mirror of
https://github.com/microsoft/vcpkg.git
synced 2024-11-25 20:19:06 +08:00
bad2c589d5
* [vcpkg_host_path_list] add SET subcommand * update docs * try to do something that Billy might like more? * wheee Co-authored-by: nicole mazzuca <mazzucan@outlook.com> Co-authored-by: PhoebeHui <20694052+PhoebeHui@users.noreply.github.com>
96 lines
3.5 KiB
CMake
96 lines
3.5 KiB
CMake
#[===[
|
|
# vcpkg_host_path_list
|
|
|
|
Modify a host path list variable (PATH, INCLUDE, LIBPATH, etc.)
|
|
|
|
```cmake
|
|
vcpkg_host_path_list(PREPEND <list-var> [<path>...])
|
|
vcpkg_host_path_list(APPEND <list-var> [<path>...])
|
|
vcpkg_host_path_list(SET <list-var> [<path>...])
|
|
```
|
|
|
|
`<list-var>` may be either a regular variable name, or `ENV{variable-name}`,
|
|
in which case `vcpkg_host_path_list` will modify the environment.
|
|
|
|
`vcpkg_host_path_list` adds all of the paths passed to it to `<list-var>`;
|
|
`PREPEND` puts them before the existing list, so that they are searched first;
|
|
`APPEND` places them after the existing list,
|
|
so they would be searched after the paths which are already in the variable,
|
|
and `SET` replaces the value of the existing list.
|
|
|
|
For all of `APPEND`, `PREPEND`, and `SET`,
|
|
the paths are added (and thus searched) in the order received.
|
|
|
|
If no paths are passed to `APPEND` or `PREPEND`, nothing will be done;
|
|
for `SET`, the variable will be set to the empty string.
|
|
#]===]
|
|
|
|
function(z_vcpkg_translate_to_host_path_list out_var lst)
|
|
if(NOT DEFINED arg_UNPARSED_ARGUMENTS)
|
|
set("${out_var}" "" PARENT_SCOPE)
|
|
else()
|
|
if("${VCPKG_HOST_PATH_SEPARATOR}" STREQUAL ";")
|
|
set("${out_var}" "${lst}" PARENT_SCOPE)
|
|
|
|
string(FIND "${lst}" [[\;]] index_of_host_path_separator)
|
|
else()
|
|
vcpkg_list(JOIN lst "${VCPKG_HOST_PATH_SEPARATOR}" arguments)
|
|
set("${out_var}" "${arguments}" PARENT_SCOPE)
|
|
|
|
string(FIND "${lst}" "${VCPKG_HOST_PATH_SEPARATOR}" index_of_host_path_separator)
|
|
endif()
|
|
if(NOT "${index_of_host_path_separator}" EQUAL "-1")
|
|
message(FATAL_ERROR "Host path separator (${VCPKG_HOST_PATH_SEPARATOR}) in path; this is unsupported.")
|
|
endif()
|
|
endif()
|
|
endfunction()
|
|
|
|
function(vcpkg_host_path_list)
|
|
if("${ARGC}" LESS "2")
|
|
message(FATAL_ERROR "vcpkg_host_path_list requires at least two arguments.")
|
|
endif()
|
|
|
|
if("${ARGV1}" MATCHES "^ARGV([0-9]*)$|^ARG[CN]$|^CMAKE_CURRENT_FUNCTION|^CMAKE_MATCH_")
|
|
message(FATAL_ERROR "vcpkg_host_path_list does not support the list_var being ${ARGV1}.
|
|
Please use a different variable name.")
|
|
endif()
|
|
|
|
if("${ARGV1}" MATCHES [[^ENV\{(.*)\}$]])
|
|
set(list "$ENV{${CMAKE_MATCH_1}}")
|
|
set(env_var ON)
|
|
elseif("${ARGV1}" MATCHES [[^([A-Z]+)\{.*\}$]])
|
|
message(FATAL_ERROR "vcpkg_host_path_list does not support ${CMAKE_MATCH_1} variables;
|
|
only ENV{} and regular variables are supported.")
|
|
else()
|
|
set(list "${${ARGV1}}")
|
|
set(env_var OFF)
|
|
endif()
|
|
set(operation "${ARGV0}")
|
|
set(list_var "${ARGV1}")
|
|
|
|
cmake_parse_arguments(PARSE_ARGV 2 arg "" "" "")
|
|
z_vcpkg_translate_to_host_path_list(arguments "${arg_UNPARSED_ARGUMENTS}")
|
|
|
|
if("${operation}" STREQUAL "SET")
|
|
set(list "${arguments}")
|
|
elseif("${operation}" MATCHES "^(APPEND|PREPEND)$")
|
|
if("${arguments}" STREQUAL "")
|
|
# do nothing
|
|
elseif("${list}" STREQUAL "")
|
|
set(list "${arguments}")
|
|
elseif(arg_PREPEND)
|
|
set(list "${arguments}${VCPKG_HOST_PATH_SEPARATOR}${list}")
|
|
else()
|
|
set(list "${list}${VCPKG_HOST_PATH_SEPARATOR}${arguments}")
|
|
endif()
|
|
else()
|
|
message(FATAL_ERROR "Operation ${operation} not recognized.")
|
|
endif()
|
|
|
|
if(env_var)
|
|
set("${list_var}" "${list}")
|
|
else()
|
|
set("${list_var}" "${list}" PARENT_SCOPE)
|
|
endif()
|
|
endfunction()
|