Make it possible to configure a CMake build with the slint-compiler t…

…o be downloaded at app configure time
slint-ui · Aug 28, 2024 · 3133b4c · 3133b4c
1 parent 45c639a
commit 3133b4c
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Showing 3 changed files with 42 additions and 4 deletions.
diff --git a/.github/workflows/upgrade_version.yaml b/.github/workflows/upgrade_version.yaml
@@ -24,6 +24,7 @@ jobs:
 
                   # Update the version in CmakeLists.txt
                   sed -i 's/ VERSION [0-9]*\.[0-9]*\.[0-9]*$/ VERSION ${{ github.event.inputs.new_version }}/' api/cpp/CMakeLists.txt
+                  sed -i 's/SLINT_VERSION [0-9]*\.[0-9]*\.[0-9]*$/SLINT_VERSION ${{ github.event.inputs.new_version }}/' api/cpp/CMakeLists.txt
                   sed -i "s/(CPACK_PACKAGE_VERSION_MAJOR [0-9]*)/(CPACK_PACKAGE_VERSION_MAJOR `echo ${{ github.event.inputs.new_version }} | sed "s/\([0-9]*\)\.\([0-9]*\).\([0-9]*\)/\1/"`)/" api/cpp/CMakeLists.txt
                   sed -i "s/(CPACK_PACKAGE_VERSION_MINOR [0-9]*)/(CPACK_PACKAGE_VERSION_MINOR `echo ${{ github.event.inputs.new_version }} | sed "s/\([0-9]*\)\.\([0-9]*\).\([0-9]*\)/\2/"`)/" api/cpp/CMakeLists.txt
                   sed -i "s/(CPACK_PACKAGE_VERSION_PATCH [0-9]*)/(CPACK_PACKAGE_VERSION_PATCH `echo ${{ github.event.inputs.new_version }} | sed "s/\([0-9]*\)\.\([0-9]*\).\([0-9]*\)/\3/"`)/" api/cpp/CMakeLists.txt

diff --git a/api/cpp/CMakeLists.txt b/api/cpp/CMakeLists.txt
@@ -26,7 +26,7 @@ add_feature_info(SLINT_FEATURE_COMPILER SLINT_FEATURE_COMPILER "Enable support f
 option(SLINT_BUILD_RUNTIME "Actually build the Slint runtime libraries (Disable that to only build the compiler)" ON)
 add_feature_info(SLINT_BUILD_RUNTIME SLINT_BUILD_RUNTIME "Actually build the Slint runtime libraries (Disable that to only build the compiler)")
 
-set(SLINT_COMPILER "" CACHE FILEPATH "Path to the slint-compiler executable. When unset, it the compiler will be build as part of the build process")
+set(SLINT_COMPILER "" CACHE STRING "Path to the slint-compiler executable. When unset, it the compiler will be build as part of the build process. When set to 'download', the compiler will be downloaded from GitHub.")
 set(SLINT_LIBRARY_CARGO_FLAGS "" CACHE STRING
     "Flags to pass to cargo when building the Slint runtime library")
 
@@ -431,8 +431,12 @@ if(SLINT_BUILD_RUNTIME)
         endforeach()
 
         get_property(_SLINT_STYLE GLOBAL PROPERTY SLINT_STYLE)
-        get_target_property(_slint_compiler_location slint-compiler IMPORTED_LOCATION)
-        cmake_path(GET _slint_compiler_location FILENAME SLINT_COMPILER_FILE_NAME)
+        if (TARGET slint-compiler)
+            get_target_property(_slint_compiler_location slint-compiler IMPORTED_LOCATION)
+            cmake_path(GET _slint_compiler_location FILENAME SLINT_COMPILER_FILE_NAME)
+        endif()
+
+        set(SLINT_VERSION 1.8.0)
 
         configure_package_config_file("cmake/SlintConfig.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/lib/cmake/Slint/SlintConfig.cmake" INSTALL_DESTINATION lib/cmake/Slint)
     endfunction()

diff --git a/api/cpp/cmake/SlintConfig.cmake.in b/api/cpp/cmake/SlintConfig.cmake.in
@@ -14,8 +14,41 @@ endif()
 add_library(@slint_cpp_impl@ @cmake_lib_type@ IMPORTED)
 set_target_properties(@slint_cpp_impl@ PROPERTIES @SLINT_LIB_PROPERTIES@)
 
-set(SLINT_COMPILER @SLINT_COMPILER@ CACHE FILEPATH "Path to the slint-compiler executable")
+function(_slint_download_compiler_and_cache)
+    set(SLINT_GITHUB_RELEASE @SLINT_VERSION@ CACHE STRING "GitHub Release to use for Slint Binary Artifact Downloads")
+
+    if (CMAKE_HOST_WIN32)
+        set(compiler_exe_suffix ".exe")
+        set(platform_suffix "windows")
+    else()
+        set(platform_suffix "${CMAKE_HOST_SYSTEM_NAME}-${CMAKE_HOST_SYSTEM_PROCESSOR}")
+    endif()
+
+    set(prebuilt_archive_filename "slint-compiler-${platform_suffix}.tar.gz")
+    set(download_url "https://github.com/slint-ui/slint/releases/download/${SLINT_GITHUB_RELEASE}/${prebuilt_archive_filename}")
+    set(download_directory "${CMAKE_BINARY_DIR}/slint-prebuilt")
+    message(STATUS "Downloading pre-built Slint compiler binary from ${download_url}")
+    file(DOWNLOAD "${download_url}" "${download_directory}/${prebuilt_archive_filename}" STATUS download_status)
+    list(GET download_status 0 download_code)
+    if (NOT download_code EQUAL 0)
+        list(GET download_status 1 download_message)
+        message(FATAL_ERROR "Download of Slint compiler binary package failed: ${download_message}")
+    else()
+        file(ARCHIVE_EXTRACT INPUT "${download_directory}/${prebuilt_archive_filename}" DESTINATION "${download_directory}")
+        file(REMOVE "${download_directory}/${prebuilt_archive_filename}")
+
+        set(SLINT_COMPILER "${download_directory}/slint-compiler${compiler_exe_suffix}")
+        set(SLINT_COMPILER "${SLINT_COMPILER}" CACHE STRING "Path to the slint-compiler executable" FORCE)
+        set(SLINT_COMPILER "${SLINT_COMPILER}" PARENT_SCOPE)
+    endif()
+endfunction()
+
+set(SLINT_COMPILER @SLINT_COMPILER@ CACHE STRING "Path to the slint-compiler executable")
 if (SLINT_COMPILER)
+    if (SLINT_COMPILER STREQUAL "download")
+        _slint_download_compiler_and_cache(_)
+    endif()
+
     add_executable(Slint::slint-compiler IMPORTED GLOBAL)
     set_target_properties(Slint::slint-compiler PROPERTIES IMPORTED_LOCATION ${SLINT_COMPILER})
     include("${CMAKE_CURRENT_LIST_DIR}/SlintMacro.cmake")