Add workflow to automatically build WASM files

.github/workflows/build_wasm.yml

@@ -0,0 +1,37 @@
+name: 'Build WebAssembly'
+
+on:
+  push:
+    branches:
+      - master
+
+  workflow_dispatch:
+    inputs:
+      build:
+        description: 'Build WASM files.'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: 'Checkout Repository'
+      uses: actions/checkout@v3
+
+    - name: 'Install wasm-pack'
+      run: |
+        curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+        export PATH="$HOME/.cargo/bin:$PATH"
+
+    - name: 'Build WebAssembly'
+      run: |
+        rustup target add wasm32-unknown-unknown
+        wasm-pack build --release --target web --out-name index
+        mkdir -p artifacts
+        find pkg -type f \( -name "*.js" -o -name "*.d.ts" -o -name "*.wasm" \) -exec cp {} artifacts \;
+
+    - name: 'Upload Artifacts'
+      uses: actions/upload-artifact@v3
+      with:
+        name: 'wasm'
+        path: artifacts/*

Cargo.toml

@@ -18,3 +18,16 @@ lto = true
 codegen-units = 1
 panic = 'abort'
 strip = true
+
+[package]
+name = 'grass-wasm'
+edition = "2021"
+
+[lib]
+path = "crates/lib/src/lib.rs"
+crate-type = ["cdylib"]
+
+[dependencies]
+wasm-bindgen = "0.2"
+grass_compiler = { path = "crates/compiler" }
+getrandom = { version = "0.2", features = ["js"] }