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unified_lint_runner_and_type_coverage_checker_for_nodejs_python.py
pythonGenerated for task: lint-and-validate: Automatic quality control, linting, and static analysis procedures. Use after eve
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unified_lint_runner_and_type_coverage_checker_for_nodejs_python.py
1# SKILL.md
2
3---
4name: lint-and-validate
5description: "Automatic quality control, linting, and static analysis procedures. Use after every code modification to ensure syntax correctness and project standards. Triggers onKeywords: lint, format, check, validate, types, static analysis."
6allowed-tools: Read, Glob, Grep, Bash
7---
8
9# Lint and Validate Skill
10
11> **MANDATORY:** Run appropriate validation tools after EVERY code change. Do not finish a task until the code is error-free.
12
13### Procedures by Ecosystem
14
15#### Node.js / TypeScript
161. **Lint/Fix:** `npm run lint` or `npx eslint "path" --fix`
172. **Types:** `npx tsc --noEmit`
183. **Security:** `npm audit --audit-level=high`
19
20#### Python
211. **Linter (Ruff):** `ruff check "path" --fix` (Fast & Modern)
222. **Security (Bandit):** `bandit -r "path" -ll`
233. **Types (MyPy):** `mypy "path"`
24
25## The Quality Loop
261. **Write/Edit Code**
272. **Run Audit:** `npm run lint && npx tsc --noEmit`
283. **Analyze Report:** Check the "FINAL AUDIT REPORT" section.
294. **Fix & Repeat:** Submitting code with "FINAL AUDIT" failures is NOT allowed.
30
31## Error Handling
32- If `lint` fails: Fix the style or syntax issues immediately.
33- If `tsc` fails: Correct type mismatches before proceeding.
34- If no tool is configured: Check the project root for `.eslintrc`, `tsconfig.json`, `pyproject.toml` and suggest creating one.
35
36---
37**Strict Rule:** No code should be committed or reported as "done" without passing these checks.
38
39---
40
41## Scripts
42
43| Script | Purpose | Command |
44|--------|---------|---------|
45| `scripts/lint_runner.py` | Unified lint check | `python scripts/lint_runner.py <project_path>` |
46| `scripts/type_coverage.py` | Type coverage analysis | `python scripts/type_coverage.py <project_path>` |
47
48
49
50
51# lint_runner.py
52
53```python
54#!/usr/bin/env python3
55"""
56Lint Runner - Unified linting and type checking
57Runs appropriate linters based on project type.
58
59Usage:
60 python lint_runner.py <project_path>
61
62Supports:
63 - Node.js: npm run lint, npx tsc --noEmit
64 - Python: ruff check, mypy
65"""
66
67import subprocess
68import sys
69import json
70from pathlib import Path
71from datetime import datetime
72
73# Fix Windows console encoding
74try:
75 sys.stdout.reconfigure(encoding='utf-8', errors='replace')
76except:
77 pass
78
79
80def detect_project_type(project_path: Path) -> dict:
81 """Detect project type and available linters."""
82 result = {
83 "type": "unknown",
84 "linters": []
85 }
86
87 # Node.js project
88 package_json = project_path / "package.json"
89 if package_json.exists():
90 result["type"] = "node"
91 try:
92 pkg = json.loads(package_json.read_text(encoding='utf-8'))
93 scripts = pkg.get("scripts", {})
94 deps = {**pkg.get("dependencies", {}), **pkg.get("devDependencies", {})}
95
96 # Check for lint script
97 if "lint" in scripts:
98 result["linters"].append({"name": "npm lint", "cmd": ["npm", "run", "lint"]})
99 elif "eslint" in deps:
100 result["linters"].append({"name": "eslint", "cmd": ["npx", "eslint", "."]})
101
102 # Check for TypeScript
103 if "typescript" in deps or (project_path / "tsconfig.json").exists():
104 result["linters"].append({"name": "tsc", "cmd": ["npx", "tsc", "--noEmit"]})
105
106 except:
107 pass
108
109 # Python project
110 if (project_path / "pyproject.toml").exists() or (project_path / "requirements.txt").exists():
111 result["type"] = "python"
112
113 # Check for ruff
114 result["linters"].append({"name": "ruff", "cmd": ["ruff", "check", "."]})
115
116 # Check for mypy
117 if (project_path / "mypy.ini").exists() or (project_path / "pyproject.toml").exists():
118 result["linters"].append({"name": "mypy", "cmd": ["mypy", "."]})
119
120 return result
121
122
123def run_linter(linter: dict, cwd: Path) -> dict:
124 """Run a single linter and return results."""
