Re: [CMake] How to read and compile dynamically-generated list of cpp files
On 2014-02-03 11:44, gimmeamilk gimmeamilk wrote: I have a custom tool that processes a given list of IDL files and produces a number of .cpp and .h files as output. I want to add those files to the list of things to compile in my CMakeLists, and also model the dependencies those files have on the IDL. To keep things simple, I will state that any change to any of the IDL files should trigger a regeneration of all cpp/h. I have a custom command that takes care of running the generator tool and listing all the IDL files as dependencies. My issue is getting the subsequent list of cpp/h files into cmake at build-time. It is not possible to infer from the name of the IDL files what cpp files will be generated. My generator tool will, however, output the list of generated files to a text file. My usual approach to problems like these is to figure out a way to compute the list of output files *without* actually generating them (ideally by the generation tool having a mode to do that), and to then arrange (1) for that to happen at configure time, and (2) for configuration to depend on the input file(s). (For example, generating Python bindings with Shiboken is a similar problem.) Alternatively, you can create an external project that you configure and build as part of your build step. (This might work strangely on e.g. MSVC, however.) -- Matthew -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] How to read and compile dynamically-generated list of cpp files
generate a cmake script and include said script? use FILE() command and open the file to read it? On Mon, Feb 3, 2014 at 8:44 AM, gimmeamilk gimmeamilk gimmeamilkb...@googlemail.com wrote: Hi all, I have a custom tool that processes a given list of IDL files and produces a number of .cpp and .h files as output. I want to add those files to the list of things to compile in my CMakeLists, and also model the dependencies those files have on the IDL. To keep things simple, I will state that any change to any of the IDL files should trigger a regeneration of all cpp/h. I have a custom command that takes care of running the generator tool and listing all the IDL files as dependencies. My issue is getting the subsequent list of cpp/h files into cmake at build-time. It is not possible to infer from the name of the IDL files what cpp files will be generated. My generator tool will, however, output the list of generated files to a text file. So my question is: how do I instruct cmake to read from this text file and add the contents as extra source and header files to be compiled, also bearing in mind that the said text file only exists during a certain point of the build? Many thanks -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] How to read and compile dynamically-generated list of cpp files
A generated CMake script would only be processed at configuration time. I need something that gets processed at build time. Thanks On 3 Feb 2014, at 17:29, J Decker d3c...@gmail.com wrote: generate a cmake script and include said script? use FILE() command and open the file to read it? On Mon, Feb 3, 2014 at 8:44 AM, gimmeamilk gimmeamilk gimmeamilkb...@googlemail.com wrote: Hi all, I have a custom tool that processes a given list of IDL files and produces a number of .cpp and .h files as output. I want to add those files to the list of things to compile in my CMakeLists, and also model the dependencies those files have on the IDL. To keep things simple, I will state that any change to any of the IDL files should trigger a regeneration of all cpp/h. I have a custom command that takes care of running the generator tool and listing all the IDL files as dependencies. My issue is getting the subsequent list of cpp/h files into cmake at build-time. It is not possible to infer from the name of the IDL files what cpp files will be generated. My generator tool will, however, output the list of generated files to a text file. So my question is: how do I instruct cmake to read from this text file and add the contents as extra source and header files to be compiled, also bearing in mind that the said text file only exists during a certain point of the build? Many thanks -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] How to read and compile dynamically-generated list of cpp files
Run another layer of cmake that uses the new file? On Mon, Feb 3, 2014 at 9:33 AM, Gimmeamilk gimmeamilkb...@googlemail.com wrote: A generated CMake script would only be processed at configuration time. I need something that gets processed at build time. Thanks On 3 Feb 2014, at 17:29, J Decker d3c...@gmail.com wrote: generate a cmake script and include said script? use FILE() command and open the file to read it? On Mon, Feb 3, 2014 at 8:44 AM, gimmeamilk gimmeamilk gimmeamilkb...@googlemail.com wrote: Hi all, I have a custom tool that processes a given list of IDL files and produces a number of .cpp and .h files as output. I want to add those files to the list of things to compile in my CMakeLists, and also model the dependencies those files have on the IDL. To keep things simple, I will state that any change to any of the IDL files should trigger a regeneration of all cpp/h. I have a custom command that takes care of running the generator tool and listing all the IDL files as dependencies. My issue is getting the subsequent list of cpp/h files into cmake at build-time. It is not possible to infer from the name of the IDL files what cpp files will be generated. My generator tool will, however, output the list of generated files to a text file. So my question is: how do I instruct cmake to read from this text file and add the contents as extra source and header files to be compiled, also bearing in mind that the said text file only exists during a certain point of the build? Many thanks -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] How to read and compile dynamically-generated list of cpp files
