mirror of
https://github.com/catlog22/Claude-Code-Workflow.git
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154a9283b5
- Introduced `help-i18n.js` for managing translations in Chinese and English for the help view. - Created `help.js` to render the help view, including command categories, workflow diagrams, and CodexLens quick-start. - Implemented search functionality with debounce for command filtering. - Added workflow diagram rendering with Cytoscape.js integration. - Developed tests for write-file verification, ensuring proper handling of small and large JSON files.
78 lines
2.5 KiB
Markdown
78 lines
2.5 KiB
Markdown
# Write File Verification Enhancement
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## Problem
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`ccw/src/tools/write-file.ts` would return success messages claiming files were created, but in some cases (especially with long JSON files), the files were not actually written to disk.
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## Root Cause
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The write operation used `writeFileSync()` but **did not verify** that the file was successfully created afterward. In edge cases (file system issues, permission problems, disk space, etc.), the write could fail silently without proper error detection.
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## Solution
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Added comprehensive post-write verification in three layers:
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### 1. File Existence Check
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```typescript
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if (!existsSync(filePath)) {
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return `File verification failed: file does not exist at ${filePath}`;
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}
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```
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### 2. File Size Verification
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```typescript
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const stats = statSync(filePath);
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if (stats.size !== expectedBytes) {
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return `File verification failed: size mismatch (expected ${expectedBytes}B, actual ${stats.size}B)`;
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}
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```
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### 3. Content Read-Back Verification
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```typescript
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const readContent = readFileSync(filePath, { encoding });
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const actualBytes = Buffer.byteLength(readContent, encoding);
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if (actualBytes !== expectedBytes) {
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return `File verification failed: content size mismatch after read`;
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}
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```
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## Changes Made
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### File: `ccw/src/tools/write-file.ts`
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1. **Added import**: `statSync` from 'fs' (line 13)
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2. **Added function**: `verifyFileWrite()` (lines 69-100) - Three-layer verification
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3. **Modified handler**: Added verification call after write (lines 188-195)
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4. **Enhanced messages**: All success messages now include "- verified" suffix
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### Test Coverage: `ccw/tests/write-file-verification.test.js`
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Created comprehensive test suite covering:
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- Small file writes
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- Large JSON files (>100KB)
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- Very large JSON files (>1MB)
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- Verification failure detection
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- Multiple encoding support
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## Test Results
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```
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tests 5
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pass 5
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fail 0
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Test execution times:
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- Small file: 3.7ms
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- Large JSON (>100KB): 46.8ms
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- Very large JSON (>1MB): 119ms
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```
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## Benefits
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1. **Reliability**: Files are guaranteed to exist and be complete
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2. **Error Detection**: Catches silent write failures immediately
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3. **Debugging**: Clear error messages indicate exact failure point
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4. **Long JSON Safety**: Special protection for large file writes
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5. **User Trust**: "verified" suffix confirms write success
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## Backward Compatibility
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✅ Fully backward compatible - all existing functionality preserved
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✅ Only adds verification step, no breaking changes
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✅ Minimal performance impact (ms range even for MB files)
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