52 lines
1.7 KiB
Markdown
52 lines
1.7 KiB
Markdown
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# vcpkg_execute_required_process
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The latest version of this document lives in the [vcpkg repo](https://github.com/Microsoft/vcpkg/blob/master/docs/maintainers/vcpkg_execute_required_process.md).
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Execute a process with logging and fail the build if the command fails.
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## Usage
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```cmake
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vcpkg_execute_required_process(
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COMMAND <${PERL}> [<arguments>...]
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WORKING_DIRECTORY <${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg>
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LOGNAME <build-${TARGET_TRIPLET}-dbg>
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[TIMEOUT <seconds>]
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[OUTPUT_VARIABLE <var>]
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[ERROR_VARIABLE <var>]
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)
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```
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## Parameters
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### ALLOW_IN_DOWNLOAD_MODE
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Allows the command to execute in Download Mode.
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[See execute_process() override](../../scripts/cmake/execute_process.cmake).
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### COMMAND
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The command to be executed, along with its arguments.
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### WORKING_DIRECTORY
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The directory to execute the command in.
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### LOGNAME
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The prefix to use for the log files.
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### TIMEOUT
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Optional timeout after which to terminate the command.
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### OUTPUT_VARIABLE
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Optional variable to receive stdout of the command.
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### ERROR_VARIABLE
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Optional variable to receive stderr of the command.
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This should be a unique name for different triplets so that the logs don't conflict when building multiple at once.
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## Examples
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* [ffmpeg](https://github.com/Microsoft/vcpkg/blob/master/ports/ffmpeg/portfile.cmake)
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* [openssl](https://github.com/Microsoft/vcpkg/blob/master/ports/openssl/portfile.cmake)
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* [boost](https://github.com/Microsoft/vcpkg/blob/master/ports/boost/portfile.cmake)
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* [qt5](https://github.com/Microsoft/vcpkg/blob/master/ports/qt5/portfile.cmake)
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## Source
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[scripts/cmake/vcpkg\_execute\_required\_process.cmake](https://github.com/Microsoft/vcpkg/blob/master/scripts/cmake/vcpkg_execute_required_process.cmake)
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