Change linux CI check to more closely mirror main repo

.github/workflows/ubuntu.yml

@@ -2,74 +2,38 @@ name: Ubuntu build
 
 on: [push]
 
-env:
-  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
-  BUILD_TYPE: Release
-  REPO_DIR : ${{github.workspace}}
-  BUILD_DIR: ${{github.workspace}}/bin/builddir
-
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
-    permissions:
-      contents: read
-
-    strategy:
-      matrix:
-       include:
-#          - os: ubuntu-22.04
-#            COMPILER_CC: gcc-12
-#            COMPILER_PP: g++-12
-#            USE_PCH: 1
-#            EXTRA_BUILD: ""
-
-          - os: ubuntu-22.04
-            COMPILER_CC: clang-14
-            COMPILER_PP: clang++-14
-            USE_PCH: 1
-            EXTRA_BUILD: "-DTOOLS=1 "
-
-          - os: ubuntu-22.04
-            COMPILER_CC: clang-14
-            COMPILER_PP: clang++-14
-            USE_PCH: 0
-            EXTRA_BUILD: ""
-
+    runs-on: ubuntu-20.04
     steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          path: ${{env.REPO_DIR}}
-          submodules: true
-
-      - name: Create Build Environment
-        run: |
-          echo "GITHUB_SHORT_REV=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
-          echo "ARCHIVE_FILENAME=${{ github.event.repository.name }}-$(git rev-parse --short HEAD).zip" >> $GITHUB_ENV
-          echo "CC=${{matrix.COMPILER_CC}}" >> $GITHUB_ENV
-          echo "CXX=${{matrix.COMPILER_PP}}" >> $GITHUB_ENV
-          cmake -E make_directory ${{ env.BUILD_DIR }}
-
-      - name: Install Dependencies
-        run: |
-          sudo apt-get update && sudo apt-get install -yq libboost-all-dev
-
-      - name: Configure
-        env:
-          USE_PCH: ${{ matrix.USE_PCH }}
-          EXTRA_BUILD: ${{ matrix.EXTRA_BUILD }}
-        run: cmake -DUSE_COREPCH=${{env.USE_PCH}} -DUSE_SCRIPTPCH=${{env.USE_PCH}} -DELUNA=1 -DNOJEM=0 -DSCRIPTS=static -DSERVERS=1 ${{env.EXTRA_BUILD}}-B ${{env.BUILD_DIR}} -S ${{env.REPO_DIR}} -DCMAKE_INSTALL_PREFIX=check_install -DBUILD_TESTING=1
-
-      - name: Build
-        env:
-          MAKEFLAGS: "-j8"
-        run: cmake --build ${{env.BUILD_DIR}} --config ${{env.BUILD_TYPE}} && cmake --build ${{env.BUILD_DIR}} --config ${{env.BUILD_TYPE}} -- install
-
-      - name: Unit tests
-        run: cmake --build ${{env.BUILD_DIR}} --config ${{env.BUILD_TYPE}} -- test     
-
-      - name: Check executables
-        run: |
-          cd check_install/bin
-          ./bnetserver --version
-          ./worldserver --version
+    - uses: actions/checkout@v3
+      with:
+        submodules: true
+
+    - name: Dependencies
+      run: |
+        sudo apt-get update && sudo apt-get install -yq libboost-all-dev g++-10
+        sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 --slave /usr/bin/g++ g++ /usr/bin/g++-10
+    
+    - name: Setup
+      run: |
+        mkdir bin
+        cd bin
+        cmake ../ -DWITH_COREDEBUG=0 -DUSE_COREPCH=1 -DUSE_SCRIPTPCH=1 -DELUNA=1 -DTOOLS=1 -DSCRIPTS=static -DSERVERS=1 -DNOJEM=0 -DCMAKE_INSTALL_PREFIX=check_install -DBUILD_TESTING=1
+        cd ..
+    
+    - name: Build
+      run: |
+        cd bin
+        make -j 4 -k && make install
+    
+    - name: Unit tests
+      run: |
+        cd bin
+        make test
+    
+    - name: Check executables
+      run: |
+        cd bin/check_install/bin
+        ./bnetserver --version
+        ./worldserver --version