mirror of
https://github.com/microsoft/vcpkg.git
synced 2024-12-15 00:29:33 +08:00
5283cdb370
* [script-audit] Make buildsystem * Fix wrongly merge * Fix rename * Format * Apply suggestions * Apply suggestion * Fix bug * Change the function names * Fix command line * Apply suggestions * version * typo * Apply suggestions * Fix bug * Fix path * Fix bug * Fix un=parser code, move macros to the top * Apply suggestions * Update docs * update doc * CRLF * add docs and add a PARENT_SCOPE * Update doc Co-authored-by: Billy Robert O'Neal III <bion@microsoft.com> Co-authored-by: nicole mazzuca <mazzucan@outlook.com>
60 lines
1.9 KiB
CMake
60 lines
1.9 KiB
CMake
#[===[.md:
|
|
# vcpkg_backup_restore_env_vars
|
|
|
|
Backup or restore the environment variables
|
|
|
|
## Usage:
|
|
```cmake
|
|
vcpkg_backup_env_variables(VARS [<environment-variable>...])
|
|
vcpkg_restore_env_variables(VARS [<environment-variable>...])
|
|
```
|
|
|
|
### VARS
|
|
The variables to back up or restore.
|
|
These are placed in the parent scope, so you must backup and restore
|
|
from the same scope.
|
|
|
|
## Notes
|
|
One must always call `vcpkg_backup_env_variables` before
|
|
`vcpkg_restore_env_variables`; however, `vcpkg_restore_env_variables`
|
|
does not change the back up variables, and so you may call `restore`
|
|
multiple times for one `backup`.
|
|
|
|
#]===]
|
|
|
|
function(vcpkg_backup_env_variables)
|
|
cmake_parse_arguments(PARSE_ARGV 0 arg "" "" "VARS")
|
|
if(NOT DEFINED arg_VARS)
|
|
message(FATAL_ERROR "VARS must be defined.")
|
|
endif()
|
|
if(DEFINED arg_UNPARSED_ARGUMENTS)
|
|
message(FATAL_ERROR "${CMAKE_CURRENT_FUNCTION} was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
|
|
endif()
|
|
|
|
foreach(envvar IN LISTS arg_VARS)
|
|
if(DEFINED ENV{${envvar}})
|
|
set("z_vcpkg_env_backup_${envvar}" "$ENV{${envvar}}" PARENT_SCOPE)
|
|
else()
|
|
unset("z_vcpkg_env_backup_${envvar}" PARENT_SCOPE)
|
|
endif()
|
|
endforeach()
|
|
endfunction()
|
|
|
|
function(vcpkg_restore_env_variables)
|
|
cmake_parse_arguments(PARSE_ARGV 0 arg "" "" "VARS")
|
|
if(NOT DEFINED arg_VARS)
|
|
message(FATAL_ERROR "VARS must be defined.")
|
|
endif()
|
|
if(DEFINED arg_UNPARSED_ARGUMENTS)
|
|
message(FATAL_ERROR "${CMAKE_CURRENT_FUNCTION} was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
|
|
endif()
|
|
|
|
foreach(envvar IN LISTS arg_VARS)
|
|
if(DEFINED z_vcpkg_env_backup_${envvar})
|
|
set("ENV{${envvar}}" "${z_vcpkg_env_backup_${envvar}}")
|
|
else()
|
|
unset("ENV{${envvar}}")
|
|
endif()
|
|
endforeach()
|
|
endfunction()
|