add github actions

Author: EPTansuo

.github/workflows/autotest.yml

@@ -0,0 +1,40 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      # - name: Set up Python
+      #   uses: actions/setup-python@v5
+      #   with:
+      #     python-version: '3.11'
+
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y cmake g++ python3-dev pybind11-dev
+
+      - name: Configure with CMake
+        run: cmake .
+
+      - name: Build with make
+        run: make -j$(nproc)
+
+      - name: Run Python diff tests
+        run: |
+          python ./difftest/test.py | tee test_output.log
+
+          if sed 's/\x1b\[[0-9;]*m//g' test_output.log | grep -q "FAIL"; then
+            echo "Detected FAIL in test output, marking CI as failed."
+            exit 1
+          else
+            echo "All tests passed."
+          fi