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https://github.com/woodpecker-ci/woodpecker.git
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46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
// Copyright 2022 Woodpecker 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 utils
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import (
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"context"
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"fmt"
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"os"
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"os/signal"
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"syscall"
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)
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// Returns a copy of parent context that is canceled when
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// an os interrupt signal is received.
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func WithContextSigtermCallback(ctx context.Context, f func()) context.Context {
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ctx, cancel := context.WithCancelCause(ctx)
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go func() {
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receivedSignal := make(chan os.Signal, 1)
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signal.Notify(receivedSignal, syscall.SIGINT, syscall.SIGTERM)
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defer signal.Stop(receivedSignal)
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select {
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case <-ctx.Done():
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case <-receivedSignal:
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if f != nil {
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f()
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}
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cancel(fmt.Errorf("received signal: %v", receivedSignal))
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}
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}()
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return ctx
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}
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