musehub_repository.py
python
sha256:f3995ec2c05c9c34b0e4d6e96349a811d0117a1c51d78096d757998ccb3c0520
fix: blobs only in S3/mpack — remove commit/snapshot indivi…
Sonnet 4.6
patch
45 days ago
| 1 | """MuseHub persistence adapter — single point of DB access for Hub entities. |
| 2 | |
| 3 | This module is the ONLY place that touches the musehub_* tables. |
| 4 | Route handlers delegate here; no business logic lives in routes. |
| 5 | |
| 6 | Boundary rules: |
| 7 | - Must NOT import state stores, SSE queues, or LLM clients. |
| 8 | - May import ORM models from musehub.db domain-specific modules. |
| 9 | - May import Pydantic response models from musehub.models.musehub. |
| 10 | """ |
| 11 | from datetime import datetime, timezone |
| 12 | |
| 13 | import logging |
| 14 | import re |
| 15 | from collections import deque |
| 16 | |
| 17 | from sqlalchemy import desc, func, or_, select |
| 18 | from sqlalchemy.ext.asyncio import AsyncSession |
| 19 | from sqlalchemy.orm import aliased |
| 20 | from sqlalchemy.sql.elements import ColumnElement |
| 21 | |
| 22 | from musehub.services.musehub_snapshot import get_snapshot_manifests_batch |
| 23 | |
| 24 | GENERIC_DOMAIN = "generic" |
| 25 | from musehub.core.genesis import compute_branch_id, compute_fork_id, compute_identity_id, compute_repo_id, compute_session_id |
| 26 | from musehub.db.musehub_identity_models import MusehubIdentity |
| 27 | from musehub.db.musehub_intel_models import MusehubFileLastCommit, MusehubSymbolHistoryEntry |
| 28 | from musehub.db.musehub_repo_models import ( |
| 29 | MusehubBranch, |
| 30 | MusehubCommit, |
| 31 | MusehubCommitRef, |
| 32 | MusehubObject, |
| 33 | MusehubObjectRef, |
| 34 | MusehubRepo, |
| 35 | MusehubSession, |
| 36 | ) |
| 37 | from musehub.db.musehub_social_models import MusehubFork |
| 38 | from musehub.db import musehub_collaborator_models as collab_db |
| 39 | from musehub.db.utils import escape_like |
| 40 | from musehub.models.musehub import ( |
| 41 | SessionListResponse, |
| 42 | SessionResponse, |
| 43 | BranchDetailListResponse, |
| 44 | BranchDetailResponse, |
| 45 | BranchDivergenceScores, |
| 46 | BranchResponse, |
| 47 | CommitListResponse, |
| 48 | CommitResponse, |
| 49 | GlobalSearchCommitMatch, |
| 50 | GlobalSearchRepoGroup, |
| 51 | GlobalSearchResult, |
| 52 | DagEdge, |
| 53 | DagGraphResponse, |
| 54 | DagNode, |
| 55 | MuseHubContextCommitInfo, |
| 56 | MuseHubContextHistoryEntry, |
| 57 | MuseHubContextMusicalState, |
| 58 | MuseHubContextResponse, |
| 59 | ObjectMetaResponse, |
| 60 | RepoListResponse, |
| 61 | RepoResponse, |
| 62 | RepoSettingsPatch, |
| 63 | RepoSettingsResponse, |
| 64 | TimelineCommitEvent, |
| 65 | TimelineResponse, |
| 66 | TreeEntryResponse, |
| 67 | TreeListResponse, |
| 68 | ForkNetworkNode, |
| 69 | ForkNetworkResponse, |
| 70 | ForkRepoRequest, |
| 71 | UserForkedRepoEntry, |
| 72 | UserForksResponse, |
| 73 | ) |
| 74 | from musehub.types.json_types import IntDict, JSONObject, StrDict |
| 75 | |
| 76 | type FileLastCommits = dict[str, StrDict] |
| 77 | |
| 78 | logger = logging.getLogger(__name__) |
| 79 | |
| 80 | |
| 81 | def _generate_slug(name: str) -> str: |
| 82 | """Derive a URL-safe slug from a human-readable repo name. |
| 83 | |
| 84 | Rules: lowercase, non-alphanumeric chars collapsed to single hyphens, |
| 85 | leading/trailing hyphens stripped, max 64 chars. If the result is empty |
| 86 | (e.g. name was all symbols) we fall back to "repo". |
| 87 | """ |
| 88 | slug = name.lower() |
| 89 | slug = re.sub(r"[^a-z0-9]+", "-", slug) |
| 90 | slug = slug.strip("-") |
| 91 | slug = slug[:64].strip("-") |
| 92 | return slug or "repo" |
| 93 | |
| 94 | |
| 95 | def _repo_clone_url(owner: str, slug: str) -> str: |
| 96 | """Derive the canonical clone URL from owner and slug. |
| 97 | |
| 98 | Returns a plain HTTPS URL using the configured public_url so that |
| 99 | `muse clone <url>` works without any extra flags. Override the host |
| 100 | via the PUBLIC_URL environment variable (e.g. https://staging.musehub.ai). |
| 101 | """ |
| 102 | from musehub.config import settings |
| 103 | return f"{settings.public_url.rstrip('/')}/{owner}/{slug}" |
| 104 | |
| 105 | |
| 106 | def _to_repo_response(row: MusehubRepo, domain: str = GENERIC_DOMAIN) -> RepoResponse: |
| 107 | return RepoResponse( |
| 108 | repo_id=row.repo_id, |
| 109 | name=row.name, |
| 110 | owner=row.owner, |
| 111 | slug=row.slug, |
| 112 | visibility=row.visibility, |
| 113 | owner_user_id=row.owner_user_id, |
| 114 | clone_url=_repo_clone_url(row.owner, row.slug), |
| 115 | description=row.description, |
| 116 | tags=list(row.tags or []), |
| 117 | domain_id=getattr(row, "domain_id", None), |
| 118 | domain=domain, |
| 119 | default_branch=row.default_branch, |
| 120 | created_at=row.created_at, |
| 121 | updated_at=row.updated_at, |
| 122 | pushed_at=row.pushed_at, |
| 123 | ) |
| 124 | |
| 125 | |
| 126 | def _to_branch_response(row: MusehubBranch) -> BranchResponse: |
| 127 | return BranchResponse( |
| 128 | branch_id=row.branch_id, |
| 129 | name=row.name, |
| 130 | head_commit_id=row.head_commit_id, |
| 131 | ) |
| 132 | |
| 133 | |
| 134 | def _to_commit_response(row: MusehubCommit) -> CommitResponse: |
| 135 | return CommitResponse( |
| 136 | commit_id=row.commit_id, |
| 137 | branch=row.branch, |
| 138 | parent_ids=list(row.parent_ids or []), |
| 139 | message=row.message, |
| 140 | author=row.author, |
| 141 | timestamp=row.timestamp, |
| 142 | snapshot_id=row.snapshot_id, |
| 143 | ) |
| 144 | |
| 145 | |
| 146 | async def create_repo( |
| 147 | session: AsyncSession, |
| 148 | *, |
| 149 | name: str, |
| 150 | owner: str, |
| 151 | visibility: str, |
| 152 | owner_user_id: str, |
| 153 | owner_identity_id: str = "", |
| 154 | description: str = "", |
| 155 | tags: list[str] | None = None, |
| 156 | domain: str = "", |
| 157 | marketplace_domain_id: str | None = None, |
| 158 | # ── Wizard extensions ──────────────────────────────────────── |
| 159 | license: str | None = None, |
| 160 | topics: list[str] | None = None, |
| 161 | initialize: bool = False, |
| 162 | default_branch: str = "main", |
| 163 | template_repo_id: str | None = None, |
| 164 | ) -> RepoResponse: |
| 165 | """Persist a new remote repo and return its wire representation. |
| 166 | |
| 167 | ``slug`` is auto-generated from ``name``. The ``(owner, slug)`` pair must |
| 168 | be unique — callers should catch ``IntegrityError`` and surface a 409. |
| 169 | |
| 170 | Wizard behaviors: |
| 171 | - When ``template_repo_id`` is set, the template's description and topics |
| 172 | are copied into the new repo (template must be public; silently skipped |
| 173 | when it doesn't exist or is private). |
| 174 | - When ``initialize=True``, an empty "Initial commit" is written plus the |
| 175 | default branch pointer so the repo is immediately browsable. |
| 176 | - ``license`` is stored in the settings JSON blob under the ``license`` key. |
| 177 | - ``topics`` are merged with ``tags`` into a single unified tag list. |
| 178 | |
| 179 | Marketplace domain link (musehub#120): ``domain`` is a plain VCS-plugin |
| 180 | category string (e.g. "code") carrying no author context, so it can |
| 181 | never by itself identify a specific marketplace ``MusehubDomain``. |
| 182 | - ``marketplace_domain_id`` explicit and non-``None`` — validated via |
| 183 | ``get_domain_by_id`` (raises ``ValueError("marketplace_domain_not_found")`` |
| 184 | if it doesn't exist, same contract ``update_repo_settings`` already |
| 185 | has) and stored as-is. |
| 186 | - Omitted — auto-resolved via |
| 187 | ``resolve_unambiguous_domain_id_by_category(session, domain)``, which |
| 188 | only links when exactly one non-deprecated marketplace domain matches |
| 189 | the category; ambiguous or unmatched categories are left ``None``, |
| 190 | never guessed. |
| 191 | |
| 192 | Either way, when the repo ends up linked, ``record_domain_install`` is |
| 193 | called once for ``owner_user_id`` so the target domain's |
| 194 | ``install_count`` is correct from the moment of creation. |
| 195 | """ |
| 196 | from musehub.services import musehub_domains as _musehub_domains |
| 197 | # Merge topics into tags (deduplicated, stable order). |
| 198 | combined_tags: list[str] = list(dict.fromkeys((tags or []) + (topics or []))) |
| 199 | |
| 200 | # Copy template metadata when a template repo is supplied. |
| 201 | if template_repo_id is not None: |
| 202 | tmpl = await session.get(MusehubRepo, template_repo_id) |
| 203 | if tmpl is not None and tmpl.visibility == "public": |
| 204 | if not description: |
| 205 | description = tmpl.description |
| 206 | # Prepend template tags; deduplicate preserving order. |
| 207 | combined_tags = list(dict.fromkeys(list(tmpl.tags or []) + combined_tags)) |
| 208 | |
| 209 | # Build the settings JSON blob with optional license field. |
| 210 | settings: JSONObject = {} |
| 211 | if license is not None: |
| 212 | settings["license"] = license |
| 213 | |
| 214 | slug = _generate_slug(name) |
| 215 | _created_at = datetime.now(timezone.utc) |
| 216 | # Canonical hash input: empty/absent domain maps to "muse/generic" — never "". |
| 217 | _domain_hash_input = domain or "muse/generic" |
| 218 | # Stored domain: default to "code" — the column must never be NULL for new repos. |
| 219 | _domain_id = domain or "code" |
| 220 | |
| 221 | # ── Marketplace domain link (musehub#120) — never guess ───────────────── |
| 222 | _marketplace_domain_id: str | None |
| 223 | if marketplace_domain_id is not None: |
| 224 | target = await _musehub_domains.get_domain_by_id(session, marketplace_domain_id) |
| 225 | if target is None: |
| 226 | raise ValueError("marketplace_domain_not_found") |
| 227 | _marketplace_domain_id = marketplace_domain_id |
| 228 | else: |
| 229 | _marketplace_domain_id = await _musehub_domains.resolve_unambiguous_domain_id_by_category( |
| 230 | session, _domain_id |
| 231 | ) |
| 232 | |
| 233 | repo = MusehubRepo( |
| 234 | repo_id=compute_repo_id(owner_identity_id, slug, _domain_hash_input, _created_at.isoformat()), |
| 235 | name=name, |
| 236 | owner=owner, |
| 237 | slug=slug, |
| 238 | visibility=visibility, |
| 239 | owner_user_id=owner_user_id, |
| 240 | description=description, |
| 241 | tags=combined_tags, |
| 242 | settings=settings or None, |
| 243 | domain_id=_domain_id, |
| 244 | marketplace_domain_id=_marketplace_domain_id, |
| 245 | default_branch=default_branch, |
| 246 | ) |
| 247 | session.add(repo) |
| 248 | await session.flush() # populate default columns before reading |
| 249 | await session.refresh(repo) |
| 250 | |
| 251 | if _marketplace_domain_id is not None: |
| 252 | await _musehub_domains.record_domain_install(session, owner_user_id, _marketplace_domain_id) |
| 253 | |
| 254 | # Wizard initialisation: create default branch + empty initial commit. |
| 255 | if initialize: |
| 256 | from muse.core.types import blob_id as _blob_id |
| 257 | init_commit_id = _blob_id(f"init:{repo.repo_id}".encode()) |
| 258 | now = datetime.now(tz=timezone.utc) |
| 259 | |
| 260 | branch = MusehubBranch( |
| 261 | branch_id=compute_branch_id(repo.repo_id, default_branch), |
| 262 | repo_id=repo.repo_id, |
| 263 | name=default_branch, |
| 264 | head_commit_id=init_commit_id, |
| 265 | ) |
| 266 | session.add(branch) |
| 267 | |
| 268 | init_commit = MusehubCommit( |
| 269 | commit_id=init_commit_id, |
| 270 | branch=default_branch, |
| 271 | parent_ids=[], |
| 272 | message="Initial commit", |
| 273 | author=owner_user_id, |
| 274 | timestamp=now, |
| 275 | ) |
| 276 | session.add(init_commit) |
| 277 | session.add(MusehubCommitRef(repo_id=repo.repo_id, commit_id=init_commit_id)) |
| 278 | await session.flush() |
| 279 | |
| 280 | logger.info( |
| 281 | "✅ Created MuseHub repo %s (%s/%s) for user %s (initialize=%s)", |
| 282 | repo.repo_id, owner, slug, owner_user_id, initialize, |
| 283 | ) |
| 284 | return _to_repo_response(repo) |
| 285 | |
| 286 | |
| 287 | async def get_repo(session: AsyncSession, repo_id: str) -> RepoResponse | None: |
| 288 | """Return repo metadata by internal ID, or None if not found.""" |
| 289 | result = await session.get(MusehubRepo, repo_id) |
| 290 | if result is None: |
| 291 | return None |
| 292 | return _to_repo_response(result) |
| 293 | |
| 294 | |
| 295 | async def check_write_access( |
