[ci] Reduce repetition (#63)

Fixes #42.

Author: mcbarton

.github/workflows/main.yml

@@ -14,7 +14,7 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  unix:
+  build:
 
     runs-on: ${{ matrix.os }}
 
@@ -32,6 +32,8 @@ jobs:
             os: macos-13
           - name: osx14-arm
             os: macos-14
+          - name: Windows22
+            os: windows-2022
 
     steps:
       - uses: actions/checkout@v3
@@ -42,12 +44,30 @@ jobs:
           environment-file: environment-dev.yml
           environment-name: xeus-cpp
 
+      - name: micromamba shell hook
+        if: ${{ runner.os == 'windows' }}
+        shell: powershell
+        run: |
+          micromamba shell hook -s cmd.exe -p C:\Users\runneradmin\micromamba-root
+
       - name: install cxx compiler
+        if: ${{ runner.os != 'windows' }}
         shell: bash -l {0}
         run: |
           $HOME/micromamba-bin/micromamba install cxx-compiler -c conda-forge -y
 
+
+      - name: cmake configure
+        if: ${{ runner.os == 'windows' }}
+        shell: cmd
+        run: |
+          call C:\Users\runneradmin\micromamba-root\condabin\micromamba.bat activate xeus-cpp
+          mkdir -p build
+          cd build
+          cmake .. -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DXEUS_BUILD_TESTS=ON -DDEPENDENCY_SEARCH_PREFIX="%CONDA_PREFIX%\Library" -DCMAKE_PREFIX_PATH="%CONDA_PREFIX%\Library" -DCMAKE_INSTALL_PREFIX="%CONDA_PREFIX%"
+
       - name: cmake configure
+        if: ${{ runner.os != 'windows' }}
         shell: bash -l {0}
         run: |
           mkdir -p build
@@ -58,26 +78,32 @@ jobs:
            -DXEUS_CPP_ENABLE_CODE_COVERAGE=${{ matrix.coverage }} \
            ${{ matrix.extra_cmake_flags }}
 
-      - name: build
-        shell: bash -l {0}
+      - name: build & install
+        if: ${{ runner.os == 'windows' }}
+        shell: cmd
         run: |
+          call C:\Users\runneradmin\micromamba-root\condabin\micromamba.bat activate xeus-cpp
           cd build
-          make -j8
+          set CL=/MP
+          nmake install
 
-      - name: install
+      - name: build & install
+        if: ${{ runner.os != 'windows' }}
         shell: bash -l {0}
         run: |
           cd build
-          make install
+          make install -j 8
 
       - name: Test xeus-cpp C++
+        if: ${{ runner.os != 'windows' }}
         shell: bash -l {0}
         run: |
           cd build/test
           ./test_xeus_cpp
         timeout-minutes: 4
 
       - name: test
+        if: ${{ runner.os != 'windows' }}
         shell: bash -l {0}
         run: |
           cd test
@@ -109,44 +135,6 @@ jobs:
         uses: mxschmitt/action-tmate@v3
         # When debugging increase to a suitable value!
         timeout-minutes: 30
-  win:
-    
-    runs-on: ${{ matrix.os }}
-     
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ windows-2022]
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: install mamba
-        uses: mamba-org/provision-with-micromamba@main
-        with:
-          environment-file: environment-dev.yml
-          environment-name: xeus-cpp
-
-      - name: micromamba shell hook
-        shell: powershell
-        run: |
-          micromamba shell hook -s cmd.exe -p C:\Users\runneradmin\micromamba-root
-
-      - name: cmake configure
-        shell: cmd
-        run: |
-          call C:\Users\runneradmin\micromamba-root\condabin\micromamba.bat activate xeus-cpp
-          mkdir -p build
-          cd build
-          cmake .. -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DXEUS_BUILD_TESTS=ON -DDEPENDENCY_SEARCH_PREFIX="%CONDA_PREFIX%\Library" -DCMAKE_PREFIX_PATH="%CONDA_PREFIX%\Library" -DCMAKE_INSTALL_PREFIX="%CONDA_PREFIX%"
-
-      - name: build
-        shell: cmd
-        run: |
-          call C:\Users\runneradmin\micromamba-root\condabin\micromamba.bat activate xeus-cpp
-          cd build
-          set CL=/MP
-          nmake install
 
   emscripten_wasm: