feat: add labeler

.github/workflows/pull_request.yml

@@ -11,16 +11,79 @@ concurrency:
 jobs:
   pr_format:
     name: Format
+    permissions:
+      contents: read
+      pull-requests: write
     runs-on: ubuntu-latest
     steps:
       - name: Setup Node.js environment
         uses: actions/setup-node@v3
         with:
-          node-version: "18"
+          node-version: '18'
 
       - name: Checkout
         uses: actions/checkout@v3
 
+      - name: Detect changes in specific directories
+        id: detect_changes
+        uses: dorny/paths-filter@v2
+        with:
+          filters: |
+            react:
+              - 'react/**'
+            angular:
+              - 'angular/**'
+            node:
+              - 'node/**'
+            stage0:
+              - 'stage0/**'
+            stage1:
+              - 'stage1/**'
+            stage2:
+              - 'stage2/**'
+
+      - name: Add 'react' label
+        if: steps.detect_changes.outputs.react == 'true'
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          labels: |
+            react
+
+      - name: Add 'angular' label
+        if: steps.detect_changes.outputs.angular == 'true'
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          labels: |
+            angular
+
+      - name: Add 'node' label
+        if: steps.detect_changes.outputs.node == 'true'
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          labels: |
+            node
+
+      - name: Add 'stage#0' label
+        if: steps.detect_changes.outputs.stage0 == 'true'
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          labels: |
+            stage#0
+
+      - name: Add 'stage#1' label
+        if: steps.detect_changes.outputs.stage1 == 'true'
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          labels: |
+            stage#1
+
+      - name: Add 'stage#2' label
+        if: steps.detect_changes.outputs.stage2 == 'true'
+        uses: actions-ecosystem/action-add-labels@v1
+        with:
+          labels: |
+            stage#2
+
       - name: Install dependencies
         uses: bahmutov/npm-install@v1