Add self-extracting launcher for Windows

.github/workflows/windows.yml

@@ -33,40 +33,64 @@ on:
 
 jobs:
   mingw:
-    name: "MinGW cross-compiler (${{ matrix.bits }}-bit)"
+    name: "MinGW cross-compiler (${{ matrix.config.bits }}-bit)"
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
-        bits: [32, 64]
+        config:
+          - { bits: 32, nsis: false }
+          - { bits: 64, nsis: true }
     steps:
       - uses: actions/checkout@v6
       - name: Install compiler
         run: |
-          sudo dpkg --add-architecture i386
+          source ./util/ci/common.sh
-          sudo apt-get update
+          install_mingw_deps '${{matrix.config.bits}}' '${{matrix.config.nsis}}'
-          sudo apt-get install -y --no-install-recommends gettext wine wine${{ matrix.bits }}
+          if '${{matrix.config.nsis}}'; then
+            echo 'CMAKE_CXX_COMPILER_LAUNCHER=ccache' >>$GITHUB_ENV
+          fi
           sudo ./util/buildbot/download_toolchain.sh /usr
 
       - name: Build
         run: |
            EXISTING_MINETEST_DIR=$PWD \
-           ./util/buildbot/buildwin${{ matrix.bits }}.sh B
+           ./util/buildbot/buildwin${{ matrix.config.bits }}.sh B
+           mkdir -p artifact
+           cp -v B/build/*.zip artifact/
 
       # Check that the resulting binary can run (DLLs etc.)
       - name: Runtime test
         run: |
           dest=$(mktemp -d)
-          unzip -q -d "$dest" B/build/*.zip
+          unzip -q -d "$dest" artifact/*.zip
           cd "$dest"/luanti-*-win*
           wine bin/luanti.exe --version
 
+      - name: Build for NSIS
+        run: |
+           EXISTING_MINETEST_DIR=$PWD \
+           ./util/buildbot/buildwin${{ matrix.config.bits }}.sh B -DRUN_IN_PLACE=0
+           dest=$(mktemp -d)
+           unzip -q -d "$dest" B/build/*.zip
+           cd "$dest"/luanti-*-nsis
+           makensis -WX -V3 sfx-launcher.nsi
+           cp -v "$dest"/*.exe $GITHUB_WORKSPACE/artifact/
+        if: ${{ matrix.config.nsis }}
+
       - uses: actions/upload-artifact@v5
         with:
-          name: "mingw${{ matrix.bits }}"
+          name: "mingw${{ matrix.config.bits }}"
-          path: B/build/*.zip
+          path: artifact/*.zip
           if-no-files-found: error
 
+      - uses: actions/upload-artifact@v5
+        with:
+          name: "mingw${{ matrix.config.bits }}-nsis"
+          path: artifact/*.exe
+          if-no-files-found: error
+        if: ${{ matrix.config.nsis }}
+
   msvc:
     name: VS 2022 ${{ matrix.config.arch }}
     runs-on: windows-2025

CMakeLists.txt

@@ -301,7 +301,7 @@ add_subdirectory(lib/tiniergltf)
 # Be sure to add all relevant definitions above this
 add_subdirectory(src)
 
-# CPack
+# Package generation
 
 set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "A free open-source voxel game engine with easy modding and game creation.")
 set(CPACK_PACKAGE_VERSION_MAJOR ${VERSION_MAJOR})
@@ -327,6 +327,21 @@ if(WIN32)
 		set(CPACK_PACKAGE_FILE_NAME "${PROJECT_NAME}-${VERSION_STRING}-win32")
 	endif()
 
+	if(NOT RUN_IN_PLACE)
+		set(CPACK_PACKAGE_FILE_NAME "${PROJECT_NAME}-${VERSION_STRING}-nsis")
+		install(FILES "misc/luanti-icon.ico" DESTINATION ".")
+		install(FILES "misc/sfx-launcher.nsi" DESTINATION ".")
+		# normalize to 0/1
+		set(DEVELOPMENT_BUILD01 0)
+		if(DEVELOPMENT_BUILD)
+			set(DEVELOPMENT_BUILD01 1)
+		endif()
+		configure_file("${CMAKE_CURRENT_SOURCE_DIR}/misc/meta.nsh.in"
+			"${CMAKE_CURRENT_BINARY_DIR}/misc/meta.nsh" @ONLY ESCAPE_QUOTES)
+		install(FILES "${CMAKE_CURRENT_BINARY_DIR}/misc/meta.nsh" DESTINATION ".")
+	endif()
+
+	# we just generate a ZIP file and someone has to run makensis manually
 	set(CPACK_GENERATOR ZIP)
 elseif(APPLE)
 	set(CPACK_INCLUDE_TOPLEVEL_DIRECTORY 0)

