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[ci skip] Allow config file to set default values for flags

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This commit is contained in:
Ken Hibino
2020-01-19 08:40:51 -08:00
parent d37f2a09ab
commit 959c9fd01a
13 changed files with 106 additions and 29 deletions
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18
tools/asynqmon/cmd/root.go
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@@ -6,9 +6,10 @@ package cmd
import (
"fmt"
"github.com/spf13/cobra"
"os"
"github.com/spf13/cobra"
homedir "github.com/mitchellh/go-homedir"
"github.com/spf13/viper"
)
@@ -18,6 +19,7 @@ var cfgFile string
// Flags
var uri string
var db int
var password string
// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
@@ -31,9 +33,6 @@ Monitoring commands such as "stats" and "ls" can be used in conjunction with the
"watch" command to continuously run the command at a certain interval.
Example: watch -n 5 asynqmon stats`,
// 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.
@@ -48,13 +47,16 @@ func Execute() {
func init() {
cobra.OnInitialize(initConfig)
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.asynqmon.yaml)")
rootCmd.PersistentFlags().StringVarP(&uri, "uri", "u", "127.0.0.1:6379", "Redis server URI")
rootCmd.PersistentFlags().IntVarP(&db, "db", "n", 0, "Redis database number (default is 0)")
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file to set flag defaut values (default is $HOME/.asynqmon.yaml)")
rootCmd.PersistentFlags().StringVarP(&uri, "uri", "u", "127.0.0.1:6379", "redis server URI")
rootCmd.PersistentFlags().IntVarP(&db, "db", "n", 0, "redis database number (default is 0)")
rootCmd.PersistentFlags().StringVarP(&password, "password", "p", "", "password to use when connecting to redis server")
viper.BindPFlag("uri", rootCmd.PersistentFlags().Lookup("uri"))
viper.BindPFlag("db", rootCmd.PersistentFlags().Lookup("db"))
viper.BindPFlag("password", rootCmd.PersistentFlags().Lookup("password"))
}
// initConfig reads in config file and ENV variables if set.
// TODO(hibiken): Remove this if not necessary.
func initConfig() {
if cfgFile != "" {
// Use config file from the flag.