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@mdrv/surrealdx

v0.0.5

Published

Schema versioning layer & migration protocol for SurrealDB

Downloads

151

Vulnerabilities

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Links

Git

Maintainers

mdrvmdrv

Keywords

surrealdbschemamigrationversioningsurrealqldx

Readme

SurrealDX

Schema versioning layer & migration protocol for SurrealDB.

SurrealDX tracks a SurrealDB database's schema as semver-versioned bundles, detects breaking changes between versions, and runs safe upgrade/downgrade rollouts in both directions.

Status

Pre-alpha. Currently targeting v0.0.1 (prototype slice). See docs/99-roadmap.md for the delivery plan.

The first real consumer is @mdrv/nx, a zettelkasten-style CLI knowledgebase.

Why

SurrealDB's schema is mutable SQL, but the ecosystem lacks a canonical way to:

  • Version schema snapshots
  • Detect breaking changes between versions
  • Run safe, reversible migrations
  • Negotiate schema versions between a consumer app and the database

SurrealDX fills that gap with a TypeScript-native, operator-first tool. It is not a user-data migration tool, a real-time sync engine (that is SurrealHub's job), or a SurrealDB v2-or-earlier compatibility layer.

Highlights

  • Semantic version graph. Versions are DAG nodes; migrations are directional edges (upgrade and downgrade authored independently).
  • Structural diff engine. Pure function over normalized schema documents; classifies changes as non-breaking, breaking, or conditionally-breaking.
  • Configurable policy. block / warn / allow per project, with per-category overrides.
  • Phased expand/contract rollouts. Non-destructive changes land first; destructive changes wait for operator confirmation.
  • Downgrade is a forward rollout, not an inverse. Independently authored, safe to publish.
  • SurrealMX-friendly. Schema-level downgrades compose cleanly with SurrealMX storage-engine history (different layers, no conflict).
  • Pure TypeScript on Bun. No Rust, no napi, no SurrealKit dependency.

Documentation

The full design lives in docs/. Start at docs/README.md for the reading order.

Key entry points:

Agents working on this repo should read AGENTS.md first.

Stack

Bun · TypeScript (strict) · surrealdb · Crustjs · LogTape · dprint · Zod · semver

License

TBD