forked from etcd-io/etcd
/
ignored.go
41 lines (35 loc) · 1.19 KB
/
ignored.go
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// Copyright 2018 The etcd Authors
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package flags
import "go.uber.org/zap"
// IgnoredFlag encapsulates a flag that may have been previously valid but is
// now ignored. If an IgnoredFlag is set, a warning is printed and
// operation continues.
type IgnoredFlag struct {
lg *zap.Logger
Name string
}
// IsBoolFlag is defined to allow the flag to be defined without an argument
func (f *IgnoredFlag) IsBoolFlag() bool {
return true
}
func (f *IgnoredFlag) Set(s string) error {
if f.lg != nil {
f.lg.Warn("flag is no longer supported - ignoring", zap.String("flag-name", f.Name))
}
return nil
}
func (f *IgnoredFlag) String() string {
return ""
}