Extend CI workflows to build NPM package (#5)

.github/workflows/build.yml

@@ -1,15 +1,22 @@
 name: Build
 
-on: [pull_request, push]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
 
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
 
     strategy:
       matrix:
-        node-version: [8.x, 10.x, 12.x]
+        os: [ubuntu-latest, windows-latest]
+        node-version: [10.x, 12.x]
 
     steps:
     - uses: actions/checkout@v2

.github/workflows/package.yml

@@ -0,0 +1,31 @@
+name: Package
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node-version: [10.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm run compile
+    - run: npm pack
+    - name: Save package artifact
+      uses: actions/upload-artifact@v2
+      with:
+        name: generator-wasm-oci
+        path: generator-wasm-oci-*.tgz

.gitignore

@@ -1,3 +1,4 @@
 node_modules
 coverage
 generators/**/*
+*.tgz