[CMake] Get compiler command line (or json compilation database) for a target

[Roman Popov]

In general I don't understand why CMake provides a separate integration for
each tool (<LANG>_CLANG_TIDY <LANG>_COMPILER_LAUNCHER <LANG>_CPPCHECK
<LANG>_CPPLINT <LANG>_INCLUDE_WHAT_YOU_USE),

But a generic solution is not provided  (or not documented clearly? )

вт, 31 июл. 2018 г. в 9:47, Roman Popov <ripopov at gmail.com>:

> After day of googling I've found a solution that almost works for me.
>
> There is a CXX_CLANG_TIDY property that enables clang-tidy on a target.
> https://cmake.org/cmake/help/v3.12/prop_tgt/LANG_CLANG_TIDY.html
> But I can replace clang-tidy with my own Clang-based tool:
>
> set(CLANG_TIDY_EXE  ${MY_CLANG_BASED_TOOL} )
> set(DO_CLANG_TIDY "${CLANG_TIDY_EXE}" " --my-additional-options")
>
> set_target_properties(
>         my_exe_target PROPERTIES
>         CXX_CLANG_TIDY "${DO_CLANG_TIDY}"
> )
>
> The only drawback is that my tool will be run together with my_exe_target
> build.  And I want to run it as a separate build target.
>
> https://stackoverflow.com/questions/51618307/how-to-run-clang-based-tool-as-a-separate-cmake-target
>
>
> пн, 30 июл. 2018 г. в 0:12, Roman Popov <ripopov at gmail.com>:
>
>> Hi all,
>>
>> How can I get a full compiler command line for a given target in
>> CMakeLists project? I want to run Clang-based tool on some targets (using
>> CTest), and it requires same options as used during compilation.
>>
>> I know there is CMAKE_EXPORT_COMPILE_COMMANDS but it is not
>> taget-specific.
>>
>> There is a similar question on stackoverflow:
>> https://stackoverflow.com/questions/35808209/get-full-c-compiler-command-line
>> Here author suggets to use get_target_property on a target.  I've tried
>> this, but it does not work when some properties are inherited from
>> libraries (for example include paths).
>>
>> Do you have any ideas?
>>
>> Thanks,
>> Roman
>>
>
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