Files
rfc-app/backend/app/registry.py
T
Ben Stull 74476423ba §22 S2: registry mirror reads .collection.yaml manifests
Discover named collections by walking each project's content-repo root for
<subdir>/.collection.yaml; parse + upsert with immutable-type enforcement
(§22.4a) and project-visibility inheritance. The default collection still
flows from projects.yaml.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-05 12:59:25 -07:00

322 lines
14 KiB
Python

"""§22.2 project registry mirror — the config-side analogue of
cache.refresh_meta_repo.
A deployment declares its projects in a `projects.yaml` at the root of
REGISTRY_REPO. This module mirrors that file into the `projects` cache table
and the `deployment` singleton. Per §22.2, `projects` rows flow from the
registry only — never from user actions. The mirror runs on the registry-repo
webhook and on every reconciler sweep (Option A wiring, Task 5).
"""
from __future__ import annotations
import base64
import json
import logging
import re
from dataclasses import dataclass, field
import yaml
from . import db
from .config import Config
from .gitea import Gitea
log = logging.getLogger(__name__)
VALID_TYPES = {"document", "specification", "bdd"}
VALID_VISIBILITY = {"gated", "public", "unlisted"}
VALID_INITIAL_STATE = {"super-draft", "active"}
# §22.4b: per-type default landing state.
_TYPE_DEFAULT_INITIAL_STATE = {
"document": "super-draft",
"specification": "super-draft",
"bdd": "active",
}
_SLUG_RE = re.compile(r"^[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$")
class RegistryError(Exception):
"""A registry document that fails validation, or a missing registry file.
Raised by parse_registry/refresh_registry. The caller decides severity:
fatal at startup (no last-good to serve), tolerated on a running deployment
(keep the last-good projects rows). See Task 5 wiring.
"""
@dataclass
class ProjectEntry:
id: str
name: str
type: str
content_repo: str
visibility: str
initial_state: str
config: dict = field(default_factory=dict) # theme, enabled_models
@dataclass
class CollectionEntry:
"""A named collection declared by a `.collection.yaml` manifest inside a
project's content repo (S2). `visibility=None` means "inherit the project's
visibility"."""
type: str
visibility: str | None
initial_state: str
name: str | None
@dataclass
class RegistryDoc:
deployment_name: str
deployment_tagline: str
projects: list[ProjectEntry]
def parse_registry(text: str) -> RegistryDoc:
"""Parse + validate projects.yaml. Pure (no I/O). Raises RegistryError."""
raw = yaml.safe_load(text) or {}
dep = raw.get("deployment") or {}
projects_raw = raw.get("projects") or []
if not isinstance(projects_raw, list) or not projects_raw:
raise RegistryError("registry must declare at least one project")
seen: set[str] = set()
entries: list[ProjectEntry] = []
for p in projects_raw:
if not isinstance(p, dict):
raise RegistryError(f"each project entry must be a mapping, got {type(p).__name__}")
pid = str(p.get("id") or "").strip()
if not _SLUG_RE.match(pid):
raise RegistryError(f"project id {pid!r} is not a valid slug")
if pid in seen:
raise RegistryError(f"duplicate project id {pid!r}")
seen.add(pid)
name = str(p.get("name") or "").strip()
if not name:
raise RegistryError(f"project {pid!r} missing name")
ptype = str(p.get("type") or "").strip()
if ptype not in VALID_TYPES:
raise RegistryError(f"project {pid!r} has invalid type {ptype!r}")
content_repo = str(p.get("content_repo") or "").strip()
if not content_repo:
raise RegistryError(f"project {pid!r} missing content_repo")
vis = str(p.get("visibility") or "gated").strip()
if vis not in VALID_VISIBILITY:
raise RegistryError(f"project {pid!r} has invalid visibility {vis!r}")
initial_state = str(
p.get("initial_state") or _TYPE_DEFAULT_INITIAL_STATE[ptype]
).strip()
if initial_state not in VALID_INITIAL_STATE:
raise RegistryError(
f"project {pid!r} has invalid initial_state {initial_state!r}"
)
cfg: dict = {}
if p.get("theme") is not None:
cfg["theme"] = p["theme"]
if p.get("enabled_models") is not None:
cfg["enabled_models"] = [str(m) for m in p["enabled_models"]]
entries.append(
ProjectEntry(pid, name, ptype, content_repo, vis, initial_state, cfg)
)
return RegistryDoc(
deployment_name=str(dep.get("name") or "").strip(),
deployment_tagline=str(dep.get("tagline") or "").strip(),
projects=entries,
)
def parse_collection_manifest(text: str) -> CollectionEntry:
"""Parse + validate a `.collection.yaml`. Pure (no I/O). Raises RegistryError.
