chore: self-maintain Node.js features

.github/dependabot.yml

@@ -1,5 +1,3 @@
-# Basic set up for three package managers
-
 version: 2
 updates:
 
@@ -8,3 +6,19 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+
+  # Maintain the Rust core. SWC publishes all of its crates from one monorepo
+  # release, so they are grouped into a single pull request.
+  - package-ecosystem: "cargo"
+    directory: "/crates/amaro"
+    schedule:
+      interval: "weekly"
+    groups:
+      swc:
+        patterns:
+          - "swc_*"
+      rust-dependencies:
+        patterns:
+          - "*"
+        exclude-patterns:
+          - "swc_*"

.github/workflows/audit.yml

@@ -6,10 +6,9 @@ on:
     - cron: '0 0 * * *'
   pull_request:
     paths:
-      - 'deps/**'
+      - 'crates/**'
       - '.github/workflows/audit.yml'
       - package.json
-      - lib/**
       - src/**
 
 jobs:
@@ -20,7 +19,7 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: EmbarkStudios/cargo-deny-action@3c6349835b2b7b196a839186cb8b78e02f7b5f25 # v2.1.1
         with:
-          manifest-path: "deps/swc/bindings/binding_nodejs_support_wasm/Cargo.toml"
+          manifest-path: "crates/amaro/Cargo.toml"
 
   typescript-audit:
     runs-on: ubuntu-latest

.github/workflows/ci.yml

@@ -27,8 +27,25 @@ jobs:
       - name: Run Biome
         run: biome ci
 
+  build-wasm:
+    name: Build WASM
+    needs: commit-lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
+        with:
+          node-version-file: '.nvmrc'
+      - name: Build WASM
+        run: node ./tools/build-wasm.js
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: wasm
+          path: lib
+          if-no-files-found: error
+
   build-and-test:
-    needs: code-quality
+    needs: [code-quality, build-wasm]
     strategy:
       fail-fast: false
       matrix:
@@ -47,6 +64,10 @@ jobs:
         uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
         with:
           node-version: ${{matrix.node}}.x
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: wasm
+          path: lib
       - run: npm install
       - run: npm run typecheck
       - run: npm run build

.github/workflows/release.yml

@@ -38,6 +38,8 @@ jobs:
           node-version-file: '.nvmrc'
           registry-url: 'https://registry.npmjs.org'
       - run: npm install
+      - name: Build WASM
+        run: node ./tools/build-wasm.js
       - run: npm run build
       - name: Create NPM release
         run: npm publish --provenance --access public

.gitignore

@@ -3,4 +3,7 @@
 node_modules
 dist
 package-lock.json
-deps/swc/target/
+# Build output of `npm run build:wasm`
+lib
+crates/amaro/target/
+crates/amaro/pkg/

README.md

@@ -1,12 +1,26 @@
 # Amaro
 
-Amaro is a wrapper around `@swc/wasm-typescript`, a WebAssembly port of the SWC TypeScript parser.
+Amaro is a Node.js wrapper around the [SWC](https://swc.rs) TypeScript parser and type stripper. Its Rust core in `crates/amaro` depends on the published SWC crates and is compiled to WebAssembly.
 It's used as an internal in Node.js for [Type Stripping](https://nodejs.org/api/typescript.html#type-stripping) but can also be used as a standalone package.
 
 > Amaro means "bitter" in Italian. It's a reference to [Mount Amaro](https://en.wikipedia.org/wiki/Monte_Amaro_(Abruzzo)) on whose slopes this package was conceived.
 
 This package provides a stable API for the TypeScript parser and allows users to upgrade to the latest version of TypeScript transpiler independently from the one used internally in Node.js.
 
+## Building from source
+
+The WebAssembly module is not checked in. Building it requires Docker, which
+runs the Rust build inside the [Node.js wasm-builder](https://github.com/nodejs/wasm-builder)
+container:
+
+```bash
+npm run build:wasm
+npm run build
+npm test
+```
+
+Releases build the module in CI before publishing.
+
 ## How to Install
 
 To install Amaro, run:

biome.json

@@ -16,7 +16,7 @@
 		"ignore": [
 			"package.json",
 			"dist/**",
-			"deps/**",
+			"crates/**",
 			"lib/**",
 			"node_modules/**",
 			"test/snapshot/**",