forked from tikv/pd
/
config_command.go
124 lines (112 loc) · 2.97 KB
/
config_command.go
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// Copyright 2016 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package command
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"strconv"
"github.com/spf13/cobra"
)
var (
configPrefix = "pd/api/v1/config"
schedulePrefix = "pd/api/v1/config/schedule"
replicatePrefix = "pd/api/v1/config/replicate"
)
// NewConfigCommand return a config subcommand of rootCmd
func NewConfigCommand() *cobra.Command {
conf := &cobra.Command{
Use: "config <subcommand>",
Short: "tune pd configs",
}
conf.AddCommand(NewShowConfigCommand())
conf.AddCommand(NewSetConfigCommand())
return conf
}
// NewShowConfigCommand return a show subcommand of configCmd
func NewShowConfigCommand() *cobra.Command {
sc := &cobra.Command{
Use: "show",
Short: "show config of PD",
Run: showConfigCommandFunc,
}
sc.AddCommand(NewShowAllConfigCommand())
return sc
}
// NewShowAllConfigCommand return a show all subcommand of show subcommand
func NewShowAllConfigCommand() *cobra.Command {
sc := &cobra.Command{
Use: "all",
Short: "show all config of PD",
Run: showAllConfigCommandFunc,
}
return sc
}
// NewSetConfigCommand return a set subcommand of configCmd
func NewSetConfigCommand() *cobra.Command {
sc := &cobra.Command{
Use: "set <option> <value>",
Short: "set the option with value",
Run: setConfigCommandFunc,
}
return sc
}
func showConfigCommandFunc(cmd *cobra.Command, args []string) {
r, err := doRequest(cmd, schedulePrefix, http.MethodGet)
if err != nil {
fmt.Printf("Failed to get config: %s\n", err)
return
}
fmt.Println(r)
}
func showAllConfigCommandFunc(cmd *cobra.Command, args []string) {
r, err := doRequest(cmd, configPrefix, http.MethodGet)
if err != nil {
fmt.Printf("Failed to get config: %s\n", err)
return
}
fmt.Println(r)
}
func postConfigDataWithPath(cmd *cobra.Command, key, value, path string) error {
var val interface{}
data := make(map[string]interface{})
val, err := strconv.ParseFloat(value, 64)
if err != nil {
val = value
}
data[key] = val
reqData, err := json.Marshal(data)
req, err := getRequest(cmd, path, http.MethodPost, "application/json", bytes.NewBuffer(reqData))
if err != nil {
return err
}
_, err = dail(req)
if err != nil {
return err
}
return nil
}
func setConfigCommandFunc(cmd *cobra.Command, args []string) {
if len(args) != 2 {
fmt.Println(cmd.UsageString())
return
}
opt, val := args[0], args[1]
err := postConfigDataWithPath(cmd, opt, val, configPrefix)
if err != nil {
fmt.Printf("Failed to set config: %s\n", err)
return
}
fmt.Println("Success!")
}