Build Windows CI builds with vcpkg and Qt 6 (#2112)

If using Qt 6 becomes a problem in terms of compatibility, toggle it off in the CMakePresets.json.

.github/workflows/build-windows.yml

@@ -8,36 +8,30 @@ on:
     branches:
       - master
 
-env:
-  BUILD_TYPE: Release
-
 jobs:
   build:
-
     runs-on: windows-latest
-    
     defaults:
       run:
         shell: msys2 {0}
     steps:
-    - uses: actions/checkout@v1
+    - name: Check out sources
-    - uses: msys2/setup-msys2@v2
+      uses: actions/checkout@v3
+    - name: Set up MSYS2
+      uses: msys2/setup-msys2@v2
       with:
-          msystem: MINGW64
+        msystem: ucrt64
         update: true
-
+        pacboy: gcc:p cmake:p ninja:p make:p
-    - name: Install dependencies
+    - name: Set up vcpkg
-      run: pacman -Sq --noconfirm git pkgconf mingw-w64-x86_64-{cmake,SDL2,qt5-static,libarchive,toolchain}
+      uses: lukka/run-vcpkg@v11
-
+      with:
+        vcpkgGitCommitId: 53bef8994c541b6561884a8395ea35715ece75db
     - name: Configure
-      working-directory: ${{runner.workspace}}
+      run: cmake --preset=release-mingw-x86_64
-      run: cmake -B build $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DBUILD_STATIC=ON -DCMAKE_PREFIX_PATH=C:/tools/msys64/mingw64/qt5-static
+    - name: Build
-
+      run: cmake --build --preset=release-mingw-x86_64
-    - name: Make
+    - uses: actions/upload-artifact@v4
-      working-directory: ${{runner.workspace}}/build
-      run: cmake --build .
-
-    - uses: actions/upload-artifact@v1
       with:
         name: melonDS-windows-x86_64
-        path: ${{runner.workspace}}\build\melonDS.exe
+        path: .\build\release-mingw-x86_64\melonDS.exe

CMakePresets.json

@@ -20,6 +20,23 @@
         }
       }
     },
+    {
+      "name": "release-mingw-x86_64",
+      "inherits": "release-vcpkg",
+      "displayName": "Windows MinGW release (x86_64)",
+      "binaryDir": "${sourceDir}/build/release-mingw-x86_64",
+      "generator": "Ninja",
+      "cacheVariables": {
+        "USE_QT6": {
+          "type": "BOOL",
+          "value": "ON"
+        },
+        "BUILD_STATIC": {
+          "type": "BOOL",
+          "value": "ON"
+        }
+      }
+    },
     {
       "name": "release-mac-x86_64",
       "inherits": "release-vcpkg",
@@ -44,6 +61,10 @@
       "name": "release-vcpkg",
       "configurePreset": "release-vcpkg"
     },
+    {
+      "name": "release-mingw-x86_64",
+      "configurePreset": "release-mingw-x86_64"
+    },
     {
       "name": "release-mac-x86_64",
       "configurePreset": "release-mac-x86_64"

cmake/ConfigureVcpkg.cmake

@@ -4,7 +4,9 @@ set(_DEFAULT_VCPKG_ROOT "${CMAKE_SOURCE_DIR}/vcpkg")
 set(VCPKG_ROOT "${_DEFAULT_VCPKG_ROOT}" CACHE STRING "The path to the vcpkg repository")
 
 if (VCPKG_ROOT STREQUAL "${_DEFAULT_VCPKG_ROOT}")
+    if (APPLE) # this doesn't work on non-macOS
         file(LOCK "${_DEFAULT_VCPKG_ROOT}" DIRECTORY GUARD FILE)
+    endif()
     FetchContent_Declare(vcpkg
         GIT_REPOSITORY "https://github.com/Microsoft/vcpkg.git"
         GIT_TAG 2024.01.12
@@ -16,6 +18,18 @@ set(VCPKG_OVERLAY_TRIPLETS "${CMAKE_SOURCE_DIR}/cmake/overlay-triplets")
 
 option(USE_RECOMMENDED_TRIPLETS "Use the recommended triplets that are used for official builds" ON)
 
+# Duplicated here because it needs to be set before project()
+if (NOT WIN32)
+    option(USE_QT6 "Build using Qt 6 instead of 5" ON)
+else()
+    option(USE_QT6 "Build using Qt 6 instead of 5" OFF)
+endif()
+
+if (NOT USE_QT6)
+    list(APPEND VCPKG_MANIFEST_FEATURES qt5)
+    set(VCPKG_MANIFEST_NO_DEFAULT_FEATURES ON)
+endif()
+
 if (CMAKE_OSX_ARCHITECTURES MATCHES ";")
     message(FATAL_ERROR "macOS universal builds are not supported. Build them individually and combine afterwards instead.")
 endif()
@@ -47,7 +61,7 @@ if (USE_RECOMMENDED_TRIPLETS)
     elseif(WIN32)
         # TODO Windows arm64 if possible
         set(_CAN_TARGET_AS_HOST ON)
-        set(_WANTED_TRIPLET x64-mingw-static)
+        set(_WANTED_TRIPLET x64-mingw-static-release)
     endif()
 
     # Don't override it if the user set something else

cmake/overlay-triplets/x64-mingw-static-release.cmake

@@ -0,0 +1,7 @@
+set(VCPKG_TARGET_ARCHITECTURE x64)
+set(VCPKG_CRT_LINKAGE dynamic)
+set(VCPKG_LIBRARY_LINKAGE static)
+set(VCPKG_ENV_PASSTHROUGH PATH)
+set(VCPKG_BUILD_TYPE release)
+
+set(VCPKG_CMAKE_SYSTEM_NAME MinGW)

vcpkg.json

@@ -1,12 +1,14 @@
 {
+	"default-features": ["qt6"],
 	"dependencies": [
 		"sdl2",
-		{
+		"libarchive",
-			"name": "libarchive",
+		"zstd"
-			"default-features": false,
+	],
-			"features": ["bzip2", "crypto", "lz4", "zstd"]
+	"features": {
-		},
+		"qt6": {
-		"zstd",
+			"description": "Use Qt 6 for the frontend.",
+			"dependencies": [
 				{
 					"name": "qtbase",
 					"default-features": false,
@@ -23,4 +25,22 @@
 				},
 				"qtsvg"
 			]
+		},
+		"qt5": {
+			"description": "Use Qt 5 for the frontend.",
+			"dependencies": [
+				{
+					"name": "qt5-base",
+					"default-features": false
+				},
+				{
+					"name": "qt5-base",
+					"host": true,
+					"default-features": false
+				},
+				"qt5-multimedia",
+				"qt5-svg"
+			]
+		}
+	}
 }