feat: support fs.exists async function #65
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WalkthroughThis pull request introduces a new file system utility function Changes
Sequence DiagramsequenceDiagram
participant Client
participant exists() as exists Function
participant fs as Node.js fs Module
Client->>exists(): Check file path
exists()->>fs: Call stat()
alt Path Exists
fs-->>exists(): Return Stats
exists()-->>Client: Return Stats
else Path Not Found
fs-->>exists(): Throw ENOENT Error
exists()-->>Client: Return false
else Other Error
fs-->>exists(): Throw Error
exists()->>Client: Rethrow Error
end
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Actionable comments posted: 0
🧹 Nitpick comments (3)
src/fs.ts (1)
4-7: Enhance documentation with security considerationsThe JSDoc comments should include:
- Warning about potential race conditions
- Note about path traversal risks
- Example usage
Consider expanding the documentation:
/** * Check if a file exists. * Returns the file stats if it exists, or `false` if it doesn't. + * + * @param file - The path to check + * @returns Promise<Stats | false> - Stats object if file exists, false otherwise + * + * @example + * ```ts + * const stats = await exists('./config.json'); + * if (stats && stats.isFile()) { + * // File exists and is a regular file + * } + * ``` + * + * @security This function may be subject to race conditions between check and usage. + * Ensure proper path sanitization to prevent path traversal attacks. */test/fs.test.ts (2)
5-6: Consider importing exists only onceThe file imports the same function twice through different paths.
import * as utility from '../src/index.js'; -import { exists } from '../src/index.js';
13-28: Enhance test coverageWhile the current tests cover basic functionality, consider adding tests for:
- Symlinks
- Permission denied errors
- Additional path traversal scenarios
- Unicode paths
Example additional test cases:
it('should handle symlinks', async () => { // Test both symlink to file and directory }); it('should handle permission errors', async () => { // Test accessing a file without proper permissions }); it('should handle special paths', async () => { // Test Unicode paths // Test relative path traversal attempts });
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📒 Files selected for processing (4)
README.md(1 hunks)src/fs.ts(1 hunks)src/index.ts(1 hunks)test/fs.test.ts(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- README.md
🔇 Additional comments (2)
src/index.ts (1)
12-12: LGTM!
The export statement follows the established pattern in the file and correctly exposes the new fs module.
src/fs.ts (1)
8-17: Consider adding path validation
The implementation correctly handles errors, but consider adding path validation to prevent path traversal attacks.
Let's check if there are any path validation utilities already in use:
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #65 +/- ##
==========================================
+ Coverage 99.11% 99.12% +0.01%
==========================================
Files 12 13 +1
Lines 899 917 +18
Branches 184 188 +4
==========================================
+ Hits 891 909 +18
Misses 8 8 ☔ View full report in Codecov by Sentry. |
[skip ci] ## [2.4.0](v2.3.0...v2.4.0) (2024-12-22) ### Features * support fs.exists async function ([#65](#65)) ([eb95f36](eb95f36))
Summary by CodeRabbit
New Features
README.mdto welcome pull requests.existsto check for file existence.fs.jsmodule.Tests
existsfunction, covering various scenarios including file existence checks and error handling.