Create Github Action to generate index file

.github/workflows/blank.yml

@@ -0,0 +1,43 @@
+name: Generate Index
+
+on:
+  # Triggers the workflow on push or pull request events but only for the "main" branch
+  push:
+    branches: 
+     - "**"
+  pull_request:
+      types: [opened, reopened, synchronize, edited]
+
+jobs:
+  build:
+    name: "Generate index and readme"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v3
+        with:
+          ref: ${{github.head_ref}}
+
+      - name: Setup PHP Action
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.1'
+
+      - name: Check committer
+        id: check
+        run: |
+          COMMITTER=$(git log -1 --pretty=format:'%ae')
+          echo "COMMITTER=$COMMITTER" >> $GITHUB_ENV
+    
+      - name: Run script
+        run: php .github/workflows/scripts/generate_index.php
+        if: env.COMMITTER != '[email protected]'
+
+      - name: Commit and push if it changed
+        run: | 
+          git diff
+          git config --local user.email "[email protected]"
+          git config --local user.name "GitHub Action"
+          git commit -am "Update index.json and README.md" || exit 0
+          git push