125 result = {
126 "name": linter["name"],
127 "passed": False,
128 "output": "",
129 "error": ""
130 }
131
132 try:
133 proc = subprocess.run(
134 linter["cmd"],
135 cwd=str(cwd),
136 capture_output=True,
137 text=True,
138 encoding='utf-8',
139 errors='replace',
140 timeout=120
141 )
142
143 result["output"] = proc.stdout[:2000] if proc.stdout else ""
144 result["error"] = proc.stderr[:500] if proc.stderr else ""
145 result["passed"] = proc.returncode == 0
146
147 except FileNotFoundError:
148 result["error"] = f"Command not found: {linter['cmd'][0]}"
149 except subprocess.TimeoutExpired:
150 result["error"] = "Timeout after 120s"
151 except Exception as e:
152 result["error"] = str(e)
153
154 return result
155
156
157def main():
158 project_path = Path(sys.argv[1] if len(sys.argv) > 1 else ".").resolve()
159
160 print(f"\n{'='*60}")
161 print(f"[LINT RUNNER] Unified Linting")
162 print(f"{'='*60}")
163 print(f"Project: {project_path}")
164 print(f"Time: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")
165
166 # Detect project type
167 project_info = detect_project_type(project_path)
168 print(f"Type: {project_info['type']}")
169 print(f"Linters: {len(project_info['linters'])}")
170 print("-"*60)
171
172 if not project_info["linters"]:
173 print("No linters found for this project type.")
174 output = {
175 "script": "lint_runner",
176 "project": str(project_path),
177 "type": project_info["type"],
178 "checks": [],
179 "passed": True,
180 "message": "No linters configured"
181 }
182 print(json.dumps(output, indent=2))
183 sys.exit(0)
184
185 # Run each linter
186 results = []
187 all_passed = True
188
189 for linter in project_info["linters"]:
190 print(f"\nRunning: {linter['name']}...")
191 result = run_linter(linter, project_path)
192 results.append(result)
193
194 if result["passed"]:
195 print(f" [PASS] {linter['name']}")
196 else:
197 print(f" [FAIL] {linter['name']}")
198 if result["error"]:
199 print(f" Error: {result['error'][:200]}")
200 all_passed = False
201
202 # Summary
203 print("\n" + "="*60)
204 print("SUMMARY")
205 print("="*60)
206
207 for r in results:
208 icon = "[PASS]" if r["passed"] else "[FAIL]"
209 print(f"{icon} {r['name']}")
210
211 output = {
212 "script": "lint_runner",
213 "project": str(project_path),
214 "type": project_info["type"],
215 "checks": results,
216 "passed": all_passed
217 }
218
219 print("\n" + json.dumps(output, indent=2))
220
221 sys.exit(0 if all_passed else 1)
222
223
224if __name__ == "__main__":
225 main()
226
227```
228
229
230# type_coverage.py
231
232```python
233#!/usr/bin/env python3
234"""
235Type Coverage Checker - Measures TypeScript/Python type coverage.
236Identifies untyped functions, any usage, and type safety issues.
237"""
238import sys
239import re
240import subprocess
241from pathlib import Path
242
243# Fix Windows console encoding for Unicode output
244try:
245 sys.stdout.reconfigure(encoding='utf-8', errors='replace')
246 sys.stderr.reconfigure(encoding='utf-8', errors='replace')
247except AttributeError:
248 pass # Python < 3.7
249
250def check_typescript_coverage(project_path: Path) -> dict:
251 """Check TypeScript type coverage."""
252 issues = []
253 passed = []
254 stats = {'any_count': 0, 'untyped_functions': 0, 'total_functions': 0}
255
256 ts_files = list(project_path.rglob("*.ts")) + list(project_path.rglob("*.tsx"))
257 ts_files = [f for f in ts_files if 'node_modules' not in str(f) and '.d.ts' not in str(f)]
258
259 if not ts_files:
260 return {'type': 'typescript', 'files': 0, 'passed': [], 'issues': ["[!] No TypeScript files found"], 'stats': stats}
261
262 for file_path in ts_files[:30]: # Limit
263 try:
264 content = file_path.read_text(encoding='utf-8', errors='ignore')
265
266 # Count 'any' usage
267 any_matches = re.findall(r':\s*any\b', content)
268 stats['any_count'] += len(any_matches)
269
270 # Find functions without return types
271 # function name(params) { - no return type
272 untyped = re.findall(r'function\s+\w+\s*\([^)]*\)\s*{', content)
273 # Arrow functions without types: const fn = (x) => or (x) =>
274 untyped += re.findall(r'=\s*\([^:)]*\)\s*=>', content)
275 stats['untyped_functions'] += len(untyped)
276
277 # Count typed functions
278 typed = re.findall(r'function\s+\w+\s*\([^)]*\)\s*:\s*\w+', content)
279 typed += re.findall(r':\s*\([^)]*\)\s*=>\s*\w+', content)
280 stats['total_functions'] += len(typed) + len(untyped)
281
282 except Exception:
283 continue
284
285 # Analyze results
286 if stats['any_count'] == 0:
287 passed.append("[OK] No 'any' types found")
288 elif stats['any_count'] <= 5:
289 issues.append(f"[!] {stats['any_count']} 'any' types found (acceptable)")
290 else:
291 issues.append(f"[X] {stats['any_count']} 'any' types found (too many)")
292
293 if stats['total_functions'] > 0:
294 typed_ratio = (stats['total_functions'] - stats['untyped_functions']) / stats['total_functions'] * 100
295 if typed_ratio >= 80:
296 passed.append(f"[OK] Type coverage: {typed_ratio:.0f}%")
297 elif typed_ratio >= 50:
298 issues.append(f"[!] Type coverage: {typed_ratio:.0f}% (improve)")
299 else:
300 issues.append(f"[X] Type coverage: {typed_ratio:.0f}% (too low)")
301
302 passed.append(f"[OK] Analyzed {len(ts_files)} TypeScript files")
303
304 return {'type': 'typescript', 'files': len(ts_files), 'passed': passed, 'issues': issues, 'stats': stats}
305
306def check_python_coverage(project_path: Path) -> dict:
307 """Check Python type hints coverage."""
