imbytecat
19e60d358f
- 顶层新增 bin.ts 作为编译入口，citty 懒加载 src/cli/ 下子命令 - src/cli/serve.ts 通过 _serve-nitro.mjs 桥接启动 Nitro（规避 .output/server/index.mjs 顶层 serve(...) 的副作用导入） - src/cli/migrate.ts 显式跑 drizzle migrate；env / drizzle 都在 run() 里 await import，避免 citty --help 遍历 subCommands 时触发 env 校验 - compile.ts 入口切到 bin.ts；移除 src/server/plugins/migrate.ts 与 vite.config.ts 中的启动时自动迁移 - compose.yaml 新增一次性 migrate 服务，app depends_on service_completed_successfully，保证迁移先行再起服 - tsconfig 排除 .output / out；AGENTS.md 补充 CLI 与部署规约
155 lines
12 KiB
Markdown
155 lines
12 KiB
Markdown
# AGENTS.md
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Compact, repo-specific notes for AI agents. Generic language/framework knowledge is omitted — only things that will bite you if you don't know.
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## Stack & runtime
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- **Bun-only** (`mise.toml` pins `bun = 1.3.13`). Never invoke `npm`/`npx`/`node`/`yarn`/`pnpm`. Use `bun run <script>` (bare `bun <script>` can collide with Bun built-in subcommands).
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- TanStack Start (React 19 SSR, file-routed) + Vite 8 + Nitro (nightly, preset `bun`). Vite dev port is **strict 3000**.
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- PostgreSQL + **Drizzle ORM `0.45.2` (0.x, NOT 1.0 beta)** — see "Drizzle" section, this matters a lot.
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- ORPC (contract-first), TanStack Query v5, Tailwind v4.
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## Scripts
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```bash
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bun run dev # bunx --bun vite dev (localhost:3000)
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bun run build # bunx --bun vite build → .output/
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bun run compile # bun compile.ts → out/server-<target> (standalone CLI binary)
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bun run cli <cmd> # bun bin.ts <cmd> — run a CLI subcommand in source (dev)
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bun run typecheck # tsc --noEmit
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bun run fix # biome check --write (lint + format + organize imports)
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bun run db:push # dev only — push schema to DB, no migration file
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bun run db:generate # produce SQL migration files in ./drizzle
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bun run db:migrate # apply migrations via drizzle-kit (local convenience)
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bun run db:studio # Drizzle Studio
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```
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Cross-compile targets live under `compile:{linux,darwin,windows}[:arch]`. `compile.ts` accepts `--target bun-<os>-<arch>`; default derives from host.
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Before committing: `bun run fix && bun run typecheck`. No CI, no pre-commit hooks, no lint-staged — so these are on you.
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## Drizzle (v0.x — critical)
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**Why it matters:** the project was on 1.0 beta and was rolled back. Online docs default to 1.0 beta APIs that do NOT exist here. If typecheck complains, you are probably importing a 1.0 beta API.
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- Driver: `drizzle-orm/postgres-js`. Do NOT use `drizzle-orm/bun-sql`.
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- `drizzle()` is called with `{ connection, schema }` where `schema = import * as schema from '@/server/db/schema'`. There is **no `relations.ts`** and **no `defineRelations`** in 0.x.
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- Zod generators live in the separate `drizzle-zod` package (`^0.8.3`). Import from `drizzle-zod`, **not** `drizzle-orm/zod` (that subpath only exists in 1.0 beta).
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- Relational queries use **RQB v1 callback syntax**:
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```ts
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db.query.todoTable.findMany({
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orderBy: (t, { desc }) => desc(t.createdAt),
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})
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```
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Do NOT use the v2 object form (`orderBy: { createdAt: 'desc' }`, `where: { id }`) — it won't type-check.
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- To add relations later: declare per-table with `relations()` from `drizzle-orm` and export them from the same file as the table; they get picked up automatically because `index.ts` does `drizzle({ schema })` via `import *`.
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- Every table must spread `...generatedFields` from `src/server/db/fields.ts` (gives `id` UUIDv7 with `$defaultFn` fallback, `createdAt`, `updatedAt` with `$onUpdateFn`). There's also a `generatedFieldKeys` helper to feed `createInsertSchema(...).omit(...)`.
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- `drizzle.config.ts` runs outside Vite — `@/*` path aliases do NOT resolve there. It currently does `import { env } from './src/env'` (relative). Preserve that.
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- The `./drizzle/` migrations directory is gitignored-by-absence right now (no migrations yet). Migrations are applied via the CLI (`./server migrate`, see "CLI & single-binary deploy" below), NOT at server startup. Dev uses `db:push`. Don't mix `push` and `migrate` on the same DB.
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## CLI & single-binary deploy
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`bun run compile` produces a single executable that dispatches subcommands via [citty](https://github.com/unjs/citty). Entry is `bin.ts` at repo root, subcommands live in `src/cli/`.
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```
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./server [serve] # default — start the HTTP server
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./server migrate # apply migrations from ./drizzle
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./server --help
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```
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**Nitro side-effect pitfall (important).** Under the `bun` preset, `.output/server/index.mjs` has a top-level `serve(...)` call — merely importing it starts the HTTP server. `bin.ts` therefore must not eager-import any subcommand module, and `src/cli/serve.ts` reaches `.output/server/index.mjs` through the `src/cli/_serve-nitro.mjs` bridge (with `_serve-nitro.d.mts` for types, since `.output/` doesn't exist at typecheck time). Citty's `subCommands: { x: () => import('...') }` lazy-loader is what keeps `--help` and `migrate` from booting the server.
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**Citty eager-loads subcommand modules for `--help`** to read each subcommand's `meta`. So every `src/cli/*.ts` module body must be side-effect-free: do NOT static-import `@/env`, `@/server/db/*`, or anything that reads env at module-load time. Use `await import('@/env')` inside `run()`. Otherwise `./server --help` (or any subcommand's help) will fail with env validation errors before printing.
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Add a subcommand: drop a file in `src/cli/` that default-exports `defineCommand({...})`, then register it in `bin.ts`'s `subCommands` with a `() => import(...)` thunk. Keep top-level imports limited to `citty` + Node built-ins; pull env / db / etc. via `await import(...)` inside `run()`.
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**Deploy flow is always migrate-then-serve.** The compiled binary bundles neither the `./drizzle/` SQL files nor the app schema migrations at runtime — they're read from disk next to the binary. Dockerfile copies `drizzle/` alongside `./server`, and `compose.yaml` models this with a one-shot `migrate` service that `app` `depends_on: service_completed_successfully`. On k8s, run `./server migrate` as an initContainer or a Helm `pre-upgrade` Job; run `./server` (= `./server serve`) as the main container.
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## ORPC
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Contract → Router → Handler → Client, all type-safe from a single contract.
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- `os` is built in `src/server/api/server.ts` via `implement(contract).$context<BaseContext>()`. **Always import `os` from `@/server/api/server`**, never from `@orpc/server` directly. `ORPCError`, `onError`, `ValidationError` come from `@orpc/server`.
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- Contracts (`src/server/api/contracts/*.contract.ts`) generate Zod from Drizzle tables via `drizzle-zod`:
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```ts
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const insertSchema = createInsertSchema(todoTable).omit(generatedFieldKeys)
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```
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Barrel-aggregated in `contracts/index.ts` as `export const contract = { todo }`.
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- Routers chain the `db` middleware (`src/server/api/middlewares/db.middleware.ts`, injects the `getDB()` singleton into context). Barrel in `routers/index.ts` builds `os.router({ todo })`.
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- **Interceptors are attached at the handler level, not in `server.ts` and not on `os`.** Both `src/routes/api/rpc.$.ts` (`RPCHandler`) and `src/routes/api/$.ts` (`OpenAPIHandler`) register `[onError(logError)]` (server) and `[onError(handleValidationError)]` (client). The validation interceptor rewrites `BAD_REQUEST + ValidationError` into `INPUT_VALIDATION_FAILED` (422) and output validation errors into `OUTPUT_VALIDATION_FAILED`.
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- OpenAPI/Scalar: docs at `/api/docs`, spec at `/api/spec.json` (handler prefix `/api`, plugin paths `/docs` and `/spec.json`).
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- **SSR isomorphism** (`src/client/orpc.ts`): `createIsomorphicFn().server(createRouterClient(...)).client(new RPCLink(...))`. Server branch reads `getRequestHeaders()` for context; client branch POSTs to `${origin}/api/rpc`.
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- **Global mutation invalidation** uses `experimental_defaults` in `createTanstackQueryUtils(...)` — currently invalidates `orpc.todo.list.key()` on every `todo.{create,update,remove}` success. Add new features here rather than in each mutation site.
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- SSR prefetch in route loaders: `await context.queryClient.ensureQueryData(orpc.todo.list.queryOptions())`. Components use `useSuspenseQuery(orpc.feature.list.queryOptions())`.
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## Code style (Biome)
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- 2-space, LF, single quotes, **semicolons as-needed** (omitted unless required), 120-col, arrow parens always, `useArrowFunction: "error"` — so React components must be `const Foo = () => {...}` not `function Foo() {}`. Also `noReactPropAssignments: "error"`.
