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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package main
import (
"fmt"
"os"
"path/filepath"
"reflect"
"strconv"
"github.com/spf13/cobra"
"github.com/algorand/go-algorand/cmd/util/datadir"
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/util/codecs"
)
var (
setParameterArg string
setValueArg string
)
func init() {
setCmd.Flags().StringVarP(&setParameterArg, "parameter", "p", "", "Parameter to update")
setCmd.Flags().StringVarP(&setValueArg, "value", "v", "", "Value to set")
setCmd.MarkFlagRequired("parameter")
setCmd.MarkFlagRequired("value")
rootCmd.AddCommand(setCmd)
}
var setCmd = &cobra.Command{
Use: "set",
Short: "Update the current value for the specified parameter",
Args: cobra.NoArgs,
Run: func(cmd *cobra.Command, _ []string) {
anyError := false
datadir.OnDataDirs(func(dataDir string) {
cfg, err := config.LoadConfigFromDisk(dataDir)
if err != nil && !os.IsNotExist(err) {
reportWarnf("Error loading config file from '%s' - %s", dataDir, err)
anyError = true
return
}
cfg, err = setObjectProperty(cfg, setParameterArg, setValueArg)
if err != nil {
reportWarnf("Error setting property '%s' -> %s - %s", setParameterArg, setValueArg, err)
anyError = true
return
}
file := filepath.Join(dataDir, config.ConfigFilename)
err = codecs.SaveNonDefaultValuesToFile(file, cfg, config.GetDefaultLocal(), nil)
if err != nil {
reportWarnf("Error saving updated config file '%s' - %s", file, err)
anyError = true
return
}
})
if anyError {
os.Exit(1)
}
},
}
func setObjectProperty(object config.Local, property string, value string) (config.Local, error) {
v := reflect.ValueOf(&object)
f := v.Elem().FieldByName(property)
if !f.IsValid() {
return object, fmt.Errorf("unknown property named '%s'", property)
}
err := setFieldValue(f, value)
return object, err
}
func setFieldValue(field reflect.Value, value string) error {
switch k := field.Kind(); k {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
val, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
// NOTE: We do not enforce bitsize
field.SetInt(val)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
val, err := strconv.ParseUint(value, 10, 64)
if err != nil {
return err
}
// NOTE: We do not enforce bitsize
field.SetUint(val)
case reflect.String:
field.SetString(value)
case reflect.Float32, reflect.Float64:
val, err := strconv.ParseFloat(value, 64)
if err != nil {
return err
}
// NOTE: We do not enforce bitsize
field.SetFloat(val)
case reflect.Bool:
switch value {
case "t", "true", "True", "TRUE", "1":
field.SetBool(true)
case "f", "false", "False", "FALSE", "0":
field.SetBool(false)
default:
return fmt.Errorf("could not parse value %#v as bool", value)
}
default:
return fmt.Errorf("unsupported parameter type '%s' - unable to set value", k)
}
return nil
}
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