1. const fs = require('fs');
  2. const path = require('path');
  4. /**
  5. * Strips metadata from log files.
  6. * @param {string} filePath - The path to the log file.
  7. * @param {string} outputFilePath - The path to save the metadata-stripped log file.
  8. */
  9. function stripMetadata(filePath, outputFilePath) {
  10. try {
  11. const fileContent = fs.readFileSync(filePath, 'utf8');
  12. let cleanedContent = '';
  14. // Simple metadata removal: Remove lines starting with common metadata prefixes.
  15. const metadataPrefixes = ['#', '[', '{', ' ', ' ', ' ', ' ', ' ']; // Add more prefixes as needed.
  16. const lines = fileContent.split('\n');
  18. for (const line of lines) {
  19. let isMetadata = false;
  20. for (const prefix of metadataPrefixes) {
  21. if (line.startsWith(prefix)) {
  22. isMetadata = true;
  23. break;
  24. }
  25. }
  26. if (!isMetadata) {
  27. cleanedContent += line + '\n';
  28. }
  29. }
  31. fs.writeFileSync(outputFilePath, cleanedContent, 'utf8');
  32. console.log(`Metadata stripped from ${filePath} and saved to ${outputFilePath}`);
  34. } catch (error) {
  35. console.error(`Error processing ${filePath}: ${error.message}`);
  36. }
  37. }
  39. module.exports = stripMetadata;

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