forked from github/vulcanizer
/
setting.go
75 lines (58 loc) · 2.17 KB
/
setting.go
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package cli
import (
"fmt"
"os"
"github.com/spf13/cobra"
)
var settingToUpdate, valueToUpdate string
var removeValue bool
func init() {
cmdSettingUpdate.Flags().StringVarP(&settingToUpdate, "setting", "s", "", "Elasticsearch cluster setting to update (required)")
err := cmdSettingUpdate.MarkFlagRequired("setting")
if err != nil {
fmt.Printf("Error binding setting configuration flag: %s \n", err)
os.Exit(1)
}
cmdSettingUpdate.Flags().StringVarP(&valueToUpdate, "value", "v", "", "Value of the Elasticsearch cluster setting to update (can't be used with \"--remove\")")
cmdSettingUpdate.Flags().BoolVar(&removeValue, "remove", false, "Remove provided cluster setting, resetting it to default configuration (can't be used with \"--value|-v\")")
cmdSetting.AddCommand(cmdSettingUpdate)
rootCmd.AddCommand(cmdSetting)
}
var cmdSetting = &cobra.Command{
Use: "setting",
Short: "Interact with cluster settings.",
Long: `Use the subcommands to update cluster settings.`,
}
var cmdSettingUpdate = &cobra.Command{
Use: "update",
Short: "Update a cluster setting.",
Long: `This command will update the cluster's settings with the provided value.`,
Run: func(cmd *cobra.Command, args []string) {
if cmd.Flags().Changed("value") && cmd.Flags().Changed("remove") {
fmt.Println("Can't set both \"--value|-v\" and \"--remove\" options")
fmt.Print(cmd.UsageString())
os.Exit(1)
}
if !cmd.Flags().Changed("value") && !cmd.Flags().Changed("remove") {
fmt.Println("Error: requires one of \"--value|-v\" or \"--remove\"")
fmt.Print(cmd.UsageString())
os.Exit(1)
}
v := getClient()
var ptrValueToUpdate *string
if removeValue {
ptrValueToUpdate = nil
} else {
ptrValueToUpdate = &valueToUpdate
}
existingValue, newValue, err := v.SetClusterSetting(settingToUpdate, ptrValueToUpdate)
if err != nil {
fmt.Printf("Error when trying to update \"%s\" to \"%s\"\n", settingToUpdate, printableNil(ptrValueToUpdate))
fmt.Printf("Error is: %s\n", err)
os.Exit(1)
}
fmt.Printf("Updated setting %s\n", settingToUpdate)
fmt.Printf("\tOld value: %s\n", printableNil(existingValue))
fmt.Printf("\tNew value: %s\n", printableNil(newValue))
},
}