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#[===[.md:
# vcpkg_execute_in_download_mode
Execute a process even in download mode.
## Usage
```cmake
vcpkg_execute_in_download_mode(
...
)
```
The signature of this function is identical to `execute_process()`.
See [`execute_process()`] for more details.
[`execute_process()`]: https://cmake.org/cmake/help/latest/command/execute_process.html
#]===]
function(vcpkg_execute_in_download_mode)
# this allows us to grab the value of the output variables, but pass through the rest of the arguments
cmake_parse_arguments(PARSE_ARGV 0 arg "" "RESULT_VARIABLE;RESULTS_VARIABLE;OUTPUT_VARIABLE;ERROR_VARIABLE" "")
set(output_and_error_same OFF)
set(output_variable_param "")
set(error_variable_param "")
set(result_variable_param "")
set(results_variable_param "")
if(DEFINED arg_OUTPUT_VARIABLE AND DEFINED arg_ERROR_VARIABLE AND arg_OUTPUT_VARIABLE STREQUAL arg_ERROR_VARIABLE)
set(output_variable_param OUTPUT_VARIABLE out_err_var)
set(error_variable_param ERROR_VARIABLE out_err_var)
set(output_and_error_same ON)
else()
if(DEFINED arg_OUTPUT_VARIABLE)
set(output_variable_param OUTPUT_VARIABLE out_var)
endif()
if(DEFINED arg_ERROR_VARIABLE)
set(error_variable_param ERROR_VARIABLE err_var)
endif()
endif()
if(DEFINED arg_RESULT_VARIABLE)
set(result_variable_param RESULT_VARIABLE result_var)
endif()
if(DEFINED arg_RESULTS_VARIABLE)
set(results_variable_param RESULTS_VARIABLE results_var)
endif()
cmake_language(CALL "${Z_VCPKG_EXECUTE_PROCESS_NAME}"
${arg_UNPARSED_ARGUMENTS}
${output_variable_param}
${error_variable_param}
${result_variable_param}
${results_variable_param}
)
if(output_and_error_same)
z_vcpkg_forward_output_variable(arg_OUTPUT_VARIABLE out_err_var)
else()
z_vcpkg_forward_output_variable(arg_OUTPUT_VARIABLE out_var)
z_vcpkg_forward_output_variable(arg_ERROR_VARIABLE err_var)
endif()
z_vcpkg_forward_output_variable(arg_RESULT_VARIABLE result_var)
z_vcpkg_forward_output_variable(arg_RESULTS_VARIABLE results_var)
endfunction()
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