vcpkg/scripts/cmake/z_vcpkg_function_arguments.cmake
nicole mazzuca 1bb5ea10a3
[scripts-audit] vcpkg.cmake (#16061)
* [vcpkg.cmake] modify to get in line with the audit

See PR #16055

This also (attempts to) allow vcpkg.cmake to run with cmake 3.0; we had
a VERSION_GREATER_EQUAL check, but that if keyword was added in cmake
3.7.

* s/target_name/package_name in find_package

* depend on z_vcpkg_function_arguments

instead of a custom macro
also, as a drive-by, switch to foreach(X IN LISTS ...)

* split the utility macros/functions out

additionally, move the options and settings to the top of the file

* move more options and settings to the top

* fix name of file

* fix ras code comments

* remove z_vcpkg_utilities due to export
* add cmake_policy(PUSH|POP)
* add VCPKG_INSTALLED_DIR input variable
* add .cmakestamp to vcpkg_installed

* fix osx ifs to use quotes

also, remove spaces between if and (, to keep style consistent
(mostly for ease of grepping...)

* fix bug fixed by #16193

* move z_vcpkg_add_fatal_error up

* fix RANGE for reals
2021-02-18 16:27:47 -08:00

54 lines
2.0 KiB
CMake

#[===[.md:
# z_vcpkg_function_arguments
**Only for internal use in vcpkg helpers. Behavior and arguments will change without notice.**
Get a list of the arguments which were passed in.
Unlike `ARGV`, which is simply the arguments joined with `;`,
so that `(A B)` is not distinguishable from `("A;B")`,
this macro gives `"A;B"` for the first argument list,
and `"A\;B"` for the second.
```cmake
z_vcpkg_function_arguments(<out-var> [<N>])
```
`z_vcpkg_function_arguments` gets the arguments between `ARGV<N>` and the last argument.
`<N>` defaults to `0`, so that all arguments are taken.
## Example:
```cmake
function(foo_replacement)
z_vcpkg_function_arguments(ARGS)
foo(${ARGS})
...
endfunction()
```
#]===]
# NOTE: this function definition is copied directly to scripts/buildsystems/vcpkg.cmake
# do not make changes here without making the same change there.
macro(z_vcpkg_function_arguments OUT_VAR)
if("${ARGC}" EQUAL 1)
set(z_vcpkg_function_arguments_FIRST_ARG 0)
elseif("${ARGC}" EQUAL 2)
set(z_vcpkg_function_arguments_FIRST_ARG "${ARGV1}")
else()
# vcpkg bug
message(FATAL_ERROR "z_vcpkg_function_arguments: invalid arguments (${ARGV})")
endif()
set("${OUT_VAR}")
# this allows us to get the value of the enclosing function's ARGC
set(z_vcpkg_function_arguments_ARGC_NAME "ARGC")
set(z_vcpkg_function_arguments_ARGC "${${z_vcpkg_function_arguments_ARGC_NAME}}")
math(EXPR z_vcpkg_function_arguments_LAST_ARG "${z_vcpkg_function_arguments_ARGC} - 1")
if(z_vcpkg_function_arguments_LAST_ARG GREATER_EQUAL z_vcpkg_function_arguments_FIRST_ARG)
foreach(z_vcpkg_function_arguments_N RANGE "${z_vcpkg_function_arguments_FIRST_ARG}" "${z_vcpkg_function_arguments_LAST_ARG}")
string(REPLACE ";" "\\;" z_vcpkg_function_arguments_ESCAPED_ARG "${ARGV${z_vcpkg_function_arguments_N}}")
list(APPEND "${OUT_VAR}" "${z_vcpkg_function_arguments_ESCAPED_ARG}")
endforeach()
endif()
endmacro()