misc/meta.nsh.in

@@ -0,0 +1,6 @@
+!define PROJECT_NAME "@PROJECT_NAME@"
+!define PROJECT_NAME_C "@PROJECT_NAME_CAPITALIZED@"
+!define VERSION_STRING "@VERSION_STRING@"
+!define DEVELOPMENT_BUILD @DEVELOPMENT_BUILD01@
+!define INPATH "."
+!define ICONPATH "./luanti-icon.ico"

misc/sfx-launcher.nsi

@@ -0,0 +1,100 @@
+!include "meta.nsh"
+# useful docs: <https://nsis.sourceforge.io/Docs/Chapter4.html>
+
+OutFile "..\${PROJECT_NAME_C}-${VERSION_STRING}.exe"
+Name "${PROJECT_NAME_C}"
+Icon "${ICONPATH}"
+SetCompressor /SOLID lzma
+SetDateSave off
+RequestExecutionLevel user
+
+VIAddVersionKey "CompanyName" "${PROJECT_NAME_C} community"
+VIAddVersionKey "FileDescription" "${PROJECT_NAME_C} self-extracting launcher"
+VIAddVersionKey "FileVersion" "${VERSION_STRING}"
+VIAddVersionKey "ProductName" "${PROJECT_NAME_C}"
+VIAddVersionKey "InternalName" "${PROJECT_NAME}"
+VIAddVersionKey "LegalCopyright" "(c) 2010-2025 Perttu Ahola (celeron55) and contributors"
+# these are required, but don't take arbitrary strings
+VIProductVersion "0.0.0.0"
+VIFileVersion "0.0.0.0"
+
+!if ${DEVELOPMENT_BUILD} == 1
+# since the version string needs to be unique for the "extract once" logic to work,
+# and dev builds may not have one we choose to just always extract
+!define TARGET_DIR "$TEMP\${PROJECT_NAME}-dev"
+!else
+!if ${DEVELOPMENT_BUILD} == 0
+!define TARGET_DIR "$LOCALAPPDATA\${PROJECT_NAME}\${VERSION_STRING}"
+# signals successful extraction
+!define DUMMY_FILE "${TARGET_DIR}\.extracted"
+!else
+!error invalid value for DEVELOPMENT_BUILD
+!endif
+!endif
+!define EXE_FILE "${TARGET_DIR}\bin\${PROJECT_NAME}.exe"
+
+!include "LogicLib.nsh"
+!include "FileFunc.nsh"
+
+# including MUI.nsh would cause a warning, so we have to use numbers :(
+# these are LCIDs (Language Code Identifiers)
+LangString BannerText 1033 "Extracting, please wait..."
+LangString BannerText 1031 "Extrahiere, bitte warten..."
+LangString ErrorText 1033 "An error occurred!"
+LangString ErrorText 1031 "Ein Fehler ist aufgetreten!"
+
+Var needExtract
+
+Function .onInit
+	SetSilent silent
+	StrCpy $needExtract 1
+
+!if ${DEVELOPMENT_BUILD} == 0
+	# the *.* checks if a directory exists
+	${If} ${FileExists} "${EXE_FILE}"
+	${AndIf} ${FileExists} "${TARGET_DIR}\builtin\*.*"
+	${AndIf} ${FileExists} "${TARGET_DIR}\client\*.*"
+	${AndIf} ${FileExists} "${TARGET_DIR}\textures\*.*"
+	${AndIf} ${FileExists} "${DUMMY_FILE}"
+		StrCpy $needExtract 0
+	${EndIf}
+!endif
+FunctionEnd
+
+Section
+	ClearErrors
+	${If} $needExtract == 1
+		Banner::show /NOUNLOAD "$(BannerText)"
+
+!if ${DEVELOPMENT_BUILD} == 1
+		RMDir /r "${TARGET_DIR}"
+!endif
+		CreateDirectory "${TARGET_DIR}"
+		SetOutPath "${TARGET_DIR}"
+		File /r /x *.nsi /x *.nsh "${INPATH}\*.*"
+
+		${If} ${Errors}
+			MessageBox MB_ICONSTOP "$(ErrorText)"
+			Abort
+		${EndIf}
+
+!if ${DEVELOPMENT_BUILD} == 0
+		FileOpen $0 "${DUMMY_FILE}" w
+		FileClose $0
+		SetFileAttributes "${DUMMY_FILE}" HIDDEN
+!endif
+
+		Banner::destroy
+	${EndIf}
+
+!if ${DEVELOPMENT_BUILD} == 0
+	# replace shortcut with last-launched version regardless of if we had to extract
+	# (last param is the description text)
+	CreateShortcut /NoWorkingDir "$DESKTOP\${PROJECT_NAME_C}.lnk" "${EXE_FILE}" \
+		"" "" "" "" "" "${PROJECT_NAME_C} ${VERSION_STRING}"
+	CreateShortcut /NoWorkingDir "$SMPROGRAMS\${PROJECT_NAME_C}.lnk" "${EXE_FILE}" \
+		"" "" "" "" "" "${PROJECT_NAME_C} ${VERSION_STRING}"
+!endif
+
+	Exec '"${EXE_FILE}"'
+SectionEnd

