Build: add labels based on Dependabot PRs

Author: uniqueck

.github/workflows/dependabot-auto-label.yml

@@ -0,0 +1,32 @@
+name: Dependabot auto-label
+on: pull_request
+
+permissions:
+  pull-requests: write
+  issues: write
+
+jobs:
+    dependabot:
+      runs-on: ubuntu-latest
+      if: github.event.pull_request.user.login == 'dependabot[bot]' && github.repository == 'uniqueck/htmlSanityCheck.js'
+      steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@d7267f607e9d3fb96fc2fbe83e0af444713e90b7
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+      - name: Add a label for all production dependencies
+        if: steps.metadata.outputs.dependency-type == 'direct:production'
+        run: gh pr edit "$PR_URL" --add-label "dep:production"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+      - name: Add a label for all development dependencies
+        if: steps.metadata.outputs.dependency-type == 'direct:development'
+        run: gh pr edit "$PR_URL" --add-label "dep:development"
+        env:
+            PR_URL: ${{github.event.pull_request.html_url}}
+      - name: Add a label for all indirect dependencies
+        if: steps.metadata.outputs.dependency-type == 'direct:indirect'
+        run: gh pr edit "$PR_URL" --add-label "dep:indirect"
+        env:
+            PR_URL: ${{github.event.pull_request.html_url}}