flag.go

// Copyright (c) 2016 Uber Technologies, Inc.
//
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// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
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// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// THE SOFTWARE.

package zap

import (
	"flag"

	"go.uber.org/zap/zapcore"
)

// LevelFlag defines a Level flag with specified name, default value and
// usage string. The return value is the address of a Level value that stores
// the value of the flag.
//
// Note that you can also use any non-nil *Level as a flag.Value.
func LevelFlag(name string, defaultLevel zapcore.Level, usage string) *zapcore.Level {
	lvl := defaultLevel
	flag.Var(&lvl, name, usage)
	return &lvl
}