[Rock-dev] [rock] #384: Adding CMAKE_EXPORT_COMPILE_COMMANDS to rock_standard_layout()

[rock]

#384: Adding CMAKE_EXPORT_COMPILE_COMMANDS to rock_standard_layout()
-----------------------------+-----------------------------------
 Reporter:  martin.zenzes@…  |      Owner:  rock-dev-mailing-list
     Type:  enhancement      |     Status:  new
 Priority:  minor            |  Milestone:
Component:  base             |   Keywords:  cmake,clang_complete
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 Hi,

 would be nice to have this cmake option set by default for all rock-cmake-
 projects. The option would create a file
 `${CMAKE_BINARY_DIR}/compile_commands.json`, containing the exact compile-
 calls for all translation units of a project. Benefits:

 - easier debugging of build process. Not always necessary to search
 manually in the output of `make -B VERBOSE=1|less`
 - allows using this file for code-completion tools like
 [https://github.com/Rip-Rip/clang_complete clang_complete] or
 [https://github.com/Valloric/YouCompleteMe YouCompleteMe]

 Adding this line in the beginning of the macro-definition of
 "rock_standard_library()" in Rock.cmake will do the trick for ordinary
 rock-libraries:
 {{{
     set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 }}}

 I didn't find an appropriate place for orogen-projects. There, all cmake-
 files are generated once? Adding the option manually in the beginning of
 the top-level `CMakeLists.txt` seems to work, for example.

 Adding it globally would help jumping to different sub-projects and using
 code-completion without introducing private local changes.

-- 
Ticket URL: <http://rock.opendfki.de/ticket/384>
rock <http://rock.opendfki.de>
rock: the robot construction kit