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