Add GitHub CI file

.github/workflows/regression.yml

@@ -0,0 +1,38 @@
+name: Regression
+
+on:
+  # TODO: Remove. This is just for testing. It should be workflow_dispatch only.
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+  workflow_dispatch:
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install dependencies
+      run: |
+        sudo apt update
+        sudo apt install -y gcc-9 gcc-10 gcc-11 gcc-12
+
+    - name: Install CWhy
+      run: |
+        python3 -m pip install --upgrade pip
+        python3 -m pip install .
+
+    - name: Generate current prompts
+      run: python3 tests/regression.py --platform ubuntu --generate
+
+    - name: Commit
+      run: |
+        git config user.name github-actions
+        git config user.email [email protected]
+        git add tests/.regression
+        git switch -c bot/regression/ubuntu
+        git commit -m "[bot] Generate current state of CWhy prompts"
+        git push origin bot/regression/ubuntu