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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:
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# vcpkg_backup_restore_env_vars
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Backup or restore the environment variables
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## Usage:
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```cmake
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vcpkg_backup_env_variables(VARS [<environment-variable>...])
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vcpkg_restore_env_variables(VARS [<environment-variable>...])
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```
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### VARS
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The variables to back up or restore.
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These are placed in the parent scope, so you must backup and restore
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from the same scope.
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## Notes
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One must always call `vcpkg_backup_env_variables` before
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`vcpkg_restore_env_variables`; however, `vcpkg_restore_env_variables`
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does not change the back up variables, and so you may call `restore`
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multiple times for one `backup`.
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#]===]
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function(vcpkg_backup_env_variables)
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cmake_parse_arguments(PARSE_ARGV 0 arg "" "" "VARS")
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if(NOT DEFINED arg_VARS)
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message(FATAL_ERROR "VARS must be defined.")
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endif()
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if(DEFINED arg_UNPARSED_ARGUMENTS)
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message(FATAL_ERROR "${CMAKE_CURRENT_FUNCTION} was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
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endif()
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foreach(envvar IN LISTS arg_VARS)
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if(DEFINED ENV{${envvar}})
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set("z_vcpkg_env_backup_${envvar}" "$ENV{${envvar}}" PARENT_SCOPE)
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else()
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unset("z_vcpkg_env_backup_${envvar}" PARENT_SCOPE)
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endif()
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endforeach()
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endfunction()
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function(vcpkg_restore_env_variables)
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cmake_parse_arguments(PARSE_ARGV 0 arg "" "" "VARS")
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if(NOT DEFINED arg_VARS)
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message(FATAL_ERROR "VARS must be defined.")
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endif()
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if(DEFINED arg_UNPARSED_ARGUMENTS)
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message(FATAL_ERROR "${CMAKE_CURRENT_FUNCTION} was passed extra arguments: ${arg_UNPARSED_ARGUMENTS}")
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endif()
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foreach(envvar IN LISTS arg_VARS)
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if(DEFINED z_vcpkg_env_backup_${envvar})
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set("ENV{${envvar}}" "${z_vcpkg_env_backup_${envvar}}")
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else()
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unset("ENV{${envvar}}")
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endif()
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endforeach()
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endfunction()
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