github: Add Windows support for some standalone steps

The actual build & link still needs to be done

.github/actions/setup/action.yml

@@ -19,7 +19,9 @@ runs:
       sudo mv /tmp/wabt-1.0.30/lib/*.a /usr/local/lib
     shell: bash
   - if: runner.os == 'Windows'
-    run: echo "Not supported yet"
-    shell: cmd
+    run: |
+      curl -L -s https://github.com/WebAssembly/wabt/releases/download/1.0.30/wabt-1.0.30-windows.tar.gz | tar xvz -C /c/tools
+      cp /c/tools/wabt-1.0.30/bin/* /c/Windows/system32
+    shell: bash
   - run: yarnpkg --pure-lockfile
     shell: bash

.github/workflows/build-standalone.yml

@@ -10,10 +10,14 @@ jobs:
   build-standalone:
     strategy:
       matrix:
-        os: [macos-latest, ubuntu-18.04]
+        os: [macos-latest, ubuntu-18.04, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
       - uses: ./.github/actions/setup
       - run: make -C src/standalone install-deps all
-      - run: make -C src/standalone check
+        # TODO: Windows support
+        if: runner.os != 'Windows'
+      - run: make -C src/standalone check
+        # TODO: Windows support
+        if: runner.os != 'Windows'

build-package.js

@@ -23,7 +23,9 @@ let buildConfig = {
 
 esbuild.build(buildConfig).then(
   () => {
-    execSync("./node_modules/.bin/tsc --project tsconfig.package.json");
+    execSync(
+      "node node_modules/typescript/bin/tsc --project tsconfig.package.json"
+    );
   },
   () => process.exit(1)
 );