Policies/CMake Coding Style

    From KDE TechBase

    This document describes the recommended coding style for CMake files in KDE, i.e. CMakeLists.txt files and *.cmake files.

    Indentation

    Indent all code correctly, i.e. the body of

    • IF/ELSE/ENDIF
    • FOREACH/ENDFOREACH
    • WHILE/ENDWHILE
    • MACRO/ENDMACRO
    • FUNCTION/ENDFUNCTION (CMake 2.6)

    Use spaces for indenting, 2, 3 or 4 spaces preferably. Use the same amount of spaces for indenting as is used in the rest of the file.

    Upper/lower casing

    CMake commands are case-insensitiv (only the commands, not the arguments or variable names). So all the following versions work: add_executable(foo foo.c) ADD_EXECUTABLE(bar bar.c) Add_Executable(hello hello.c) aDd_ExEcUtAbLe(hello hello.c)

    But this would be ugly. In KDE the all-lowercase style is preferred. The all-uppercase style is also ok. Mixing upper- and lowercase should not be done in KDE CMake files. Although all-lowercase is preferred, if a file is apparently in all-uppercase style, then stay consistent and also use all-uppercase in this file.

    Writing CMake Find-modules

    Follow the style guide from CMake when writing some FindFoo.cmake module: readme.txt