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55 lines
1.8 KiB
55 lines
1.8 KiB
// Copyright © 2024 OpenIM. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package flag
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import (
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"flag"
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"log"
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"strings"
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"github.com/spf13/pflag"
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)
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// WordSepNormalizeFunc changes all flags that contain "_" separators.
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func WordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
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if strings.Contains(name, "_") {
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return pflag.NormalizedName(strings.ReplaceAll(name, "_", "-"))
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}
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return pflag.NormalizedName(name)
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}
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// WarnWordSepNormalizeFunc changes and warns for flags that contain "_" separators.
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func WarnWordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
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if strings.Contains(name, "_") {
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normalizedName := strings.ReplaceAll(name, "_", "-")
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log.Printf("WARNING: flag %s has been deprecated and will be removed in a future version. Use %s instead.", name, normalizedName)
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return pflag.NormalizedName(normalizedName)
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}
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return pflag.NormalizedName(name)
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}
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// InitFlags normalizes, parses, then logs the command line flags.
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func InitFlags() {
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pflag.CommandLine.SetNormalizeFunc(WordSepNormalizeFunc)
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pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
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}
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// PrintFlags logs the flags in the flagset.
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func PrintFlags(flags *pflag.FlagSet) {
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flags.VisitAll(func(flag *pflag.Flag) {
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log.Printf("FLAG: --%s=%q", flag.Name, flag.Value)
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})
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}
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