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## # vcpkg_extract_source_archive
##
## Extract an archive into the source directory.
##
## ## Usage
## ```cmake
## vcpkg_extract_source_archive(
## <${ARCHIVE}> [<${TARGET_DIRECTORY}>]
## )
## ```
## ## Parameters
## ### ARCHIVE
## The full path to the archive to be extracted.
##
## This is usually obtained from calling [`vcpkg_download_distfile`](vcpkg_download_distfile.md).
##
## ### TARGET_DIRECTORY
## If specified, the archive will be extracted into the target directory instead of `${CURRENT_BUILDTREES_DIR}\src\`.
##
## This can be used to mimic git submodules, by extracting into a subdirectory of another archive.
##
## ## Notes
## This command will also create a tracking file named <FILENAME>.extracted in the TARGET_DIRECTORY. This file, when present, will suppress the extraction of the archive.
##
## ## Examples
##
## * [libraw](https://github.com/Microsoft/vcpkg/blob/master/ports/libraw/portfile.cmake)
## * [protobuf](https://github.com/Microsoft/vcpkg/blob/master/ports/protobuf/portfile.cmake)
## * [msgpack](https://github.com/Microsoft/vcpkg/blob/master/ports/msgpack/portfile.cmake)
include(vcpkg_execute_required_process)
function(vcpkg_extract_source_archive ARCHIVE)
if(NOT ARGC EQUAL 2)
set(WORKING_DIRECTORY "${CURRENT_BUILDTREES_DIR}/src")
else()
set(WORKING_DIRECTORY ${ARGV1})
endif()
get_filename_component(ARCHIVE_FILENAME "${ARCHIVE}" NAME)
if(NOT EXISTS ${WORKING_DIRECTORY}/${ARCHIVE_FILENAME}.extracted)
message(STATUS "Extracting source ${ARCHIVE}")
file(MAKE_DIRECTORY ${WORKING_DIRECTORY})
vcpkg_execute_required_process(
COMMAND ${CMAKE_COMMAND} -E tar xjf ${ARCHIVE}
WORKING_DIRECTORY ${WORKING_DIRECTORY}
LOGNAME extract
)
file(WRITE ${WORKING_DIRECTORY}/${ARCHIVE_FILENAME}.extracted)
endif()
endfunction()
function(vcpkg_extract_source_archive_ex)
cmake_parse_arguments(_vesae "NO_REMOVE_ONE_LEVEL" "OUT_SOURCE_PATH;ARCHIVE;REF;WORKING_DIRECTORY" "PATCHES" ${ARGN})
if(NOT _vesae_ARCHIVE)
message(FATAL_ERROR "Must specify ARCHIVE parameter to vcpkg_extract_source_archive_ex()")
endif()
if(NOT DEFINED _vesae_OUT_SOURCE_PATH)
message(FATAL_ERROR "Must specify OUT_SOURCE_PATH parameter to vcpkg_extract_source_archive_ex()")
endif()
if(NOT DEFINED _vesae_WORKING_DIRECTORY)
set(_vesae_WORKING_DIRECTORY ${CURRENT_BUILDTREES_DIR}/src)
endif()
if(NOT DEFINED _vesae_REF)
get_filename_component(_vesae_REF ${_vesae_ARCHIVE} NAME_WE)
endif()
string(REPLACE "/" "-" SANITIZED_REF "${_vesae_REF}")
# Take the last 10 chars of the REF
set(REF_MAX_LENGTH 10)
string(LENGTH ${SANITIZED_REF} REF_LENGTH)
math(EXPR FROM_REF ${REF_LENGTH}-${REF_MAX_LENGTH})
if(FROM_REF LESS 0)
set(FROM_REF 0)
endif()
string(SUBSTRING ${SANITIZED_REF} ${FROM_REF} ${REF_LENGTH} SHORTENED_SANITIZED_REF)
# Hash the archive hash along with the patches. Take the first 10 chars of the hash
file(SHA512 ${_vesae_ARCHIVE} PATCHSET_HASH)
foreach(PATCH IN LISTS _vesae_PATCHES)
get_filename_component(ABSOLUTE_PATCH "${PATCH}" ABSOLUTE BASE_DIR "${CURRENT_PORT_DIR}")
file(SHA512 ${ABSOLUTE_PATCH} CURRENT_HASH)
string(APPEND PATCHSET_HASH ${CURRENT_HASH})
endforeach()
string(SHA512 PATCHSET_HASH ${PATCHSET_HASH})
string(SUBSTRING ${PATCHSET_HASH} 0 10 PATCHSET_HASH)
set(SOURCE_PATH "${_vesae_WORKING_DIRECTORY}/${SHORTENED_SANITIZED_REF}-${PATCHSET_HASH}")
if(NOT EXISTS ${SOURCE_PATH})
set(TEMP_DIR "${_vesae_WORKING_DIRECTORY}/TEMP")
file(REMOVE_RECURSE ${TEMP_DIR})
vcpkg_extract_source_archive("${_vesae_ARCHIVE}" "${TEMP_DIR}")
if(_vesae_NO_REMOVE_ONE_LEVEL)
set(TEMP_SOURCE_PATH ${TEMP_DIR})
else()
file(GLOB _ARCHIVE_FILES "${TEMP_DIR}/*")
list(LENGTH _ARCHIVE_FILES _NUM_ARCHIVE_FILES)
set(TEMP_SOURCE_PATH)
foreach(dir IN LISTS _ARCHIVE_FILES)
if (IS_DIRECTORY ${dir})
set(TEMP_SOURCE_PATH "${dir}")
break()
endif()
endforeach()
if(NOT _NUM_ARCHIVE_FILES EQUAL 2 OR NOT TEMP_SOURCE_PATH)
message(FATAL_ERROR "Could not unwrap top level directory from archive. Pass NO_REMOVE_ONE_LEVEL to disable this.")
endif()
endif()
vcpkg_apply_patches(
SOURCE_PATH ${TEMP_SOURCE_PATH}
PATCHES ${_vesae_PATCHES}
)
file(RENAME ${TEMP_SOURCE_PATH} ${SOURCE_PATH})
file(REMOVE_RECURSE ${TEMP_DIR})
endif()
set(${_vesae_OUT_SOURCE_PATH} "${SOURCE_PATH}" PARENT_SCOPE)
message(STATUS "Using source at ${SOURCE_PATH}")
return()
endfunction()
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