vcpkg/scripts/cmake/vcpkg_minimum_required.cmake
Robert Schumacher 7d2449c346
[docs] Delete embedded documentation in favor of docs/ (#25096)
* [docs] Delete embedded documentation in favor of docs/

Drive-by for the helper ports:
1. "documentation": "https://vcpkg.io/en/docs/README.html"
2. "license": "MIT"
3. Use `include_guard(GLOBAL)` in all script files
4. Make sure any persistent variables are saved to the cache

* [docs] Restore empty regenerate.ps1 to satisfy Azure Pipelines

* [docs] PR comments
2022-06-07 16:26:51 -07:00

36 lines
1.4 KiB
CMake

function(vcpkg_minimum_required)
cmake_parse_arguments(PARSE_ARGV 0 arg "" "VERSION" "")
if(NOT DEFINED VCPKG_BASE_VERSION)
message(FATAL_ERROR "Your vcpkg executable is outdated and is not compatible with the current CMake scripts.
Please re-acquire vcpkg by running bootstrap-vcpkg."
)
endif()
if(NOT DEFINED arg_VERSION)
message(FATAL_ERROR "VERSION must be specified")
endif()
set(vcpkg_date_regex "^[12][0-9][0-9][0-9]-[01][0-9]-[0-3][0-9]$")
if(NOT "${VCPKG_BASE_VERSION}" MATCHES "${vcpkg_date_regex}")
message(FATAL_ERROR
"vcpkg internal failure; VCPKG_BASE_VERSION (${VCPKG_BASE_VERSION}) was not a valid date."
)
endif()
if(NOT "${arg_VERSION}" MATCHES "${vcpkg_date_regex}")
message(FATAL_ERROR
"VERSION (${arg_VERSION}) was not a valid date - expected something of the form 'YYYY-MM-DD'"
)
endif()
string(REPLACE "-" "." VCPKG_BASE_VERSION_as_dotted "${VCPKG_BASE_VERSION}")
string(REPLACE "-" "." arg_VERSION_as_dotted "${arg_VERSION}")
if("${VCPKG_BASE_VERSION_as_dotted}" VERSION_LESS "${arg_VERSION_as_dotted}")
message(FATAL_ERROR
"Your vcpkg executable is from ${VCPKG_BASE_VERSION} which is older than required by the caller "
"of vcpkg_minimum_required(VERSION ${arg_VERSION}). "
"Please re-acquire vcpkg by running bootstrap-vcpkg."
)
endif()
endfunction()