Update nodejs.yml (#23)

.github/workflows/nodejs.yml

@@ -0,0 +1,46 @@
+# GitHub Nodejs CI
+name: nodejs
+
+on: [pull_request]
+
+env:
+  CI: true
+  FORCE_COLOR: 2
+
+
+jobs:
+  run:
+    name: Node ${{ matrix.node }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node: ["12.x", "14.x"]
+        os: ["ubuntu-latest"]
+
+    steps:
+      - uses: actions/checkout@v2.3.4
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2.1.4
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Get yarn cache directory path
+        id: yarn-cache-dir-path
+        run: echo "::set-output name=dir::$(yarn cache dir)"
+
+# Cache Optimization 
+
+      - uses: actions/cache@v2.1.4
+        id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
+        with:
+          path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn-
+      - name: yarn install, build, and test
+        run: |
+          yarn install
+        env:
+          CI: true
+