PR作成WF

.github/workflows/prepare-release.yaml

@@ -0,0 +1,45 @@
+name: Create PR from main to production
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  create-pr:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Fetch all branches
+        run: git fetch --all
+
+      - name: Check if there are changes between main and production
+        id: check_diff
+        run: |
+          git checkout main
+          git pull origin main
+          git checkout production
+          git pull origin production
+          DIFF=$(git diff main production)
+          if [ -z "$DIFF" ]; then
+            echo "No changes detected."
+            echo "::set-output name=changes::false"
+          else
+            echo "Changes detected."
+            echo "::set-output name=changes::true"
+          fi
+
+      - name: Create Pull Request
+        if: steps.check_diff.outputs.changes == 'true'
+        uses: peter-evans/create-pull-request@v5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          source: main
+          destination: production
+          title: 'Update production branch'
+          body: 'This PR updates the production branch with changes from the main branch.'
+          draft: false
+          base: production
+          branch: main