util/buildbot/buildwin32.sh

@@ -2,11 +2,12 @@
 set -e
 
 topdir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-if [ $# -ne 1 ]; then
+if [ $# -lt 1 ]; then
-	echo "Usage: $0 <build directory>"
+	echo "Usage: $0 <build directory> [extra cmake args...]"
 	exit 1
 fi
 builddir=$1
+shift
 mkdir -p $builddir
 builddir="$( cd "$builddir" && pwd )"
 libdir=$builddir/libs
@@ -63,6 +64,7 @@ cmake_args=(
 	-DENABLE_LEVELDB=1
 )
 add_cmake_libs
+cmake_args+=("$@")
 cmake -S $sourcedir -B build "${cmake_args[@]}"
 
 cmake --build build -j$(nproc)

util/buildbot/buildwin64.sh

@@ -2,11 +2,12 @@
 set -e
 
 topdir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-if [ $# -ne 1 ]; then
+if [ $# -lt 1 ]; then
-	echo "Usage: $0 <build directory>"
+	echo "Usage: $0 <build directory> [extra cmake args...]"
 	exit 1
 fi
 builddir=$1
+shift
 mkdir -p $builddir
 builddir="$( cd "$builddir" && pwd )"
 libdir=$builddir/libs
@@ -44,7 +45,7 @@ download "$libhost/llvm/libjpeg-$libjpeg_version-win64.zip"
 download "$libhost/llvm/libpng-$libpng_version-win64.zip"
 download "$libhost/llvm/sdl2-$sdl2_version-win64.zip"
 
-# Set source dir, downloading Minetest as needed
+# Set source dir, downloading Luanti as needed
 get_sources
 
 # Build the thing
@@ -63,6 +64,7 @@ cmake_args=(
 	-DENABLE_LEVELDB=1
 )
 add_cmake_libs
+cmake_args+=("$@")
 cmake -S $sourcedir -B build "${cmake_args[@]}"
 
 cmake --build build -j$(nproc)

util/ci/common.sh

@@ -32,6 +32,19 @@ install_linux_deps() {
 	fi
 }
 
+# Linux -> win32 cross-compiling only
+install_mingw_deps() {
+	local bits=$1
+	local nsis=$2
+
+	local pkgs=(gettext wine wine$bits)
+	[[ "$nsis" == "true" ]] && pkgs+=(nsis ccache)
+
+	sudo dpkg --add-architecture i386
+	sudo apt-get update
+	sudo apt-get install -y --no-install-recommends "${pkgs[@]}"
+}
+
 # macOS build only
 install_macos_brew_deps() {
 	# Uninstall the bundled cmake, it is outdated, and brew does not want to install the newest version with this one present since they are from different taps.
@@ -50,8 +63,8 @@ install_macos_brew_deps() {
 }
 
 install_macos_precompiled_deps() {
-	osver=$1
+	local osver=$1
-	arch=$2
+	local arch=$2
 
 	local pkgs=(
 		cmake wget