vcpkg/scripts/cmake/vcpkg_minimum_required.cmake
nicole mazzuca a5a70c7c3e
[vcpkg_minimum_required] fix, add unit tests (#19257)
* fix vcpkg_minimum_required

drive-by scripts audit

* initial unit tests

* finish unit tests
2021-07-30 12:57:07 -07:00

51 lines
1.7 KiB
CMake

#[===[.md:
# vcpkg_minimum_required
Asserts that the version of the vcpkg program being used to build a port is later than the supplied date, inclusive.
## Usage
```cmake
vcpkg_minimum_required(VERSION 2021-01-13)
```
## Parameters
### VERSION
The date-version to check against.
#]===]
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message(FATAL_ERROR "Your vcpkg executable is outdated and is not compatible with the current CMake scripts.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()