repo-manager/src/repo_manager/prefix_registry.py
tegwick 04145a59d9 feat: model repo standards and detect prefix collisions
Implement RMGR-WP-0004 T01 (flavor, required files, anti-patterns from
canon) and T08 (prefix ownership registry plus uniqueness scan).
rmgr conform and rmgr prefix-uniqueness are detection only.
2026-08-18 13:28:40 +02:00

112 lines
3.7 KiB
Python

"""Fleet workplan-prefix ownership and uniqueness (RMGR-WP-0004-T08)."""
from __future__ import annotations
from collections import defaultdict
from pathlib import Path
from typing import Any
import yaml
from repo_manager.standards import FLAVOR_MARKER_PREFIX, workplan_ids
DEFAULT_REGISTRY = Path(__file__).resolve().parents[2] / "config" / "workplan-prefix-registry.yaml"
def load_registry(path: Path | None = None) -> dict[str, Any]:
target = path or DEFAULT_REGISTRY
data = yaml.safe_load(target.read_text(encoding="utf-8")) or {}
if not isinstance(data, dict):
return {}
return data
def _skip_dir(name: str) -> bool:
return name.startswith(".") or name in {
"node_modules",
"__pycache__",
".venv",
"venv",
"archive",
}
def iter_repo_roots(root: Path) -> list[Path]:
root = root.resolve()
if (root / "workplans").is_dir() and (root / ".git").exists():
return [root]
found: list[Path] = []
if not root.is_dir():
return found
for child in sorted(root.iterdir()):
if not child.is_dir() or _skip_dir(child.name):
continue
if (child / "workplans").is_dir():
found.append(child)
return found
def scan_prefixes(root: Path, *, registry_path: Path | None = None) -> dict[str, Any]:
"""Detect prefix sharing, identifier reuse, flavor-derived prefixes, number reuse.
Detection only. Does not rewrite files or remediations.
"""
registry = load_registry(registry_path)
owners = {str(k): str(v) for k, v in (registry.get("owners") or {}).items()}
retired = {str(item.get("prefix")) for item in registry.get("retired") or [] if item.get("prefix")}
by_prefix: dict[str, set[str]] = defaultdict(set)
by_id: dict[str, list[tuple[str, str]]] = defaultdict(list)
numbers: dict[tuple[str, str], list[str]] = defaultdict(list)
repos_scanned = []
for repo in iter_repo_roots(root):
repos_scanned.append(repo.name)
for rel, prefix, number in workplan_ids(repo):
by_prefix[prefix].add(repo.name)
ident = f"{prefix}-{number}"
by_id[ident].append((repo.name, rel))
numbers[(repo.name, prefix)].append(number)
shared = {
prefix: sorted(repos)
for prefix, repos in sorted(by_prefix.items())
if len(repos) > 1
}
reused = {
ident: [{"repo": repo, "path": path} for repo, path in entries]
for ident, entries in sorted(by_id.items())
if len({repo for repo, _path in entries}) > 1 or len(entries) > 1
}
flavor_derived = sorted(repo for repo in by_prefix.get(FLAVOR_MARKER_PREFIX, []))
retired_in_use = {
prefix: sorted(repos)
for prefix, repos in by_prefix.items()
if prefix in retired
}
owner_mismatch = {
prefix: {"declared_owner": owners[prefix], "seen_in": sorted(repos)}
for prefix, repos in by_prefix.items()
if prefix in owners and any(repo != owners[prefix] for repo in repos)
}
reused_numbers = []
for (repo, prefix), nums in numbers.items():
seen: set[str] = set()
for num in nums:
if num in seen:
reused_numbers.append({"repo": repo, "prefix": prefix, "number": num})
seen.add(num)
return {
"ok": not shared and not flavor_derived and not reused_numbers and not reused,
"root": str(root.resolve()),
"repos_scanned": repos_scanned,
"shared_prefixes": shared,
"reused_identifiers": reused,
"flavor_derived_prefix": flavor_derived,
"retired_in_use": retired_in_use,
"owner_mismatch": owner_mismatch,
"reused_numbers_in_repo": reused_numbers,
"detection_only": True,
}