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- Imports are auto-organized into two groups (external, then `@/*`), each alphabetical, with `import type` interleaved (NOT a separate group). `bun run fix` handles this; don't hand-sort.
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- Files: utils `kebab-case.ts`, components `PascalCase.tsx`.
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- `routeTree.gen.ts` is generated — ignored by Biome, never edit.
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## TypeScript
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Strict mode, plus `noUncheckedIndexedAccess`, `verbatimModuleSyntax`, `erasableSyntaxOnly`, `noImplicitOverride`. No `as any` / `@ts-ignore` / `@ts-expect-error`.
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Path alias: `@/* → src/*`. For files outside `src/` use `@/../<file>` (example in the codebase: `src/routes/api/$.ts` imports `name, version` from `@/../package.json`).
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## Env
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`src/env.ts` via `@t3-oss/env-core`. Server: `DATABASE_URL` (required, `z.url()`). Client needs `VITE_` prefix (`VITE_APP_TITLE` optional). Never commit `.env`.
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## Docker / deploy
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- Multi-stage: `oven/bun:1.3.13` builds and runs `bun compile.ts`, then `gcr.io/distroless/cc-debian13:nonroot` runs the single `./server` binary. The `cc` (glibc) distroless variant is required because Bun's compiled binary links glibc.
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- `drizzle/` folder is copied into the runtime image so `./server migrate` can find migrations at runtime.
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- `compose.yaml`: one-shot `migrate` service runs `./server migrate` with `restart: "no"`, then `app` starts (`depends_on: migrate: service_completed_successfully`). `DATABASE_URL=postgres://postgres:postgres@db:5432/postgres` for both.
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- Distroless has no shell, so any init-then-serve pattern must use exec-form `command: [...]`, not `sh -c`.
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## Layout (non-obvious parts only)
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```
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src/
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├── client/orpc.ts # isomorphic ORPC client + experimental_defaults invalidation
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├── cli/ # CLI subcommands (loaded lazily by bin.ts via citty)
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│ ├── serve.ts # `./server serve` — imports the Nitro bridge on demand
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│ ├── migrate.ts # `./server migrate` — drizzle migrate against ./drizzle
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│ ├── _serve-nitro.mjs # bridge: `import('../../.output/server/index.mjs')`
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│ └── _serve-nitro.d.mts # types for the bridge (build output has no .d.ts)
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├── routes/api/
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│ ├── $.ts # OpenAPI + Scalar; interceptors registered here
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│ └── rpc.$.ts # RPC; interceptors registered here
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├── server/
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│ ├── api/
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│ │ ├── server.ts # the ONLY place to build `os`
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│ │ ├── context.ts # BaseContext / DBContext types
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│ │ ├── interceptors.ts # logError, handleValidationError
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│ │ ├── contracts/ # Zod schemas from Drizzle tables (barrel: contract)
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│ │ ├── routers/ # os.* handlers (barrel: router)
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│ │ └── middlewares/ # db middleware injects getDB() singleton
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│ ├── db/
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│ │ ├── index.ts # createDB({ connection, schema }) + getDB()/closeDB() singleton
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│ │ ├── fields.ts # pk (UUIDv7), createdAt, updatedAt, generatedFields(Keys)
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│ │ └── schema/ # pgTable definitions; also put `relations()` here when adding
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│ └── plugins/
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│ └── shutdown.ts # SIGINT/SIGTERM → closeDB() with 500ms delay
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├── env.ts # t3-oss env validation
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├── router.tsx # QueryClient + setupRouterSsrQueryIntegration
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└── routeTree.gen.ts # auto-generated, do not edit
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bin.ts # citty entry (root) — keep imports minimal (see "CLI" section)
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```
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Nitro plugins are wired in `vite.config.ts` (`nitro({ plugins: [...] })`), not via a Nitro config file.
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## Don'ts (specific, non-obvious)
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- Don't edit `routeTree.gen.ts`.
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- Don't eager-import anything from `.output/` in `bin.ts` or any module it statically imports — it starts the HTTP server as a side effect. Subcommands must be lazy via citty's `() => import(...)` thunks.
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- Don't re-add an auto-migrate Nitro plugin. Migrations are an explicit deploy step via `./server migrate`.
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- Don't import `os` from `@orpc/server` in middleware/routers — always `@/server/api/server`.
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- Don't import from `drizzle-orm/zod` (1.0 beta only). Use `drizzle-zod`.
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- Don't use RQB v2 object syntax, `defineRelations`, or pass `relations` to `drizzle()`. All are 1.0 beta.
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- Don't use `drizzle-orm/bun-sql`.
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- Don't use `@/*` aliases in `drizzle.config.ts`.
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- Don't commit `.env`.
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