`type` is required and immutable (§22.4a, enforced at upsert). `visibility`
is optional — omitted means inherit the project's. `initial_state` defaults
per type (§22.4b)."""
raw = yaml.safe_load(text) or {}
if not isinstance(raw, dict):
raise RegistryError("collection manifest must be a mapping")
ctype = str(raw.get("type") or "").strip()
if ctype not in VALID_TYPES:
raise RegistryError(f"collection has invalid type {ctype!r}")
vis = raw.get("visibility")
if vis is not None:
vis = str(vis).strip()
if vis not in VALID_VISIBILITY:
raise RegistryError(f"collection has invalid visibility {vis!r}")
initial_state = str(
raw.get("initial_state") or _TYPE_DEFAULT_INITIAL_STATE[ctype]
).strip()
if initial_state not in VALID_INITIAL_STATE:
raise RegistryError(f"collection has invalid initial_state {initial_state!r}")
name = raw.get("name")
name = str(name).strip() if name else None
return CollectionEntry(ctype, vis, initial_state, name)
def _default_collection_id(project_id: str, default_id: str) -> str:
"""The id of a project's default collection. The deployment's primary
project (== `default_id`, the §22.13 resolved default) gets the stable
literal `'default'` — matching migration 029's seed so the upsert *merges*
onto the migration-seeded row rather than duplicating it (critical on a
fresh deploy where the bootstrap `default` project is later restamped to the
configured id). Any additional project keys its default collection by its own
id, keeping the collection PK globally unique (pre-S5 multi-project)."""
return "default" if project_id == default_id else project_id
def apply_registry(doc: RegistryDoc, registry_sha: str, default_id: str) -> None:
"""Upsert the parsed registry into projects + their default collections +
the deployment singleton. Idempotent.
§22 three-tier (S1): a project carries the grouping-tier fields (name,
content_repo, visibility, config); the per-corpus fields (`type`,
`initial_state`) live on the project's default collection. §22.4a: `type` is
immutable — a change against an existing collection is rejected (skip the
type change + log), never applied. Projects absent from the registry are
left in place (archival is out of scope for M3; they stop refreshing).
"""
with db.tx() as conn:
for e in doc.projects:
cid = _default_collection_id(e.id, default_id)
existing = conn.execute(
"SELECT type FROM collections WHERE id = ?", (cid,)
).fetchone()
type_locked = existing is not None and existing["type"] != e.type
if type_locked:
log.error(
"registry: refusing immutable type change on collection %s (%s -> %s)",
cid, existing["type"], e.type,
)
# The project (grouping tier) always refreshes.
conn.execute(
"""
INSERT INTO projects
(id, name, content_repo, visibility, config_json, registry_sha, updated_at)
VALUES (?, ?, ?, ?, ?, ?, datetime('now'))
ON CONFLICT(id) DO UPDATE SET
name = excluded.name,
content_repo = excluded.content_repo,
visibility = excluded.visibility,
config_json = excluded.config_json,
registry_sha = excluded.registry_sha,
updated_at = datetime('now')
""",
(e.id, e.name, e.content_repo, e.visibility, json.dumps(e.config), registry_sha),
)
