restic/cmd/restic/cleanup.go

42 lines
1010 B
Go

package main
import (
"context"
"os"
"os/signal"
"syscall"
"github.com/restic/restic/internal/debug"
)
func createGlobalContext() context.Context {
ctx, cancel := context.WithCancel(context.Background())
ch := make(chan os.Signal, 1)
go cleanupHandler(ch, cancel)
signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
return ctx
}
// cleanupHandler handles the SIGINT and SIGTERM signals.
func cleanupHandler(c <-chan os.Signal, cancel context.CancelFunc) {
s := <-c
debug.Log("signal %v received, cleaning up", s)
Warnf("%ssignal %v received, cleaning up\n", clearLine(0), s)
if val, _ := os.LookupEnv("RESTIC_DEBUG_STACKTRACE_SIGINT"); val != "" {
_, _ = os.Stderr.WriteString("\n--- STACKTRACE START ---\n\n")
_, _ = os.Stderr.WriteString(debug.DumpStacktrace())
_, _ = os.Stderr.WriteString("\n--- STACKTRACE END ---\n")
}
cancel()
}
// Exit terminates the process with the given exit code.
func Exit(code int) {
debug.Log("exiting with status code %d", code)
os.Exit(code)
}