| 296 | session: AsyncSession, |
| 297 | repo_id: str, |
| 298 | actor: str, |
| 299 | repo_owner: str, |
| 300 | ) -> bool: |
| 301 | """Return True if *actor* has write-level access to the repo. |
| 302 | |
| 303 | Write access is granted when the actor is the repository owner, or when |
| 304 | they are an accepted write/admin collaborator. This mirrors the check |
| 305 | performed by ``_guard_repo_owner`` in the REST route layer. |
| 306 | |
| 307 | Args: |
| 308 | session: Active async DB session. |
| 309 | repo_id: ID of the repository. |
| 310 | actor: Identity handle of the caller. |
| 311 | repo_owner: Owner handle of the repository (from ``RepoResponse.owner``). |
| 312 | |
| 313 | Returns: |
| 314 | ``True`` when the caller has write access; ``False`` otherwise. |
| 315 | """ |
| 316 | if actor == repo_owner: |
| 317 | return True |
| 318 | collab = (await session.execute( |
| 319 | select(collab_db.MusehubCollaborator).where( |
| 320 | collab_db.MusehubCollaborator.repo_id == repo_id, |
| 321 | collab_db.MusehubCollaborator.identity_handle == actor, |
| 322 | collab_db.MusehubCollaborator.accepted_at.isnot(None), |
| 323 | collab_db.MusehubCollaborator.permission.in_(["write", "admin"]), |
| 324 | ) |
| 325 | )).scalar_one_or_none() |
| 326 | return collab is not None |
| 327 | |
| 328 | |
| 329 | async def delete_repo(session: AsyncSession, repo_id: str) -> bool: |
| 330 | """Hard-delete a repo and all its cascade-deleted dependents. |
| 331 | |
| 332 | Returns True when the repo existed and was deleted; False when not found. |
| 333 | The caller is responsible for committing the session. |
| 334 | """ |
| 335 | row = await session.get(MusehubRepo, repo_id) |
| 336 | if row is None: |
| 337 | return False |
| 338 | await session.delete(row) |
| 339 | await session.flush() |
| 340 | logger.info("✅ Hard-deleted MuseHub repo %s", repo_id) |
| 341 | return True |
| 342 | |
| 343 | |
| 344 | async def transfer_repo_ownership( |
| 345 | session: AsyncSession, repo_id: str, new_owner_user_id: str |
| 346 | ) -> RepoResponse | None: |
| 347 | """Transfer repo ownership to a new user. |
| 348 | |
| 349 | Only touches ``owner_user_id`` — the public ``owner`` username slug is |
| 350 | intentionally NOT changed here; the owner username update (if desired) is a |
| 351 | settings-level change the new owner makes separately. |
| 352 | |
| 353 | Returns the updated RepoResponse, or None when the repo is not found. |
| 354 | The caller is responsible for committing the session. |
| 355 | """ |
| 356 | row = await session.get(MusehubRepo, repo_id) |
| 357 | if row is None: |
| 358 | return None |
| 359 | row.owner_user_id = new_owner_user_id |
| 360 | await session.flush() |
| 361 | await session.refresh(row) |
| 362 | logger.info("✅ Transferred MuseHub repo %s ownership to user %s", repo_id, new_owner_user_id) |
| 363 | return _to_repo_response(row) |
| 364 | |
| 365 | |
| 366 | async def get_identity_id_for_handle(session: AsyncSession, handle: str) -> str: |
| 367 | """Return the genesis-addressed identity_id for a MSign handle, or '' if not found.""" |
| 368 | row = (await session.execute( |
| 369 | select(MusehubIdentity.identity_id).where(MusehubIdentity.handle == handle) |
| 370 | )).scalar_one_or_none() |
| 371 | return row or "" |
| 372 | |
| 373 | |
| 374 | async def get_repo_row_by_owner_slug( |
| 375 | session: AsyncSession, owner: str, slug: str |
| 376 | ) -> MusehubRepo | None: |
| 377 | """Return the raw ORM row for owner/slug, or None if not found. |
| 378 | |
| 379 | Use this when you need access to internal fields (e.g. ``owner_user_id``, |
| 380 | ``visibility``) that are not exposed by :class:`RepoResponse`. |
| 381 | """ |
| 382 | stmt = select(MusehubRepo).where( |
| 383 | MusehubRepo.owner == owner, |
| 384 | MusehubRepo.slug == slug, |
| 385 | ) |
| 386 | return (await session.execute(stmt)).scalars().first() |
| 387 | |
| 388 | |
| 389 | async def get_repo_by_owner_slug( |
| 390 | session: AsyncSession, owner: str, slug: str |
| 391 | ) -> RepoResponse | None: |
| 392 | """Return repo metadata by owner+slug canonical URL pair, or None if not found. |
| 393 | |
| 394 | This is the primary resolver for all external /{owner}/{slug} routes. |
| 395 | """ |
| 396 | row = await get_repo_row_by_owner_slug(session, owner, slug) |
| 397 | if row is None: |
| 398 | return None |
| 399 | return _to_repo_response(row) |
| 400 | |
| 401 | |
| 402 | _PAGE_SIZE = 20 |
| 403 | |
| 404 | |
| 405 | async def list_repos_for_user( |
| 406 | session: AsyncSession, |
| 407 | user_id: str, |
| 408 | *, |
| 409 | limit: int = _PAGE_SIZE, |
| 410 | cursor: str | None = None, |
| 411 | ) -> RepoListResponse: |
| 412 | """Return repos owned by or collaborated on by ``user_id``. |
| 413 | |
| 414 | Results are ordered by ``created_at`` descending (newest first). Pagination |
| 415 | uses an opaque cursor encoding the ``created_at`` ISO timestamp of the last |
| 416 | item on the current page — pass it back as ``?cursor=`` to advance. |
| 417 | |
| 418 | Args: |
| 419 | session: Active async DB session. |
| 420 | user_id: MSign handle of the authenticated caller. |
| 421 | limit: Maximum repos per page (default 20). |
| 422 | cursor: Opaque pagination cursor from a previous response. |
| 423 | |
| 424 | Returns: |
| 425 | ``RepoListResponse`` with the page of repos, total count, and next cursor. |
| 426 | """ |
| 427 | # Correlated subquery: repo IDs the user has accepted collaborator access to. |
| 428 | # Using a subquery (not a Python list) avoids fetching all IDs into memory |
| 429 | # and avoids large IN() clauses for users with many collaboration repos. |
| 430 | collab_subq = ( |
| 431 | select(collab_db.MusehubCollaborator.repo_id) |
| 432 | .where( |
| 433 | collab_db.MusehubCollaborator.identity_handle == user_id, |
| 434 | collab_db.MusehubCollaborator.accepted_at.is_not(None), |
| 435 | ) |
| 436 | ) |
| 437 | |
| 438 | # Base filter: repos the caller owns OR collaborates on. |
| 439 | base_filter = or_( |
| 440 | MusehubRepo.owner == user_id, |
| 441 | MusehubRepo.repo_id.in_(collab_subq), |
| 442 | ) |
| 443 | |
| 444 | # Total count across all pages. |
| 445 | count_stmt = select(func.count()).select_from(MusehubRepo).where(base_filter) |
| 446 | total: int = (await session.execute(count_stmt)).scalar_one() |
| 447 | |
| 448 | # Apply cursor: skip repos created at or after the cursor timestamp. |
| 449 | page_filter = base_filter |
| 450 | if cursor is not None: |
| 451 | try: |
| 452 | # Normalise 'Z' suffix so fromisoformat works on all Python versions. |
| 453 | _cursor = cursor.replace("Z", "+00:00") |
| 454 | cursor_dt = datetime.fromisoformat(_cursor) |
| 455 | page_filter = base_filter & (MusehubRepo.created_at < cursor_dt) |
| 456 | except ValueError: |
| 457 | pass # malformed cursor — ignore and return from the beginning |
| 458 | |
| 459 | stmt = ( |
| 460 | select(MusehubRepo) |
| 461 | .where(page_filter) |
| 462 | .order_by(desc(MusehubRepo.created_at)) |
| 463 | .limit(limit) |
| 464 | ) |
| 465 | rows = (await session.execute(stmt)).scalars().all() |
| 466 | repos = [_to_repo_response(r) for r in rows] |
| 467 | |
| 468 | # Build next cursor from the last item's created_at when there may be more. |
| 469 | # Use 'Z' suffix (not '+00:00') so the cursor is URL-safe in query strings. |
| 470 | next_cursor: str | None = None |
| 471 | if len(rows) == limit: |
| 472 | _ts = rows[-1].created_at.astimezone(timezone.utc) |
| 473 | next_cursor = f"{_ts.strftime('%Y-%m-%dT%H:%M:%S.%f')}Z" |
| 474 | |
| 475 | return RepoListResponse(repos=repos, next_cursor=next_cursor, total=total) |
| 476 | |
| 477 | |
| 478 | async def get_repo_orm_by_owner_slug( |
| 479 | session: AsyncSession, owner: str, slug: str |
| 480 | ) -> MusehubRepo | None: |
| 481 | """Return the raw ORM repo row by owner+slug, or None if not found. |
| 482 | |
| 483 | Used internally when the route needs the repo_id for downstream calls. |
| 484 | """ |
| 485 | stmt = select(MusehubRepo).where( |
| 486 | MusehubRepo.owner == owner, |
| 487 | MusehubRepo.slug == slug, |
| 488 | ) |
| 489 | return (await session.execute(stmt)).scalars().first() |
| 490 | |
| 491 | |
| 492 | async def list_branches(session: AsyncSession, repo_id: str) -> list[BranchResponse]: |
| 493 | """Return all branches for a repo, ordered by name.""" |
| 494 | stmt = ( |
| 495 | select(MusehubBranch) |
| 496 | .where(MusehubBranch.repo_id == repo_id) |
| 497 | .order_by(MusehubBranch.name) |
| 498 | ) |
| 499 | rows = (await session.execute(stmt)).scalars().all() |
| 500 | return [_to_branch_response(r) for r in rows] |
| 501 | |
| 502 | |
| 503 | async def get_branch_head_commit_id( |
| 504 | session: AsyncSession, |
| 505 | repo_id: str, |
| 506 | branch_name: str, |
| 507 | ) -> str | None: |
| 508 | """Return the head commit ID of ``branch_name`` in ``repo_id``, or ``None``.""" |
| 509 | stmt = select(MusehubBranch).where( |
| 510 | MusehubBranch.repo_id == repo_id, |
| 511 | MusehubBranch.name == branch_name, |
| 512 | ) |
| 513 | row = (await session.execute(stmt)).scalar_one_or_none() |
| 514 | return row.head_commit_id if row is not None else None |
| 515 | |
| 516 | |
| 517 | async def list_branches_with_detail( |
| 518 | session: AsyncSession, repo_id: str |
| 519 | ) -> BranchDetailListResponse: |
| 520 | """Return branches enriched with ahead/behind counts vs the default branch. |
| 521 | |
| 522 | The default branch is whichever branch is named "main"; if no "main" branch |
| 523 | exists, the first branch alphabetically is used. Ahead/behind counts are |
| 524 | computed by comparing the set of commit IDs on each branch vs the default |
| 525 | branch — a set-difference approximation suitable for display purposes. |
| 526 | |
| 527 | Musical divergence scores are not yet computable server-side (they require |
| 528 | audio snapshots), so all divergence fields are returned as ``None`` (placeholder). |
| 529 | """ |
| 530 | branch_stmt = ( |
| 531 | select(MusehubBranch) |
| 532 | .where(MusehubBranch.repo_id == repo_id) |
| 533 | .order_by(MusehubBranch.name) |
| 534 | ) |
| 535 | branch_rows = (await session.execute(branch_stmt)).scalars().all() |
| 536 | if not branch_rows: |
| 537 | return BranchDetailListResponse(branches=[], default_branch="main") |
| 538 | |
| 539 | # Determine default branch name: prefer "main", fall back to first alphabetically. |
| 540 | branch_names = [r.name for r in branch_rows] |
| 541 | default_branch_name = "main" if "main" in branch_names else branch_names[0] |
| 542 | |
| 543 | # Load commit IDs per branch in one query. |
| 544 | commit_stmt = ( |
| 545 | select(MusehubCommit.commit_id, MusehubCommit.branch) |
| 546 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 547 | .where(MusehubCommitRef.repo_id == repo_id) |
| 548 | ) |
| 549 | commit_rows = (await session.execute(commit_stmt)).all() |
| 550 | commits_by_branch = {} |
| 551 | for commit_id, branch_name in commit_rows: |
| 552 | commits_by_branch.setdefault(branch_name, set()).add(commit_id) |
| 553 | |
| 554 | default_commits: set[str] = commits_by_branch.get(default_branch_name, set()) |
| 555 | |
| 556 | results: list[BranchDetailResponse] = [] |
| 557 | for row in branch_rows: |
| 558 | is_default = row.name == default_branch_name |
| 559 | branch_commits: set[str] = commits_by_branch.get(row.name, set()) |
| 560 | ahead = len(branch_commits - default_commits) if not is_default else 0 |
| 561 | behind = len(default_commits - branch_commits) if not is_default else 0 |
| 562 | results.append( |
| 563 | BranchDetailResponse( |
| 564 | branch_id=row.branch_id, |
| 565 | name=row.name, |
| 566 | head_commit_id=row.head_commit_id, |
| 567 | is_default=is_default, |
| 568 | ahead_count=ahead, |
| 569 | behind_count=behind, |
| 570 | divergence=BranchDivergenceScores( |
| 571 | melodic=None, harmonic=None, rhythmic=None, structural=None, dynamic=None |
| 572 | ), |
| 573 | ) |
| 574 | ) |
| 575 | |
| 576 | return BranchDetailListResponse(branches=results, default_branch=default_branch_name) |
| 577 | |
| 578 | |
| 579 | def _to_object_meta_response(row: MusehubObject) -> ObjectMetaResponse: |
| 580 | return ObjectMetaResponse( |
| 581 | object_id=row.object_id, |
| 582 | path=row.path, |
| 583 | size_bytes=row.size_bytes, |
