build: cli checks

.github/workflows/checks.yml

@@ -0,0 +1,51 @@
+name: Checks
+
+on:
+  pull_request:
+    paths:
+      - 'cli/**'
+
+defaults:
+  run:
+    working-directory: ./cli
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Prepare
+        uses: ./.github/actions/prepare
+      - name: Build
+        run: npm run build
+
+  format:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Prepare
+        uses: ./.github/actions/prepare
+      - name: Lint
+        run: npm run format:check
+
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Prepare
+        uses: ./.github/actions/prepare
+      - name: Lint
+        run: npm run lint
+
+  may-merge:
+    needs: ['format', 'lint', 'build']
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cleared for merging
+        run: echo OK