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a8b73fd754
- Rename packages/opencode → packages/tfcode (directory only) - Rename bin/opencode → bin/tfcode (CLI binary) - Rename .opencode → .tfcode (config directory) - Update package.json name and bin field - Update config directory path references (.tfcode) - Keep internal code references as 'opencode' for easy upstream sync - Keep @opencode-ai/* workspace package names This minimal branding approach allows clean merges from upstream opencode repository while providing tfcode branding for users.
64 lines
3.2 KiB
Markdown
64 lines
3.2 KiB
Markdown
# opencode database guide
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## Database
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- **Schema**: Drizzle schema lives in `src/**/*.sql.ts`.
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- **Naming**: tables and columns use snake*case; join columns are `<entity>_id`; indexes are `<table>*<column>\_idx`.
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- **Migrations**: generated by Drizzle Kit using `drizzle.config.ts` (schema: `./src/**/*.sql.ts`, output: `./migration`).
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- **Command**: `bun run db generate --name <slug>`.
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- **Output**: creates `migration/<timestamp>_<slug>/migration.sql` and `snapshot.json`.
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- **Tests**: migration tests should read the per-folder layout (no `_journal.json`).
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# opencode Effect rules
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Use these rules when writing or migrating Effect code.
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See `specs/effect-migration.md` for the compact pattern reference and examples.
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## Core
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- Use `Effect.gen(function* () { ... })` for composition.
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- Use `Effect.fn("Domain.method")` for named/traced effects and `Effect.fnUntraced` for internal helpers.
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- `Effect.fn` / `Effect.fnUntraced` accept pipeable operators as extra arguments, so avoid unnecessary outer `.pipe()` wrappers.
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- Use `Effect.callback` for callback-based APIs.
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- Prefer `DateTime.nowAsDate` over `new Date(yield* Clock.currentTimeMillis)` when you need a `Date`.
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## Schemas and errors
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- Use `Schema.Class` for multi-field data.
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- Use branded schemas (`Schema.brand`) for single-value types.
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- Use `Schema.TaggedErrorClass` for typed errors.
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- Use `Schema.Defect` instead of `unknown` for defect-like causes.
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- In `Effect.gen` / `Effect.fn`, prefer `yield* new MyError(...)` over `yield* Effect.fail(new MyError(...))` for direct early-failure branches.
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## Runtime vs Instances
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- Use the shared runtime for process-wide services with one lifecycle for the whole app.
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- Use `src/effect/instances.ts` for per-directory or per-project services that need `InstanceContext`, per-instance state, or per-instance cleanup.
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- If two open directories should not share one copy of the service, it belongs in `Instances`.
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- Instance-scoped services should read context from `InstanceContext`, not `Instance.*` globals.
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## Preferred Effect services
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- In effectified services, prefer yielding existing Effect services over dropping down to ad hoc platform APIs.
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- Prefer `FileSystem.FileSystem` instead of raw `fs/promises` for effectful file I/O.
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- Prefer `ChildProcessSpawner.ChildProcessSpawner` with `ChildProcess.make(...)` instead of custom process wrappers.
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- Prefer `HttpClient.HttpClient` instead of raw `fetch`.
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- Prefer `Path.Path`, `Config`, `Clock`, and `DateTime` when those concerns are already inside Effect code.
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- For background loops or scheduled tasks, use `Effect.repeat` or `Effect.schedule` with `Effect.forkScoped` in the layer definition.
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## Instance.bind — ALS for native callbacks
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`Instance.bind(fn)` captures the current Instance AsyncLocalStorage context and restores it synchronously when called.
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Use it for native addon callbacks (`@parcel/watcher`, `node-pty`, native `fs.watch`, etc.) that need to call `Bus.publish`, `Instance.state()`, or anything that reads `Instance.directory`.
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You do not need it for `setTimeout`, `Promise.then`, `EventEmitter.on`, or Effect fibers.
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```typescript
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const cb = Instance.bind((err, evts) => {
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Bus.publish(MyEvent, { ... })
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})
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nativeAddon.subscribe(dir, cb)
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```
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