| 584 | created_at=row.created_at, |
| 585 | ) |
| 586 | |
| 587 | |
| 588 | async def get_commit( |
| 589 | session: AsyncSession, repo_id: str, commit_id: str |
| 590 | ) -> CommitResponse | None: |
| 591 | """Return a single commit by ID, or None if not found in this repo.""" |
| 592 | ref_row = await session.get(MusehubCommitRef, (repo_id, commit_id)) |
| 593 | if ref_row is None: |
| 594 | return None |
| 595 | row = await session.get(MusehubCommit, commit_id) |
| 596 | if row is None: |
| 597 | return None |
| 598 | return _to_commit_response(row) |
| 599 | |
| 600 | |
| 601 | async def list_objects( |
| 602 | session: AsyncSession, repo_id: str |
| 603 | ) -> list[ObjectMetaResponse]: |
| 604 | """Return all object metadata for a repo (no binary content), ordered by path.""" |
| 605 | stmt = ( |
| 606 | select(MusehubObject) |
| 607 | .join(MusehubObjectRef, MusehubObject.object_id == MusehubObjectRef.object_id) |
| 608 | .where(MusehubObjectRef.repo_id == repo_id) |
| 609 | .order_by(MusehubObject.path) |
| 610 | ) |
| 611 | rows = (await session.execute(stmt)).scalars().all() |
| 612 | return [_to_object_meta_response(r) for r in rows] |
| 613 | |
| 614 | |
| 615 | async def get_object_row( |
| 616 | session: AsyncSession, repo_id: str, object_id: str |
| 617 | ) -> MusehubObject | None: |
| 618 | """Return the raw ORM object row for content delivery, or None if not found.""" |
| 619 | stmt = ( |
| 620 | select(MusehubObject) |
| 621 | .join(MusehubObjectRef, MusehubObject.object_id == MusehubObjectRef.object_id) |
| 622 | .where( |
| 623 | MusehubObjectRef.repo_id == repo_id, |
| 624 | MusehubObject.object_id == object_id, |
| 625 | ) |
| 626 | ) |
| 627 | return (await session.execute(stmt)).scalars().first() |
| 628 | |
| 629 | |
| 630 | async def list_commits( |
| 631 | session: AsyncSession, |
| 632 | repo_id: str, |
| 633 | *, |
| 634 | branch: str | None = None, |
| 635 | cursor: str | None = None, |
| 636 | limit: int = 50, |
| 637 | ) -> CommitListResponse: |
| 638 | """Return commits for a repo with cursor-based keyset pagination (newest first). |
| 639 | |
| 640 | ``branch`` restricts results to a specific branch when given. |
| 641 | ``cursor`` is the ISO 8601 ``timestamp`` of the last seen commit (opaque |
| 642 | to callers — pass ``nextCursor`` from a previous response verbatim). |
| 643 | Omit to start from the most recent commit. |
| 644 | """ |
| 645 | base_conditions = [MusehubCommitRef.repo_id == repo_id] |
| 646 | if branch: |
| 647 | base_conditions.append(MusehubCommit.branch == branch) |
| 648 | |
| 649 | count_stmt = ( |
| 650 | select(func.count(MusehubCommitRef.commit_id)) |
| 651 | .join(MusehubCommit, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 652 | .where(*base_conditions) |
| 653 | ) |
| 654 | total: int = (await session.execute(count_stmt)).scalar_one() |
| 655 | |
| 656 | data_conditions = list(base_conditions) |
| 657 | if cursor is not None: |
| 658 | data_conditions.append( |
| 659 | MusehubCommit.timestamp < datetime.fromisoformat(cursor) |
| 660 | ) |
| 661 | |
| 662 | rows = list( |
| 663 | ( |
| 664 | await session.execute( |
| 665 | select(MusehubCommit) |
| 666 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 667 | .where(*data_conditions) |
| 668 | .order_by(desc(MusehubCommit.timestamp)) |
| 669 | .limit(limit + 1) |
| 670 | ) |
| 671 | ).scalars() |
| 672 | ) |
| 673 | |
| 674 | next_cursor: str | None = None |
| 675 | if len(rows) == limit + 1: |
| 676 | next_cursor = rows[limit - 1].timestamp.isoformat() |
| 677 | rows = rows[:limit] |
| 678 | |
| 679 | return CommitListResponse( |
| 680 | commits=[_to_commit_response(r) for r in rows], |
| 681 | total=total, |
| 682 | next_cursor=next_cursor, |
| 683 | ) |
| 684 | |
| 685 | |
| 686 | |
| 687 | |
| 688 | async def get_timeline_events( |
| 689 | session: AsyncSession, |
| 690 | repo_id: str, |
| 691 | *, |
| 692 | limit: int = 200, |
| 693 | ) -> TimelineResponse: |
| 694 | """Return a chronological timeline of commits for a repo. |
| 695 | |
| 696 | Fetches up to ``limit`` commits (oldest-first for temporal rendering) and |
| 697 | derives two event streams: |
| 698 | - commits: every commit as a timeline marker |
| 699 | - emotion: deterministic emotion vectors from commit SHAs |
| 700 | |
| 701 | Callers must verify the repo exists before calling this function. |
| 702 | Returns an empty timeline when the repo has no commits. |
| 703 | """ |
| 704 | total_stmt = ( |
| 705 | select(func.count()) |
| 706 | .select_from(MusehubCommitRef) |
| 707 | .where(MusehubCommitRef.repo_id == repo_id) |
| 708 | ) |
| 709 | total: int = (await session.execute(total_stmt)).scalar_one() |
| 710 | |
| 711 | rows_stmt = ( |
| 712 | select(MusehubCommit) |
| 713 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 714 | .where(MusehubCommitRef.repo_id == repo_id) |
| 715 | .order_by(MusehubCommit.timestamp) # oldest-first for temporal rendering |
| 716 | .limit(limit) |
| 717 | ) |
| 718 | rows = (await session.execute(rows_stmt)).scalars().all() |
| 719 | |
| 720 | commit_events = [ |
| 721 | TimelineCommitEvent( |
| 722 | commit_id=row.commit_id, |
| 723 | branch=row.branch, |
| 724 | message=row.message, |
| 725 | author=row.author, |
| 726 | timestamp=row.timestamp, |
| 727 | parent_ids=list(row.parent_ids or []), |
| 728 | ) |
| 729 | for row in rows |
| 730 | ] |
| 731 | |
| 732 | return TimelineResponse( |
| 733 | commits=commit_events, |
| 734 | total_commits=total, |
| 735 | ) |
| 736 | async def global_search( |
| 737 | session: AsyncSession, |
| 738 | *, |
| 739 | query: str, |
| 740 | mode: str = "keyword", |
| 741 | cursor: str | None = None, |
| 742 | limit: int = 10, |
| 743 | ) -> GlobalSearchResult: |
| 744 | """Search commit messages across all public MuseHub repos. |
| 745 | |
| 746 | Only ``visibility='public'`` repos are searched — private repos are never |
| 747 | exposed regardless of caller identity. This enforces the public-only |
| 748 | contract at the persistence layer so no route handler can accidentally |
| 749 | bypass it. |
| 750 | |
| 751 | ``mode`` controls matching strategy: |
| 752 | - ``keyword``: OR-match of whitespace-split query terms against message and |
| 753 | repo name using LIKE (case-insensitive via lower()). |
| 754 | - ``pattern``: raw SQL LIKE pattern applied to commit message only. |
| 755 | |
| 756 | Results are grouped by repo and cursor-paginated by repo-group (``limit`` |
| 757 | controls how many repo-groups per page). Within each group, up to 20 |
| 758 | matching commits are returned newest-first. |
| 759 | |
| 760 | An audio preview object ID is attached when the repo contains any .mp3, |
| 761 | .ogg, or .wav artifact — the first one found by path ordering is used. |
| 762 | Audio previews are resolved in a single batched query across all matching |
| 763 | repos (not N per-repo queries) to avoid the N+1 pattern. |
| 764 | |
| 765 | Args: |
| 766 | session: Active async DB session. |
| 767 | query: Raw search string from the user or agent. |
| 768 | mode: "keyword" or "pattern". Defaults to "keyword". |
| 769 | cursor: Opaque cursor from a previous nextCursor field (integer offset encoded as string). |
| 770 | limit: Number of repo-groups per page (1–50). |
| 771 | |
| 772 | Returns: |
| 773 | GlobalSearchResult with groups, cursor pagination metadata, and counts. |
| 774 | """ |
| 775 | # ── 1. Collect all public repos ───────────────────────────────────────── |
| 776 | public_repos_stmt = ( |
| 777 | select(MusehubRepo) |
| 778 | .where( |
| 779 | MusehubRepo.visibility == "public", |
| 780 | ) |
| 781 | .order_by(MusehubRepo.created_at) |
| 782 | ) |
| 783 | public_repo_rows = (await session.execute(public_repos_stmt)).scalars().all() |
| 784 | total_repos_searched = len(public_repo_rows) |
| 785 | |
| 786 | if not public_repo_rows or not query.strip(): |
| 787 | return GlobalSearchResult( |
| 788 | query=query, |
| 789 | mode=mode, |
| 790 | groups=[], |
| 791 | total_repos_searched=total_repos_searched, |
| 792 | ) |
| 793 | |
| 794 | repo_ids = [r.repo_id for r in public_repo_rows] |
| 795 | repo_map = {r.repo_id: r for r in public_repo_rows} |
| 796 | |
| 797 | # ── 2. Build commit filter predicate ──────────────────────────────────── |
| 798 | predicate: ColumnElement[bool] |
| 799 | if mode == "pattern": |
| 800 | predicate = MusehubCommit.message.like(query) |
| 801 | else: |
| 802 | # keyword: OR-match each whitespace-split term against message (lower) |
| 803 | terms = [t for t in query.lower().split() if t] |
| 804 | if not terms: |
| 805 | return GlobalSearchResult( |
| 806 | query=query, |
| 807 | mode=mode, |
| 808 | groups=[], |
| 809 | total_repos_searched=total_repos_searched, |
| 810 | ) |
| 811 | term_predicates = [ |
| 812 | or_( |
| 813 | func.lower(MusehubCommit.message).ilike(f"%{escape_like(term)}%", escape="\\"), |
| 814 | func.lower(MusehubRepo.name).ilike(f"%{escape_like(term)}%", escape="\\"), |
| 815 | ) |
| 816 | for term in terms |
| 817 | ] |
| 818 | predicate = or_(*term_predicates) |
| 819 | |
| 820 | # ── 3. Query matching commits joined to their repo ─────────────────────── |
| 821 | commits_stmt = ( |
| 822 | select(MusehubCommit, MusehubRepo) |
| 823 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 824 | .join(MusehubRepo, MusehubCommitRef.repo_id == MusehubRepo.repo_id) |
| 825 | .where( |
| 826 | MusehubCommitRef.repo_id.in_(repo_ids), |
| 827 | predicate, |
| 828 | ) |
| 829 | .order_by(desc(MusehubCommit.timestamp)) |
| 830 | ) |
| 831 | commit_pairs = (await session.execute(commits_stmt)).all() |
| 832 | |
| 833 | # ── 4. Group commits by repo ───────────────────────────────────────────── |
| 834 | groups_map = {} |
| 835 | for commit_row, _repo_row in commit_pairs: |
| 836 | groups_map.setdefault(_repo_row.repo_id, []).append(commit_row) |
| 837 | |
| 838 | # ── 5. Cursor-paginate repo-groups ─────────────────────────────────────── |
| 839 | # Cursor is the repo_id of the last item returned on the previous page. |
| 840 | # Find its position and start the next page immediately after it. |
| 841 | sorted_repo_ids = list(groups_map.keys()) |
| 842 | page_start = 0 |
| 843 | if cursor: |
| 844 | try: |
| 845 | idx = sorted_repo_ids.index(cursor) |
| 846 | page_start = idx + 1 |
| 847 | except ValueError: |
| 848 | page_start = 0 |
| 849 | page_repo_ids = sorted_repo_ids[page_start : page_start + limit] |
| 850 | has_more = (page_start + limit) < len(sorted_repo_ids) |
| 851 | next_cursor_val = page_repo_ids[-1] if has_more and page_repo_ids else None |
| 852 | |
| 853 | groups: list[GlobalSearchRepoGroup] = [] |
| 854 | for rid in page_repo_ids: |
| 855 | repo_row = repo_map[rid] |
| 856 | all_matches = groups_map[rid] |
| 857 | |
| 858 | commit_matches = [ |
| 859 | GlobalSearchCommitMatch( |
| 860 | commit_id=c.commit_id, |
| 861 | message=c.message, |
| 862 | author=c.author, |
| 863 | branch=c.branch, |
| 864 | timestamp=c.timestamp, |
| 865 | repo_id=rid, |
| 866 | repo_name=repo_row.name, |
| 867 | repo_owner=repo_row.owner_user_id, |
| 868 | repo_visibility=repo_row.visibility, |
| 869 | ) |
| 870 | for c in all_matches[:20] |
| 871 | ] |
| 872 | groups.append( |
| 873 | GlobalSearchRepoGroup( |
| 874 | repo_id=rid, |
| 875 | repo_name=repo_row.name, |
| 876 | repo_owner=repo_row.owner_user_id, |
| 877 | repo_slug=repo_row.slug, |
| 878 | repo_visibility=repo_row.visibility, |
| 879 | matches=commit_matches, |
| 880 | total_matches=len(all_matches), |
| 881 | ) |
| 882 | ) |
| 883 | |
| 884 | return GlobalSearchResult( |
| 885 | query=query, |
| 886 | mode=mode, |
| 887 | groups=groups, |
| 888 | total_repos_searched=total_repos_searched, |
| 889 | next_cursor=next_cursor_val, |
| 890 | ) |
| 891 | async def list_commits_dag( |
| 892 | session: AsyncSession, |
| 893 | repo_id: str, |
| 894 | ) -> DagGraphResponse: |
| 895 | """Return the full commit graph for a repo as a topologically sorted DAG. |
| 896 | |
| 897 | Fetches every commit for the repo (no limit — required for correct DAG |
| 898 | traversal). Applies Kahn's algorithm to produce a topological ordering |
| 899 | from oldest ancestor to newest commit, which graph renderers can consume |
| 900 | directly without additional sorting. |
| 901 | |
| 902 | Edges flow child → parent (source = child, target = parent) following the |
