Enhance GitHub workflows

.github/workflows/combine-schema.v3.2.yml

@@ -83,6 +83,21 @@ jobs:
           draft: false
           delete-branch: true
 
+      - name: Wait for PR to be mergeable
+        run: |
+          echo "Waiting for PR to be mergeable..."
+          for i in {1..30}; do
+            MERGEABLE=$(gh pr view ${{ steps.create-pull-request.outputs.pull-request-url }} --json mergeable --jq .mergeable)
+            echo "MERGEABLE = $MERGEABLE"
+            if [[ "$MERGEABLE" == "MERGEABLE" || "$MERGEABLE" == "mergeable" ]]; then
+              break
+            fi
+            echo "Still not mergeable, retrying in 10s... ($i/30)"
+            sleep 10
+          done
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Enable automerge
         uses: "peter-evans/enable-pull-request-automerge@v3"
         with:

.github/workflows/validate-xml.v3.2.yml

@@ -22,14 +22,34 @@ jobs:
     steps:
       - name: Check out repository
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Check if files in 3.2 changed
+        id: changes
+        run: |
+          git fetch origin main
+          CHANGED=$(git diff --name-only origin/main...HEAD | grep '^3.2/' || true)
+          if [ -z "$CHANGED" ]; then
+            echo "skip=true" >> $GITHUB_OUTPUT
+          else
+            echo "skip=false" >> $GITHUB_OUTPUT
+          fi
 
       - name: Prepare Python environment
+        if: steps.changes.outputs.skip == 'false'
         uses: actions/setup-python@v5
         with:
           python-version: '3.x'
 
       - name: Install XML validation dependencies
+        if: steps.changes.outputs.skip == 'false'
         run: pip install -r scripts/requirements.txt
 
       - name: Validate XML datamodel against schema
+        if: steps.changes.outputs.skip == 'false'
         run: python scripts/validate_xml.py $XSD_PATH $XML_PATH
+
+      - name: Skip validation (no relevant changes)
+        if: steps.changes.outputs.skip == 'true'
+        run: echo "No relevant changes in /3.2. Skipping validation."