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// Copyright 2015 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 osutil implements operating system-related utility functions.
package osutil
import (
"os"
"strings"
)
var (
// support to override setting SIG_DFL so tests don't terminate early
setDflSignal = dflSignal
)
func Unsetenv(key string) error {
envs := os.Environ()
os.Clearenv()
for _, e := range envs {
strs := strings.SplitN(e, "=", 2)
if strs[0] == key {
continue
}
if err := os.Setenv(strs[0], strs[1]); err != nil {
return err
}
}
return nil
}
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