| 903 | standard directed graph convention where arrows point toward ancestors. |
| 904 | |
| 905 | Branch head commits are identified by querying the branches table. The |
| 906 | highest-timestamp commit across all branches is designated as HEAD for |
| 907 | display purposes when no explicit HEAD ref exists. |
| 908 | |
| 909 | Agent use case: call this to reason about the project's branching topology, |
| 910 | find common ancestors, or identify which branches contain a given commit. |
| 911 | """ |
| 912 | # Fetch all commits for this repo |
| 913 | stmt = ( |
| 914 | select(MusehubCommit) |
| 915 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 916 | .where(MusehubCommitRef.repo_id == repo_id) |
| 917 | ) |
| 918 | all_rows = (await session.execute(stmt)).scalars().all() |
| 919 | |
| 920 | if not all_rows: |
| 921 | return DagGraphResponse(nodes=[], edges=[], head_commit_id=None) |
| 922 | |
| 923 | # Build lookup map |
| 924 | row_map = {r.commit_id: r for r in all_rows} |
| 925 | |
| 926 | # Fetch all branches to identify HEAD candidates and branch labels |
| 927 | branch_stmt = select(MusehubBranch).where(MusehubBranch.repo_id == repo_id) |
| 928 | branch_rows = (await session.execute(branch_stmt)).scalars().all() |
| 929 | |
| 930 | # Map commit_id → branch names pointing at it |
| 931 | branch_label_map = {} |
| 932 | for br in branch_rows: |
| 933 | if br.head_commit_id and br.head_commit_id in row_map: |
| 934 | branch_label_map.setdefault(br.head_commit_id, []).append(br.name) |
| 935 | |
| 936 | # Identify HEAD: the branch head with the most recent timestamp, or the |
| 937 | # most recent commit overall when no branches exist |
| 938 | head_commit_id: str | None = None |
| 939 | if branch_rows: |
| 940 | latest_ts = None |
| 941 | for br in branch_rows: |
| 942 | if br.head_commit_id and br.head_commit_id in row_map: |
| 943 | ts = row_map[br.head_commit_id].timestamp |
| 944 | if latest_ts is None or ts > latest_ts: |
| 945 | latest_ts = ts |
| 946 | head_commit_id = br.head_commit_id |
| 947 | if head_commit_id is None: |
| 948 | head_commit_id = max(all_rows, key=lambda r: r.timestamp).commit_id |
| 949 | |
| 950 | # Kahn's topological sort (oldest → newest). |
| 951 | # in_degree[c] = number of c's parents that are present in this repo's commit set. |
| 952 | # Commits with in_degree == 0 are roots (no parents) — they enter the queue first, |
| 953 | # producing a parent-before-child ordering (oldest ancestor → newest commit). |
| 954 | in_degree: IntDict = {r.commit_id: 0 for r in all_rows} |
| 955 | # children_map[parent_id] = list of commit IDs whose parent_ids contains parent_id |
| 956 | children_map = {r.commit_id: [] for r in all_rows} |
| 957 | |
| 958 | edges: list[DagEdge] = [] |
| 959 | for row in all_rows: |
| 960 | for parent_id in (row.parent_ids or []): |
| 961 | if parent_id in row_map: |
| 962 | edges.append(DagEdge(source=row.commit_id, target=parent_id)) |
| 963 | children_map.setdefault(parent_id, []).append(row.commit_id) |
| 964 | in_degree[row.commit_id] += 1 |
| 965 | |
| 966 | # Kahn's algorithm: start from commits with no parents (roots) |
| 967 | queue: deque[str] = deque( |
| 968 | cid for cid, deg in in_degree.items() if deg == 0 |
| 969 | ) |
| 970 | topo_order: list[str] = [] |
| 971 | |
| 972 | while queue: |
| 973 | cid = queue.popleft() |
| 974 | topo_order.append(cid) |
| 975 | for child_id in children_map.get(cid, []): |
| 976 | in_degree[child_id] -= 1 |
| 977 | if in_degree[child_id] == 0: |
| 978 | queue.append(child_id) |
| 979 | |
| 980 | # Handle cycles or disconnected commits (append remaining in timestamp order) |
| 981 | remaining = set(row_map.keys()) - set(topo_order) |
| 982 | if remaining: |
| 983 | sorted_remaining = sorted(remaining, key=lambda c: row_map[c].timestamp) |
| 984 | topo_order.extend(sorted_remaining) |
| 985 | |
| 986 | _conv_re = re.compile(r'^(\w+)(\([^)]*\))?(!)?\s*:') |
| 987 | |
| 988 | nodes: list[DagNode] = [] |
| 989 | for cid in topo_order: |
| 990 | row = row_map[cid] |
| 991 | # Extract conventional-commit prefix from the message |
| 992 | m = _conv_re.match((row.message or "").strip()) |
| 993 | commit_type = m.group(1).lower() if m else "" |
| 994 | |
| 995 | sem_ver_bump = str(row.sem_ver_bump or "none").lower() |
| 996 | |
| 997 | # Breaking change: bang suffix OR breaking_changes column |
| 998 | is_breaking = bool((m and m.group(3)) or row.breaking_changes) |
| 999 | |
| 1000 | is_agent = bool(row.agent_id) |
| 1001 | |
| 1002 | sym_added = 0 |
| 1003 | sym_removed = 0 |
| 1004 | delta = row.structured_delta if isinstance(row.structured_delta, dict) else {} |
| 1005 | for file_op in (delta.get("ops") or []): |
| 1006 | for child_op in (file_op.get("child_ops") or []) if isinstance(file_op, dict) else []: |
| 1007 | if not isinstance(child_op, dict): |
| 1008 | continue |
| 1009 | if child_op.get("op") == "insert": |
| 1010 | sym_added += 1 |
| 1011 | elif child_op.get("op") == "delete": |
| 1012 | sym_removed += 1 |
| 1013 | |
| 1014 | nodes.append( |
| 1015 | DagNode( |
| 1016 | commit_id=row.commit_id, |
| 1017 | message=row.message, |
| 1018 | author=row.author, |
| 1019 | timestamp=row.timestamp, |
| 1020 | branch=row.branch, |
| 1021 | parent_ids=list(row.parent_ids or []), |
| 1022 | is_head=(row.commit_id == head_commit_id), |
| 1023 | branch_labels=branch_label_map.get(row.commit_id, []), |
| 1024 | tag_labels=[], |
| 1025 | commit_type=commit_type, |
| 1026 | sem_ver_bump=sem_ver_bump, |
| 1027 | is_breaking=is_breaking, |
| 1028 | is_agent=is_agent, |
| 1029 | sym_added=sym_added, |
| 1030 | sym_removed=sym_removed, |
| 1031 | ) |
| 1032 | ) |
| 1033 | |
| 1034 | logger.debug("✅ Built DAG for repo %s: %d nodes, %d edges", repo_id, len(nodes), len(edges)) |
| 1035 | return DagGraphResponse(nodes=nodes, edges=edges, head_commit_id=head_commit_id) |
| 1036 | |
| 1037 | |
| 1038 | # --------------------------------------------------------------------------- |
| 1039 | # Context document builder |
| 1040 | # --------------------------------------------------------------------------- |
| 1041 | |
| 1042 | _CONTEXT_HISTORY_DEPTH = 5 |
| 1043 | |
| 1044 | |
| 1045 | async def _get_commit_by_id( |
| 1046 | session: AsyncSession, repo_id: str, commit_id: str |
| 1047 | ) -> MusehubCommit | None: |
| 1048 | """Fetch a raw MusehubCommit ORM row by (repo_id, commit_id).""" |
| 1049 | ref_row = await session.get(MusehubCommitRef, (repo_id, commit_id)) |
| 1050 | if ref_row is None: |
| 1051 | return None |
| 1052 | return await session.get(MusehubCommit, commit_id) |
| 1053 | |
| 1054 | |
| 1055 | async def _build_hub_history( |
| 1056 | session: AsyncSession, |
| 1057 | repo_id: str, |
| 1058 | start_commit: MusehubCommit, |
| 1059 | depth: int, |
| 1060 | ) -> list[MuseHubContextHistoryEntry]: |
| 1061 | """Walk the parent chain, returning up to *depth* ancestor entries. |
| 1062 | |
| 1063 | The *start_commit* (the context target) is NOT included — it is surfaced |
| 1064 | separately as ``head_commit`` in the result. Entries are newest-first. |
| 1065 | """ |
| 1066 | entries: list[MuseHubContextHistoryEntry] = [] |
| 1067 | parent_ids: list[str] = list(start_commit.parent_ids or []) |
| 1068 | |
| 1069 | while parent_ids and len(entries) < depth: |
| 1070 | parent_id = parent_ids[0] |
| 1071 | commit = await _get_commit_by_id(session, repo_id, parent_id) |
| 1072 | if commit is None: |
| 1073 | logger.warning("⚠️ Hub history chain broken at %s", parent_id) |
| 1074 | break |
| 1075 | entries.append( |
| 1076 | MuseHubContextHistoryEntry( |
| 1077 | commit_id=commit.commit_id, |
| 1078 | message=commit.message, |
| 1079 | author=commit.author, |
| 1080 | timestamp=commit.timestamp, |
| 1081 | active_tracks=[], |
| 1082 | ) |
| 1083 | ) |
| 1084 | parent_ids = list(commit.parent_ids or []) |
| 1085 | |
| 1086 | return entries |
| 1087 | |
| 1088 | |
| 1089 | async def get_context_for_commit( |
| 1090 | session: AsyncSession, |
| 1091 | repo_id: str, |
| 1092 | ref: str, |
| 1093 | ) -> MuseHubContextResponse | None: |
| 1094 | """Build a context document for a MuseHub commit. |
| 1095 | |
| 1096 | Traverses the commit's parent chain (up to 5 ancestors). |
| 1097 | |
| 1098 | Args: |
| 1099 | session: Open async DB session. Read-only — no writes performed. |
| 1100 | repo_id: Hub repo identifier. |
| 1101 | ref: Target commit ID. Must belong to this repo. |
| 1102 | |
| 1103 | Returns: |
| 1104 | ``MuseHubContextResponse`` ready for JSON serialisation, or None if the |
| 1105 | commit does not exist in this repo. |
| 1106 | """ |
| 1107 | commit = await _get_commit_by_id(session, repo_id, ref) |
| 1108 | if commit is None: |
| 1109 | return None |
| 1110 | |
| 1111 | head_commit_info = MuseHubContextCommitInfo( |
| 1112 | commit_id=commit.commit_id, |
| 1113 | message=commit.message, |
| 1114 | author=commit.author, |
| 1115 | branch=commit.branch, |
| 1116 | timestamp=commit.timestamp, |
| 1117 | ) |
| 1118 | |
| 1119 | musical_state = MuseHubContextMusicalState(active_tracks=[]) |
| 1120 | |
| 1121 | history = await _build_hub_history( |
| 1122 | session, repo_id, commit, _CONTEXT_HISTORY_DEPTH |
| 1123 | ) |
| 1124 | |
| 1125 | logger.info("✅ MuseHub context built for repo %s commit %s", repo_id, ref) |
| 1126 | return MuseHubContextResponse( |
| 1127 | repo_id=repo_id, |
| 1128 | current_branch=commit.branch, |
| 1129 | head_commit=head_commit_info, |
| 1130 | musical_state=musical_state, |
| 1131 | history=history, |
| 1132 | missing_elements=[], |
| 1133 | suggestions={}, |
| 1134 | ) |
| 1135 | |
| 1136 | |
| 1137 | def _to_session_response(s: MusehubSession) -> SessionResponse: |
| 1138 | """Compute derived fields and return a SessionResponse.""" |
| 1139 | duration: float | None = None |
| 1140 | if s.ended_at is not None: |
| 1141 | # Normalize to offset-naive UTC before subtraction |
| 1142 | ended = s.ended_at.replace(tzinfo=None) if s.ended_at.tzinfo else s.ended_at |
| 1143 | started = s.started_at.replace(tzinfo=None) if s.started_at.tzinfo else s.started_at |
| 1144 | duration = (ended - started).total_seconds() |
| 1145 | return SessionResponse( |
| 1146 | session_id=s.session_id, |
| 1147 | started_at=s.started_at, |
| 1148 | ended_at=s.ended_at, |
| 1149 | duration_seconds=duration, |
| 1150 | participants=s.participants or [], |
| 1151 | commits=list(s.commits) if s.commits else [], |
| 1152 | notes=s.notes or "", |
| 1153 | intent=s.intent, |
| 1154 | location=s.location, |
| 1155 | is_active=s.is_active, |
| 1156 | created_at=s.created_at, |
| 1157 | ) |
| 1158 | |
| 1159 | |
| 1160 | async def create_session( |
| 1161 | session: AsyncSession, |
| 1162 | repo_id: str, |
| 1163 | started_at: datetime | None, |
| 1164 | participants: list[str], |
| 1165 | intent: str, |
| 1166 | location: str, |
| 1167 | *, |
| 1168 | author_identity_id: str = "", |
| 1169 | ) -> SessionResponse: |
| 1170 | """Create and persist a new recording session.""" |
| 1171 | _started_at = started_at or datetime.now(timezone.utc) |
| 1172 | new_session = MusehubSession( |
| 1173 | session_id=compute_session_id(repo_id, author_identity_id, _started_at.isoformat()), |
| 1174 | repo_id=repo_id, |
| 1175 | started_at=_started_at, |
| 1176 | participants=participants, |
| 1177 | intent=intent, |
| 1178 | location=location, |
| 1179 | is_active=True, |
| 1180 | ) |
| 1181 | session.add(new_session) |
| 1182 | await session.flush() |
| 1183 | return _to_session_response(new_session) |
| 1184 | |
| 1185 | |
| 1186 | async def stop_session( |
| 1187 | session: AsyncSession, |
| 1188 | repo_id: str, |
| 1189 | session_id: str, |
| 1190 | ended_at: datetime | None, |
| 1191 | ) -> SessionResponse | None: |
| 1192 | """Mark a session as ended; idempotent if already stopped. Returns None if not found.""" |
| 1193 | from sqlalchemy import select |
| 1194 | |
| 1195 | result = await session.execute( |
| 1196 | select(MusehubSession).where( |
| 1197 | MusehubSession.session_id == session_id, |
| 1198 | MusehubSession.repo_id == repo_id, |
| 1199 | ) |
| 1200 | ) |
| 1201 | row = result.scalar_one_or_none() |
| 1202 | if row is None: |
| 1203 | return None |
| 1204 | if row.is_active: |
| 1205 | row.ended_at = ended_at or datetime.now(timezone.utc) |
| 1206 | row.is_active = False |
| 1207 | await session.flush() |
