feat: workspace backend foundation (PR-1)

- Add workspaces table migration (2026_06_01_add_workspaces)
- Create Workspace model with repo_id, user_id, branch, path, status
- Add workspace_id nullable FK to ToolInstance
- Create GitService for clone/fetch/pull/branch_exists_remotely
- Create WorkspaceManager for create/delete/sync lifecycle
- Create workspace CRUD API with 409 handling for duplicates and instances
- Wire workspace routes into FastAPI app
- 17 tests passing (8 unit + 9 integration), 1 skipped

Quality gates: ruff clean
This commit is contained in:
2026-05-31 23:02:45 +02:00
parent d2b6bba15c
commit d567225bf7
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"""Workspace CRUD API endpoints."""
import logging
import uuid
from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy import func, select
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.orm import selectinload
from src.auth.dependencies import get_current_user_id, get_db_session
from src.models.git_repository import GitRepository
from src.models.tool_instance import ToolInstance
from src.models.workspace import Workspace
from src.services.workspace_manager import WorkspaceHasInstancesError, WorkspaceManager
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/projects/{project_id}/repositories/{repo_id}/workspaces")
@router.get("/")
async def list_workspaces(
project_id: uuid.UUID,
repo_id: uuid.UUID,
user_id: uuid.UUID = Depends(get_current_user_id),
session: AsyncSession = Depends(get_db_session),
) -> list[dict]:
"""List workspaces for a repository, with instance counts."""
# Verify repo belongs to project and user
repo = await _get_repo(session, repo_id, project_id, user_id)
# Build subquery for instance counts
instance_count = (
select(func.count(ToolInstance.id))
.where(ToolInstance.workspace_id == Workspace.id)
.correlate(Workspace)
.scalar_subquery()
)
result = await session.execute(
select(
Workspace,
instance_count.label("instance_count"),
)
.where(Workspace.repo_id == repo_id)
.order_by(Workspace.created_at.desc())
)
rows = result.all()
return [
{
"id": str(ws.id),
"name": ws.name,
"repo_id": str(ws.repo_id),
"repo_name": repo.name,
"project_name": repo.project.name if repo.project else "",
"user_id": str(ws.user_id),
"branch": ws.branch,
"path": ws.path,
"status": ws.status,
"last_sync_at": ws.last_sync_at.isoformat() if ws.last_sync_at else None,
"created_at": ws.created_at.isoformat() if ws.created_at else None,
"updated_at": ws.updated_at.isoformat() if ws.updated_at else None,
"instance_count": count or 0,
}
for ws, count in rows
]
@router.post("/")
async def create_workspace(
project_id: uuid.UUID,
repo_id: uuid.UUID,
data: dict,
user_id: uuid.UUID = Depends(get_current_user_id),
session: AsyncSession = Depends(get_db_session),
) -> dict:
"""Create a new workspace by cloning a repository branch."""
repo = await _get_repo(session, repo_id, project_id, user_id)
name = data.get("name", "").strip()
branch = data.get("branch", "main").strip()
if not name:
raise HTTPException(status_code=400, detail="Workspace name is required")
if not branch:
raise HTTPException(status_code=400, detail="Branch is required")
manager = WorkspaceManager()
try:
workspace = await manager.create(repo, user_id, name, branch)
session.add(workspace)
await session.commit()
except Exception as exc:
await session.rollback()
logger.error("Failed to create workspace: %s", exc)
raise HTTPException(
status_code=409,
detail="Workspace name already exists for this repository",
) from exc
await session.refresh(workspace)
return {
"id": str(workspace.id),
"name": workspace.name,
"repo_id": str(workspace.repo_id),
"branch": workspace.branch,
"path": workspace.path,
"status": workspace.status,
"created_at": workspace.created_at.isoformat() if workspace.created_at else None,
}
@router.get("/{workspace_id}")
async def get_workspace_detail(
project_id: uuid.UUID,
repo_id: uuid.UUID,
workspace_id: uuid.UUID,
user_id: uuid.UUID = Depends(get_current_user_id),
session: AsyncSession = Depends(get_db_session),
) -> dict:
"""Get workspace details."""
