github: add a workflow for building scylla with seastar

Signed-off-by: Kefu Chai <[email protected]>

.github/workflows/scylla.yaml

@@ -0,0 +1,47 @@
+name: Build Scylla
+
+on:
+  push:
+    branches:
+      - 'master'
+      - 'scylla'
+  schedule:
+    # only at 5AM Saturday
+    - cron: '0 5 * * SAT'
+
+permissions: {}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-scylla:
+    name: Run clang-tidy
+    runs-on: ubuntu-latest
+    container: fedora:40
+    steps:
+      - run: |
+          sudo dnf -y install git
+      - uses: actions/checkout@v4
+        with:
+          repository: scylladb/scylladb
+          submodules: true
+      - name: update seastar submodule
+        run: |
+          export GIT_EDITOR=true
+          ./scripts/refresh-submodules.sh seastar
+      - name: Install build dependencies
+        run: |
+          sudo ./install-dependencies.sh
+      - name: Generate the building system
+        run: |
+          cmake                                         \
+            -DCMAKE_BUILD_TYPE=$BUILD_TYPE              \
+            -DCMAKE_C_COMPILER=clang                    \
+            -DCMAKE_CXX_COMPILER=clang++                \
+            -G Ninja                                    \
+            -B $BUILD_DIR                               \
+            -S .
+      - run: |
+          cmake --build $BUILD_DIR --target scylla