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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...>
## SHA512 <abcdef123...>
## [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.
##
## ### SHA512
## The SHA512 hash that should match the archive form of the commit.
##
## This is most easily determined by first setting it to `0`, then trying to build the port. The error message will contain the full hash, which can be copied back into the portfile.
##
## ### REF
## A stable git commit-ish (ideally a tag or commit) that will not change contents. **This should not be a branch.**
##
## For repositories without official releases, this can be set to the full commit id of the current latest master.
##
## ### 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`, `SHA512`, 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 SHA512)
set(multipleValuesArgs PATCHES)
cmake_parse_arguments(_vdud "" "${oneValueArgs}" "${multipleValuesArgs}" ${ARGN})
if(NOT DEFINED _vdud_OUT_SOURCE_PATH)
message(FATAL_ERROR "OUT_SOURCE_PATH must be specified.")
endif()
if(NOT DEFINED _vdud_URL)
message(FATAL_ERROR "The git url must be specified")
endif()
if(NOT DEFINED _vdud_REF)
message(FATAL_ERROR "The git ref must be specified.")
endif()
if(NOT DEFINED _vdud_SHA512)
message(FATAL_ERROR "vcpkg_from_git requires a SHA512 argument. If you do not know the SHA512, add it as 'SHA512 0' and re-run this command.")
endif()
# using .tar.gz instead of .zip because the hash of the latter is affected by timezone.
string(REPLACE "/" "-" SANITIZED_REF "${_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}")
function(test_hash FILE_PATH FILE_KIND CUSTOM_ERROR_ADVICE)
file(SHA512 ${FILE_PATH} FILE_HASH)
if(NOT FILE_HASH STREQUAL _vdud_SHA512)
message(FATAL_ERROR
"\nFile does not have expected hash:\n"
" File path: [ ${FILE_PATH} ]\n"
" Expected hash: [ ${_vdud_SHA512} ]\n"
" Actual hash: [ ${FILE_HASH} ]\n"
"${CUSTOM_ERROR_ADVICE}\n")
endif()
endfunction()
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(
COMMAND ${GIT} init git-tmp
WORKING_DIRECTORY ${DOWNLOADS}
LOGNAME git-init
)
vcpkg_execute_required_process(
COMMAND ${GIT} fetch ${_vdud_URL} ${_vdud_REF} --depth 1 -n
WORKING_DIRECTORY ${DOWNLOADS}/git-tmp
LOGNAME git-fetch
)
file(MAKE_DIRECTORY "${DOWNLOADS}/temp")
vcpkg_execute_required_process(
COMMAND ${GIT} archive FETCH_HEAD -o "${TEMP_ARCHIVE}"
WORKING_DIRECTORY ${DOWNLOADS}/git-tmp
LOGNAME git-archive
)
test_hash("${TEMP_ARCHIVE}" "downloaded repo" "")
get_filename_component(downloaded_file_dir "${ARCHIVE}" DIRECTORY)
file(MAKE_DIRECTORY "${downloaded_file_dir}")
file(RENAME "${TEMP_ARCHIVE}" "${ARCHIVE}")
else()
message(STATUS "Using cached ${ARCHIVE}")
test_hash("${ARCHIVE}" "cached file" "Please delete the file and retry if this file should be downloaded again.")
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()
|
