gh action

.github/workflows/nodejs.yml

@@ -1,26 +1,16 @@
-name: Node CI
-
+name: test
 on: [push]
-
 jobs:
-  build:
-
+  test:
     runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        node-version: [12.x]
-
     steps:
-    - uses: actions/checkout@v1
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
-    - name: npm install, build, and test
-      run: |
-        npm ci
-        npm run build --if-present
-        npm test
-      env:
-        CI: true
+      - name: Check out code
+        uses: actions/checkout@v2
+      - name: Set up node
+        uses: actions/setup-node@v2
+        with:
+          node-version: '20'
+      - name: Install dependencies
+        run: yarn install --immutable
+      - name: Lint TypeScript
+        run: yarn run test