repo = await _get_repo(session, repo_id, project_id, user_id)
workspace = await _get_workspace(session, workspace_id, repo_id)
# Count instances
result = await session.execute(
select(func.count(ToolInstance.id)).where(
ToolInstance.workspace_id == workspace_id
)
)
instance_count = result.scalar() or 0
return {
"id": str(workspace.id),
"name": workspace.name,
"repo_id": str(workspace.repo_id),
"repo_name": repo.name,
"user_id": str(workspace.user_id),
"branch": workspace.branch,
"path": workspace.path,
"status": workspace.status,
"last_sync_at": workspace.last_sync_at.isoformat()
if workspace.last_sync_at
else None,
"created_at": workspace.created_at.isoformat()
if workspace.created_at
else None,
"updated_at": workspace.updated_at.isoformat()
if workspace.updated_at
else None,
"instance_count": instance_count,
}
@router.patch("/{workspace_id}")
async def update_workspace(
project_id: uuid.UUID,
repo_id: uuid.UUID,
workspace_id: uuid.UUID,
data: dict,
user_id: uuid.UUID = Depends(get_current_user_id),
session: AsyncSession = Depends(get_db_session),
) -> dict:
"""Update workspace name or branch."""
await _get_repo(session, repo_id, project_id, user_id)
workspace = await _get_workspace(session, workspace_id, repo_id)
new_name = data.get("name", "").strip()
new_branch = data.get("branch", "").strip()
if new_name:
workspace.name = new_name
if new_branch:
workspace.branch = new_branch
try:
await session.commit()
except Exception as exc:
await session.rollback()
logger.error("Failed to update workspace: %s", exc)
raise HTTPException(
status_code=409,
detail="Workspace name already exists for this repository",
) from exc
return {
"id": str(workspace.id),
"name": workspace.name,
"branch": workspace.branch,
"status": workspace.status,
}
@router.delete("/{workspace_id}")
async def delete_workspace(
project_id: uuid.UUID,
repo_id: uuid.UUID,
workspace_id: uuid.UUID,
force: bool = Query(False),
user_id: uuid.UUID = Depends(get_current_user_id),
session: AsyncSession = Depends(get_db_session),
) -> dict:
"""Delete a workspace. Returns 409 if instances exist and force=False."""
await _get_repo(session, repo_id, project_id, user_id)
workspace = await _get_workspace(session, workspace_id, repo_id)
manager = WorkspaceManager()
try:
await manager.delete(workspace, force=force, session=session)
await session.commit()
except WorkspaceHasInstancesError as exc:
await session.rollback()
raise HTTPException(
status_code=409,
detail={
"message": "Workspace has running tool instances",
"instances": [
{"id": str(i.id), "name": i.name} for i in exc.instances
],
},
) from exc
except Exception as exc:
await session.rollback()
logger.error("Failed to delete workspace: %s", exc)
raise HTTPException(
status_code=500, detail="Failed to delete workspace"
) from exc
return {"status": "deleted"}
@router.post("/{workspace_id}/sync")
async def sync_workspace(
project_id: uuid.UUID,
repo_id: uuid.UUID,
workspace_id: uuid.UUID,
user_id: uuid.UUID = Depends(get_current_user_id),
session: AsyncSession = Depends(get_db_session),
) -> dict:
"""Sync workspace with remote. Returns 409 if branch was deleted."""
await _get_repo(session, repo_id, project_id, user_id)
workspace = await _get_workspace(session, workspace_id, repo_id)
manager = WorkspaceManager()
result = await manager.sync(workspace)
if result.branch_deleted:
raise HTTPException(
status_code=409,
detail={
"message": f"Branch '{workspace.branch}' was deleted from remote",
"branch_deleted": True,
},
)
await session.commit()
return {
"branch_deleted": False,
"pulled": True,
"last_sync_at": workspace.last_sync_at.isoformat()
if workspace.last_sync_at
else None,
}
async def _get_repo(
session: AsyncSession,
repo_id: uuid.UUID,
project_id: uuid.UUID,
user_id: uuid.UUID,
) -> GitRepository:
"""Fetch and validate repository access."""
result = await session.execute(
select(GitRepository)
.where(
GitRepository.id == repo_id,
GitRepository.project_id == project_id,
)
.options(selectinload(GitRepository.project))
)
repo = result.scalar_one_or_none()
if not repo:
raise HTTPException(status_code=404, detail="Repository not found")
return repo
async def _get_workspace(
session: AsyncSession,
workspace_id: uuid.UUID,
repo_id: uuid.UUID,
) -> Workspace:
"""Fetch and validate workspace."""
result = await session.execute(
select(Workspace).where(
Workspace.id == workspace_id,
Workspace.repo_id == repo_id,
)
)
workspace = result.scalar_one_or_none()
if not workspace:
raise HTTPException(status_code=404, detail="Workspace not found")
return workspace