Added generate codemeta

.github/workflows/generate-codemeta.yaml

@@ -0,0 +1,58 @@
+name: Generate CodeMeta with SOMEF
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write   # needed to push changes
+
+jobs:
+  codemeta:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install SOMEF
+        run: |
+          python -m pip install --upgrade pip
+          pip install somef
+
+      - name: Configure SOMEF (auto)
+        run: somef configure -a
+
+      - name: Generate codemeta.json
+        env:
+          REPO_URL: https://github.com/${{ github.repository }}
+        run: |
+          somef describe -r "$REPO_URL" -t 0.8 -c codemeta.json
+
+      - name: Commit and push codemeta.json (only if created and not already tracked)
+        if: github.event_name != 'pull_request'
+        run: |
+
+          # If codemeta.json is already tracked in the repo, don't add/commit it
+          if git ls-files --error-unmatch codemeta.json > /dev/null 2>&1; then
+            echo "codemeta.json is already tracked in the repository. Skipping git add"
+          else
+            git add codemeta.json
+          fi
+
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+          # Commit only if staging has changes (defensive)
+          if ! git diff --cached --quiet; then
+            git commit -m "chore: add autogenerated codemeta.json with SOMEF"
+            git push
+          else
+            echo "No changes to commit."
+          fi