Files
brain-of-reese/app/api/git_sources.py
T

133 lines
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Python

"""Admin-managed git sources API (phase 35, task 02).
Admin-only CRUD under ``/api/git-sources`` (phase 16 pattern, A10
extended — the public API surface stays stateless and the signed cookie
remains the only session state, same as ``/api/steering`` and
``/api/sync``): the ``git_sources`` table holds the repo URLs the Sync
button (phase 32) and ``import_docs`` (phase 28) clone/pull. DB rows win
over ``BOR_GIT_SOURCES``, which is a fallback while the table is empty
(the phase's locked decision — ``from_env`` tells the UI which list it is
looking at, so the page can show the env note only while the fallback is
active).
Routes: ``GET`` (DB rows oldest-first, or the env list with
``from_env: true`` while the table is empty), ``POST`` (201, validated
create), ``DELETE /{source_id}`` (204). The whole router sits behind
:func:`app.core.auth.require_admin` — anonymous callers get 403 on every
route.
No credential-echo path: URLs may embed ``user:pass@`` (phase 32's
masking discipline), so the 409/422 details are fixed generic strings
that never repeat the submitted URL.
Scope boundary (phase locked decisions): adding or removing a repo does
NOT clone, import, or prune anything — the existing Sync button performs
that (a removal prunes on the next sync, ``prune=True``).
"""
from __future__ import annotations
import re
import uuid
from fastapi import APIRouter, Depends, HTTPException, Response
from sqlalchemy import select
from sqlalchemy.exc import IntegrityError
from sqlalchemy.orm import Session
from app.config import get_settings
from app.core.auth import require_admin
from app.db import get_db
from app.models import GitSource
from app.schemas import GitSourceIn, GitSourceList, GitSourceOut
router = APIRouter(
prefix="/git-sources",
tags=["git-sources"],
dependencies=[Depends(require_admin)], # phase 16 pattern: admin-only surface
)
#: Accepted git URL shapes — the trimmed URL must *start* with one of them.
#: Covers the phase-28 real URLs (HTTPS + ``git@`` SSH); scp-style
#: ``host:repo`` is deliberately rejected (422). ASSUMPTION (task 02): the
#: accepted shapes are exactly these four prefixes.
URL_RE = re.compile(r"^(https?://|ssh://|git@)")
@router.get("", response_model=GitSourceList)
def list_git_sources(
db: Session = Depends(get_db), # noqa: B008
) -> GitSourceList:
"""The effective git source list.
DB rows ordered by ``(added_at, id)`` (oldest first, id tie-break for
same-timestamp inserts) with ``from_env: false``; while the table is
empty, the ``BOR_GIT_SOURCES`` env URLs as rows with null
``id``/``added_at`` and ``from_env: true``.
"""
rows = db.scalars(
select(GitSource).order_by(GitSource.added_at.asc(), GitSource.id.asc())
).all()
if rows:
return GitSourceList(
sources=[GitSourceOut(id=row.id, url=row.url, added_at=row.added_at) for row in rows],
from_env=False,
)
return GitSourceList(
sources=[
GitSourceOut(id=None, url=url, added_at=None)
for url in get_settings().git_source_list
],
from_env=True,
)
@router.post("", response_model=GitSourceOut, status_code=201)
def create_git_source(
payload: GitSourceIn,
db: Session = Depends(get_db), # noqa: B008
) -> GitSourceOut:
"""Store one repo URL (already trimmed by the schema).
422 when the shape is not one of the accepted prefixes (generic
detail — the input is never echoed); 409 when the trimmed URL is
already stored (same; the unique index is the backstop against a
concurrent insert the pre-check missed); 201 + the created row
otherwise.
"""
url = payload.url
if not URL_RE.match(url):
raise HTTPException(
status_code=422, detail="not a valid git URL (expected https://, ssh:// or git@…)"
)
if db.scalar(select(GitSource).where(GitSource.url == url)) is not None:
raise HTTPException(status_code=409, detail="a git source with this URL already exists")
row = GitSource(url=url)
db.add(row)
try:
db.commit()
except IntegrityError:
db.rollback()
raise HTTPException(
status_code=409, detail="a git source with this URL already exists"
) from None
db.refresh(row)
return GitSourceOut(id=row.id, url=row.url, added_at=row.added_at)
@router.delete("/{source_id}", status_code=204)
def delete_git_source(
source_id: uuid.UUID,
db: Session = Depends(get_db), # noqa: B008
) -> Response:
"""Remove a stored row; 404 when the id is unknown.
Removing does not touch the clones or the index — the next Sync
(``prune=True``) prunes the dropped repo (phase scope boundary).
"""
row = db.get(GitSource, source_id)
if row is None:
raise HTTPException(status_code=404, detail="git source not found")
db.delete(row)
db.commit()
return Response(status_code=204)