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## # vcpkg_from_git
##
## Download and extract a project from git
##
## ## Usage:
## ```cmake
## vcpkg_from_git(
## OUT_SOURCE_PATH <SOURCE_PATH>
## URL <https://android.googlesource.com/platform/external/fdlibm>
## REF <59f7335e4d...>
## [PATCHES <patch1.patch> <patch2.patch>...]
## )
## ```
##
## ## Parameters:
## ### OUT_SOURCE_PATH
## Specifies the out-variable that will contain the extracted location.
##
## This should be set to `SOURCE_PATH` by convention.
##
## ### URL
## The url of the git repository.
##
## ### REF
## The git sha of the commit to download.
##
## ### PATCHES
## A list of patches to be applied to the extracted sources.
##
## Relative paths are based on the port directory.
##
## ## Notes:
## `OUT_SOURCE_PATH`, `REF`, and `URL` must be specified.
##
## ## Examples:
##
## * [fdlibm](https://github.com/Microsoft/vcpkg/blob/master/ports/fdlibm/portfile.cmake)
function(vcpkg_from_git)
set(oneValueArgs OUT_SOURCE_PATH URL REF)
set(multipleValuesArgs PATCHES)
cmake_parse_arguments(_vdud "" "${oneValueArgs}" "${multipleValuesArgs}" ${ARGN})
if(NOT DEFINED _vdud_OUT_SOURCE_PATH)
message(FATAL_ERROR "OUT_SOURCE_PATH must be specified.")
endif()
if(NOT DEFINED _vdud_URL)
message(FATAL_ERROR "The git url must be specified")
endif()
if(NOT DEFINED _vdud_REF)
message(FATAL_ERROR "The git ref must be specified.")
endif()
# using .tar.gz instead of .zip because the hash of the latter is affected by timezone.
string(REPLACE "/" "-" SANITIZED_REF "${_vdud_REF}")
set(TEMP_ARCHIVE "${DOWNLOADS}/temp/${PORT}-${SANITIZED_REF}.tar.gz")
set(ARCHIVE "${DOWNLOADS}/${PORT}-${SANITIZED_REF}.tar.gz")
set(TEMP_SOURCE_PATH "${CURRENT_BUILDTREES_DIR}/src/${SANITIZED_REF}")
if(NOT EXISTS "${ARCHIVE}")
if(_VCPKG_NO_DOWNLOADS)
message(FATAL_ERROR "Downloads are disabled, but '${ARCHIVE}' does not exist.")
endif()
message(STATUS "Fetching ${_vdud_URL}...")
find_program(GIT NAMES git git.cmd)
# Note: git init is safe to run multiple times
vcpkg_execute_required_process(
ALLOW_IN_DOWNLOAD_MODE
COMMAND ${GIT} init git-tmp
WORKING_DIRECTORY ${DOWNLOADS}
LOGNAME git-init-${TARGET_TRIPLET}
)
vcpkg_execute_required_process(
ALLOW_IN_DOWNLOAD_MODE
COMMAND ${GIT} fetch ${_vdud_URL} ${_vdud_REF} --depth 1 -n
WORKING_DIRECTORY ${DOWNLOADS}/git-tmp
LOGNAME git-fetch-${TARGET_TRIPLET}
)
_execute_process(
COMMAND ${GIT} rev-parse FETCH_HEAD
OUTPUT_VARIABLE REV_PARSE_HEAD
ERROR_VARIABLE REV_PARSE_HEAD
RESULT_VARIABLE error_code
WORKING_DIRECTORY ${DOWNLOADS}/git-tmp
)
if(error_code)
message(FATAL_ERROR "unable to determine FETCH_HEAD after fetching git repository")
endif()
string(REGEX REPLACE "\n$" "" REV_PARSE_HEAD "${REV_PARSE_HEAD}")
if(NOT REV_PARSE_HEAD STREQUAL _vdud_REF)
message(FATAL_ERROR "REF (${_vdud_REF}) does not match FETCH_HEAD (${REV_PARSE_HEAD})")
endif()
file(MAKE_DIRECTORY "${DOWNLOADS}/temp")
vcpkg_execute_required_process(
ALLOW_IN_DOWNLOAD_MODE
COMMAND ${GIT} archive FETCH_HEAD -o "${TEMP_ARCHIVE}"
WORKING_DIRECTORY ${DOWNLOADS}/git-tmp
LOGNAME git-archive
)
get_filename_component(downloaded_file_dir "${ARCHIVE}" DIRECTORY)
file(MAKE_DIRECTORY "${downloaded_file_dir}")
file(RENAME "${TEMP_ARCHIVE}" "${ARCHIVE}")
else()
message(STATUS "Using cached ${ARCHIVE}")
endif()
vcpkg_extract_source_archive_ex(
OUT_SOURCE_PATH SOURCE_PATH
ARCHIVE "${ARCHIVE}"
REF "${SANITIZED_REF}"
PATCHES ${_vdud_PATCHES}
NO_REMOVE_ONE_LEVEL
)
set(${_vdud_OUT_SOURCE_PATH} "${SOURCE_PATH}" PARENT_SCOPE)
endfunction()
|