| 1208 | return _to_session_response(row) |
| 1209 | |
| 1210 | |
| 1211 | async def list_sessions( |
| 1212 | session: AsyncSession, |
| 1213 | repo_id: str, |
| 1214 | limit: int = 50, |
| 1215 | cursor: str | None = None, |
| 1216 | ) -> tuple[list[SessionResponse], int, str | None]: |
| 1217 | """Return sessions for a repo, newest first, with total count and next cursor. |
| 1218 | |
| 1219 | Ordered by ``is_active DESC, started_at DESC``. ``cursor`` is an opaque |
| 1220 | ISO-8601 ``started_at`` timestamp received from a previous response. When |
| 1221 | provided, only sessions with ``started_at`` strictly before the cursor |
| 1222 | instant are returned (ties broken by ``is_active`` sort ordering, which |
| 1223 | means active sessions always float to the top of page 1). |
| 1224 | |
| 1225 | Returns ``(sessions, total, next_cursor)`` where ``next_cursor`` is |
| 1226 | ``None`` on the last page. |
| 1227 | """ |
| 1228 | import datetime as _dt |
| 1229 | from sqlalchemy import func, select |
| 1230 | |
| 1231 | total_result = await session.execute( |
| 1232 | select(func.count(MusehubSession.session_id)).where( |
| 1233 | MusehubSession.repo_id == repo_id |
| 1234 | ) |
| 1235 | ) |
| 1236 | total = total_result.scalar_one() |
| 1237 | |
| 1238 | stmt = ( |
| 1239 | select(MusehubSession) |
| 1240 | .where(MusehubSession.repo_id == repo_id) |
| 1241 | .order_by(MusehubSession.is_active.desc(), MusehubSession.started_at.desc()) |
| 1242 | .limit(limit + 1) |
| 1243 | ) |
| 1244 | if cursor: |
| 1245 | cursor_dt = _dt.datetime.fromisoformat(cursor) |
| 1246 | # Active sessions always sort first; cursor only filters the started_at dimension |
| 1247 | # so we skip rows already seen by checking started_at < cursor_dt. |
| 1248 | stmt = stmt.where(MusehubSession.started_at < cursor_dt) |
| 1249 | |
| 1250 | result = await session.execute(stmt) |
| 1251 | rows = result.scalars().all() |
| 1252 | |
| 1253 | has_more = len(rows) > limit |
| 1254 | page_rows = rows[:limit] |
| 1255 | next_cursor: str | None = None |
| 1256 | if has_more and page_rows: |
| 1257 | next_cursor = page_rows[-1].started_at.isoformat() |
| 1258 | |
| 1259 | return [_to_session_response(s) for s in page_rows], total, next_cursor |
| 1260 | |
| 1261 | |
| 1262 | async def get_session( |
| 1263 | session: AsyncSession, |
| 1264 | repo_id: str, |
| 1265 | session_id: str, |
| 1266 | ) -> SessionResponse | None: |
| 1267 | """Fetch a single session by id.""" |
| 1268 | from sqlalchemy import select |
| 1269 | |
| 1270 | result = await session.execute( |
| 1271 | select(MusehubSession).where( |
| 1272 | MusehubSession.session_id == session_id, |
| 1273 | MusehubSession.repo_id == repo_id, |
| 1274 | ) |
| 1275 | ) |
| 1276 | row = result.scalar_one_or_none() |
| 1277 | if row is None: |
| 1278 | return None |
| 1279 | return _to_session_response(row) |
| 1280 | |
| 1281 | |
| 1282 | async def resolve_head_ref(session: AsyncSession, repo_id: str) -> str: |
| 1283 | """Resolve the symbolic "HEAD" ref to the repo's default branch name. |
| 1284 | |
| 1285 | Prefers "main" when that branch exists; otherwise returns the |
| 1286 | lexicographically first branch name, and falls back to "main" when the |
| 1287 | repo has no branches yet. |
| 1288 | """ |
| 1289 | branch_stmt = ( |
| 1290 | select(MusehubBranch) |
| 1291 | .where(MusehubBranch.repo_id == repo_id) |
| 1292 | .order_by(MusehubBranch.name) |
| 1293 | ) |
| 1294 | branches = (await session.execute(branch_stmt)).scalars().all() |
| 1295 | if not branches: |
| 1296 | return "main" |
| 1297 | names = [b.name for b in branches] |
| 1298 | return "main" if "main" in names else names[0] |
| 1299 | |
| 1300 | |
| 1301 | async def resolve_ref_for_tree( |
| 1302 | session: AsyncSession, repo_id: str, ref: str |
| 1303 | ) -> bool: |
| 1304 | """Return True if ref resolves to a known branch or commit in this repo. |
| 1305 | |
| 1306 | The ref can be: |
| 1307 | - ``"HEAD"`` — always valid; resolves to the default branch. |
| 1308 | - A branch name (e.g. "main", "feature/groove") — validated via the |
| 1309 | musehub_branches table. |
| 1310 | - A commit ID prefix or full SHA — validated via musehub_commits. |
| 1311 | |
| 1312 | Returns False if the ref is unknown, which the caller should surface as |
| 1313 | a 404. This is a lightweight existence check; callers that need the full |
| 1314 | commit object should call ``get_commit()`` separately. |
| 1315 | """ |
| 1316 | if ref == "HEAD": |
| 1317 | return True |
| 1318 | |
| 1319 | branch_stmt = select(MusehubBranch).where( |
| 1320 | MusehubBranch.repo_id == repo_id, |
| 1321 | MusehubBranch.name == ref, |
| 1322 | ) |
| 1323 | branch_row = (await session.execute(branch_stmt)).scalars().first() |
| 1324 | if branch_row is not None: |
| 1325 | return True |
| 1326 | |
| 1327 | ref_row = await session.get(MusehubCommitRef, (repo_id, ref)) |
| 1328 | return ref_row is not None |
| 1329 | |
| 1330 | |
| 1331 | async def _get_head_snapshot_manifest( |
| 1332 | session: AsyncSession, |
| 1333 | repo_id: str, |
| 1334 | ref: str, |
| 1335 | ) -> StrDict: |
| 1336 | """Return the ``{path: object_id}`` manifest for the HEAD commit on *ref*. |
| 1337 | |
| 1338 | Falls back to an empty dict when no snapshot exists (e.g. new empty repo). |
| 1339 | """ |
| 1340 | # Resolve branch head → commit_id |
| 1341 | branch_row = ( |
| 1342 | await session.execute( |
| 1343 | select(MusehubBranch).where( |
| 1344 | MusehubBranch.repo_id == repo_id, |
| 1345 | MusehubBranch.name == ref, |
| 1346 | ) |
| 1347 | ) |
| 1348 | ).scalar_one_or_none() |
| 1349 | |
| 1350 | if branch_row is None or not branch_row.head_commit_id: |
| 1351 | return {} |
| 1352 | |
| 1353 | head_commit = ( |
| 1354 | await session.execute( |
| 1355 | select(MusehubCommit).where( |
| 1356 | MusehubCommit.commit_id == branch_row.head_commit_id |
| 1357 | ) |
| 1358 | ) |
| 1359 | ).scalar_one_or_none() |
| 1360 | |
| 1361 | if head_commit is None or head_commit.snapshot_id is None: |
| 1362 | return {} |
| 1363 | |
| 1364 | from musehub.services.musehub_snapshot import get_snapshot_manifest |
| 1365 | return await get_snapshot_manifest(session, head_commit.snapshot_id) |
| 1366 | |
| 1367 | |
| 1368 | def _manifest_to_tree( |
| 1369 | manifest: StrDict, |
| 1370 | dir_path: str, |
| 1371 | ) -> tuple[list[TreeEntryResponse], list[TreeEntryResponse]]: |
| 1372 | """Build sorted (dirs, files) tree entries from a snapshot manifest. |
| 1373 | |
| 1374 | ``dir_path`` is the directory prefix to list (empty = repo root). |
| 1375 | Returns (dirs, files) each sorted alphabetically. |
| 1376 | """ |
| 1377 | prefix = f"{dir_path.strip('/')}/" if dir_path.strip("/") else "" |
| 1378 | seen_dirs: set[str] = set() |
| 1379 | dirs: list[TreeEntryResponse] = [] |
| 1380 | files: list[TreeEntryResponse] = [] |
| 1381 | |
| 1382 | for path, object_id in manifest.items(): |
| 1383 | norm = path.lstrip("/") |
| 1384 | if not norm.startswith(prefix): |
| 1385 | continue |
| 1386 | remainder = norm[len(prefix):] |
| 1387 | if not remainder: |
| 1388 | continue |
| 1389 | slash_pos = remainder.find("/") |
| 1390 | if slash_pos == -1: |
| 1391 | files.append( |
| 1392 | TreeEntryResponse( |
| 1393 | type="file", |
| 1394 | name=remainder, |
| 1395 | path=norm, |
| 1396 | size_bytes=None, |
| 1397 | object_id=object_id, |
| 1398 | ) |
| 1399 | ) |
| 1400 | else: |
| 1401 | dir_name = remainder[:slash_pos] |
| 1402 | if dir_name not in seen_dirs: |
| 1403 | seen_dirs.add(dir_name) |
| 1404 | dirs.append( |
| 1405 | TreeEntryResponse( |
| 1406 | type="dir", |
| 1407 | name=dir_name, |
| 1408 | path=prefix + dir_name, |
| 1409 | size_bytes=None, |
| 1410 | object_id=None, |
| 1411 | ) |
| 1412 | ) |
| 1413 | |
| 1414 | dirs.sort(key=lambda e: e.name) |
| 1415 | files.sort(key=lambda e: e.name) |
| 1416 | return dirs, files |
| 1417 | |
| 1418 | |
| 1419 | async def list_tree( |
| 1420 | session: AsyncSession, |
| 1421 | repo_id: str, |
| 1422 | owner: str, |
| 1423 | repo_slug: str, |
| 1424 | ref: str, |
| 1425 | dir_path: str, |
| 1426 | manifest: StrDict | None = None, |
| 1427 | ) -> TreeListResponse: |
| 1428 | """Build a directory listing for the tree browser via the snapshot manifest. |
| 1429 | |
| 1430 | Resolves: ref → HEAD commit → snapshot manifest → directory entries. |
| 1431 | Returns an empty listing when no snapshot manifest exists for the ref. |
| 1432 | Pass ``manifest`` to skip the fetch when the caller already has it. |
| 1433 | """ |
| 1434 | if manifest is None: |
| 1435 | manifest = await _get_head_snapshot_manifest(session, repo_id, ref) |
| 1436 | dirs, files = _manifest_to_tree(manifest or {}, dir_path) |
| 1437 | return TreeListResponse( |
| 1438 | owner=owner, |
| 1439 | repo_slug=repo_slug, |
| 1440 | ref=ref, |
| 1441 | dir_path=dir_path.strip("/"), |
| 1442 | entries=dirs + files, |
| 1443 | ) |
| 1444 | |
| 1445 | |
| 1446 | async def _resolve_ref_to_commit( |
| 1447 | session: AsyncSession, repo_id: str, ref: str |
| 1448 | ) -> MusehubCommit | None: |
| 1449 | """Resolve a branch name or commit SHA to a commit row. |
| 1450 | |
| 1451 | Tries branch lookup first, then falls back to direct commit_id lookup |
| 1452 | so both ``main`` and full/partial SHAs work. |
| 1453 | """ |
| 1454 | # 1. Try branch |
| 1455 | branch_row = ( |
| 1456 | await session.execute( |
| 1457 | select(MusehubBranch).where( |
| 1458 | MusehubBranch.repo_id == repo_id, |
| 1459 | MusehubBranch.name == ref, |
| 1460 | ) |
| 1461 | ) |
| 1462 | ).scalar_one_or_none() |
| 1463 | if branch_row and branch_row.head_commit_id: |
| 1464 | return await session.get(MusehubCommit, branch_row.head_commit_id) |
| 1465 | |
| 1466 | # 2. Try exact commit_id match |
| 1467 | ref_row = await session.get(MusehubCommitRef, (repo_id, ref)) |
| 1468 | if ref_row is not None: |
| 1469 | row = await session.get(MusehubCommit, ref) |
| 1470 | if row: |
| 1471 | return row |
| 1472 | |
| 1473 | # 3. Prefix match (short SHA) |
| 1474 | if len(ref) >= 7: |
| 1475 | row = ( |
| 1476 | await session.execute( |
| 1477 | select(MusehubCommit) |
| 1478 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 1479 | .where( |
| 1480 | MusehubCommitRef.repo_id == repo_id, |
| 1481 | MusehubCommit.commit_id.like(f"{ref}%"), |
| 1482 | ).limit(1) |
| 1483 | ) |
| 1484 | ).scalar_one_or_none() |
| 1485 | if row: |
| 1486 | return row |
| 1487 | |
| 1488 | return None |
| 1489 | |
| 1490 | |
| 1491 | async def get_file_at_ref( |
| 1492 | session: AsyncSession, |
| 1493 | repo_id: str, |
| 1494 | ref: str, |
| 1495 | file_path: str, |
| 1496 | ) -> JSONObject | None: |
| 1497 | """Resolve a file path at a given ref via the snapshot manifest. |
| 1498 | |
| 1499 | Looks up: ref → commit → snapshot → manifest[file_path] → object_id, |
| 1500 | then returns metadata. Content bytes are intentionally NOT returned here |
| 1501 | (callers fetch via the storage backend directly to avoid loading into memory |
| 1502 | unless needed). |
| 1503 | |
| 1504 | Returns a dict with: |
| 1505 | - ``object_id``: content-addressed SHA |
| 1506 | - ``snapshot_id``: the snapshot this file belongs to |
| 1507 | - ``commit_id``: resolved commit SHA |
| 1508 | - ``path``: normalised file path |
| 1509 | |
| 1510 | Returns None when the ref or file is not found. |
| 1511 | """ |
| 1512 | commit = await _resolve_ref_to_commit(session, repo_id, ref) |
| 1513 | if commit is None or commit.snapshot_id is None: |
| 1514 | return None |
| 1515 | |
| 1516 | from musehub.services.musehub_snapshot import get_snapshot_manifest |
| 1517 | manifest = await get_snapshot_manifest(session, commit.snapshot_id) |
| 1518 | norm_path = file_path.lstrip("/") |
| 1519 | object_id = manifest.get(norm_path) |
| 1520 | if object_id is None: |
| 1521 | return None |
| 1522 | |
| 1523 | return { |
| 1524 | "object_id": object_id, |
| 1525 | "snapshot_id": commit.snapshot_id, |
| 1526 | "commit_id": commit.commit_id, |
| 1527 | "path": norm_path, |
| 1528 | "manifest_size": len(manifest), |
| 1529 | } |
| 1530 | |
| 1531 | |
| 1532 | async def get_last_commit_for_file( |
| 1533 | session: AsyncSession, |
| 1534 | repo_id: str, |
| 1535 | file_path: str, |
| 1536 | current_commit_id: str, |
| 1537 | ) -> MusehubCommit | None: |
| 1538 | """Return the most recent commit that changed ``file_path``. |
