You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
4.9 KiB
113 lines
4.9 KiB
include_guard()
|
|
|
|
# Disable cmkr if no cmake.toml file is found
|
|
if(NOT EXISTS ${CMAKE_CURRENT_LIST_DIR}/cmake.toml)
|
|
message(STATUS "[cmkr] Not found: ${CMAKE_CURRENT_LIST_DIR}/cmake.toml")
|
|
macro(cmkr)
|
|
endmacro()
|
|
return()
|
|
endif()
|
|
|
|
# Add a build-time dependency on the contents of cmake.toml to regenerate the CMakeLists.txt when modified
|
|
configure_file(${CMAKE_CURRENT_LIST_DIR}/cmake.toml ${CMAKE_CURRENT_BINARY_DIR}/cmake.toml COPYONLY)
|
|
|
|
# Helper macro to execute a process (COMMAND_ERROR_IS_FATAL ANY is 3.19 and higher)
|
|
macro(cmkr_exec)
|
|
execute_process(COMMAND ${ARGV} RESULT_VARIABLE CMKR_EXEC_RESULT)
|
|
if(NOT CMKR_EXEC_RESULT EQUAL 0)
|
|
message(FATAL_ERROR "cmkr_exec(${ARGV}) failed (exit code ${CMKR_EXEC_RESULT})")
|
|
endif()
|
|
endmacro()
|
|
|
|
# Windows-specific hack (CMAKE_EXECUTABLE_PREFIX is not set at the moment)
|
|
if(WIN32)
|
|
set(CMKR_EXECUTABLE_NAME "cmkr.exe")
|
|
else()
|
|
set(CMKR_EXECUTABLE_NAME "cmkr")
|
|
endif()
|
|
|
|
# Use cached cmkr if found
|
|
if(DEFINED CACHE{CMKR_EXECUTABLE} AND EXISTS ${CMKR_EXECUTABLE})
|
|
message(VERBOSE "[cmkr] Found cmkr: '${CMKR_EXECUTABLE}'")
|
|
else()
|
|
if(DEFINED CACHE{CMKR_EXECUTABLE})
|
|
message(VERBOSE "[cmkr] '${CMKR_EXECUTABLE}' not found")
|
|
endif()
|
|
set(CMKR_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/_cmkr)
|
|
set(CMKR_EXECUTABLE ${CMAKE_CURRENT_BINARY_DIR}/_cmkr/bin/${CMKR_EXECUTABLE_NAME} CACHE INTERNAL "Full path to cmkr executable")
|
|
if(NOT EXISTS ${CMKR_EXECUTABLE})
|
|
message(VERBOSE "[cmkr] Bootstrapping '${CMKR_EXECUTABLE}'")
|
|
message(STATUS "[cmkr] Fetching cmkr...")
