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50 lines
1.3 KiB
CMake
50 lines
1.3 KiB
CMake
# - Removes duplicate entries and non-directories from a provided list
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#
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# clean_directory_list(<listvar> [<additional list items>...])
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#
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# Requires CMake 2.6 or newer (uses the 'function' command)
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#
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# Original Author:
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# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
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# http://academic.cleardefinition.com
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# Iowa State University HCI Graduate Program/VRAC
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#
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# Copyright Iowa State University 2009-2010.
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# Distributed under the Boost Software License, Version 1.0.
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# (See accompanying file LICENSE_1_0.txt or copy at
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# http://www.boost.org/LICENSE_1_0.txt)
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# SPDX-License-Identifier: BSL-1.0
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if(__clean_directory_list)
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return()
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endif()
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set(__clean_directory_list YES)
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function(clean_directory_list _var)
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# combine variable's current value with additional list items
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set(_in ${${_var}} ${ARGN})
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if(_in)
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# Initial list cleaning
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list(REMOVE_DUPLICATES _in)
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# Grab the absolute path of each actual directory
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set(_out)
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foreach(_dir ${_in})
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if(IS_DIRECTORY "${_dir}")
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get_filename_component(_dir "${_dir}" ABSOLUTE)
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file(TO_CMAKE_PATH "${_dir}" _dir)
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list(APPEND _out "${_dir}")
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endif()
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endforeach()
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if(_out)
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# Clean up the output list now
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list(REMOVE_DUPLICATES _out)
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endif()
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# return _out
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set(${_var} "${_out}" PARENT_SCOPE)
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endif()
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endfunction()
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