tools/src/utils/context.go

// Copyright 2023 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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package utils

import (
	"context"
	"fmt"
	"os"
	"os/signal"
	"syscall"
)

// CancelOnInterruptContext returns a context that's cancelled if the process receives a SIGINT or
// SIGTERM interrupt.
func CancelOnInterruptContext(ctx context.Context) context.Context {
	ctx, cancel := context.WithCancel(context.Background())
	sigs := make(chan os.Signal, 1)
	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
	go func() {
		sig := <-sigs
		fmt.Printf("Signal received: %v\n", sig)
		cancel()
	}()
	return ctx
}