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https://invent.kde.org/system/dolphin
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af8c491904
Summary: new finding tech: - find_gem function configures gem-specific FindFoo files and wraps around find_package - FindFoo files look for ruby and then attempt to require the gem name i.e. it checks if the gem can be successfully loaded by the interpreter - since this is based on find_package it may be influenced in all the regular ways (e.g. forced found or disabled from finding altogether via CMAKE_DISABLE_FIND_PACKAGE_$PKGNAME) various notes for the future: - technically this isn't 100% correct because the require name of a gem and the gem name may not be the same. e.g. the gem `docker-api` has the require name `docker`. for all currently used gems the names are however the same and so simply requiring the gem name is expected to work - the implementation doesn't care about versions, again because we don't need it to - test-unit is a bundled gem, some distributions (e.g. Arch) do split it out without making suitable dependency arrangements on a package level though the tech is heavily inspired by Aleix Pol's tech for finding QML modules as seen in extra-cmake-modules Test Plan: - ruby not found: none of the modules found - test-unit not present: error - simplecov not prseent: never errors - having a module installed or not is reported in the cmake output Reviewers: #dolphin, elvisangelaccio Reviewed By: #dolphin, elvisangelaccio Subscribers: elvisangelaccio, kfm-devel Tags: #dolphin Differential Revision: https://phabricator.kde.org/D19856
54 lines
2.1 KiB
CMake
54 lines
2.1 KiB
CMake
#=============================================================================
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# Copyright (c) 2019 Harald Sitter <sitter@kde.org>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#=============================================================================
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find_program(RUBY_EXE ruby)
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if(NOT RUBY_EXE)
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message(WARNING "Could not find ruby program")
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return()
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endif()
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execute_process(
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COMMAND ${RUBY_EXE} -e "require '@GEM_NAME@'"
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ERROR_VARIABLE ERROR_VAR
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RESULT_VARIABLE RESULT_VAR
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)
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if(RESULT_VAR EQUAL 0)
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set(@GEM_PACKAGE@_FOUND TRUE)
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else()
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message(WARNING ${ERROR_VAR})
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return()
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(@GEM_PACKAGE@
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FOUND_VAR
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@GEM_PACKAGE@_FOUND
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REQUIRED_VARS
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@GEM_PACKAGE@_FOUND
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)
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