1. <?php
  3. /**
  4. * Normalizes environment variables for staging environments with dry-run mode.
  5. *
  6. * @param array $envVars An array of environment variables to normalize.
  7. * @param bool $dryRun Whether to only output the changes, not apply them.
  8. * @return array Normalized environment variables.
  9. */
  10. function normalizeEnvVars(array $envVars, bool $dryRun = false): array
  11. {
  12. $normalizedVars = [];
  14. foreach ($envVars as $key => $value) {
  15. // Normalize key to snake_case
  16. $normalizedKey = preg_replace('/(?<!^)(?=[A-Z])/', '_', strtolower($key));
  18. // Apply specific staging environment defaults/rules
  19. if ($normalizedKey === 'DATABASE_URL') {
  20. if ($dryRun) {
  21. echo "DRY RUN: Normalizing DATABASE_URL to staging_db_url\n";
  22. }
  23. $normalizedVars[$normalizedKey] = $_ENV['STAGING_DATABASE_URL'] ?? 'staging_db_url'; //Use STAGING_DATABASE_URL if defined, otherwise a default
  24. } elseif ($normalizedKey === 'API_KEY') {
  25. if ($dryRun) {
  26. echo "DRY RUN: Normalizing API_KEY to staging_api_key\n";
  27. }
  28. $normalizedVars[$normalizedKey] = $_ENV['STAGING_API_KEY'] ?? 'staging_api_key';
  29. } elseif ($normalizedKey === 'DEBUG') {
  30. if ($dryRun) {
  31. echo "DRY RUN: Normalizing DEBUG to false\n";
  32. }
  33. $normalizedVars[$normalizedKey] = false;
  34. } else {
  35. $normalizedVars[$normalizedKey] = $value; //Keep original value if no normalization needed
  36. }
  37. }
  39. if ($dryRun) {
  40. echo "DRY RUN: Would apply the following changes:\n";
  41. print_r($normalizedVars);
  42. } else {
  43. //Apply the normalized environment variables to the $_ENV superglobal
  44. foreach ($normalizedVars as $key => $value) {
  45. putenv($key . "=" . $value);
  46. }
  47. }
  49. return $normalizedVars;
  50. }
  52. //Example usage:
  53. // $envVars = [
  54. // 'DatabaseUrl' => 'Production_db_url',
  55. // 'APIKey' => 'Production_apiKey',
  56. // 'Debug' => 'true',
  57. // ];
  59. // $normalized = normalizeEnvVars($envVars, true); //Dry run
  60. // print_r($normalized);
  62. // normalizeEnvVars($envVars); //Apply changes
  63. ?>

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