ci check lint only on changed files

.github/workflows/ci-pr.yml

@@ -0,0 +1,71 @@
+name: CI Pull Request
+
+on:
+  # Triggers the workflow on pull request events but only for the dev branch, checking only diffs
+  pull_request:
+    branches: [dev]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js 16.13.1
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16.13.1
+          cache: "npm"
+      - name: Install npm dependencies
+        run: npm ci
+      - name: Build the production app
+        run: npm run build
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Use Node.js 16.13.1
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16.13.1
+          cache: "npm"
+      - name: Install npm dependencies
+        run: npm ci
+      - name: Run linter
+        run: npm run lint:report-diff
+  prettier:
+    name: Prettier
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Use Node.js 16.13.1
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16.13.1
+          cache: "npm"
+      - name: Install npm dependencies
+        run: npm ci
+      - name: Run prettier check
+        run: npm run format:report-diff
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js 16.13.1
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16.13.1
+          cache: "npm"
+      - name: Install npm dependencies
+        run: npm ci
+      - name: Run tests
+        run: npm run test

.github/workflows/ci.yml

@@ -1,11 +1,9 @@
 name: CI
 
 on:
-  # Triggers the workflow on push or pull request events but only for the dev branch
+  # Triggers the workflow on push events but only for the dev branch
   push:
     branches: [dev]
-  pull_request:
-    branches: [dev]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch: