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asynq/tools/asynqmon/cmd/cancel.go
2020-02-13 06:23:51 -08:00

54 lines
1.4 KiB
Go

// 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"
"github.com/spf13/viper"
)
// cancelCmd represents the cancel command
var cancelCmd = &cobra.Command{
Use: "cancel [task id]",
Short: "Sends a cancelation signal to the goroutine processing the specified task",
Long: `Cancel (asynqmon cancel) will send a cancelation signal to the goroutine processing
the specified task.
The command takes one argument which specifies the task to cancel.
The task should be in in-progress state.
Identifier for a task should be obtained by running "asynqmon ls" command.
Handler implementation needs to be context aware for cancelation signal to
actually cancel the processing.
Example: asynqmon cancel bnogo8gt6toe23vhef0g`,
Args: cobra.ExactArgs(1),
Run: cancel,
}
func init() {
rootCmd.AddCommand(cancelCmd)
}
func cancel(cmd *cobra.Command, args []string) {
r := rdb.NewRDB(redis.NewClient(&redis.Options{
Addr: viper.GetString("uri"),
DB: viper.GetInt("db"),
Password: viper.GetString("password"),
}))
err := r.PublishCancelation(args[0])
if err != nil {
fmt.Printf("could not send cancelation signal: %v\n", err)
os.Exit(1)
}
fmt.Printf("Successfully sent cancelation siganl for task %s\n", args[0])
}