308 issues = []
309 passed = []
310 stats = {'untyped_functions': 0, 'typed_functions': 0, 'any_count': 0}
311
312 py_files = list(project_path.rglob("*.py"))
313 py_files = [f for f in py_files if not any(x in str(f) for x in ['venv', '__pycache__', '.git', 'node_modules'])]
314
315 if not py_files:
316 return {'type': 'python', 'files': 0, 'passed': [], 'issues': ["[!] No Python files found"], 'stats': stats}
317
318 for file_path in py_files[:30]: # Limit
319 try:
320 content = file_path.read_text(encoding='utf-8', errors='ignore')
321
322 # Count Any usage
323 any_matches = re.findall(r':\s*Any\b', content)
324 stats['any_count'] += len(any_matches)
325
326 # Find functions with type hints
327 typed_funcs = re.findall(r'def\s+\w+\s*\([^)]*:[^)]+\)', content)
328 typed_funcs += re.findall(r'def\s+\w+\s*\([^)]*\)\s*->', content)
329 stats['typed_functions'] += len(typed_funcs)
330
331 # Find functions without type hints
332 all_funcs = re.findall(r'def\s+\w+\s*\(', content)
333 stats['untyped_functions'] += len(all_funcs) - len(typed_funcs)
334
335 except Exception:
336 continue
337
338 total = stats['typed_functions'] + stats['untyped_functions']
339
340 if total > 0:
341 typed_ratio = stats['typed_functions'] / total * 100
342 if typed_ratio >= 70:
343 passed.append(f"[OK] Type hints coverage: {typed_ratio:.0f}%")
344 elif typed_ratio >= 40:
345 issues.append(f"[!] Type hints coverage: {typed_ratio:.0f}%")
346 else:
347 issues.append(f"[X] Type hints coverage: {typed_ratio:.0f}% (add type hints)")
348
349 if stats['any_count'] == 0:
350 passed.append("[OK] No 'Any' types found")
351 elif stats['any_count'] <= 3:
352 issues.append(f"[!] {stats['any_count']} 'Any' types found")
353 else:
354 issues.append(f"[X] {stats['any_count']} 'Any' types found")
355
356 passed.append(f"[OK] Analyzed {len(py_files)} Python files")
357
358 return {'type': 'python', 'files': len(py_files), 'passed': passed, 'issues': issues, 'stats': stats}
359
360def main():
361 target = sys.argv[1] if len(sys.argv) > 1 else "."
362 project_path = Path(target)
363
364 print("\n" + "=" * 60)
365 print(" TYPE COVERAGE CHECKER")
366 print("=" * 60 + "\n")
367
368 results = []
369
370 # Check TypeScript
371 ts_result = check_typescript_coverage(project_path)
372 if ts_result['files'] > 0:
373 results.append(ts_result)
374
375 # Check Python
376 py_result = check_python_coverage(project_path)
377 if py_result['files'] > 0:
378 results.append(py_result)
379
380 if not results:
381 print("[!] No TypeScript or Python files found.")
382 sys.exit(0)
383
384 # Print results
385 critical_issues = 0
386 for result in results:
387 print(f"\n[{result['type'].upper()}]")
388 print("-" * 40)
389 for item in result['passed']:
390 print(f" {item}")
391 for item in result['issues']:
392 print(f" {item}")
393 if item.startswith("[X]"):
394 critical_issues += 1
395
396 print("\n" + "=" * 60)
397 if critical_issues == 0:
398 print("[OK] TYPE COVERAGE: ACCEPTABLE")
399 sys.exit(0)
400 else:
401 print(f"[X] TYPE COVERAGE: {critical_issues} critical issues")
402 sys.exit(1)
403
404if __name__ == "__main__":
405 main()
406
407```