|
|
if(EXISTS ${CMKR_DIRECTORY})
|
|
cmkr_exec(${CMAKE_COMMAND} -E rm -rf ${CMKR_DIRECTORY})
|
|
endif()
|
|
find_package(Git QUIET REQUIRED)
|
|
set(CMKR_REPO "https://github.com/moalyousef/cmkr")
|
|
cmkr_exec(${GIT_EXECUTABLE} clone ${CMKR_REPO} ${CMKR_DIRECTORY})
|
|
cmkr_exec(${CMAKE_COMMAND} --no-warn-unused-cli ${CMKR_DIRECTORY} -B${CMKR_DIRECTORY}/build -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=${CMKR_DIRECTORY})
|
|
cmkr_exec(${CMAKE_COMMAND} --build ${CMKR_DIRECTORY}/build --parallel --config Release)
|
|
cmkr_exec(${CMAKE_COMMAND} --install ${CMKR_DIRECTORY}/build --config Release --prefix ${CMKR_DIRECTORY} --component cmkr)
|
|
if(NOT EXISTS ${CMKR_EXECUTABLE})
|
|
message(FATAL_ERROR "[cmkr] Failed to bootstrap '${CMKR_EXECUTABLE}'")
|
|
endif()
|
|
cmkr_exec(${CMKR_EXECUTABLE} version OUTPUT_VARIABLE CMKR_VERSION)
|
|
string(STRIP ${CMKR_VERSION} CMKR_VERSION)
|
|
message(STATUS "[cmkr] Bootstrapped ${CMKR_EXECUTABLE}")
|
|
else()
|
|
message(VERBOSE "[cmkr] Found cmkr: '${CMKR_EXECUTABLE}'")
|
|
endif()
|
|
endif()
|
|
execute_process(COMMAND ${CMKR_EXECUTABLE} version
|
|
OUTPUT_VARIABLE CMKR_VERSION
|
|
RESULT_VARIABLE CMKR_EXEC_RESULT
|
|
)
|
|
if(NOT CMKR_EXEC_RESULT EQUAL 0)
|
|
unset(CMKR_EXECUTABLE CACHE)
|
|
message(FATAL_ERROR "[cmkr] Failed to get version, try clearing the cache and rebuilding")
|
|
endif()
|
|
string(STRIP ${CMKR_VERSION} CMKR_VERSION)
|
|
message(STATUS "[cmkr] Using ${CMKR_VERSION}")
|
|
|
|
# This is the macro that contains black magic
|
|
macro(cmkr)
|
|
# When this macro is called from the generated file, fake some internal CMake variables
|
|
get_source_file_property(CMKR_CURRENT_LIST_FILE ${CMAKE_CURRENT_LIST_FILE} CMKR_CURRENT_LIST_FILE)
|
|
if(CMKR_CURRENT_LIST_FILE)
|
|
set(CMAKE_CURRENT_LIST_FILE ${CMKR_CURRENT_LIST_FILE})
|
|
get_filename_component(CMAKE_CURRENT_LIST_DIR ${CMAKE_CURRENT_LIST_FILE} DIRECTORY)
|
|
endif()
|
|
|
|
# File-based include guard (include_guard is not documented to work)
|
|
get_source_file_property(CMKR_INCLUDE_GUARD ${CMAKE_CURRENT_LIST_FILE} CMKR_INCLUDE_GUARD)
|
|
if(NOT CMKR_INCLUDE_GUARD)
|
|
set_source_files_properties(${CMAKE_CURRENT_LIST_FILE} PROPERTIES CMKR_INCLUDE_GUARD TRUE)
|
|
|
|
# Generate CMakeLists.txt
|
|
cmkr_exec(${CMKR_EXECUTABLE} gen -y
|
|
WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
|
|
OUTPUT_VARIABLE CMKR_GEN_OUTPUT
|
|
)
|
|
string(STRIP ${CMKR_GEN_OUTPUT} CMKR_GEN_OUTPUT)
|
|
message(STATUS "[cmkr] ${CMKR_GEN_OUTPUT}")
|
|
|
|
# Copy the now-generated CMakeLists.txt to CMakerLists.txt
|
|
# This is done because you cannot include() a file you are currently in
|
|
set(CMKR_TEMP_FILE ${CMAKE_CURRENT_LIST_DIR}/CMakerLists.txt)
|
|
configure_file(CMakeLists.txt ${CMKR_TEMP_FILE} COPYONLY)
|
|
|
|
# Add the macro required for the hack at the start of the cmkr macro
|
|
set_source_files_properties(${CMKR_TEMP_FILE} PROPERTIES
|
|
CMKR_CURRENT_LIST_FILE ${CMAKE_CURRENT_LIST_FILE}
|
|
)
|
|
|
|
# 'Execute' the newly-generated CMakeLists.txt
|
|
include(${CMKR_TEMP_FILE})
|
|
|
|
# Delete the generated file
|
|
file(REMOVE ${CMKR_TEMP_FILE})
|
|
|
|
# Do not execute the rest of the original CMakeLists.txt
|
|
return()
|
|
endif()
|
|
endmacro()
|