vcpkg/scripts/cmake/vcpkg_execute_in_download_mode.cmake
nicole mazzuca 6b117c9c7e
[vcpkg docs] Check for documentation generation in CI (#14614)
* [vcpkg docs] Change how documenting port functions works

Instead of using `##`, use comment blocks for documentation.

Also, add some minor docs and change RST -> MD
so we actually get docs generated.

* add CI stuff

* regenerate docs

* fix vcpkg_find_acquire_program to not use _execute_process
2020-12-01 13:37:26 -08:00

68 lines
2.5 KiB
CMake

#[===[.md:
# vcpkg_execute_in_download_mode
Execute a process even in download mode.
## Usage
```cmake
vcpkg_execute_in_download_mode(
COMMAND <cmd> [<arguments>]
[WORKING_DIRECTORY <dir>]
[TIMEOUT <seconds>]
[RESULT_VARIABLE <variable>]
[OUTPUT_VARIABLE <variable>]
[ERROR_VARIABLE <variable>]
[INPUT_FILE <file>]
[OUTPUT_FILE <file>]
[ERROR_FILE <file>]
[OUTPUT_QUIET]
[ERROR_QUIET]
[OUTPUT_STRIP_TRAILING_WHITESPACE]
[ERROR_STRIP_TRAILING_WHITESPACE]
[ENCODING <name>]
)
```
The signature of this function is identical to `execute_process()` except that
it only accepts one COMMAND argument, i.e., does not support chaining multiple
commands with pipes.
See [`execute_process()`] for a detailed description of the parameters.
[`execute_process()`]: https://cmake.org/cmake/help/latest/command/execute_process.html
#]===]
function(vcpkg_execute_in_download_mode)
# parse parameters such that semicolons in options arguments to COMMAND don't get erased
cmake_parse_arguments(PARSE_ARGV 0 vcpkg_execute_in_download_mode
"OUTPUT_QUIET;ERROR_QUIET;OUTPUT_STRIP_TRAILING_WHITESPACE;ERROR_STRIP_TRAILING_WHITESPACE"
"WORKING_DIRECTORY;TIMEOUT;RESULT_VARIABLE;RESULTS_VARIABLE;OUTPUT_VARIABLE;ERROR_VARIABLE;INPUT_FILE;OUTPUT_FILE;ERROR_FILE;ENCODING"
"COMMAND")
# collect all other present parameters
set(other_args "")
foreach(arg OUTPUT_QUIET ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_STRIP_TRAILING_WHITESPACE)
if(vcpkg_execute_in_download_mode_${arg})
list(APPEND other_args ${arg})
endif()
endforeach()
foreach(arg WORKING_DIRECTORY TIMEOUT RESULT_VARIABLE RESULTS_VARIABLE OUTPUT_VARIABLE ERROR_VARIABLE INPUT_FILE OUTPUT_FILE ERROR_FILE ENCODING)
if(vcpkg_execute_in_download_mode_${arg})
list(APPEND other_args ${arg} ${vcpkg_execute_in_download_mode_${arg}})
endif()
endforeach()
if (DEFINED VCPKG_DOWNLOAD_MODE)
_execute_process(COMMAND ${vcpkg_execute_in_download_mode_COMMAND} ${other_args})
else()
execute_process(COMMAND ${vcpkg_execute_in_download_mode_COMMAND} ${other_args})
endif()
# pass output parameters back to caller's scope
foreach(arg RESULT_VARIABLE RESULTS_VARIABLE OUTPUT_VARIABLE ERROR_VARIABLE)
if(vcpkg_execute_in_download_mode_${arg})
set(${vcpkg_execute_in_download_mode_${arg}} ${${vcpkg_execute_in_download_mode_${arg}}} PARENT_SCOPE)
endif()
endforeach()
endfunction()