Zimeng Xiong
87 lines
3.1 KiB
JavaScript
87 lines
3.1 KiB
JavaScript
/**
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* Quick validation of async file operations fix
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* This checks that all synchronous operations have been converted
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*/
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const fs = require('fs');
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const path = require('path');
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const backendFile = path.join(__dirname, 'backend', 'src', 'index.ts');
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// Read the backend file
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const content = fs.readFileSync(backendFile, 'utf8');
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// Check for any remaining synchronous file operations
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const syncPatterns = [
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{ pattern: /fs\.(read|write|open|rename|copy|unlink|mkdir)Sync/g, name: 'Synchronous file operations' },
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{ pattern: /existsSync/g, name: 'existsSync calls' }
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];
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console.log('=== Async File Operations Fix Validation ===\n');
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let issues = [];
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let conversions = [];
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syncPatterns.forEach(({ pattern, name }) => {
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const matches = content.match(pattern);
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if (matches) {
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console.log(`❌ Found ${matches.length} ${name}:`);
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matches.forEach((match, index) => {
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console.log(` ${index + 1}. ${match}`);
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});
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issues.push({ type: name, count: matches.length, matches });
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} else {
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console.log(`✅ No ${name} found`);
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}
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});
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// Check for async operations that were added
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const asyncPatterns = [
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{ pattern: /fsPromises\.(rename|copyFile|access|unlink|mkdir)/g, name: 'Async file operations' },
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{ pattern: /await removeFileIfExists/g, name: 'Async file cleanup calls' }
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];
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asyncPatterns.forEach(({ pattern, name }) => {
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const matches = content.match(pattern);
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if (matches) {
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console.log(`✅ Found ${matches.length} ${name}`);
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conversions.push({ type: name, count: matches.length });
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}
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});
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// Check for proper error handling
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const errorHandlingMatches = content.match(/try\s*{[\s\S]*?catch\s*\(/g);
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if (errorHandlingMatches) {
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console.log(`✅ Found ${errorHandlingMatches.length} try-catch blocks for error handling`);
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}
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// Summary
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console.log('\n=== Summary ===');
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if (issues.length === 0) {
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console.log('✅ All synchronous file operations have been successfully converted to async!');
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console.log('✅ The Node.js event loop will no longer be blocked during file operations');
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console.log('✅ Large database uploads (50MB+) will not freeze the application');
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console.log('✅ Health checks and WebSocket connections will remain responsive');
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} else {
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console.log('⚠️ Some synchronous operations still exist:');
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issues.forEach(issue => {
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console.log(` - ${issue.type}: ${issue.count} instances`);
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});
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}
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console.log('\n=== Performance Impact ===');
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console.log('Before: fs.renameSync() blocked event loop for entire file operation');
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console.log('After: await fsPromises.rename() allows event loop to process other requests');
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console.log('Before: fs.copyFileSync() blocked during database backup');
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console.log('After: await fsPromises.copyFile() enables concurrent request processing');
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console.log('Before: fs.unlinkSync() blocked during cleanup');
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console.log('After: await fsPromises.unlink() allows responsive error handling');
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// Export result for programmatic use
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module.exports = {
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success: issues.length === 0,
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issues,
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conversions,
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totalSyncOperationsRemoved: issues.reduce((sum, issue) => sum + issue.count, 0),
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totalAsyncOperationsAdded: conversions.reduce((sum, conv) => sum + conv.count, 0)
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}; |