update lb action

.github/workflows/update_leaderboard_after_merge.yaml

@@ -0,0 +1,64 @@
+name: Update leaderboard on PR Merge.
+
+on:
+  push:
+    branches:
+      - development
+
+jobs:
+  leaderboard_evaluation:
+    runs-on: ubuntu-latest
+      - uses: actions/checkout@v4
+        with:
+          # This may save additional git fetch roundtrip if
+          # merge-base is found within latest 20 commits
+          fetch-depth: 20    
+      # Check changes in the source branch of the PR
+      - name: Check if there are any changes in submissions dir
+        uses: dorny/[email protected]
+        id: changes
+        with:
+          filters: |
+            src:
+              - 'session_2/challenge/submissions/**'
+          list-files: "shell"
+
+      - name: Print changed files
+        run: |
+          echo '${{ toJSON(steps.changes.outputs) }}'
+                        
+      # # Update leaderboard only if single file is changed in submission dir
+      # - if: ${{ (steps.changes.outputs.src == 'true') && (steps.changes.outputs.src_count == 1) }}
+      #   name: Checkout code
+      #   uses: actions/checkout@v4
+      #   with:
+      #     # Here we checkout the target branch of the PR
+      #     ref: ${{ github.event.pull_request.base.ref }}
+      #     token: ${{ secrets.GH_PAT }}
+
+      # - if: ${{ (steps.changes.outputs.src == 'true') && (steps.changes.outputs.src_count == 1) }}
+      #   name: Install Python
+      #   uses: actions/setup-python@v5
+      #   with:
+      #     python-version: "3.10"
+
+      # - if: ${{ (steps.changes.outputs.src == 'true') && (steps.changes.outputs.src_count == 1) }}
+      #   name: Install dependencies
+      #   run: |
+      #     python -m pip install --upgrade pip
+      #     pip install -r session_2/challenge/requirements.txt
+
+      # - if: ${{ (steps.changes.outputs.src == 'true') && (steps.changes.outputs.src_count == 1) }}
+      #   name: Run leaderboard update script
+      #   id: leaderboard-update
+      #   run: |
+      #     cd session_2/challenge
+      #     filename=$(basename "${{ steps.changes.outputs.src_files }}")
+      #     filename_without_extension="${filename%.*}"  # Remove extension          
+      #     python -m scripts.leaderboard --github_user="${{ github.event.pull_request.user.login }}" --prompt="$filename_without_extension"
+
+      # - if: ${{ (steps.changes.outputs.src == 'true') && (steps.changes.outputs.src_count == 1) }}
+      #   name: Commit changes
+      #   uses: EndBug/add-and-commit@v9
+      #   with:
+      #     default_author: github_actions