# The default collection (corpus tier). On an immutable-type
# conflict, keep the stored type but still refresh the rest.
effective_type = existing["type"] if type_locked else e.type
conn.execute(
"""
INSERT INTO collections
(id, project_id, type, subfolder, initial_state, visibility, name, registry_sha, updated_at)
VALUES (?, ?, ?, '', ?, ?, ?, ?, datetime('now'))
ON CONFLICT(id) DO UPDATE SET
project_id = excluded.project_id,
type = excluded.type,
initial_state = excluded.initial_state,
visibility = excluded.visibility,
name = excluded.name,
registry_sha = excluded.registry_sha,
updated_at = datetime('now')
""",
(cid, e.id, effective_type, e.initial_state, e.visibility, e.name, registry_sha),
)
conn.execute(
"""
UPDATE deployment
SET name = ?, tagline = ?, registry_sha = ?, updated_at = datetime('now')
WHERE id = 1
""",
(doc.deployment_name, doc.deployment_tagline, registry_sha),
)
def _upsert_named_collection(
proj: ProjectEntry, subdir: str, ce: CollectionEntry, sha: str
) -> None:
"""Upsert one named collection (S2). Type is immutable (§22.4a): a type
change against an existing row is refused (logged, not applied). A None
manifest visibility inherits the project's visibility."""
visibility = ce.visibility or proj.visibility
with db.tx() as conn:
existing = conn.execute(
"SELECT type FROM collections WHERE id = ?", (subdir,)
).fetchone()
if existing is not None and existing["type"] != ce.type:
log.error(
"registry: refusing immutable type change on collection %s (%s -> %s)",
subdir, existing["type"], ce.type,
)
return
conn.execute(
"""
INSERT INTO collections
(id, project_id, type, subfolder, initial_state, visibility, name, registry_sha, updated_at)
VALUES (?, ?, ?, ?, ?, ?, ?, ?, datetime('now'))
ON CONFLICT(id) DO UPDATE SET
project_id = excluded.project_id,
initial_state = excluded.initial_state,
visibility = excluded.visibility,
name = excluded.name,
registry_sha = excluded.registry_sha,
updated_at = datetime('now')
""",
(subdir, proj.id, ce.type, subdir, ce.initial_state, visibility, ce.name, sha),
)
async def _mirror_named_collections(config: Config, gitea: Gitea, doc: RegistryDoc, sha: str) -> None:
"""§22 S2: named collections are declared by `.collection.yaml` manifests
inside each project's content repo (the default collection comes from
projects.yaml). Walk each content repo root; a subdir carrying a manifest
becomes a collection keyed by the subdir name. Tolerant: a transport or
parse failure on one project/collection logs and is skipped, never aborts
the wider mirror (keep last-good)."""
for proj in doc.projects:
try:
items = await gitea.list_dir(config.gitea_org, proj.content_repo, "", ref="main")
except Exception as e: # noqa: BLE001 — GiteaError/transport: tolerate
log.warning("registry: cannot list %s root: %s", proj.content_repo, e)
continue
for it in items:
if it.get("type") != "dir":
continue
subdir = it["name"]
manifest = await gitea.get_contents(
config.gitea_org, proj.content_repo, f"{subdir}/.collection.yaml", ref="main"
)
if not manifest or manifest.get("type") != "file":
continue
mtext = base64.b64decode(manifest["content"]).decode("utf-8")
try:
ce = parse_collection_manifest(mtext)
except RegistryError as e:
log.error("registry: bad manifest %s/%s: %s", proj.content_repo, subdir, e)
continue
_upsert_named_collection(proj, subdir, ce, sha)
async def refresh_registry(config: Config, gitea: Gitea) -> None:
"""Mirror REGISTRY_REPO/projects.yaml into projects + deployment.
Idempotent. Raises RegistryError on a missing/invalid file and GiteaError
on transport failure; the caller chooses fatal-vs-tolerated.
"""
item = await gitea.get_contents(
config.gitea_org, config.registry_repo, "projects.yaml", ref="main"
)
if not item or item.get("type") != "file":
raise RegistryError(
f"{config.gitea_org}/{config.registry_repo}/projects.yaml not found"
)
text = base64.b64decode(item["content"]).decode("utf-8")
# Prefer the file's last commit sha for provenance (production Gitea
# includes it on the contents response); fall back to the blob sha.
sha = item.get("last_commit_sha") or item.get("sha") or ""
doc = parse_registry(text)
from . import projects as projects_mod
apply_registry(doc, sha, projects_mod.resolved_default_id(config))
# §22 S2: discover + upsert named collections from each content repo.
await _mirror_named_collections(config, gitea, doc, sha)
log.info("registry: mirrored %d project(s) at %s", len(doc.projects), sha)