Rene Nochebuena
0acf4da97e
Introduces code.nochebuena.dev/einherjar/db-sqlite — the SQLite database starter for the Einherjar framework. Absorbs the sqlite package from micro-lib using the pure-Go modernc.org/sqlite driver (no CGO, cross-compilation compatible). Interfaces (CT-6: one TypeSpec per file): - Executor — ExecContext, QueryContext, QueryRowContext (database/sql types) - Tx — Executor + Commit(), Rollback() — no ctx; honest database/sql contract - Provider — GetExecutor, Begin, Ping, HandleError - Component — lifecycle.Component + observability.Checkable + Provider - UnitOfWork — Do(ctx, fn) Implementation: - New(logger, cfg) Component — pool not created until OnInit - OnInit: sql.Open with DSN (Path + Pragmas); sets MaxOpenConns, MaxIdleConns - OnStart: Ping with 5s timeout; logs "sqlite: connected" - OnStop: db.Close(); logs "sqlite: closing pool" - GetExecutor: returns active Tx from context (ctxTxKey) or *sql.DB; explicit nil return when db uninitialized to avoid typed-nil interface pitfall - Begin: wraps db.BeginTx; wrapped in xerrors on error - HealthCheck: delegates to Ping; Priority LevelDegraded (file DB; absence is non-fatal on a server restart — file always present if configured) - NewUnitOfWork(logger, provider) UnitOfWork — acquires writeMu before Begin to prevent SQLITE_BUSY under concurrent goroutines (SQLite single-writer model) - writeMu: extracted from *sqliteImpl via type assertion in NewUnitOfWork; gracefully skipped when provider is a mock (nil mu) - HandleError: sql.ErrNoRows→ErrNotFound, unique/pk constraint→ErrAlreadyExists, foreign key→ErrInvalidInput, all others→ErrInternal Config (EINHERJAR_SQLITE_* env vars): Path(required), MaxOpenConns(1), MaxIdleConns(1), Pragmas(?_journal=WAL&_timeout=5000&_fk=true) - Component interface embeds observability.Identifiable; identifiable.go implements ModulePath and ModuleVersion via runtime/debug.ReadBuildInfo() — prints in launcher banner
71 lines
2.3 KiB
Markdown
71 lines
2.3 KiB
Markdown
## Summary
|
|
|
|
<!-- One or two sentences: what does this PR do and why? -->
|
|
|
|
---
|
|
|
|
## Type of change
|
|
|
|
- [ ] Bug fix — non-breaking change that resolves an issue
|
|
- [ ] New feature — non-breaking addition of functionality
|
|
- [ ] Breaking change — alters existing behavior or public API
|
|
- [ ] Documentation update
|
|
- [ ] Refactor — no functional change, no new API surface
|
|
- [ ] Test improvement
|
|
|
|
---
|
|
|
|
## Description
|
|
|
|
<!--
|
|
Provide enough context for a reviewer who was not in the room:
|
|
- What problem does this solve?
|
|
- What approach did you choose, and why?
|
|
- Were there alternatives you considered and rejected?
|
|
- Any known limitations or follow-up work?
|
|
-->
|
|
|
|
---
|
|
|
|
## Testing
|
|
|
|
- [ ] I added or updated tests that cover my changes
|
|
- [ ] All tests pass locally — `go test ./...`
|
|
- [ ] No formatting issues — `gofmt -l .` produces no output
|
|
- [ ] No vet warnings — `go vet ./...` is clean
|
|
|
|
---
|
|
|
|
## Checklist
|
|
|
|
- [ ] At most one exported type per non-test `.go` file (CT-6)
|
|
- [ ] No new external dependencies added without prior discussion in an issue
|
|
- [ ] Public API changes are reflected in `CHANGELOG.md`
|
|
- [ ] Breaking changes include a migration note in the PR description above
|
|
|
|
---
|
|
|
|
## Contributor License Agreement
|
|
|
|
> **This PR will not be merged until the CLA comment is present.**
|
|
|
|
Before a Maintainer reviews your code, you must post the following text **as a comment on this PR** — not here in the description. PR description checkboxes can be silently toggled by anyone; a comment is a timestamped, author-attributed record that cannot be quietly removed.
|
|
|
|
**Copy and post this exact text as a PR comment:**
|
|
|
|
---
|
|
|
|
> I have read the Einherjar Contributor License Agreement (CLA.md) and I agree to all its terms.
|
|
> I confirm this Contribution is my original work. I grant the Maintainers the rights described
|
|
> therein, including the right to relicense, and I retain ownership of my copyright.
|
|
> This agreement covers all future Contributions I submit to any Einherjar repository under
|
|
> this account.
|
|
|
|
---
|
|
|
|
First time contributing? Read [CLA.md](../CLA.md) for the full agreement before posting the comment.
|
|
|
|
If you are contributing on behalf of a company, an authorized representative of that company must post the comment.
|
|
|
|
<!-- Thank you for contributing to Einherjar. For those who come after. -->
|