# sow-tools

Shared NWN build tooling for Shadows Over Westgate.

This repository owns the Go-based `sow-toolkit` binary used by the separate module and assets repositories.

## Build

Build the development binary into `tools/sow-toolkit`:

```bash
./build-tool.sh
```

Or run directly with Go:

```bash
GOCACHE="$PWD/.cache/go-build" go run ./cmd/nwn-tool --help
```

## Repository Layout

```text
cmd/nwn-tool/      CLI entrypoint
internal/app/      command wiring and console UX
internal/erf/      ERF/MOD/HAK reading and writing
internal/gff/      canonical GFF JSON and binary conversion
internal/pipeline/ build, extract, compare, and manifest workflows
internal/project/  config loading and repo scanning
internal/validator/validation and diagnostics
tools/             built development binary output
```

## Intended Consumers

- `sow-module` uses `sow-toolkit` for `build-module`, `extract`, `validate`, `compare`, and `apply-hak-manifest`
- `sow-assets` uses `sow-toolkit` for `build-haks` and validation
  - validation now fails early if duplicate asset resources would collide inside the same generated HAK
  - duplicate resources split across different HAK groups remain warnings because later HAK order can still override earlier content at runtime
- `sow-module` now also uses `sow-toolkit` for the early topdata bridge:
  - `validate-topdata`
  - `build-topdata`
  - `compare-topdata`

During development, sibling repositories can point at `../sow-tools/tools/sow-toolkit`. For pinned releases, each consumer repo can instead carry its own copy at `tools/sow-toolkit`.


## Release Automation

This repo publishes:

- `sow-toolkit-linux-amd64.tar.gz`
- `sow-toolkit-windows-amd64.exe`

Consumer repos can fetch those binaries into their local `tools/` directory with:

- `install-tool.sh` on Linux/macOS
- `install-tool.ps1` on Windows

## TopData Migration

The topdata rebuild is now staged in this repo.

Current state:

- the new command surface exists in `sow-toolkit`
- `sow-module/topdata/` is the new long-term source home
- `build-topdata` currently bridges through the Python builder in `sow-dev` for authoritative output generation
- native Go merge/build parity is still a follow-up milestone

See [TOPDATA_HANDOFF_2026-04-02.md](./TOPDATA_HANDOFF_2026-04-02.md) for the current handoff and migration notes.