SDL/cmake/android/FindSdlAndroidBuildTools.cmake

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#[=======================================================================[
FindSdlAndroidBuildTools
----------------------
Locate the Android build tools directory.
Imported targets
^^^^^^^^^^^^^^^^
This find module defines the following :prop_tgt:`IMPORTED` target(s):
<none>
Result variables
^^^^^^^^^^^^^^^^
This module will set the following variables in your project:
`` SdlAndroidBuildTools_FOUND
if false, no Android build tools have been found
`` SDL_ANDROID_BUILD_TOOLS_ROOT
path of the Android build tools root directory if found
`` SDL_ANDROID_BUILD_TOOLS_VERSION
the human-readable string containing the android build tools version if found
Cache variables
^^^^^^^^^^^^^^^
These variables may optionally be set to help this module find the correct files:
``SDL_ANDROID_BUILD_TOOLS_ROOT``
path of the Android build tools root directory
Variables for locating Android platform
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This module responds to the flags:
``SDL_ANDROID_HOME
First, this module will look for platforms in this CMake variable.
``ANDROID_HOME
If no platform was found in `SDL_ANDROID_HOME`, then try `ANDROID_HOME`.
``$ENV{ANDROID_HOME}
If no platform was found in neither `SDL_ANDROID_HOME` or `ANDROID_HOME`, then try `ANDROID_HOME}`
#]=======================================================================]
cmake_minimum_required(VERSION 3.7)
if(NOT PROJECT_NAME MATCHES "^SDL.*")
message(WARNING "This module is internal to SDL and is currently not supported.")
endif()
function(_sdl_is_valid_android_build_tools_root RESULT VERSION BUILD_TOOLS_ROOT)
set(result TRUE)
set(version -1)
string(REGEX MATCH "/([0-9.]+)$" root_match "${BUILD_TOOLS_ROOT}")
if(root_match
AND EXISTS "${BUILD_TOOLS_ROOT}/aapt2"
AND EXISTS "${BUILD_TOOLS_ROOT}/apksigner"
AND EXISTS "${BUILD_TOOLS_ROOT}/d8"
AND EXISTS "${BUILD_TOOLS_ROOT}/zipalign")
set(result "${BUILD_TOOLS_ROOT}")
set(version "${CMAKE_MATCH_1}")
endif()
set(${RESULT} ${result} PARENT_SCOPE)
set(${VERSION} ${version} PARENT_SCOPE)
endfunction()
function(_find_sdl_android_build_tools_root ROOT)
cmake_parse_arguments(fsabtr "" "" "" ${ARGN})
set(homes ${SDL_ANDROID_HOME} ${ANDROID_HOME} $ENV{ANDROID_HOME})
set(root ${ROOT}-NOTFOUND)
foreach(home IN LISTS homes)
if(NOT IS_DIRECTORY "${home}")
continue()
endif()
file(GLOB build_tools_roots LIST_DIRECTORIES true "${home}/build-tools/*")
set(max_build_tools_version -1)
set(max_build_tools_root "")
foreach(build_tools_root IN LISTS build_tools_roots)
_sdl_is_valid_android_build_tools_root(is_valid build_tools_version "${build_tools_root}")
if(is_valid AND build_tools_version GREATER max_build_tools_version)
set(max_build_tools_version "${build_tools_version}")
set(max_build_tools_root "${build_tools_root}")
endif()
endforeach()
if(max_build_tools_version GREATER -1)
set(root ${max_build_tools_root})
break()
endif()
endforeach()
set(${ROOT} ${root} PARENT_SCOPE)
endfunction()
if(NOT DEFINED SDL_ANDROID_BUILD_TOOLS_ROOT)
_find_sdl_android_build_tools_root(SDL_ANDROID_BUILD_TOOLS_ROOT)
set(SDL_ANDROID_BUILD_TOOLS_ROOT "${SDL_ANDROID_BUILD_TOOLS_ROOT}" CACHE PATH "Path of Android build tools")
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(SdlAndroidBuildTools
VERSION_VAR SDL_ANDROID_BUILD_TOOLS_VERSION
REQUIRED_VARS SDL_ANDROID_BUILD_TOOLS_ROOT
)