publish to NPM via action

.github/workflows/publish.yml

@@ -0,0 +1,21 @@
+name: Publish to NPM
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v1
+      with:
+        node-version: 12
+        registry-url: https://registry.npmjs.org/
+    - run: npm ci
+    - run: node cli.js env
+    - run: npm test
+    - run: npm publish --access public
+      env:
+        NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/test.yml

@@ -1,8 +1,9 @@
-name: Test
+name: Run tests
+
 on: [push, pull_request]
 
 jobs:
-  run:
+  test:
     name: Node ${{ matrix.node }}
     runs-on: ubuntu-latest
     strategy:
@@ -14,5 +15,6 @@ jobs:
     - uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node }}
-    - run: npm install
+    - run: npm ci
+    - run: node cli.js env
     - run: npm test