could use configure_file instead of writing the file if you have a cmakelists.template that has some variables to substitute for the c++ files would be easier On Mon, Feb 3, 2014 at 9:58 AM, J Decker d3c...@gmail.com wrote: Run another layer of cmake that uses the new file? On Mon, Feb 3, 2014 at 9:33 AM, Gimmeamilk gimmeamilkb...@googlemail.com wrote: A generated CMake script would only be processed at configuration time. I need something that gets processed at build time. Thanks On 3 Feb 2014, at 17:29, J Decker d3c...@gmail.com wrote: generate a cmake script and include said script? use FILE() command and open the file to read it? On Mon, Feb 3, 2014 at 8:44 AM, gimmeamilk gimmeamilk gimmeamilkb...@googlemail.com wrote: Hi all, I have a custom tool that processes a given list of IDL files and produces a number of .cpp and .h files as output. I want to add those files to the list of things to compile in my CMakeLists, and also model the dependencies those files have on the IDL. To keep things simple, I will state that any change to any of the IDL files should trigger a regeneration of all cpp/h. I have a custom command that takes care of running the generator tool and listing all the IDL files as dependencies. My issue is getting the subsequent list of cpp/h files into cmake at build-time. It is not possible to infer from the name of the IDL files what cpp files will be generated. My generator tool will, however, output the list of generated files to a text file. So my question is: how do I instruct cmake to read from this text file and add the contents as extra source and header files to be compiled, also bearing in mind that the said text file only exists during a certain point of the build? Many thanks -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
Re: [CMake] How to read and compile dynamically-generated list of cpp files
Hi, On Mon, Feb 03, 2014 at 12:00:02PM -0500, cmake-requ...@cmake.org wrote: Date: Mon, 3 Feb 2014 16:44:28 + From: gimmeamilk gimmeamilk gimmeamilkb...@googlemail.com Hi all, I have a custom tool that processes a given list of IDL files and produces a number of .cpp and .h files as output. I want to add those files to the list of things to compile in my CMakeLists, and also model the dependencies those files have on the IDL. To keep things simple, I will state that any change to any of the IDL files should trigger a regeneration of all cpp/h. I have a custom command that takes care of running the generator tool and listing all the IDL files as dependencies. My issue is getting the subsequent list of cpp/h files into cmake at build-time. It is not possible to infer from the name of the IDL files what cpp files will be generated. My generator tool will, however, output the list of generated files to a text file. So my question is: how do I instruct cmake to read from this text file and add the contents as extra source and header files to be compiled, also bearing in mind that the said text file only exists during a certain point of the build? Judging from my (in?)sufficient amounts of CMake experience, I'd say that's not possible, since we'd be talking build-time (IOW, generator-type-specific) injection of dependencies into the generated build system. But then CMake does have some amounts of interesting features, so I might end up staying corrected (the only feasible mechanism might be to configure the IDL user side as an ExternalProject, to have its configure-time activity - and thus its analysis of the generated text file - happen during build-time execution of the main project). I've been spending quite some time integrating (M?)IDL support into my vcproj2cmake converter, so I know that several IDL compilers have options for specifying specific files (IID header, proxy header, etc.). And I'd expect such a capability to be required anyway, since it's *fixed source files* content which thus has no choice but to #include *specifically-named* files, thus the build process would *have to* be able to custom-name such output file names. Plus, I can report that on .vc[x]proj files there are rather liberal possibilities for custom-named patterns of IDL-related output filenames. So I'm mildly astonished that one would have a setup where this is NOT the case. BTW, it might be very worthwhile to provide an actual CMake LANGUAGE configuration for your IDL compiler mechanism, for pretty automatic specification of IDL files etc. (but perhaps it's wise to choose a language identifier other than a plain IDL, since CMake might choose to provide generic IDL support on its own eventually). HTH (got milk?), Andreas Mohr -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
