13dbe6e681
- CLAUDE.md: 97->63 lines, drop dev-commands and Don't duplicates already covered by .claude/rules/* - git-pr.md, deploy.md: replace gh CLI with Forgejo MCP/curl - code-reviewer.md: fix mcp__postgres__ -> mcp__postgres-gendesign__ - tech-analyst.md: sonnet -> haiku - deep-code-reviewer.md: 391->135 lines, phase details split into .claude/agents/deep-review-phases/ (loaded on demand) - qa-tester, code-reviewer, deep-code-reviewer: add memory: project - ui-ux.md: split into ui-tokens/ui-conventions/ui-microcopy - scripts/claude-hooks/check-no-print.py + PostToolUse hook - .gitignore: explicit list (git whitelist limitation)
94 lines
2.7 KiB
Python
94 lines
2.7 KiB
Python
#!/usr/bin/env python3
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"""
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Claude Code PostToolUse hook — blocks new `print(` calls in backend/**/*.py.
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Wired in `.claude/settings.json` hooks.PostToolUse with matcher "Edit|Write".
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Behavior:
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- Reads hook input as JSON from stdin (per Anthropic spec).
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- If tool is Edit/Write and file_path matches backend/**/*.py:
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- Scans new content for new `print(` calls.
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- Exits with code 2 to block (stderr is forwarded to Claude as feedback).
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- Otherwise exits 0 (no-op).
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Notes:
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- Allows `print(` inside lines containing `# noqa` (escape hatch).
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- Skips files under `backend/tests/**` (test code may use print for debugging).
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- Skips `backend/scripts/**` (one-off scripts).
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"""
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from __future__ import annotations
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import json
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import re
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import sys
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from pathlib import Path
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ALLOW_PATH_PREFIXES = (
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"backend/tests/",
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"backend/scripts/",
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)
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WATCH_PATH_PREFIX = "backend/"
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PRINT_RE = re.compile(r"(?<!\w)print\s*\(")
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def normalize_path(raw: str) -> str:
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"""Convert absolute/relative path to repo-relative POSIX-like form."""
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p = Path(raw).as_posix()
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# Try to strip everything up to the last "backend/" occurrence.
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idx = p.rfind("backend/")
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return p[idx:] if idx >= 0 else p
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def main() -> int:
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try:
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payload = json.load(sys.stdin)
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except Exception:
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# No input or malformed — skip silently.
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return 0
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tool_name = payload.get("tool_name") or payload.get("tool") or ""
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if tool_name not in {"Edit", "Write"}:
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return 0
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tool_input = payload.get("tool_input") or {}
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file_path = tool_input.get("file_path") or tool_input.get("path") or ""
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if not file_path:
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return 0
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norm = normalize_path(file_path)
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if not norm.startswith(WATCH_PATH_PREFIX):
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return 0
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if any(norm.startswith(p) for p in ALLOW_PATH_PREFIXES):
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return 0
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if not norm.endswith(".py"):
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return 0
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# Pull the new content. Edit gives `new_string`, Write gives `content`.
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new_text = tool_input.get("new_string") or tool_input.get("content") or ""
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if not new_text:
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return 0
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offenders: list[tuple[int, str]] = []
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for lineno, line in enumerate(new_text.splitlines(), start=1):
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if "# noqa" in line:
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continue
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if PRINT_RE.search(line):
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offenders.append((lineno, line.strip()))
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if not offenders:
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return 0
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sample = offenders[0]
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msg_lines = [
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f"Blocked: `print(` introduced in {norm}.",
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f"Line {sample[0]}: {sample[1][:120]}",
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"GenDesign convention: use `logger.info/warning/error` instead of print().",
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"If this is intentional one-off debug, add `# noqa` on the line and retry.",
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]
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print("\n".join(msg_lines), file=sys.stderr)
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return 2
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if __name__ == "__main__":
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sys.exit(main())
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