129 lines
6.3 KiB
Markdown
129 lines
6.3 KiB
Markdown
# Development
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How to run Siftlode locally and pass the gate. Conventions for the backend code itself live in
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[`backend/app/README.md`](../backend/app/README.md).
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## Node
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One major, everywhere. `.nvmrc` pins it; the `Dockerfile`'s frontend build stage,
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`frontend/package.json`'s `engines` and `@types/node` must all match it — and so must the machine you
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run the gate on. `frontend/src/lib/nodeEngine.contract.test.ts` fails the gate the moment any of them
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drift apart, including when yours is the odd one out. `nvm use` in the repo root picks it up.
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This is a contract, not a preference: tsc and vitest read the engine's own `Intl` and web APIs, and
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those change between majors — the same currency format renders `$160M` on one and `$160.0M` on the
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next. A gate that is green on a major you do not ship is green about nothing.
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## Run it locally
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The whole stack (Postgres + API + worker) comes up from the base compose file plus the localdev override:
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```bash
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docker compose -f docker-compose.yml -f docker-compose.localdev.yml up --build
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```
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Browse at **http://localhost:8080** (Google login works — the OAuth redirect is
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`http://localhost:8080/auth/callback`). The API runs `alembic upgrade head` on startup, so the schema
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is always current.
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For a fast frontend edit loop, run the Vite dev server with HMR against that API:
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```bash
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cd frontend && npm install && npm run dev # http://localhost:5173, proxying the API on :8080
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```
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The dev server also serves the **design lab** at `http://localhost:5173/design-lab`: the open design
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decisions and the chosen patterns, rendered with the app's real CSS. It never reaches a production build
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(see [`DESIGN.md`](DESIGN.md)).
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## The gate
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A change is done when this is green, from the repo root:
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```bash
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bash scripts/check.sh # every lane
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bash scripts/check.sh lint # the static lanes only (no tests, build or audits) — the quick loop
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bash scripts/check.sh --brief # either mode: one line per lane, output only for a red one
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bash scripts/check.sh --list # the lane names, one per line (runs nothing)
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bash scripts/check.sh --only "vitest" # one lane, by its exact name — never "the gate"
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```
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It runs every lane even after one fails and names each red one at the end.
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The codebase's health numbers — size, complexity, test ratio, gate weight, comment noise — come from
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`python scripts/audit_metrics.py` (seconds; it reports, it never fails). `--speed` adds the speed
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baseline (`frontend/e2e/speed.measure.ts`: the feed's first card and a shared `/watch` link's
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time-to-play against the :8080 stack, with `E2E_PASSWORD` set). An epic that changes structure
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compares its before and after. What it runs, and why
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each lane runs where it does, is in the script's comments; `frontend/src/lib/gates.contract.test.ts`
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holds its lines, so a lane dropped or narrowed there fails a test. What each gate deliberately does
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NOT check — and why — is the [gate register](gates.md). There is no CI: the gate runs here, and a
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release runs it (plus e2e and the CVE scan) before anything is merged.
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The lanes, for running one by hand:
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**Backend**
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```bash
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# lint + format check (ruff is pinned in backend/requirements-dev.txt)
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python -m ruff check --config backend/ruff.toml backend scripts
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python -m ruff format --check --config backend/ruff.toml backend scripts
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# type check — in the test image (requirements.lock does not install on Windows); new errors only,
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# the pre-existing ones are in backend/.basedpyright/baseline.json
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docker compose -f backend/docker-compose.test.yml run --rm --no-deps --build test \
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python -m basedpyright --project pyrightconfig.json
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# tests — pure-logic + the DB-backed integration lane, against an ephemeral Postgres. The backend
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# tree is bind-mounted, so it always tests your working files.
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docker compose -f backend/docker-compose.test.yml up --build --abort-on-container-exit --exit-code-from test
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docker compose -f backend/docker-compose.test.yml down -v
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# the lock against the advisory databases, at any severity
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docker compose -f backend/docker-compose.test.yml run --rm --no-deps test \
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pip-audit -r requirements.lock --no-deps --disable-pip
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```
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**Shell scripts**
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```bash
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# every tracked *.sh at shellcheck's default bar (info included); the version is pinned in scripts/check.sh
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git ls-files -z -- '*.sh' | xargs -0 shellcheck
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```
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A missing database or ffmpeg is a hard error, not a skip — so the gate can't print green while the
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DB-backed tests were quietly not run (`SIFTLODE_TEST_REQUIRE_DB=0` is the explicit "pure-logic only"
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run for a machine without Postgres). Tests that need a database take the `db` fixture
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(`backend/tests/conftest.py`); the rest are pure-logic and run without one.
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**Frontend** (from `frontend/`)
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```bash
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node ../scripts/check-node-modules.mjs # node_modules == package-lock.json (else: npm ci)
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npm run typecheck # tsc x3 (app / node / e2e)
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npm run lint # eslint (typed rules included; warnings fail)
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npm run format:check # prettier
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npm run knip # unused files/exports/deps
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npm run test # vitest (incl. the compiler and gate-register contracts)
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npx vite build # the production bundle (devOnlyGuard fails it on dev-only code)
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npm audit --omit=dev --audit-level=high # what ships to the browser, at high or above
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```
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Coverage is on demand, never enforced and not in the gate (E35): `npm run test -- --coverage` in
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`frontend/`, and for the backend
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`docker compose -f backend/docker-compose.test.yml run --rm test python -m pytest --cov=app` (then
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`… down -v`).
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The DB lane runs on every core (`pytest -n auto`, pytest-xdist): `tests/db_per_worker.py` gives each worker its own
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database (`siftlode_test_gw<N>`, created and migrated on first use), so the same tests run side by side. A serial
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run (no `-n`) still works and uses `siftlode_test` itself.
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The Playwright suite (`npm run e2e`) runs against the `:8080` stack built from your tree; the release
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requires it. Before an image is pushed, it is scanned with Trivy (HIGH/CRITICAL with a fix fails;
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exceptions in `.trivyignore.yaml`, each with a reason and an expiry).
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## Branching
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Trunk-based: branch off `main`, keep the branch gate-green, and land the whole change back to `main`
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in one reviewed step. Migrations are Alembic revisions under `backend/alembic/versions`; the API
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applies them on startup, and the DB-lane rebuilds the schema via `alembic upgrade head`, so a broken
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migration chain fails the tests.
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