2018-08-14 07:07:26 +08:00
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## # vcpkg_add_to_path
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##
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## Add a directory to the PATH environment variable
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##
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## ## Usage
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## ```cmake
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## vcpkg_add_to_path([PREPEND] <${PYTHON3_DIR}>)
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## ```
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##
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## ## Parameters
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## ### <positional>
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## The directory to add
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##
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## ### PREPEND
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## Prepends the directory.
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##
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## The default is to append.
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2019-03-15 04:43:49 +08:00
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##
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## ## Examples:
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## * [curl](https://github.com/Microsoft/vcpkg/blob/master/ports/curl/portfile.cmake#L75)
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## * [folly](https://github.com/Microsoft/vcpkg/blob/master/ports/folly/portfile.cmake#L15)
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## * [z3](https://github.com/Microsoft/vcpkg/blob/master/ports/z3/portfile.cmake#L13)
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##
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2018-08-14 07:07:26 +08:00
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function(vcpkg_add_to_path)
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if(NOT "${ARGC}" STREQUAL "1" AND NOT "${ARGC}" STREQUAL "2")
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message(FATAL_ERROR "vcpkg_add_to_path() only accepts 1 or 2 arguments.")
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endif()
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if("${ARGV0}" STREQUAL "PREPEND")
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if(NOT "${ARGC}" STREQUAL "2")
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message(FATAL_ERROR "Expected second argument.")
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endif()
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if(CMAKE_HOST_WIN32)
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set(ENV{PATH} "${ARGV1};$ENV{PATH}")
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else()
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set(ENV{PATH} "${ARGV1}:$ENV{PATH}")
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endif()
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else()
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if(NOT "${ARGC}" STREQUAL "1")
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message(FATAL_ERROR "Unexpected second argument: ${ARGV1}")
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endif()
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if(CMAKE_HOST_WIN32)
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set(ENV{PATH} "$ENV{PATH};${ARGV0}")
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else()
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set(ENV{PATH} "$ENV{PATH}:${ARGV0}")
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endif()
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endif()
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endfunction()
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