() {
+	rootCmd.AddCommand(rmqCmd)
+	rmqCmd.Flags().BoolVarP(&rmqForce, "force", "f", false, "Remove the queue regardless of its size")
+}
+
+func rmq(cmd *cobra.Command, args []string) {
+	c := redis.NewClient(&redis.Options{
+		Addr: uri,
+		DB:   db,
+	})
+	r := rdb.NewRDB(c)
+	err := r.RemoveQueue(args[0], rmqForce)
+	if err != nil {
+		if _, ok := err.(*rdb.ErrQueueNotEmpty); ok {
+			fmt.Printf("error: %v\nIf you are sure you want to delete it, run 'asynqmon rmq --force %s'\n", err, args[0])
+			os.Exit(1)
+		}
+		fmt.Printf("error: %v", err)
+		os.Exit(1)
+	}
+	fmt.Printf("Successfully removed queue %q\n", args[0])
+}