ewancroft.uk
my pkgs monorepo
1let cancelled = false;
2let sigintHandlerRegistered = false;
3
4/**
5 * Register the SIGINT handler (should be called early in the application)
6 */
7export function registerKillswitch(): void {
8 if (sigintHandlerRegistered) {
9 return;
10 }
11
12 // Flip the killswitch when the user hits CTRL-C
13 process.on('SIGINT', () => {
14 if (cancelled) {
15 // If already cancelled and user presses Ctrl+C again, force exit
16 console.log('\n\nForce quit detected. Exiting immediately...');
17 process.exit(1);
18 }
19
20 console.log('\n\n⚠️ Ctrl+C detected — stopping after current batch completes...');
21 console.log('Press Ctrl+C again to force quit immediately.\n');
22 cancelled = true;
23 });
24
25 sigintHandlerRegistered = true;
26}
27
28/**
29 * Manually cancel the import if needed.
30 */
31export function cancelImport() {
32 cancelled = true;
33}
34
35/**
36 * Check whether the import should stop.
37 * Call this inside loops, batch processors, etc.
38 */
39export function isImportCancelled(): boolean {
40 return cancelled;
41}