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#.rst:
# FindPatch
# ----------
# Finds patch executable
# Windows platforms will download patch zip from mirrors if not found.
#
# This will define the following variables::
#
# PATCH_EXECUTABLE - patch executable
if(CMAKE_HOST_WIN32)
find_package(Git)
if(Git_FOUND)
get_filename_component(GIT_DIR ${GIT_EXECUTABLE} DIRECTORY)
endif()
find_program(PATCH_EXE NAMES patch.exe HINTS "${GIT_DIR}/.." PATH_SUFFIXES usr/bin)
else()
# Freebsd patch is insufficient (too old) look for gnu patch first
find_program(PATCH_EXE NAMES gpatch patch)
endif()
if(CMAKE_HOST_WIN32 AND NOT PATCH_EXE)
# Set mirror for potential patch binary download
if(NOT KODI_MIRROR)
set(KODI_MIRROR "http://mirrors.kodi.tv")
endif()
set(PATCH_ARCHIVE_NAME "patch-2.7.6-bin")
set(PATCH_ARCHIVE "${PATCH_ARCHIVE_NAME}.zip")
set(PATCH_URL "${KODI_MIRROR}/build-deps/win32/${PATCH_ARCHIVE}")
set(PATCH_DOWNLOAD ${TARBALL_DIR}/${PATCH_ARCHIVE})
# download the archive containing patch.exe
message(STATUS "Downloading patch utility from ${PATCH_URL}...")
file(DOWNLOAD "${PATCH_URL}" "${PATCH_DOWNLOAD}" STATUS PATCH_DL_STATUS LOG PATCH_LOG SHOW_PROGRESS)
list(GET PATCH_DL_STATUS 0 PATCH_RETCODE)
if(NOT PATCH_RETCODE EQUAL 0)
message(FATAL_ERROR "ERROR downloading ${PATCH_URL} - status: ${PATCH_DL_STATUS} log: ${PATCH_LOG}")
endif()
# CORE_BUILD_DIR may not exist as yet, so create just in case
if(NOT EXISTS ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR})
file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR})
endif()
# extract the archive containing patch.exe
execute_process(COMMAND ${CMAKE_COMMAND} -E tar xzvf ${PATCH_DOWNLOAD}
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR})
# make sure the extraction worked and that patch.exe is there
set(PATCH_PATH ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/${PATCH_ARCHIVE_NAME})
if(NOT EXISTS "${PATCH_PATH}/bin/patch.exe")
message(FATAL_ERROR "ERROR extracting patch utility from ${PATCH_PATH}")
endif()
# copy patch.exe into the output directory
file(INSTALL "${PATCH_PATH}/bin/patch.exe" DESTINATION ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/bin)
# copy patch depends
file(GLOB PATCH_BINARIES ${PATCH_PATH}/bin/*.dll)
if(NOT "${PATCH_BINARIES}" STREQUAL "")
file(INSTALL ${PATCH_BINARIES} DESTINATION ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/bin)
endif()
# make sure that cmake can find the copied patch.exe
find_program(PATCH_EXE NAMES patch.exe HINTS ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/bin REQUIRED)
endif()
include(FindPackageHandleStandardArgs)
set(FPHSA_NAME_MISMATCHED 1) # Suppress warnings, see https://cmake.org/cmake/help/v3.17/module/FindPackageHandleStandardArgs.html
find_package_handle_standard_args(PATCH REQUIRED_VARS PATCH_EXE)
unset(FPHSA_NAME_MISMATCHED)
if(PATCH_FOUND)
set(PATCH_EXECUTABLE "${PATCH_EXE}")
mark_as_advanced(PATCH_EXE)
endif()
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