Improved CI workflow for Windows

.github/workflows/ci.yml

@@ -94,10 +94,30 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - arch: 'x86'
+          - id: windows-x86-vs
+            triplet: x86-windows
             build_for: 'WIN32'
-          - arch: 'x64'
+            compiler: vs
+            arch: x86
+            os: windows-latest
+            generator: Ninja
+            vcpkg_root: C:/vcpkg
+          - id: windows-x64-vs
+            triplet: x64-windows
             build_for: 'WIN64'
+            compiler: vs
+            arch: x64
+            os: windows-latest
+            generator: Ninja
+            vcpkg_root: C:/vcpkg
+          - id: windows-x64-mingw
+            triplet: x64-windows
+            build_for: 'MINGW64'
+            compiler: mingw
+            arch: x64
+            os: windows-latest
+            generator: Ninja
+            vcpkg_root: C:/vcpkg
 
     runs-on: windows-latest
 
@@ -108,25 +128,57 @@ jobs:
       uses: actions/cache@v4
       with:
         path: C:/Users/runneradmin/AppData/Local/vcpkg/archives
-        key: ${{matrix.arch}}
+        key: ${{matrix.id}}-${{hashFiles('vcpkg.json')}}
+        restore-keys: |
+          ${{matrix.id}}-${{hashFiles('vcpkg.json')}}
+          ${{matrix.id}}-
 
     - name: Configure Visual Studio
+      if: matrix.compiler == 'vs'
       uses: ilammy/msvc-dev-cmd@v1
       with:
         arch: ${{matrix.arch}}
 
-    - name: Install OpenSSL with VCPKG
+    - name: Install MSYS2
+      if: matrix.compiler == 'mingw'
+      uses: msys2/setup-msys2@v2
+      with:
+        update: true
+        install: mingw-w64-x86_64-ninja
+
+    - name: Put MSYS2_MinGW64 on PATH
+      if: matrix.compiler == 'mingw'
+      run: echo "D:/a/_temp/msys64/mingw64/bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+
+    - name: Install OpenSSL with tools
       run: |
-        vcpkg install --triplet=${{matrix.arch}}-windows openssl
-        echo "C:\vcpkg\packages\openssl_${{matrix.arch}}-windows\tools\openssl" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+        vcpkg install --triplet=${{matrix.triplet}} openssl[tools]
+        echo "C:\vcpkg\packages\openssl_${{matrix.triplet}}\tools\openssl" >> $GITHUB_PATH
+        echo "PKG_CONFIG_PATH=C:\vcpkg\packages\openssl_${{matrix.triplet}}\lib\pkgconfig" >> $GITHUB_ENV
 
     - name: System information
       run: openssl version -a
 
-    - name: Build
+    - name: Build (vs)
+      if: matrix.compiler == 'vs'
       run: nmake -f Makefile.mak
         BUILD_FOR=${{matrix.build_for}}
-        OPENSSL_DIR="C:\vcpkg\packages\openssl_${{matrix.arch}}-windows"
+        OPENSSL_DIR="C:\vcpkg\packages\openssl_${{matrix.triplet}}"
+
+    - name: Build (mingw)
+      if: matrix.compiler == 'mingw'
+      run: |
+        ./configure
+        make
+
+    - name: Test
+      if: matrix.compiler == 'mingw'
+      timeout-minutes: 5
+      run: make check
+
+    - name: Results of tests
+      if: matrix.compiler == 'mingw'
+      run: cat /tests/test-suite.log || true
 
     - name: Upload the DLLs
       uses: actions/upload-artifact@v4