| 1539 | |
| 1540 | Fast path: query musehub_symbol_history_entries by (repo_id, address) |
| 1541 | using the ix_symbol_history_repo_address index — O(1) regardless of |
| 1542 | repo size. Matches both bare file entries (address == path) and |
| 1543 | symbol-level entries (address starts with path::). |
| 1544 | |
| 1545 | Fallback: when no history entries exist for the file (e.g. the file |
| 1546 | predates indexing), walks up to 200 snapshot manifests as before. |
| 1547 | """ |
| 1548 | norm = file_path.lstrip("/") |
| 1549 | |
| 1550 | # ── Fast path: symbol history index ────────────────────────────────────── |
| 1551 | history_stmt = ( |
| 1552 | select(MusehubSymbolHistoryEntry) |
| 1553 | .where( |
| 1554 | MusehubSymbolHistoryEntry.repo_id == repo_id, |
| 1555 | (MusehubSymbolHistoryEntry.address == norm) |
| 1556 | | MusehubSymbolHistoryEntry.address.like(f"{norm}::%"), |
| 1557 | ) |
| 1558 | .order_by(desc(MusehubSymbolHistoryEntry.committed_at)) |
| 1559 | .limit(1) |
| 1560 | ) |
| 1561 | history_row = (await session.execute(history_stmt)).scalars().first() |
| 1562 | if history_row is not None: |
| 1563 | return await session.get(MusehubCommit, history_row.commit_id) |
| 1564 | |
| 1565 | # ── Fallback: snapshot manifest scan ───────────────────────────────────── |
| 1566 | current_commit = await session.get(MusehubCommit, current_commit_id) |
| 1567 | if current_commit is None or current_commit.snapshot_id is None: |
| 1568 | return current_commit |
| 1569 | |
| 1570 | stmt = ( |
| 1571 | select(MusehubCommit) |
| 1572 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 1573 | .where( |
| 1574 | MusehubCommitRef.repo_id == repo_id, |
| 1575 | MusehubCommit.branch == (current_commit.branch or "main"), |
| 1576 | MusehubCommit.timestamp <= current_commit.timestamp, |
| 1577 | ) |
| 1578 | .order_by(desc(MusehubCommit.timestamp)) |
| 1579 | .limit(200) |
| 1580 | ) |
| 1581 | rows = (await session.execute(stmt)).scalars().all() |
| 1582 | |
| 1583 | snapshot_ids = [r.snapshot_id for r in rows if r.snapshot_id] |
| 1584 | manifests: dict[str, dict] = {} |
| 1585 | for i in range(0, len(snapshot_ids), 100): |
| 1586 | chunk = await get_snapshot_manifests_batch(session, snapshot_ids[i:i + 100]) |
| 1587 | manifests.update(chunk) |
| 1588 | |
| 1589 | current_oid = manifests.get(current_commit.snapshot_id, {}).get(norm) |
| 1590 | if current_oid is None: |
| 1591 | return None |
| 1592 | |
| 1593 | prev_commit: MusehubCommit | None = current_commit |
| 1594 | for row in rows: |
| 1595 | if row.snapshot_id is None: |
| 1596 | continue |
| 1597 | oid = manifests.get(row.snapshot_id, {}).get(norm) |
| 1598 | if oid != current_oid: |
| 1599 | break |
| 1600 | prev_commit = row |
| 1601 | |
| 1602 | return prev_commit |
| 1603 | |
| 1604 | |
| 1605 | async def get_snapshot_diff( |
| 1606 | session: AsyncSession, |
| 1607 | repo_id: str, |
| 1608 | commit_snapshot_id: str | None, |
| 1609 | parent_snapshot_id: str | None, |
| 1610 | ) -> JSONObject: |
| 1611 | """Diff two snapshot manifests, returning file-level change lists. |
| 1612 | |
| 1613 | Returns a dict with: |
| 1614 | - ``added``: files present in the new snapshot but not the parent |
| 1615 | - ``removed``: files present in the parent but not the new snapshot |
| 1616 | - ``modified``: files present in both but with different object IDs |
| 1617 | - ``unchanged``: count only (not listed, to keep payload small) |
| 1618 | """ |
| 1619 | from musehub.services.musehub_snapshot import get_snapshot_manifest |
| 1620 | new_manifest: StrDict = {} |
| 1621 | old_manifest: StrDict = {} |
| 1622 | |
| 1623 | if commit_snapshot_id: |
| 1624 | new_manifest = await get_snapshot_manifest(session, commit_snapshot_id) |
| 1625 | |
| 1626 | if parent_snapshot_id: |
| 1627 | old_manifest = await get_snapshot_manifest(session, parent_snapshot_id) |
| 1628 | |
| 1629 | added: list[str] = sorted(p for p in new_manifest if p not in old_manifest) |
| 1630 | removed: list[str] = sorted(p for p in old_manifest if p not in new_manifest) |
| 1631 | modified: list[str] = sorted( |
| 1632 | p for p in new_manifest |
| 1633 | if p in old_manifest and new_manifest[p] != old_manifest[p] |
| 1634 | ) |
| 1635 | |
| 1636 | return { |
| 1637 | "added": added, |
| 1638 | "removed": removed, |
| 1639 | "modified": modified, |
| 1640 | "total_files": len(new_manifest), |
| 1641 | } |
| 1642 | |
| 1643 | |
| 1644 | async def get_repo_home_stats( |
| 1645 | session: AsyncSession, |
| 1646 | repo_id: str, |
| 1647 | ref: str, |
| 1648 | manifest: StrDict | None = None, |
| 1649 | ) -> JSONObject: |
| 1650 | """Return aggregate stats for the repo home page. |
| 1651 | |
| 1652 | Returns a dict with: |
| 1653 | - ``total_commits``: int — total commit count across all branches |
| 1654 | - ``total_objects``: int — number of stored objects |
| 1655 | - ``total_size_bytes``: int — sum of all object sizes |
| 1656 | - ``commit_activity``: list[int] — daily commit counts for the last 14 days (oldest first) |
| 1657 | """ |
| 1658 | from datetime import timedelta |
| 1659 | |
| 1660 | total_commits: int = ( |
| 1661 | await session.execute( |
| 1662 | select(func.count()).select_from(MusehubCommitRef).where(MusehubCommitRef.repo_id == repo_id) |
| 1663 | ) |
| 1664 | ).scalar_one() or 0 |
| 1665 | |
| 1666 | obj_agg = ( |
| 1667 | await session.execute( |
| 1668 | select( |
| 1669 | func.count().label("cnt"), |
| 1670 | func.coalesce(func.sum(MusehubObject.size_bytes), 0).label("sz"), |
| 1671 | ) |
| 1672 | .join( |
| 1673 | MusehubObjectRef, |
| 1674 | MusehubObject.object_id == MusehubObjectRef.object_id, |
| 1675 | ) |
| 1676 | .where(MusehubObjectRef.repo_id == repo_id) |
| 1677 | ) |
| 1678 | ).one() |
| 1679 | total_objects = int(obj_agg.cnt or 0) |
| 1680 | total_size_bytes = int(obj_agg.sz or 0) |
| 1681 | |
| 1682 | # File count from HEAD snapshot manifest |
| 1683 | if manifest is None: |
| 1684 | manifest = await _get_head_snapshot_manifest(session, repo_id, ref) |
| 1685 | |
| 1686 | # Daily commit activity for last 14 days |
| 1687 | now = datetime.now(tz=timezone.utc) |
| 1688 | fourteen_days_ago = now - timedelta(days=14) |
| 1689 | recent_rows = ( |
| 1690 | await session.execute( |
| 1691 | select(MusehubCommit.timestamp) |
| 1692 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 1693 | .where( |
| 1694 | MusehubCommitRef.repo_id == repo_id, |
| 1695 | MusehubCommit.timestamp >= fourteen_days_ago, |
| 1696 | ) |
| 1697 | .order_by(MusehubCommit.timestamp) |
| 1698 | ) |
| 1699 | ).scalars().all() |
| 1700 | |
| 1701 | # Bucket into 14 daily bins |
| 1702 | daily: list[int] = [0] * 14 |
| 1703 | for ts in recent_rows: |
| 1704 | t = ts if ts.tzinfo else ts.replace(tzinfo=timezone.utc) |
| 1705 | day_idx = (now - t).days |
| 1706 | if 0 <= day_idx < 14: |
| 1707 | daily[13 - day_idx] += 1 |
| 1708 | |
| 1709 | return { |
| 1710 | "total_commits": total_commits, |
| 1711 | "total_objects": total_objects, |
| 1712 | "total_size_bytes": total_size_bytes, |
| 1713 | "commit_activity": daily, |
| 1714 | "total_files": len(manifest), |
| 1715 | } |
| 1716 | |
| 1717 | |
| 1718 | async def get_file_last_commits( |
| 1719 | session: AsyncSession, |
| 1720 | repo_id: str, |
| 1721 | paths: list[str], |
| 1722 | ref: str = "", |
| 1723 | max_commits: int = 60, |
| 1724 | ) -> FileLastCommits: |
| 1725 | """Return the last-touching commit for each file/directory path. |
| 1726 | |
| 1727 | Reads from the materialized musehub_file_last_commits table (populated at |
| 1728 | push time). Falls back to the old blob-walk if the table has no rows for |
| 1729 | this repo/branch (e.g. repos pushed before the migration). |
| 1730 | |
| 1731 | ``ref`` should be the branch name. When empty, falls back to reading the |
| 1732 | repo's default branch. |
| 1733 | """ |
| 1734 | import re as _re |
| 1735 | from datetime import timezone as _tz |
| 1736 | |
| 1737 | if not paths: |
| 1738 | return {} |
| 1739 | |
| 1740 | branch = ref or "" |
| 1741 | |
| 1742 | def _row_to_record(row: MusehubFileLastCommit) -> StrDict: |
| 1743 | ts = row.commit_timestamp |
| 1744 | if ts.tzinfo is None: |
| 1745 | ts = ts.replace(tzinfo=_tz.utc) |
| 1746 | model_id: str = row.model_id or "" |
| 1747 | parts = model_id.replace("claude-", "").split("-") |
| 1748 | model_label = parts[0] if parts and parts[0] else model_id |
| 1749 | msg = (row.commit_message or "").split("\n")[0][:72] |
| 1750 | _ct = _re.match(r"^(feat|fix|docs|style|refactor|perf|test|chore|build|ci|revert)(\([^)]+\))?(!)?:", msg.strip()) |
| 1751 | commit_type = _ct.group(1) if _ct else "" |
| 1752 | return { |
| 1753 | "sha": row.commit_id, |
| 1754 | "message": msg, |
| 1755 | "author": row.commit_author or "", |
| 1756 | "timestamp": ts.isoformat(), |
| 1757 | "agentId": row.agent_id or "", |
| 1758 | "modelId": model_id, |
| 1759 | "modelLabel": model_label, |
| 1760 | "commitType": commit_type, |
| 1761 | } |
| 1762 | |
| 1763 | # Fetch all rows for this repo+branch in one query, then filter in Python. |
| 1764 | rows_result = await session.execute( |
| 1765 | select(MusehubFileLastCommit).where( |
| 1766 | MusehubFileLastCommit.repo_id == repo_id, |
| 1767 | MusehubFileLastCommit.branch == branch, |
| 1768 | ) |
| 1769 | ) |
| 1770 | all_rows: list[MusehubFileLastCommit] = list(rows_result.scalars().all()) |
| 1771 | |
| 1772 | if all_rows: |
| 1773 | # Build path→row map for exact lookups. |
| 1774 | by_path: dict[str, MusehubFileLastCommit] = {r.path: r for r in all_rows} |
| 1775 | |
| 1776 | result: FileLastCommits = {} |
| 1777 | for p in paths: |
| 1778 | if p in by_path: |
| 1779 | result[p] = _row_to_record(by_path[p]) |
| 1780 | else: |
| 1781 | # Directory: find the most recently touched file under this prefix. |
| 1782 | prefix = f"{p.rstrip('/')}/" |
| 1783 | best: MusehubFileLastCommit | None = None |
| 1784 | for row in all_rows: |
| 1785 | if row.path.startswith(prefix): |
| 1786 | if best is None or row.commit_timestamp > best.commit_timestamp: |
| 1787 | best = row |
| 1788 | if best is not None: |
| 1789 | result[p] = _row_to_record(best) |
| 1790 | return result |
| 1791 | |
| 1792 | # --- Fallback: no materialized data yet — walk blobs (old behaviour). --- |
| 1793 | commits_result = await session.execute( |
| 1794 | select(MusehubCommit) |
| 1795 | .join(MusehubCommitRef, MusehubCommitRef.commit_id == MusehubCommit.commit_id) |
| 1796 | .where(MusehubCommitRef.repo_id == repo_id) |
| 1797 | .order_by(MusehubCommit.timestamp.desc()) |
| 1798 | .limit(max_commits) |
| 1799 | ) |
| 1800 | commits = list(commits_result.scalars().all()) |
| 1801 | |
| 1802 | from musehub.services.musehub_snapshot import get_snapshot_manifests_batch |
| 1803 | snap_ids = [c.snapshot_id for c in commits if c.snapshot_id] |
| 1804 | if not snap_ids: |
| 1805 | return {} |
| 1806 | |
| 1807 | snap_by_id = await get_snapshot_manifests_batch(session, snap_ids) |
| 1808 | |
| 1809 | def _commit_record(c: MusehubCommit) -> StrDict: |
| 1810 | ts = c.timestamp |
| 1811 | if ts.tzinfo is None: |
| 1812 | ts = ts.replace(tzinfo=_tz.utc) |
| 1813 | agent_id: str = c.agent_id or "" |
| 1814 | model_id: str = c.model_id or "" |
| 1815 | parts = model_id.replace("claude-", "").split("-") |
| 1816 | model_label = parts[0] if parts and parts[0] else model_id |
| 1817 | _ct = _re.match(r"^(feat|fix|docs|style|refactor|perf|test|chore|build|ci|revert)(\([^)]+\))?(!)?:", c.message.strip()) |
| 1818 | commit_type = _ct.group(1) if _ct else "" |
| 1819 | return { |
| 1820 | "sha": c.commit_id, |
| 1821 | "message": c.message.split("\n")[0][:72], |
| 1822 | "author": c.author, |
| 1823 | "timestamp": ts.isoformat(), |
| 1824 | "agentId": agent_id, |
| 1825 | "modelId": model_id, |
| 1826 | "modelLabel": model_label, |
| 1827 | "commitType": commit_type, |
| 1828 | } |
| 1829 | |
| 1830 | fb_result: FileLastCommits = {} |
| 1831 | remaining = set(paths) |
| 1832 | prev_manifest: StrDict = {} |
| 1833 | prev_commit: MusehubCommit | None = None |
| 1834 | |
| 1835 | for commit in commits: |
| 1836 | if not remaining: |
| 1837 | break |
| 1838 | cur_manifest = snap_by_id.get(commit.snapshot_id or "", {}) |
| 1839 | if prev_commit is not None: |
| 1840 | claimed: set[str] = set() |
| 1841 | for p in list(remaining): |
| 1842 | cur_oid = cur_manifest.get(p) |
| 1843 | prev_oid = prev_manifest.get(p) |
| 1844 | if prev_oid and cur_oid != prev_oid: |
| 1845 | fb_result[p] = _commit_record(prev_commit) |
| 1846 | claimed.add(p) |
| 1847 | remaining -= claimed |
| 1848 | prev_manifest = cur_manifest |
| 1849 | prev_commit = commit |
| 1850 | |
| 1851 | if prev_commit is not None: |
| 1852 | for p in list(remaining): |
| 1853 | if prev_manifest.get(p): |
| 1854 | fb_result[p] = _commit_record(prev_commit) |
| 1855 | |
| 1856 | unclaimed_dirs = set(paths) - set(fb_result.keys()) |
| 1857 | for dir_path in unclaimed_dirs: |
| 1858 | prefix = f"{dir_path.rstrip('/')}/" |
| 1859 | dir_prev_manifest: StrDict = {} |
| 1860 | dir_prev_commit: MusehubCommit | None = None |
| 1861 | for commit in commits: |
| 1862 | cur_m = snap_by_id.get(commit.snapshot_id or "", {}) |
| 1863 | if dir_prev_commit is not None: |
| 1864 | if any( |
| 1865 | fp.startswith(prefix) and cur_m.get(fp) != dir_prev_manifest.get(fp) |
| 1866 | for fp in dir_prev_manifest |
| 1867 | if fp.startswith(prefix) |
| 1868 | ): |
| 1869 | fb_result[dir_path] = _commit_record(dir_prev_commit) |
| 1870 | break |
| 1871 | dir_prev_manifest = cur_m |
| 1872 | dir_prev_commit = commit |
| 1873 | if dir_path not in fb_result and dir_prev_commit is not None: |
| 1874 | if any(fp.startswith(prefix) for fp in dir_prev_manifest): |
| 1875 | fb_result[dir_path] = _commit_record(dir_prev_commit) |
| 1876 | |
| 1877 | return fb_result |
| 1878 | |
| 1879 | |
| 1880 | async def get_recently_pushed_branches( |
| 1881 | session: AsyncSession, |
| 1882 | repo_id: str, |
| 1883 | current_ref: str, |
| 1884 | within_hours: int = 72, |
| 1885 | ) -> list[StrDict]: |
| 1886 | """Return branches (other than current_ref) whose head commit is recent. |
| 1887 | |
| 1888 | Used to render GitHub-style "branch had recent pushes N minutes ago" banners. |
| 1889 | Returns list of ``{name, sha, message, timestamp}`` sorted newest-first. |
| 1890 | """ |
| 1891 | from datetime import timezone as _tz, timedelta |
| 1892 | |
| 1893 | branches_result = await session.execute( |
| 1894 | select(MusehubBranch).where(MusehubBranch.repo_id == repo_id) |
| 1895 | ) |
| 1896 | branches = [ |
| 1897 | b for b in branches_result.scalars().all() |
| 1898 | if b.name != current_ref and b.head_commit_id |
| 1899 | ] |
| 1900 | if not branches: |
| 1901 | return [] |
| 1902 | |
| 1903 | head_ids = [b.head_commit_id for b in branches if b.head_commit_id] |
| 1904 | commits_result = await session.execute( |
| 1905 | select(MusehubCommit).where(MusehubCommit.commit_id.in_(head_ids)) |
| 1906 | ) |
| 1907 | commit_by_id = { |
| 1908 | c.commit_id: c for c in commits_result.scalars().all() |
| 1909 | } |
| 1910 | |
| 1911 | cutoff = datetime.now(_tz.utc) - timedelta(hours=within_hours) |
| 1912 | recent = [] |
| 1913 | for branch in branches: |
| 1914 | commit = commit_by_id.get(branch.head_commit_id or "") |
| 1915 | if not commit: |
| 1916 | continue |
| 1917 | ts = commit.timestamp |
| 1918 | if ts.tzinfo is None: |
| 1919 | ts = ts.replace(tzinfo=_tz.utc) |
| 1920 | if ts >= cutoff: |
| 1921 | recent.append({ |
| 1922 | "name": branch.name, |
| 1923 | "sha": commit.commit_id, |
| 1924 | "message": commit.message.split("\n")[0][:72], |
| 1925 | "timestamp": ts.isoformat(), |
| 1926 | }) |
| 1927 | |
| 1928 | recent.sort(key=lambda x: x["timestamp"], reverse=True) |
| 1929 | return recent |
| 1930 | |
| 1931 | |
| 1932 | async def _unique_slug_for_owner( |
| 1933 | db_session: AsyncSession, |
| 1934 | owner: str, |
| 1935 | base_slug: str, |
| 1936 | ) -> str: |
| 1937 | """Return a slug that does not collide with any existing (non-deleted) repo for ``owner``. |
| 1938 | |
| 1939 | If ``base_slug`` is taken it appends ``-2``, ``-3``, … (up to ``-100``) until |
| 1940 | it finds an available name. This mirrors GitHub's fork-naming behaviour and |
| 1941 | prevents the duplicate-slug ``IntegrityError`` from being misreported as a |
| 1942 | duplicate-fork 409 at the route layer. |
| 1943 | |
| 1944 | Raises ``ValueError("cannot_generate_unique_slug")`` if all 100 suffixes are |
| 1945 | already taken — an extreme edge case that should never occur in practice. |
| 1946 | """ |
| 1947 | slug = base_slug |
| 1948 | for suffix in range(2, 101): |
| 1949 | exists = ( |
| 1950 | await db_session.execute( |
| 1951 | select(MusehubRepo.repo_id).where( |
| 1952 | MusehubRepo.owner == owner, |
| 1953 | MusehubRepo.slug == slug, |
| 1954 | ) |
| 1955 | ) |
| 1956 | ).scalar_one_or_none() |
| 1957 | if exists is None: |
| 1958 | return slug |
| 1959 | slug = f"{base_slug[:60]}-{suffix}" |
| 1960 | raise ValueError("cannot_generate_unique_slug") |
| 1961 | |
| 1962 | |
| 1963 | async def fork_repo( |
| 1964 | db_session: AsyncSession, |
| 1965 | *, |
| 1966 | source_repo_id: str, |
| 1967 | forked_by_handle: str, |
| 1968 | request: ForkRepoRequest, |
| 1969 | ) -> UserForkedRepoEntry: |
| 1970 | """Fork a repo — creates a new public repo owned by ``forked_by_handle`` and |
| 1971 | records the relationship in ``musehub_forks``. |
| 1972 | |
| 1973 | Rules enforced here (callers must also enforce via HTTP layer): |
| 1974 | - Source repo must exist and not be soft-deleted. |
| 1975 | - A handle cannot fork a repo they already own. |
| 1976 | - The same handle cannot fork the same source repo twice (unique constraint). |
| 1977 | |
| 1978 | Slug collisions with repos the caller already owns are resolved automatically by |
| 1979 | appending a numeric suffix (``-2``, ``-3``, …), matching GitHub behaviour. |
| 1980 | |
| 1981 | Returns the newly created fork entry with source attribution. |
| 1982 | Raises ``ValueError`` for business-rule violations; callers map these to HTTP errors. |
| 1983 | Raises ``sqlalchemy.exc.IntegrityError`` on duplicate fork (unique constraint). |
| 1984 | """ |
| 1985 | # Resolve source repo. |
| 1986 | source_row = ( |
| 1987 | await db_session.execute( |
| 1988 | select(MusehubRepo).where( |
| 1989 | MusehubRepo.repo_id == source_repo_id, |
| 1990 | ) |
| 1991 | ) |
| 1992 | ).scalar_one_or_none() |
| 1993 | |
| 1994 | if source_row is None: |
| 1995 | raise ValueError("source_repo_not_found") |
| 1996 | |
| 1997 | if source_row.visibility == "private": |
| 1998 | raise ValueError("source_repo_private") |
| 1999 | |
| 2000 | if source_row.owner == forked_by_handle: |
| 2001 | raise ValueError("cannot_fork_own_repo") |
| 2002 | |
| 2003 | # Pre-check: reject duplicate fork before touching the repo table so that |
| 2004 | # any IntegrityError that reaches the caller is unambiguously a duplicate |
| 2005 | # fork, not a slug collision. |
| 2006 | duplicate = ( |
| 2007 | await db_session.execute( |
| 2008 | select(MusehubFork.fork_id).where( |
| 2009 | MusehubFork.source_repo_id == source_repo_id, |
| 2010 | MusehubFork.forked_by == forked_by_handle, |
| 2011 | ) |
| 2012 | ) |
| 2013 | ).scalar_one_or_none() |
| 2014 | if duplicate is not None: |
| 2015 | raise ValueError("duplicate_fork") |
| 2016 | |
| 2017 | # Determine fork repo name/description. Auto-suffix slug to avoid collision |
| 2018 | # with repos the caller already owns (mirrors GitHub behaviour). |
| 2019 | fork_name = request.name or source_row.name |
| 2020 | fork_description = ( |
| 2021 | request.description |
| 2022 | or f"Fork of {source_row.owner}/{source_row.slug}: {source_row.description}".rstrip(": ") |
| 2023 | ) |
| 2024 | base_slug = _generate_slug(fork_name) |
| 2025 | fork_slug = await _unique_slug_for_owner(db_session, forked_by_handle, base_slug) |
| 2026 | |
| 2027 | # Create the fork repo. |
| 2028 | from datetime import datetime, timezone |
| 2029 | _fork_created_at = datetime.now(timezone.utc) |
| 2030 | _fork_owner_id = compute_identity_id(forked_by_handle.encode()) |
| 2031 | _fork_domain_id = source_row.domain_id or "code" |
| 2032 | fork_repo_row = MusehubRepo( |
| 2033 | repo_id=compute_repo_id(_fork_owner_id, fork_slug, _fork_domain_id, _fork_created_at.isoformat()), |
| 2034 | name=fork_name, |
| 2035 | owner=forked_by_handle, |
| 2036 | slug=fork_slug, |
| 2037 | visibility=request.visibility or "public", |
| 2038 | owner_user_id=forked_by_handle, |
| 2039 | description=fork_description, |
| 2040 | tags=list(source_row.tags or []), |
| 2041 | settings=None, |
| 2042 | created_at=_fork_created_at, |
| 2043 | updated_at=_fork_created_at, |
| 2044 | domain_id=_fork_domain_id, |
| 2045 | default_branch="main", |
| 2046 | ) |
| 2047 | db_session.add(fork_repo_row) |
| 2048 | await db_session.flush() |
| 2049 | await db_session.refresh(fork_repo_row) |
| 2050 | |
| 2051 | # Create the fork relationship record. |
| 2052 | _fork_now = _fork_created_at |
| 2053 | fork_record = MusehubFork( |
| 2054 | fork_id=compute_fork_id(source_repo_id, fork_repo_row.repo_id, _fork_now.isoformat()), |
| 2055 | source_repo_id=source_repo_id, |
| 2056 | fork_repo_id=fork_repo_row.repo_id, |
| 2057 | forked_by=forked_by_handle, |
| 2058 | created_at=_fork_now, |
| 2059 | ) |
| 2060 | db_session.add(fork_record) |
| 2061 | await db_session.flush() |
| 2062 | await db_session.refresh(fork_record) |
| 2063 | |
| 2064 | logger.info( |
| 2065 | "✅ Forked repo %s (%s/%s) → %s (%s/%s) by %s", |
| 2066 | source_repo_id, source_row.owner, source_row.slug, |
| 2067 | fork_repo_row.repo_id, forked_by_handle, fork_slug, |
| 2068 | forked_by_handle, |
| 2069 | ) |
| 2070 | |
| 2071 | return UserForkedRepoEntry( |
| 2072 | fork_id=fork_record.fork_id, |
| 2073 | fork_repo=_to_repo_response(fork_repo_row), |
| 2074 | source_owner=source_row.owner, |
| 2075 | source_slug=source_row.slug, |
| 2076 | forked_at=fork_record.created_at, |
| 2077 | ) |
| 2078 | |
| 2079 | |
| 2080 | async def get_user_forks( |
| 2081 | db_session: AsyncSession, |
| 2082 | username: str, |
| 2083 | visible_to_user: str | None = None, |
| 2084 | ) -> UserForksResponse: |
| 2085 | """Return repos that ``username`` has forked, with source attribution. |
| 2086 | |
| 2087 | Joins ``musehub_forks`` (where ``forked_by`` matches the given username) |
| 2088 | with ``musehub_repos`` twice — once for the fork repo and once for the |
| 2089 | source repo's owner/slug — so callers can render |
| 2090 | "forked from {source_owner}/{source_slug}" on each card. |
| 2091 | |
| 2092 | Private forks are only visible when ``visible_to_user == username`` (the fork |
| 2093 | owner can see their own private forks; unauthenticated or third-party callers |
| 2094 | see only public forks). |
| 2095 | |
| 2096 | Returns forks ordered newest-first. Soft-deleted repos on either side of |
| 2097 | the relationship are excluded. |
| 2098 | """ |
| 2099 | SourceRepo = aliased(MusehubRepo, name="source_repo") |
| 2100 | ForkRepo = aliased(MusehubRepo, name="fork_repo") |
| 2101 | |
| 2102 | base_stmt = ( |
| 2103 | select(MusehubFork, ForkRepo, SourceRepo) |
| 2104 | .join(ForkRepo, MusehubFork.fork_repo_id == ForkRepo.repo_id) |
| 2105 | .join(SourceRepo, MusehubFork.source_repo_id == SourceRepo.repo_id) |
| 2106 | .where( |
| 2107 | MusehubFork.forked_by == username, |
| 2108 | ) |
| 2109 | .order_by(desc(MusehubFork.created_at)) |
| 2110 | ) |
| 2111 | |
| 2112 | # Unauthenticated callers and third parties see only public forks. |
| 2113 | # The fork owner (visible_to_user == username) sees all their forks. |
| 2114 | stmt = ( |
| 2115 | base_stmt |
| 2116 | if visible_to_user == username |
| 2117 | else base_stmt.where(ForkRepo.visibility == "public") |
| 2118 | ) |
| 2119 | |
| 2120 | rows = (await db_session.execute(stmt)).all() |
| 2121 | |
| 2122 | entries: list[UserForkedRepoEntry] = [ |
| 2123 | UserForkedRepoEntry( |
| 2124 | fork_id=fork_rec.fork_id, |
| 2125 | fork_repo=_to_repo_response(fork_row), |
| 2126 | source_owner=src_row.owner, |
| 2127 | source_slug=src_row.slug, |
| 2128 | forked_at=fork_rec.created_at, |
| 2129 | ) |
| 2130 | for fork_rec, fork_row, src_row in rows |
| 2131 | ] |
| 2132 | |
| 2133 | return UserForksResponse(forks=entries, total=len(entries)) |
| 2134 | |
| 2135 | |
| 2136 | async def list_repo_forks_flat( |
| 2137 | db_session: AsyncSession, |
| 2138 | repo_id: str, |
| 2139 | ) -> UserForksResponse: |
| 2140 | """Return a flat list of all public direct forks of ``repo_id``. |
| 2141 | |
| 2142 | Each entry contains full fork repo metadata plus source owner/slug attribution. |
