export function setupCleanupOnExit(cssPath: string) {
  if (!hasSetupCleanupOnExit){
    process.on('SIGINT', () => {
      console.log('Exiting, running CSS cleanup');

      exec(`rm -r ${cssPath}`, function(error) {
        if (error) {
          console.error(error);
          process.exit(1);
        }

        console.log('Deleted CSS files');
      });
    });

    hasSetupCleanupOnExit = true;
  }
}
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.