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I'm coding a c++ project in vim.
I'd like to run a ctags command (ctags -R --c++-kinds=+p --fields=+iaS --extra=+q .) to generate references when I run make.
I think the way to do it is to use add_custom_command but I get confused on how to integrate it into CMakeLists.txt .
911
Running CMake from the command line From the command line, cmake can be run as an interactive question and answer session or as a non-interactive program. To run in interactive mode, just pass the option “-i” to cmake. This will cause cmake to ask you to enter a value for each value in the cache file for the project.
CMake will create makefiles inside many of the folders inside a build directory and you can run make or make -j8 in any of these directories and it will do the right thing. You can even run make in your src tree, but since there is no Makefile in your source tree, only CMakeLists.
The build process with CMake is straightforward: configuration files, called CMakeLists. txt files, are placed in the source directories and are then used to create standard build files. It can generate makefiles for many platforms and IDEs including Unix, Windows, Mac OS X, MSVC, Cygwin, MinGW and Xcode.
CMake is a meta build system that uses scripts called CMakeLists to generate build files for a specific environment (for example, makefiles on Unix machines). When you create a new CMake project in CLion, a CMakeLists. txt file is automatically generated under the project root.
The most basic way to do this is:
set_source_files_properties( tags PROPERTIES GENERATED true)
add_custom_command ( OUTPUT tags
COMMAND ctags -R --c++-kinds=+p --fields=+iaS --extra=+q .
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR} )
add_executable ( MyProjectOutput tags )
The first line tells CMake that tags will be generated. The add_custom_command is CMake will generate tags when needed, and finally, some target needs to depend on tags. The default working directory is in the build tree, so WORKING_DIRECTORY must be set to your source tree. This is equivalent a Makefile entry:
tags:
ctags -R --c++-kinds=+p --fields=+iaS --extra=+q .
MyProjectOutput: tags
# Whatever here...
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