# unity-assetdb
Walks a Unity project's `Assets/` tree, parses `.meta` and asset YAML, and writes a
compact bincode index that maps asset GUIDs (and sub-asset fileIDs) to human-readable
names. Designed for tooling that needs to reason about Unity assets by name without
loading the editor.
Originally extracted from a Unity prefab YAML ↔ JSON converter. Reusable by
any tool that wants the same GUID→name index — e.g. a Rust-side
asset-catalog baker for the Unity client.
## Crate layout
- `store` — on-disk schema (`AssetDb`, `AssetEntry`, `SubAsset`, `AssetType`).
- `class_id` — Unity classID enum (`Sprite=213`, `Prefab=1001`, …).
- `meta` — `.meta` parser (top-level GUID, sprite-sheet sub-assets, importer fields).
- `asset` — asset YAML parser (top class ID, `m_Script.guid`, sub-doc enumeration).
- `walk` — project-root resolver + parallel `Assets/` walker.
- `bake` — orchestrator: `BakeOptions { project_root, out_dir, name_sanitizer, on_warn, on_progress }`.
## CLI
```sh
unity-assetdb bake [--project <path>] [--out-dir <path>]
```
Without `--project`, walks up from the cwd until both `Assets/` and `ProjectSettings/`
are found. Without `--out-dir`, writes to `<project>/Library/unity-assetdb/`.
## Status
- **API stability:** pre-1.0; signatures may shift.
- **Errors:** internal `anyhow::Result` everywhere. Public API will move to
`thiserror` types before 1.0.