| 2143 | Ordered newest-first. Soft-deleted fork repos and private forks are excluded — |
| 2144 | private forks are hidden from the source repo's fork list unconditionally |
| 2145 | (a fork owner's private fork is discoverable only via their own forks list). |
| 2146 | """ |
| 2147 | source_row = ( |
| 2148 | await db_session.execute( |
| 2149 | select(MusehubRepo).where( |
| 2150 | MusehubRepo.repo_id == repo_id, |
| 2151 | ) |
| 2152 | ) |
| 2153 | ).scalar_one_or_none() |
| 2154 | |
| 2155 | if source_row is None: |
| 2156 | return UserForksResponse(forks=[], total=0) |
| 2157 | |
| 2158 | ForkRepoAlias = aliased(MusehubRepo) |
| 2159 | |
| 2160 | rows = ( |
| 2161 | await db_session.execute( |
| 2162 | select(MusehubFork, ForkRepoAlias) |
| 2163 | .join(ForkRepoAlias, MusehubFork.fork_repo_id == ForkRepoAlias.repo_id) |
| 2164 | .where( |
| 2165 | MusehubFork.source_repo_id == repo_id, |
| 2166 | ForkRepoAlias.visibility == "public", |
| 2167 | ) |
| 2168 | .order_by(desc(MusehubFork.created_at)) |
| 2169 | ) |
| 2170 | ).all() |
| 2171 | |
| 2172 | entries: list[UserForkedRepoEntry] = [ |
| 2173 | UserForkedRepoEntry( |
| 2174 | fork_id=fork_rec.fork_id, |
| 2175 | fork_repo=_to_repo_response(fork_row), |
| 2176 | source_owner=source_row.owner, |
| 2177 | source_slug=source_row.slug, |
| 2178 | forked_at=fork_rec.created_at, |
| 2179 | ) |
| 2180 | for fork_rec, fork_row in rows |
| 2181 | ] |
| 2182 | |
| 2183 | return UserForksResponse(forks=entries, total=len(entries)) |
| 2184 | |
| 2185 | |
| 2186 | async def list_repo_forks( |
| 2187 | db_session: AsyncSession, |
| 2188 | repo_id: str, |
| 2189 | ) -> ForkNetworkResponse: |
| 2190 | """Return the fork network tree rooted at the given repo. |
| 2191 | |
| 2192 | The root node represents the source repo. Its ``children`` are direct |
| 2193 | forks; each child carries its own ``children`` for second-level forks, |
| 2194 | and so on. ``divergence_commits`` is always 0 at this time — commit-graph |
| 2195 | divergence counting is deferred to a future index. |
| 2196 | |
| 2197 | Private forks are excluded unconditionally — private fork owners' forks are |
| 2198 | discoverable only via their own forks list, not via the source repo's network. |
| 2199 | |
| 2200 | Returns an empty-root ``ForkNetworkResponse`` when the repo does not exist. |
| 2201 | """ |
| 2202 | source_row = ( |
| 2203 | await db_session.execute( |
| 2204 | select(MusehubRepo).where( |
| 2205 | MusehubRepo.repo_id == repo_id, |
| 2206 | ) |
| 2207 | ) |
| 2208 | ).scalar_one_or_none() |
| 2209 | |
| 2210 | if source_row is None: |
| 2211 | return ForkNetworkResponse( |
| 2212 | root=ForkNetworkNode( |
| 2213 | owner="", |
| 2214 | repo_slug="", |
| 2215 | repo_id=repo_id, |
| 2216 | divergence_commits=0, |
| 2217 | forked_by="", |
| 2218 | forked_at=None, |
| 2219 | ), |
| 2220 | total_forks=0, |
| 2221 | ) |
| 2222 | |
| 2223 | # Load all forks in a single query and build the tree in Python. |
| 2224 | # For most repos the fork count is small; if it ever grows large a |
| 2225 | # recursive CTE would replace this approach. |
| 2226 | ForkRepoAlias = aliased(MusehubRepo) |
| 2227 | |
| 2228 | fork_rows = ( |
| 2229 | await db_session.execute( |
| 2230 | select(MusehubFork, ForkRepoAlias) |
| 2231 | .join(ForkRepoAlias, MusehubFork.fork_repo_id == ForkRepoAlias.repo_id) |
| 2232 | .where( |
| 2233 | MusehubFork.source_repo_id == repo_id, |
| 2234 | ForkRepoAlias.visibility == "public", |
| 2235 | ) |
| 2236 | .order_by(MusehubFork.created_at) |
| 2237 | ) |
| 2238 | ).all() |
| 2239 | |
| 2240 | children: list[ForkNetworkNode] = [ |
| 2241 | ForkNetworkNode( |
| 2242 | owner=fork_repo.owner, |
| 2243 | repo_slug=fork_repo.slug, |
| 2244 | repo_id=fork_repo.repo_id, |
| 2245 | divergence_commits=0, |
| 2246 | forked_by=fork_rec.forked_by, |
| 2247 | forked_at=fork_rec.created_at, |
| 2248 | children=[], |
| 2249 | ) |
| 2250 | for fork_rec, fork_repo in fork_rows |
| 2251 | ] |
| 2252 | |
| 2253 | root = ForkNetworkNode( |
| 2254 | owner=source_row.owner, |
| 2255 | repo_slug=source_row.slug, |
| 2256 | repo_id=source_row.repo_id, |
| 2257 | divergence_commits=0, |
| 2258 | forked_by="", |
| 2259 | forked_at=None, |
| 2260 | children=children, |
| 2261 | ) |
| 2262 | |
| 2263 | return ForkNetworkResponse(root=root, total_forks=len(children)) |
| 2264 | |
| 2265 | |
| 2266 | # ── Repo settings helpers ───────────────────────────────────────────────────── |
| 2267 | |
| 2268 | _SETTINGS_DEFAULTS: JSONObject = { |
| 2269 | "default_branch": "main", |
| 2270 | "has_issues": True, |
| 2271 | "has_projects": False, |
| 2272 | "has_wiki": False, |
| 2273 | "license": None, |
| 2274 | "homepage_url": None, |
| 2275 | "allow_merge_commit": True, |
| 2276 | "allow_squash_merge": True, |
| 2277 | "allow_rebase_merge": False, |
| 2278 | "delete_branch_on_merge": True, |
| 2279 | } |
| 2280 | |
| 2281 | |
| 2282 | def _merge_settings(stored: JSONObject | None) -> JSONObject: |
| 2283 | """Return a complete settings dict by filling missing keys with defaults. |
| 2284 | |
| 2285 | ``stored`` may be None (new repos) or a partial dict (old rows that predate |
| 2286 | individual flag additions). Defaults are applied for any absent key so callers |
| 2287 | always receive a fully-populated dict. |
| 2288 | """ |
| 2289 | base = dict(_SETTINGS_DEFAULTS) |
| 2290 | if stored: |
| 2291 | base.update(stored) |
| 2292 | return base |
| 2293 | |
| 2294 | |
| 2295 | async def get_repo_settings( |
| 2296 | session: AsyncSession, repo_id: str |
| 2297 | ) -> RepoSettingsResponse | None: |
| 2298 | """Return the mutable settings for a repo, or None if the repo does not exist. |
| 2299 | |
| 2300 | Combines dedicated column values (name, description, visibility, tags) with |
| 2301 | feature-flag values from the ``settings`` JSON blob. Missing flags are |
| 2302 | back-filled with ``_SETTINGS_DEFAULTS`` so new and legacy repos both return |
| 2303 | a complete response. |
| 2304 | |
| 2305 | Called by ``GET /api/repos/{repo_id}/settings``. |
| 2306 | """ |
| 2307 | row = await session.get(MusehubRepo, repo_id) |
| 2308 | if row is None: |
| 2309 | return None |
| 2310 | |
| 2311 | flags = _merge_settings(row.settings) |
| 2312 | |
| 2313 | # Derive default_branch from stored flag; fall back to "main" |
| 2314 | default_branch = str(flags.get("default_branch") or "main") |
| 2315 | |
| 2316 | return RepoSettingsResponse( |
| 2317 | name=row.name, |
| 2318 | description=row.description, |
| 2319 | visibility=row.visibility, |
| 2320 | default_branch=default_branch, |
| 2321 | has_issues=bool(flags.get("has_issues", True)), |
| 2322 | has_projects=bool(flags.get("has_projects", False)), |
| 2323 | has_wiki=bool(flags.get("has_wiki", False)), |
| 2324 | topics=list(row.tags or []), |
| 2325 | license=str(flags["license"]) if flags.get("license") is not None else None, |
| 2326 | homepage_url=str(flags["homepage_url"]) if flags.get("homepage_url") is not None else None, |
| 2327 | allow_merge_commit=bool(flags.get("allow_merge_commit", True)), |
| 2328 | allow_squash_merge=bool(flags.get("allow_squash_merge", True)), |
| 2329 | allow_rebase_merge=bool(flags.get("allow_rebase_merge", False)), |
| 2330 | delete_branch_on_merge=bool(flags.get("delete_branch_on_merge", True)), |
| 2331 | domain_id=row.domain_id, |
| 2332 | marketplace_domain_id=row.marketplace_domain_id, |
| 2333 | ) |
| 2334 | |
| 2335 | |
| 2336 | async def update_repo_settings( |
| 2337 | session: AsyncSession, |
| 2338 | repo_id: str, |
| 2339 | patch: RepoSettingsPatch, |
| 2340 | *, |
| 2341 | caller_user_id: str | None = None, |
| 2342 | ) -> RepoSettingsResponse | None: |
| 2343 | """Apply a partial settings update to a repo and return the updated settings. |
| 2344 | |
| 2345 | Only non-None fields in ``patch`` are written. Dedicated columns |
| 2346 | (name, description, visibility, tags) are updated directly on the ORM row; |
| 2347 | feature flags are merged into the ``settings`` JSON blob. |
| 2348 | |
| 2349 | Returns None if the repo does not exist. The caller is responsible for |
| 2350 | committing the session after a successful return. |
| 2351 | |
| 2352 | Raises ``ValueError("marketplace_domain_not_found")`` if |
| 2353 | ``patch.marketplace_domain_id`` is a non-empty string that doesn't match |
| 2354 | any registered ``MusehubDomain`` — callers must map this to a 404. |
| 2355 | ``caller_user_id`` is required whenever ``marketplace_domain_id`` is set |
| 2356 | in the patch (musehub#117 DOM_12/DOM_13 — install/uninstall bookkeeping |
| 2357 | is tracked per user). |
| 2358 | |
| 2359 | Called by ``PATCH /api/repos/{repo_id}/settings``. |
| 2360 | """ |
| 2361 | row = await session.get(MusehubRepo, repo_id) |
| 2362 | if row is None: |
| 2363 | return None |
| 2364 | |
| 2365 | # ── Dedicated column fields ────────────────────────────────────────────── |
| 2366 | if patch.name is not None: |
| 2367 | row.name = patch.name |
| 2368 | if patch.description is not None: |
| 2369 | row.description = patch.description |
| 2370 | if patch.visibility is not None: |
| 2371 | row.visibility = patch.visibility |
| 2372 | if patch.topics is not None: |
| 2373 | row.tags = patch.topics |
| 2374 | if patch.domain_id is not None: |
| 2375 | row.domain_id = patch.domain_id |
| 2376 | |
| 2377 | # ── Marketplace domain link (musehub#117 Phase 3) ──────────────────────── |
| 2378 | if patch.marketplace_domain_id is not None: |
| 2379 | from musehub.services import musehub_domains as _musehub_domains |
| 2380 | |
| 2381 | previous_domain_id = row.marketplace_domain_id |
| 2382 | new_domain_id = patch.marketplace_domain_id or None # "" clears the link |
| 2383 | |
| 2384 | if new_domain_id is not None: |
| 2385 | target = await _musehub_domains.get_domain_by_id(session, new_domain_id) |
| 2386 | if target is None: |
| 2387 | raise ValueError("marketplace_domain_not_found") |
| 2388 | |
| 2389 | if new_domain_id != previous_domain_id: |
| 2390 | row.marketplace_domain_id = new_domain_id |
| 2391 | if caller_user_id is not None: |
| 2392 | if previous_domain_id is not None: |
| 2393 | await _musehub_domains.record_domain_uninstall( |
| 2394 | session, caller_user_id, previous_domain_id |
| 2395 | ) |
| 2396 | if new_domain_id is not None: |
| 2397 | await _musehub_domains.record_domain_install( |
| 2398 | session, caller_user_id, new_domain_id |
| 2399 | ) |
| 2400 | |
| 2401 | # ── Feature-flag JSON blob ─────────────────────────────────────────────── |
| 2402 | current_flags = _merge_settings(row.settings) |
| 2403 | |
| 2404 | flag_updates: JSONObject = {} |
| 2405 | if patch.default_branch is not None: |
| 2406 | flag_updates["default_branch"] = patch.default_branch |
| 2407 | if patch.has_issues is not None: |
| 2408 | flag_updates["has_issues"] = patch.has_issues |
| 2409 | if patch.has_projects is not None: |
| 2410 | flag_updates["has_projects"] = patch.has_projects |
| 2411 | if patch.has_wiki is not None: |
| 2412 | flag_updates["has_wiki"] = patch.has_wiki |
| 2413 | if patch.license is not None: |
| 2414 | flag_updates["license"] = patch.license |
| 2415 | if patch.homepage_url is not None: |
| 2416 | flag_updates["homepage_url"] = patch.homepage_url |
| 2417 | if patch.allow_merge_commit is not None: |
| 2418 | flag_updates["allow_merge_commit"] = patch.allow_merge_commit |
| 2419 | if patch.allow_squash_merge is not None: |
| 2420 | flag_updates["allow_squash_merge"] = patch.allow_squash_merge |
| 2421 | if patch.allow_rebase_merge is not None: |
| 2422 | flag_updates["allow_rebase_merge"] = patch.allow_rebase_merge |
| 2423 | if patch.delete_branch_on_merge is not None: |
| 2424 | flag_updates["delete_branch_on_merge"] = patch.delete_branch_on_merge |
| 2425 | |
| 2426 | if flag_updates: |
| 2427 | current_flags.update(flag_updates) |
| 2428 | row.settings = current_flags |
| 2429 | |
| 2430 | logger.info("✅ Updated settings for repo %s", repo_id) |
| 2431 | return await get_repo_settings(session, repo_id) |
File History
2 commits
sha256:f3995ec2c05c9c34b0e4d6e96349a811d0117a1c51d78096d757998ccb3c0520
fix: blobs only in S3/mpack — remove commit/snapshot indivi…
Sonnet 4.6
patch
45 days ago
sha256:e597c0b97ade9c3c52ac4735ceb437ee69d1b6f0db61b8d7caa6467c5866566d
feat(phase2): write commit objects to S3 at all 5 write sit…
Sonnet 4.6
patch
48 days ago