1. /**
  2. * Extracts CLI arguments and configures the application.
  3. * @param {string[]} args - Array of command-line arguments.
  4. */
  5. function loadConfigFromArgs(args) {
  6. // Default configuration values
  7. const config = {
  8. logLevel: 'info',
  9. dataFilePath: 'default_data.txt',
  10. threshold: 0.5,
  11. verbose: false
  12. };
  14. // Parse command-line arguments
  15. for (let i = 0; i < args.length; i++) {
  16. const arg = args[i];
  18. if (arg === '-l' || arg === '--log-level') {
  19. if (i + 1 < args.length) {
  20. config.logLevel = args[i + 1].toLowerCase();
  21. i++; // Skip the value
  22. } else {
  23. console.error('Error: -l/--log-level requires a value.');
  24. return; // Exit if missing value
  25. }
  26. } else if (arg === '-d' || arg === '--data-file') {
  27. if (i + 1 < args.length) {
  28. config.dataFilePath = args[i + 1];
  29. i++; // Skip the value
  30. } else {
  31. console.error('Error: -d/--data-file requires a value.');
  32. return; // Exit if missing value
  33. }
  34. } else if (arg === '-t' || arg === '--threshold') {
  35. if (i + 1 < args.length) {
  36. config.threshold = parseFloat(args[i + 1]);
  37. i++; // Skip the value
  38. } else {
  39. console.error('Error: -t/--threshold requires a value.');
  40. return;
  41. }
  42. } else if (arg === '-v' || arg === '--verbose') {
  43. config.verbose = true;
  44. } else {
  45. console.warn(`Unknown argument: ${arg}`);
  46. }
  47. }
  49. // Log the configuration
  50. console.log('Loaded configuration:', config);
  51. return config;
  52. }
  54. // Example usage (assuming 'process.argv' is available)
  55. // const args = process.argv.slice(2); // Remove Node.js executable path and script path
  56. // const config = loadConfigFromArgs(args);

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