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flag.go
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flag.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2020 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package flag
import (
"strings"
"fmt"
"tkestack.io/image-transfer/pkg/log"
"github.com/spf13/pflag"
)
// WordSepNormalizeFunc changes all flags that contain "_" separators
func WordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
if strings.Contains(name, "_") {
return pflag.NormalizedName(strings.Replace(name, "_", "-", -1))
}
return pflag.NormalizedName(name)
}
// WarnWordSepNormalizeFunc changes and warns for flags that contain "_" separators
func WarnWordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
if strings.Contains(name, "_") {
normalizedName := strings.Replace(name, "_", "-", -1)
log.Warn(fmt.Sprintf("%s is DEPRECATED and will be removed" +
" in a future version. Use %s instead.", name, normalizedName))
return pflag.NormalizedName(normalizedName)
}
return pflag.NormalizedName(name)
}
// InitFlags normalizes, parses, then logs the command line flags
func InitFlags() {
pflag.CommandLine.SetNormalizeFunc(WordSepNormalizeFunc)
}
// PrintFlags logs the flags in the flagset
func PrintFlags(flags *pflag.FlagSet) {
flags.VisitAll(func(flag *pflag.Flag) {
log.Debug("Flag value has been parsed", log.Any(flag.Name, flag.Value))
})
}