From b749d8bd34b7dfb22dbc7220d8f4a1532d7f5ccd Mon Sep 17 00:00:00 2001 From: Ken Hibino Date: Fri, 6 Dec 2019 06:51:55 -0800 Subject: [PATCH] Use cobra for tools --- go.mod | 10 +++ go.sum | 165 ++++++++++++++++++++++++++++++++++++ tools/asynqmon/cmd/root.go | 76 +++++++++++++++++ tools/asynqmon/cmd/stats.go | 66 +++++++++++++++ tools/asynqmon/main.go | 35 +------- 5 files changed, 319 insertions(+), 33 deletions(-) create mode 100644 tools/asynqmon/cmd/root.go create mode 100644 tools/asynqmon/cmd/stats.go diff --git a/go.mod b/go.mod index 1c06dec..17b28a5 100644 --- a/go.mod +++ b/go.mod @@ -7,5 +7,15 @@ require ( github.com/go-redis/redis/v7 v7.0.0-beta.4 github.com/google/go-cmp v0.3.1 github.com/google/uuid v1.1.1 + github.com/mitchellh/go-homedir v1.1.0 + github.com/pelletier/go-toml v1.6.0 // indirect + github.com/spf13/afero v1.2.2 // indirect + github.com/spf13/cobra v0.0.5 + github.com/spf13/jwalterweatherman v1.1.0 // indirect + github.com/spf13/pflag v1.0.5 // indirect + github.com/spf13/viper v1.6.0 go.uber.org/goleak v0.10.0 + golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e // indirect + golang.org/x/text v0.3.2 // indirect + gopkg.in/yaml.v2 v2.2.7 // indirect ) diff --git a/go.sum b/go.sum index 4371a1d..7aaa2ac 100644 --- a/go.sum +++ b/go.sum @@ -1,33 +1,198 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU= +github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= +github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= +github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8= +github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod 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"github.com/spf13/viper" +) + +var cfgFile string + +// rootCmd represents the base command when called without any subcommands +var rootCmd = &cobra.Command{ + Use: "asynqmon", + Short: "A monitoring tool for asynq queues", + Long: `TODO(hibiken): A longer description that spans multiple lines and likely contains +examples and usage of using your application. For example: + +Cobra is a CLI library for Go that empowers applications. +This application is a tool to generate the needed files +to quickly create a Cobra application.`, + // Uncomment the following line if your bare application + // has an action associated with it: + // Run: func(cmd *cobra.Command, args []string) { }, +} + +// Execute adds all child commands to the root command and sets flags appropriately. +// This is called by main.main(). It only needs to happen once to the rootCmd. +func Execute() { + if err := rootCmd.Execute(); err != nil { + fmt.Println(err) + os.Exit(1) + } +} + +func init() { + cobra.OnInitialize(initConfig) + + // Here you will define your flags and configuration settings. + // Cobra supports persistent flags, which, if defined here, + // will be global for your application. + + rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.asynqmon.yaml)") + + // Cobra also supports local flags, which will only run + // when this action is called directly. + rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle") +} + +// initConfig reads in config file and ENV variables if set. +func initConfig() { + if cfgFile != "" { + // Use config file from the flag. + viper.SetConfigFile(cfgFile) + } else { + // Find home directory. + home, err := homedir.Dir() + if err != nil { + fmt.Println(err) + os.Exit(1) + } + + // Search config in home directory with name ".asynqmon" (without extension). + viper.AddConfigPath(home) + viper.SetConfigName(".asynqmon") + } + + viper.AutomaticEnv() // read in environment variables that match + + // If a config file is found, read it in. + if err := viper.ReadInConfig(); err == nil { + fmt.Println("Using config file:", viper.ConfigFileUsed()) + } +} diff --git a/tools/asynqmon/cmd/stats.go b/tools/asynqmon/cmd/stats.go new file mode 100644 index 0000000..a202b62 --- /dev/null +++ b/tools/asynqmon/cmd/stats.go @@ -0,0 +1,66 @@ +package cmd + +import ( + "fmt" + "log" + "os" + "strings" + "text/tabwriter" + + "github.com/go-redis/redis/v7" + "github.com/hibiken/asynq/internal/rdb" + "github.com/spf13/cobra" +) + +// statsCmd represents the stats command +var statsCmd = &cobra.Command{ + Use: "stats", + Short: "Shows current state of the queues", + Long: `Stats command shows the number of tasks in each queue at that instant. + +To monitor the queues continuously, it's recommended that you run this +command in conjunction with the watch command. + +Example: watch -n 5 asynqmon stats`, + Run: func(cmd *cobra.Command, args []string) { + stats(cmd, args) + }, +} + +func init() { + rootCmd.AddCommand(statsCmd) + + // Here you will define your flags and configuration settings. + + // Cobra supports Persistent Flags which will work for this command + // and all subcommands, e.g.: + // statsCmd.PersistentFlags().String("foo", "", "A help for foo") + + // Cobra supports local flags which will only run when this command + // is called directly, e.g.: + // statsCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle") +} + +func stats(cmd *cobra.Command, args []string) { + 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() +} diff --git a/tools/asynqmon/main.go b/tools/asynqmon/main.go index b881c21..a4b0919 100644 --- a/tools/asynqmon/main.go +++ b/tools/asynqmon/main.go @@ -1,38 +1,7 @@ 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 +import "github.com/hibiken/asynq/tools/asynqmon/cmd" 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() + cmd.Execute() }